A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
The problems or issues faced by typical larger SSE batteries are solved by providing an interface or interfacial layer at least between the anode, which comprises Li or Na, and the solid state electrolyte (SSE). In some other embodiments, an interfacial layer may be provided between the anode, which comprises Li or Na, and the SSE, and an interface or interfacial layer may also be provided between the cathode and the SSE. In at least selected embodiments, aspects or objects, the interfacial layer may act as a shock absorber between a SSE (e.g., a sulfide glass SSE) and an anode material that is soft compared to the SSE (e.g., Li metal). In other embodiments, the interfacial layer may act as a shock absorber between the SSE and a cathode material that is softer than the SSE. In at least certain embodiments, the interfacial layer may improve ionic conductance between the anode and the SSE and/or the SSE and the cathode. In at least certain selected embodiments, the interfacial layer may prevent or deter lithium deposition and dendrite growth at the interface between the anode and the SSE. Interface defects at the interface between the anode and the SSE may allow lithium deposition and dendrite growth. The dendrites may continue to grow through cracks in the SSE causing a short, which is a safety issue. The inventive interfacial layer between the anode and the SSE may prevent or deter this. In at least some embodiments, the interfacial layer may be a porous polymer layer filled with liquid electrolyte and may improve ionic conductance between the anode and the SSE and/or the SSE and the cathode. In certain embodiments, the anode interface or interfacial layer may be a porous polymer layer filled with liquid electrolyte. In some embodiments, the cathode interface or interfacial layer may be a porous polymer layer filled with liquid, gel or polymer electrolyte.
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
Disclosed herein are battery separators that include a microporous membrane and a coating. The coating may comprise, consist, or consist essentially of polymeric components, inorganic components, or combinations thereof. The battery separators described herein are, among other things, thinner, stronger, and more wettable with electrolyte than some prior battery separators. The battery separators may be used in secondary or rechargeable batteries, including lithium ion batteries. The batteries may be used in vehicles or devices such as cell phones, tablets, laptops, and e-vehicles.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
A composite for forming an improved semi-solid state electrolyte. The composite has a layer formed including lithium metaphosphate (LiPOs). The layer may include a mixture of LiPOs and PEO. The composite may be wet with liquid electrolyte to form the semi-solid state electrolyte. When used in a semi-solid state battery, the semi-solid state electrolyte provides beneficial results, including improved cycle life and less lithium dendrite growth. Another composite for forming an improved semi-solid state electrolyte has a layer formed including LiTaOs and LiNbOs. Yet another composite has a single layer formed to include a mixture of a polyethylene oxide and a lithium-containing salt, including a lithium salt including niobium, tantalum, or mixtures thereof. Such composites may be wet with liquid electrolyte to form the semi-solid state electrolyte. When used in a semi-solid state battery, the semi-solid state electrolyte provides beneficial results, including improved cycle life and less lithium dendrite growth.
Described are dry process microporous membranes for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns. The membrane may be used in an ultra-filtration or nano-filtration process such as for processing microelectronics or semiconductor processing fluids.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
6.
COMPOSITE LAYERS OR SEPARATORS FOR LEAD ACID BATTERIES
Disclosed herein are novel or improved fibrous layers, composites, composite separators, separators, composite mat separators, composite mat separators containing fibers and silica particles, battery separators, lead acid battery separators, and/or flooded lead acid battery separators, and/or batteries, cells, and/or methods of manufacture and/or use of such fibrous layers, composites, composite separators, separators, battery separators, lead acid battery separators, cells, and/or batteries. In addition, disclosed herein are methods, systems, and battery separators for enhancing battery life, reducing internal resistance, reducing metalloid poisoning, reducing acid stratification, and/or improving uniformity in at least enhanced flooded batteries.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
7.
SEPARATORS FOR HIGH VOLTAGE RECHARGEABLE LITHIUM BATTERIES AND RELATED METHODS
In accordance with at least selected embodiments, the present disclosure or invention is directed to improved or novel separators, cells, batteries, and/or methods of manufacture and/or use. In accordance with at least certain embodiments, the present disclosure or invention is directed to improved or novel separators such as a separator for a high energy and/or high voltage lithium ion battery which is stable up to a 4.5 volt, or preferably up to a 5.0 volt or higher charging voltage, such as a novel or improved single or multilayer or multiply microporous separator membrane. In accordance with at least selected embodiments, the present application or invention is directed to novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, cells, methods of making such membranes or substrates, separators, cells, and/or batteries, and/or methods of using such membranes or substrates, separators, cells, and/or batteries. In accordance with at least certain embodiments, the present application is directed to novel or improved microporous membranes, battery separator membranes, separators, energy storage devices, batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries. In accordance with at least certain selected embodiments, the present invention is directed to a novel or improved separator membrane or separator with or without embedded particles or materials, such as ceramic particles or materials, for example, aluminum oxide, boehmite, and/or barium, and/or with or without novel polymers, such as PVDF or PMP, and/or with or without one or more ceramic coatings, for a battery which is stable up to at least 5 volts in a battery, a novel or improved polymer membrane, or polymeric microporous membrane, adapted for use in a 4.5 volt, 4.7 volt, or 5 volt or higher rechargeable or secondary lithium battery and/or which provides for the energy density of a battery to be increased and/or has excellent oxidation resistance. In accordance with at least particular embodiments, the battery separator membrane described herein is directed to a single or multilayer or composite microporous membrane battery separator which may have excellent oxidation resistance and/or may be stable in a high voltage lithium battery system up to 5 volts or more.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
Disclosed is an improved non-continuous and water-based adhesive coating containing large polymeric particles or agglomerate with an average particle size (D50) greater than 5 microns. The coating may be applied onto one or both sides of a porous film or membrane. A method of forming the coating involves applying an aqueous slurry containing the large polymeric particles with a D50 greater than 5 microns onto a porous membrane. The method of application may be a spray coating method. The coated porous film or membrane may be a battery separator. The coated porous film or membrane may include a fiber layer on at least one side. The fiber layer can be adhered to a porous film or membrane (such as a wet PE, dry PR, dry PP/PE/PP trilayer, etc.) by coating layers with pressure activated at different temperature from 25 deg C to 110 deg C or may be extruded, electrospun, laminated, co-extruded, or the like to or on the porous film or membrane or to, in, or on the coating.
Disclosed herein are battery separators that include a microporous membrane and a coating. The coating may comprise, consist, or consist essentially of polymeric components, inorganic components, or combinations thereof. The battery separators described herein are, among other things, thinner, stronger, and more wettable with electrolyte than some prior battery separators. The battery separators may be used in secondary or rechargeable batteries, including lithium ion batteries. The batteries may be used in vehicles or devices such as cell phones, tablets, laptops, and e-vehicles.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
Disclosed is a new or improved polyolefin separator for use in secondary batteries, especially sodium-ion batteries and high-density lithium ion batteries. The battery separator comprises a porous polyolefin membrane. The membrane may have a surfactant, e.g., a cross-linkable surfactant, provided on or impregnated into at least one surface thereof to improve wettability with respect to polar solvents like propylene carbonate (PC). Also, at least one surface of the membrane may be treated to improve wettability with respect to polar solvents like propylene carbonate (PC). In another embodiment, an organic solvent based PVDF or PVDF:HFP copolymer coating is coated on and into a high porosity separator or base film. This PVDF or PVDF:HFP layer can function as a 3D sub film intercalated to the base film to increase wettability and mechanical strength.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
11.
BATTERY SEPARATORS, BATTERY GELATION COMPOSITE SUBSTRATES, BATTERY SEPARATOR COATED MEMBRANES, RELATED METHODS, AND CELLS, BATTERIES OR SYSTEMS INCORPORATING THE SAME
A coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane is provided comprising a microporous substrate; and a coating on one or both sides of the microporous substrate. The coating comprises a polymeric binder and inorganic filler or siliceous material. In some examples, the separator is coated on one or both sides of the microporous substrate or membrane, wherein the coating comprises a polymeric binder, siliceous material, and carboxymethyl cellulose (CMC). In some examples, the microporous substrate may be a ribbed microporous substrate comprising polyethylene. Also provided are batteries including the coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane. Such batteries may be improved flooded lead acid batteries, VRLA gel batteries, AGM batteries, storage batteries, or flow batteries.
Disclosed herein is a composite membrane for a flow battery, having: a hydrophilic porous flat-sheet filled polyolefin membrane; and at least one other hydrophilic porous flat-sheet membrane. In other embodiments, an asymmetric hydrophilic porous flat-sheet membrane is disclosed. The asymmetric hydrophilic porous flat-sheet membrane may be an asymmetric hydrophilic porous filled polyolefin flat-sheet membrane.
A ceramic-coated battery separator exhibiting improved safety has the following structure: a battery separator; and a ceramic coating that comprises ceramic micro-wires. The ceramic coating may comprise ceramic micro-wires as the only ceramic material, or may comprise a mixture of ceramic micro-wires and ceramic particles.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
14.
COATED BATTERY SEPARATOR COMPRISING POROUS POLYMERIC COATING, AND BATTERY COMPRISING THE SAME
A coated battery separator, comprising the battery separator; and a porous coating on at least one side of the battery separator, wherein the porous coating comprises a polymer comprising an amide functional group.
Systems and methods of evaluating the electrochemical stability of material are provided comprising providing an electrochemical cell having a tube cell, electrolyte material, and at least one reference electrode and at least one working electrode. The working electrode can be at least one of aluminum and copper foil. In some instances, the working electrode can be coated with a test material. In some other instances, the electrolyte material can be pretreated with a test material. The electrochemical cell can be subjected to a cyclic voltammetry procedure in part to determine physical and/or chemical attributes of the test material.
In accordance with at least selected embodiments, the present application or invention is directed to novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, methods of making such membranes or substrates, separators, and/or batteries, and/or methods of using such membranes or substrates, separators and/or batteries. In accordance with at least certain embodiments, the present application is directed to novel or improved porous membranes having a coating layer, battery separator membranes having a coating layer, separators, energy storage devices, batteries, including lead acid batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries. The disclosed separators and/or batteries have improved charge acceptance, improved surface conductivity, improved oxidation resistance, reduced acid stratification, improved resistance to metal contamination induced oxidation, reduced black residue, improved wettability, and/or improved stiffness.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed is an improved non-continuous and water-based adhesive coating containing large polymeric particles or agglomerate with an average particle size (D50) greater than 5 microns. The coating may be applied onto one or both sides of a porous film. A method of forming the coating involves applying an aqueous slurry containing the large polymeric particles with a D50 greater than 5 microns onto a porous membrane. The method of application may be a spray coating method.
A microporous film having at least one of the following properties: unrestrained MD shrinkage, when the film is baked unrestrained at 90° C. for 1 hour, of 2% or more; unrestrained MD shrinkage, when the film is baked unrestrained at 105° C. for 1 hour, of 2.5% or more; MD restrained growth, when measured using the MD restrained growth test, of less than or equal to 0.2%; rebound or recovery of 5% or greater when measured by the compressibility test; a max compression greater than or equal to 18% when measured by the compressibility test; swelling in DEC when measured according to the swelling in DEC test of 0.95% or less; the film exhibits a round-shaped, not a slit-shaped opening when subjected to the puncture test; the lamellae of the film have a thickness no greater than 250 nm; a normalized puncture strength above 350 g/16 micron; and having higher modulus and lower elongation before break of less than 40% in the machine direction. Also disclosed is a battery separator, battery, or device comprising at least one microporous film as described herein.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In accordance with at least selected embodiments, a battery separator or separator membrane comprises one or more co-extruded multi-microlayer membranes optionally laminated or adhered to another polymer membrane. The separators described herein may provide improved strength, for example, improved puncture strength, particularly at a certain thickness, and may exhibit improved shutdown and/or a reduced propensity to split.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Microporous extruded plastic film and sheet, low friction polymer laminates, extruded plastic film and sheet, and insulating liquid blocking, vapor transmitting membranes, breathable insulating waterproofing membranes for use in the manufacture of textiles and textile goods; Microporous extruded plastic film and sheet, low friction polymer laminates, extruded plastic film and sheet, and insulating liquid blocking, vapor transmitting membranes, breathable insulating waterproofing membranes for use in the manufacture of clothing, headgear, and footwear goods; Extruded plastic in the form of films and sheets, manmade microporous extruded plastic film and sheet, microporous extruded plastic film and sheet, for use in manufacturing degassing machines, medical devices, sterile packaging, and control release machines; Microporous extruded plastic film for separate applications, namely, for use in the manufacture of textiles, clothing, medical devices, sterile packaging and control release devices; Microporous extruded plastic film and sheet for separations applications, namely, for use in manufacturing medical devices, sterile packaging, and control release devices; Extruded plastic film and sheet, and insulating, liquid blocking, vapor transmitting, breathable membranes for textiles and textile goods
A membrane is a microporous sheet made of a blend of a first ultra high molecular weight polyolefin and a second ultra high molecular weight polyolefin. Each polyolefin has a molecular weight, both of those molecular weights are greater than 1 million, and one molecular weight is greater than the other. Additionally, the intrinsic viscosity (IV) of the membrane may be greater than or equal to 6.3.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed are embossed microporous membranes, as well as articles (e.g., battery separators, materials, textiles, composites, and laminates) comprising the embossed microporous membranes. Also provided are methods of making and/or using embossed microporous membranes.
B29C 55/00 - Shaping by stretching, e.g. drawing through a dieApparatus therefor
B29C 55/02 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets
B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
B29C 55/16 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial simultaneously
B29C 59/02 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing
B29K 23/00 - Use of polyalkenes as moulding material
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A microporous membrane is made by a dry-stretch process and has substantially round shaped pores and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0. The method of making the foregoing microporous membrane includes the steps of: extruding a polymer into a nonporous precursor, and biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction stretching including a simultaneous controlled machine direction relax.
B32B 5/32 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous both layers being foamed or specifically porous
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/08 - Flat, e.g. panels flexible, e.g. films
B29C 55/00 - Shaping by stretching, e.g. drawing through a dieApparatus therefor
B29C 55/14 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial successively
B29K 105/04 - Condition, form or state of moulded material cellular or porous
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
[OBJECT] The present invention aims to provide suitable workability of an envelope-shaped separator for a lead-acid battery.
[OBJECT] The present invention aims to provide suitable workability of an envelope-shaped separator for a lead-acid battery.
[SOLVING MEANS] Provided is a separator for a flooded lead-acid battery, the separator including a porous base part, side end parts arranged on width direction ends of the porous base part, and a central part interposed by the side end parts, wherein a first rib is arranged in the central part and second ribs are arranged in the side end parts, the first rib has a rib height greater than that of the second ribs, the ratio of the width (U) between both upper end parts to the rib height (H) of a rib width direction cross-section of the second ribs is 0.08 to 5.50 and the ratio of the width(S) between both lower end parts to the rib height (H) thereof is 0.13 to 6.50, the second ribs have radii of curvature (1, 2) at both upper end parts and both lower end parts of the rib width direction cross-section, and the radii of curvature (1, 2) are in the range of 0.005 to 0.350 mm.
A two-side coated battery separator that has an adhesive layer on each side is described. The adhesive layer on one side is formed from a different coating formulation than the adhesive layer on an opposite side. In some embodiment, an adhesive layer on one side is formed on top of a ceramic layer and an adhesive layer on the other side is formed directly on the battery separator. A battery comprising this two-side coated battery separator is also described.
A battery separator for a lead/acid battery is resistant to oxidation arising from the use of water or acid containing contaminants, for example chromium (Cr), manganese (Mn), titanium (Ti), copper (Cu), and the like. The separator is a microporous membrane including a rubber. The rubber is no more than about 12% by weight of the separator. The rubber may be rubber latex, tire crumb, and combinations thereof. The rubber may be impregnated into the microporous membrane. The microporous membrane may be a microporous sheet of polyolefin, polyvinyl chloride, phenol-formaldehyde resins, cross-linked rubber, or nonwoven fibers. A method for preventing the oxidation and/or extending battery life of the separator is also included.
A separator is provided with a novel construction and/or a combination of improved properties. Batteries, methods, and systems associated therewith are also provided. In certain embodiments, novel or improved separators, battery separators, enhanced flooded battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, enhanced flooded battery separators, cells, and/or batteries are provided. In addition, there is disclosed herein methods, systems, and battery separators having a reduced ER, improved puncture strength, improved separator CMD stiffness, improved oxidation resistance, reduced separator thickness, reduced basis weight, and any combination thereof. In accordance with at least certain embodiments, separators are provided in battery applications for flat-plate batteries, tubular batteries, vehicle SLI, and HEV ISS applications, deep cycle applications, golf car or golf cart, and e-rickshaw batteries, batteries operating in a partial state of charge (“PSOC”), inverter batteries; and storage batteries for renewable energy sources, and any combination thereof.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed herein are new or improved method for measuring battery separators that are more suitable for modern battery separators and may more accurately predict performance in the battery. Also disclosed are characteristics of an ideal separator that may be measured according to the new or improved methods herein. The ideal separator may comprise one of more of the following properties: low electrical resistance (ER)/σi approaching infinity; σe approaching zero when the separator is dry or wet with electrolyte; low or no volume (higher Wh/l); low or no weight (high Wh/kg); anti-compression (z-performance, wet); super strong (XYZ direction strength for processing when dry and wet); all temperature stability (mechanical, electrical, and electro-chemical when wet and dry); and ability to apply infinite force when measuring ISR.
Disclosed or provided are non-shutdown high melt temperature or ultra high melt temperature microporous battery separators, high melt temperature separators, battery separators, membranes, composites, and the like that preferably prevent contact between the anode and cathode when the battery is maintained at elevated temperatures for a period of time and preferably continue to provide a substantial level of battery function (ionic transfer, discharge) when the battery is maintained at elevated temperatures for a period of time, methods of making, testing and/or using such separators, membranes, composites, and the like, and/or batteries, high temperature batteries, and/or Lithium-ion rechargeable batteries including one or more such separators, membranes, composites, and the like.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat dissipation layer affixed to a surface of the microporous membrane, wherein the heat dissipation layer is configured to dissipate heat and reduce thermal propagation within a battery cell. The heat dissipation layer can comprise at least one of a polymer, a phase change material, and/or a high thermal conduction material configured to dissipate heat in or above a normal battery cell operating range.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 10/654 - Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
Improved battery separators are disclosed herein for use in various lead acid batteries, and in particular lead acid battery strings. The improved separators, batteries, battery strings, methods, and vehicles disclosed herein provide substantially increased battery life, substantially reduced battery fail rate, and substantially higher voltage uniformity among the various batteries in a battery string. The improved battery strings may be advantageously employed in high depth of discharge applications such as electric bicycles, golf carts (or golf cars), uninterrupted power supply (UPS) backup power battery strings, and the like.
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
33.
NEW OR IMPROVED PIN DESIGNS FOR HIGH COF POLYMER MEMBRANES OR SEPARATOR MEMBRANES, MEMBRANE OR SEPARATOR TENSION MEASURING, AND RELATED METHODS
In accordance with at least selected embodiments, aspects or objects, there are disclosed or provided new or improved pins adapted for use with high or higher COF polymer membranes or separator membranes (also known as sheets or films), polymer tension measuring, and/or related methods of use, of cell or battery manufacture, and/or the like. In certain embodiments, the new or improved pins are especially well suited for use with dry process polyolefin microporous membranes, separator membranes, or separators. In certain selected embodiments, the new or improved pins are especially well suited for use with dry process polyolefin microporous membranes, separator membranes, or separators in Z-fold or S-fold machines for the production of lithium ion pouch cells, lithium polymer pouch cells, lithium prismatic cells, and/or the like.
The present disclosure or invention is directed to novel or improved separators for a variety of lead acid batteries and/or systems. In addition, exemplary embodiments disclosed herein are directed to novel or improved battery separators, separator profiles, separator and electrode assemblies incorporating the same, battery cells incorporating the same, batteries incorporating the same, systems incorporating the same, and/or methods of manufacturing and/or of using the same, and/or the like, and/or combinations thereof. For example, disclosed herein are exemplary embodiments of improved electrode plate and separator assemblies (400) for lead acid batteries, improved lead acid cells or batteries incorporating the improved assemblies, systems or vehicles incorporating the improved assemblies (400) and/or batteries (100), and methods related thereto. The electrode plate (200, 201) may have a grid (202) of a stamped, cast, or expanded metal manufacturing process. The grid (202) may have a non-uniform application of active material (203). The separators (300) provide a support structure for resisting or mitigating any plate warping or plate deflection.
H01M 50/469 - Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In one aspect, microporous membranes are described herein demonstrating composite architectures and properties suitable for electronic and/or optical applications. In some embodiments, a composite membrane described herein includes a microporous polymeric matrix or substrate having an interconnected pore structure and an index of refraction and an electrically conductive coating deposited over one or more surfaces of the microporous polymeric matrix. In other embodiments, the pores are filled and the membranes are substantially transparent.
Disclosed herein are exemplary embodiments of improved separators for lead acid batteries, improved lead acid batteries incorporating the improved separators, and vehicles, devices, or systems incorporating the same. A lead acid battery separator is provided with a porous membrane with a plurality of ribs extending from a surface thereon. The plurality of ribs preferably includes both positive ribs and negative ribs having similar heights. The ribs are provided with a plurality of discontinuous peaks arranged such as to provide resilient support for the porous membrane in order to resist forces exerted by active material swelling and thus mitigate the effects of acid starvation associated with such swelling, and increasing the acid availability at the electrodes. A lead acid battery is further provided that incorporates the provided separator. Such a lead acid battery may be a flooded lead acid battery, an enhanced flooded lead acid battery, a gel battery, an AGM battery, and may be provided as operating in a partial state of charge. Systems incorporating such a lead acid battery are also provided, such as a vehicle or any other energy storage system, such as solar or wind energy collection. Other exemplary embodiments are provided such as to have any one or more of the following: increased or improved acid availability, reduced or mitigated acid starvation, and other improvements.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
37.
IMPROVED MEMBRANES, CALENDERED MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AND RELATED METHODS
Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/08 - Flat, e.g. panels flexible, e.g. films
B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
B29C 55/00 - Shaping by stretching, e.g. drawing through a dieApparatus therefor
B29C 55/02 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets
B29C 55/14 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial successively
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
B32B 37/16 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
B32B 38/00 - Ancillary operations in connection with laminating processes
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A dry-process microporous membrane for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns, preferably between about 0.010 microns to about 0.020 microns, and a thickness less than 14 microns. The membrane may be used in an ultra-filtration or nano-filtration process. The membrane exhibits high dimensional stability.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
Disclosed is a membrane with one or more dry-process porous layers that comprise (1) a polyolefin and (2) a product formed by reacting two components, which may be a compound with one or more carboxy groups and a compound with one or more epoxy groups. The product may be a reaction network, a three-dimensional reaction network, or a cross-linked network The resulting membrane has improved strength, reduced splittiness, or both improved strength and reduced splittiness. The membrane may be used in a battery, capacitor, HVAC, filtering device, or textile. Methods for making the membrane are also disclosed.
In at least one embodiment, a separator is provided with a fibrous mat for retaining the active material on an electrode of a lead-acid battery. New or improved mats, separators, batteries, methods, and/or systems are also disclosed, shown, claimed, and/or provided. For example, in at least one possibly preferred embodiment, a composite separator is provided with a fibrous mat for retaining the active material on an electrode of a lead-acid battery. In at least one possibly particularly preferred embodiment, a PE membrane separator is provided with at least one fibrous mat for retaining the active material on an electrode of a lead-acid battery. In accordance with at least certain embodiments, aspects and/or objects, the present invention, application, or disclosure may provide solutions, new products, improved products, new methods, and/or improved methods, and/or may address issues, needs, and/or problems of PAM shedding, NAM shedding, electrode distortion, active material shedding, active material loss, and/or physical separation, electrode effectiveness, battery performance, battery life, and/or cycle life, and/or may provide new battery separators, new battery technology, and/or new battery methods and/or systems that address the challenges arising from current lead acid batteries or battery systems, especially new battery separators, new battery technology, and/or new battery methods and/or systems adapted to prevent or impede the shedding of active material from the electrodes, preferably or particularly in enhanced flooded lead acid batteries, PSoC batteries, ISS batteries, ESS batteries, and/or the like.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat absorption layer affixed to a surface of the microporous membrane, wherein the heat absorption layer is configured to absorb heat and reduce thermal propagation within a battery cell. The heat absorption layer can comprise at least one of a phase change material or a high heat capacity material configured to absorb heat in or above a normal battery cell operating range.
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery.
In one aspect, a method of measuring the internal short resistance of a battery separator comprising one or more layers of a polyolefin is provided. A method comprises applying a force via a force component comprising a ball to a test stack, the test stack comprising an anode, a separator, and a cathode, deforming the test stack until an electrical short occurs, and determining an ISR value for the separator, the value corresponding to an overall ISR, or at least in one of the MD, TD, or Z-direction.
In one aspect, a battery separator comprises a microporous membrane having one or more layers of a polyolefin, wherein the microporous membrane has an electrical resistance (ER) of less than 10 Ω/mm at a compression pressure of 1,000 lbs. In some embodiments, the microporous membrane has an electrical resistance of less than 25 Ω/mm at a compression pressure of 5,000 lbs, an electrical resistance of less than 37 Ω/mm at a compression pressure of 7,500 lbs, and/or an electrical resistance of less than 47 Ω/mm at a compression pressure of 10,000 lbs. In some embodiments, the microporous membrane exhibits a compression from about 5% to about 10% under a stress of 8 N/mm2, and wherein the microporous membrane exhibits an elastic recovery from 50% to 100%.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A battery separator is provided comprising a low temperature shutdown layer, and the battery separator has a shutdown temperature of less than about 130°C, less than about 120°C, less than about 110°C, less than about 100°C, less than about 90°C, or less than about 80°C. The low temperature shutdown layer can contain a first and second polymeric component. For example, it may contain an ultrahigh molecular weight polyethylene and a low molecular weight polyolefin and/or wax.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
Equipment or methods are provided for addressing the failure mode that thermal runaway cell emits flammable smoke, igniting the flammable smoke causes an EDV fire and providing new or proprietary solutions, components, materials or chemicals, to achieve the following: non-flammable smoke can be generated during cell thermal runaway resulting in smoke only, cell reaction strength is reduced by dropping Tmax for the reaction, and/or thermal-propagation can be prevented, whereby many EDV and ESS fires may be prevented and safe EDVs and ESSs may be possible. Novel or improved batteries, anodes, separators, solutions on li ion battery fires, and/or fire suppression systems, chemicals, etc.; in addition, exemplary embodiments disclosed herein are directed to novel or improved lithium ion batteries, cells, electrodes, separators, and/or similar batteries incorporating the same, and/or related methods of manufacturing and/or of using the same, and/or combinations thereof; improvements or solutions as shown and/or described herein.
Equipment or methods are provided for addressing the failure mode that thermal runaway cell emits flammable smoke, igniting the flammable smoke causes an EDV fire and providing new or proprietary solutions, components, materials or chemicals, to achieve the following: non-flammable smoke can be generated during cell thermal runaway resulting in smoke only, cell reaction strength is reduced by dropping Tmax for the reaction, and/or thermal-propagation can be prevented, whereby many EDV and ESS fires may be prevented and safe EDVs and ESSs may be possible. Novel or improved batteries, anodes, separators, solutions on li ion battery fires, and/or fire suppression systems, chemicals, etc.; in addition, exemplary embodiments disclosed herein are directed to novel or improved lithium ion batteries, cells, electrodes, separators, and/or similar batteries incorporating the same, and/or related methods of manufacturing and/or of using the same, and/or combinations thereof; improvements or solutions as shown and/or described herein.
Equipment or methods are provided for addressing the failure mode that
Thermal runaway cell emits flammable smoke
Igniting the flammable smoke causes an EDV fire
and providing new or proprietary solutions, components, materials or chemicals, to achieve the following: Non-flammable smoke can be generated during cell thermal runaway resulting in smoke only. Cell reaction strength is reduced by dropping Tmax for the reaction, and/or thermal-propagation can be prevented, whereby many EDV and ESS fires may be prevented and safe EDVs and ESSs may be possible.
New and/or improved coatings, layers or treatments for porous substrates, including battery separators or separator membranes, and/or coated or treated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components, and/or to new or improved coated or treated porous substrates, including battery separators, where the coating comprises at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components are disclosed. Further, new or improved coatings for porous substrates, including battery separators, and new and/or improved coated porous substrates, including battery separators, new or improved coatings for porous substrates, including battery separators, which comprise at least (i) a matrix material or a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, and a thickener, and new and/or improved coated porous substrates, including battery separators, where the coating comprises at least (i) a matrix material or a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, a thickener, a friction-reducing agent, and a high-temperature shutdown agent are disclosed.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Described herein is a multilayer microporous film or membrane that may exhibit improved properties, including improved dielectric break down and strength, compared to prior monolayer or tri-layer microporous membranes of the same thickness. The preferred multilayer microporous membrane comprises microlayers and one or more lamination interfaces or barriers. Also disclosed is a battery separator or battery comprising one or more of the multilayer microporous films or membranes. The inventive battery and battery separator is preferably safer and more robust than batteries and battery separators using prior monolayer and tri-layer microporous membranes. Also, described herein is a method for making the multilayer microporous separators, membranes or films described herein.
B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
B29C 48/08 - Flat, e.g. panels flexible, e.g. films
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
2. A composite for forming an improved semi-solid state electrolyte. The composite has a layer formed including lithium metaphosphate (LiPO3). The layer may include a mixture of LiPO3 and PEO. The composite may be wet with liquid electrolyte to form the semi-solid state electrolyte. When used in a semi-solid state battery, the semi-solid state electrolyte provides beneficial results, including improved cycle life and less lithium dendrite growth. Another composite for forming an improved semi-solid state electrolyte has a layer formed including LiTaO3 and LiNbO3. Yet another composite has a single layer formed to include a mixture of a polyethylene oxide and a lithium-containing salt, including a lithium salt including niobium, tantalum, or mixtures thereof. Such composites may be wet with liquid electrolyte to form the semi-solid state electrolyte. When used in a semi-solid state battery, the semi-solid state electrolyte provides beneficial results, including improved cycle life and less lithium dendrite growth.
A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A separator for a lead acid battery is a porous membrane having a positive electrode face and a negative electrode face. A plurality of longitudinally extending ribs, a plurality of protrusions or a nonwoven material may be disposed upon the positive electrode face. A plurality of transversely extending ribs are disposed upon the negative electrode face. The transverse ribs disposed upon the negative electrode face are preferably juxtaposed to a negative electrode of the lead acid battery, when the separator is placed within that battery.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed herein are improved separators for lead acid batteries, improved batteries, and related methods. The separators may include a porous membrane, rubber and/or latex, and at least one performance enhancing additive or surfactant.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
54.
IMPROVED ADHESIVE COATING, COATED MEMBRANES, COATED BATTERY SEPARATORS, AND RELATED METHODS
A heat-resistant sticky coating for use on a membrane or lithium ion battery separator is disclosed. The coating has at least improved dry adhesion to an electrode for a lithium ion battery. The coating includes heat-resistant particles with a water-soluble sticky polymer on their surface. The water-soluble sticky polymer may be a polyethylene oxide (PEO). The coating may also include particles of water-insoluble sticky polymer. The water-insoluble sticky polymer may be a polyvinylidene fluoride (PVDF) homopolymer, copolymer, or terpolymer. The water-insoluble sticky polymer may be in the same layer of the coating as the heat-resistant particles with the water-soluble sticky polymer on their surface, or it may be in a different layer. A method for forming the heat-resistant sticky coating is also disclosed.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
55.
ADDITIVES FOR IMPROVED BATTERY PERFORMANCE, IMPROVED ADDITIVE-CONTAINING MEMBRANES, IMPROVED BATTERY SEPARATORS, IMPROVED BATTERIES, AND RELATED METHODS
Described herein, are battery separators, comprising the following: a microporous polymeric film; and an optional coating layer on at least one side of the microporous polymeric film, wherein at least one of the microporous polymeric film and the optional coating comprises an additive. The additive is selected from the group consisting of a lubricating agent, a plasticizing agent, a nucleating agent, a shrinkage reducing agent, a surfactant, an SEI improving agent, a cathode protection agent, a flame retardant additive, LiPF6 salt stabilizer, an overcharge protector, an aluminum corrosion inhibitor, a lithium deposition agent or improver, or a solvation enhancer, an aluminum corrosion inhibitor, a wetting agent, and a viscosity improver. Also, described herein are batteries, including lithium-ion batteries, comprising one or more of the described separators. Methods for making the battery separators are also described.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
A dry-process microporous membrane for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns, preferably between about 0.010 microns to about 0.020 microns, and a thickness less than 14 microns. The membrane may be used in an ultra-filtration or nano-filtration process. The membrane exhibits high dimensional stability.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
A compressible battery separator is provided with capabilities to accommodate varying spacing between electrodes in a lead acid battery. Battery separators, cells, batteries, systems, and methods of manufacture and methods of use are disclosed herein.
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 10/14 - Assembling a group of electrodes or separators
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
New, improved or optimized battery separators, components, batteries, industrial batteries, inverter batteries, batteries for heavy or light industrial applications, forklift batteries, float charged batteries, inverters, accumulators, systems, methods, profiles, additives, compositions, composites, mixes, coatings, and/or related methods of water retention, water loss prevention, improved charge acceptance, production, use, and/or combinations thereof are provided or disclosed. More particularly, the present invention is directed to one or more improved battery separators having various improvements that may result in decreased water loss for a battery in which such a separator is incorporated, enhanced charge acceptance, or combinations thereof. Additionally, the present invention relates to one or more improved battery separators having various improvements with regard to shape, and/or physical profile, and/or chemical(s), additives, mixes, coatings, and/or the like used to make such battery separators (such as oil(s), and/or chemical additive(s) or agents used to coat, finish or improve such battery separators (such as surfactant(s))). The improved battery separators of the instant invention are particularly useful in or with industrial batteries, such as inverter batteries, batteries for heavy or light duty industrial applications, and so forth.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/469 - Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
59.
COMPOSITE SEMI-SOLID ELECTROLYTE AND BATTERIES COMPRISING THE SAME
A composite for forming an improved semi-solid state electrolyte. The composite has a single layer formed to include a mixture of a polyethylene oxide and a lithium-containing salt, including a lithium salt including niobium, tantalum, or mixtures thereof. The composite may be wet with liquid electrolyte to form the semi-solid state electrolyte. When used in a semi- solid state battery, the semi-solid state electrolyte provides beneficial results, including improved cycle life and less lithium dendrite growth.
H01M 10/0564 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
A monolayer, bilayer, trilayer, or multilayer porous membrane having at least one layer that contains a thermoplastic resin and a polymer that is incompatible with the thermoplastic resin. One structure is a multilayer porous membrane where at least one internal layer of the multilayer porous membrane contains the thermoplastic resin and the polymer that is incompatible with the thermoplastic resin. Higher amounts of incompatible polymer may be used in an internal layer. This structure has improved properties, including improved puncture strength. Another structure includes at least one layer containing polyethylene and a polymer that is incompatible with polyethylene. The at least one layer containing polyethylene and a polymer that is incompatible with polyethylene may be an internal layer or an external layer. An internal layer may include more incompatible polymer than an external layer. The porous membranes may be used as battery separators. For example, they may be used as battery separators in secondary batteries such as lithium ion secondary batteries.
New and/or improved coatings for porous substrates, including battery separators or separator membranes, and/or coated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components, and/or to new or improved coated porous substrates, including battery separators, where the coating comprises at least a polymeric binder and heat-resistant particles with or without additional additives, materials or components are disclosed. Further, new or improved coatings for porous substrates, including battery separators, and new and/or improved coated porous substrates, including battery separators, new or improved coatings for porous substrates, including battery separators, which comprise at least (i) a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, and a thickener, and new and/or improved coated porous substrates, including battery separators, where the coating comprises at least (i) a polymeric binder, (ii) heat-resistant particles, and (iii) at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, a thickener, a friction-reducing agent, a high-temperature shutdown agent are disclosed.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In one aspect, a wide microporous film comprises one or more layers comprising a polyolefin, wherein the microporous film has a width of at least 50 inches and comprises one or more non-porous regions. In some embodiments, the microporous film is at least 55 inches or at least 60 inches. Moreover, in some embodiments, the non-porous region is located along a creased region of the microporous film.
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29K 105/04 - Condition, form or state of moulded material cellular or porous
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
A dry-process porous membrane having an oxygen induction time (OIT) greater than 3 minutes, greater than 5 minutes, greater than 10 minutes, greater than 15 minutes, greater than 20 minutes, or greater than 25 minutes where OIT is measured at 215° C. and 100% O2. The dry-process porous membrane may be a microporous polyolefin membrane.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
B01D 71/76 - Macromolecular material not specifically provided for in a single one of groups
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
The present disclosure provides a separator for an electric storage device, which separator is capable of reducing clogging and has an excellent thermal stability, and an electric storage device using the same. The above-described separator for an electric storage device includes a microporous layer (A) and a microporous layer (B) that contain 70 wt % or more of polypropylene, and the area average major pore diameter in an ND-MD cross section of the microporous layer (B) is not more than 0.95 times the area average major pore diameter in an ND-MD cross section of the microporous layer (A). Alternatively, the separator for an electric storage device contains 70% by weight or more of a polyolefin, and the area average major pore diameter of a first porous surface (X) of the separator is not less than 1.05 times and not more than 10 times the area average major pore diameter of a second porous surface (Y) on the side opposite thereto.
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
72.
VAPOR PRESSURE BARRIERS FOR LEAD ACID BATTERIES FOR IMPROVED WATER LOSS PERFORMANCE, SEPARATORS, SYSTEMS, AND METHODS OF MANUFACTURE AND USE THEREOF
New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity, and/or discharge rates, and/or methods of improving batteries, systems including such batteries, vehicles including such batteries and/or systems, and/or the like; biaxially oriented porous membranes, composites including biaxially oriented porous membranes, biaxially oriented microporous membranes, biaxially oriented macroporous membranes, battery separators with improved charge capacities and the related methods and methods of manufacture, methods of use, and the like; flat sheet membranes, liquid retention media; dry process separators; biaxially stretched separators; dry process biaxially stretched separators having a thickness range between about 5 μm and 50 μm, preferably between about 10 μm and 25 μm, having improved strength, high porosity, and unexpectedly and/or surprisingly high charge capacity, such as, for example, high 10C rate charge capacity; separators or membranes with high charge capacity and high porosity, excellent charge rate and/or charge capacity performance in a rechargeable and/or secondary lithium battery, such as a lithium ion battery, for high power and/or high energy applications, cells, devices, systems, and/or vehicles, and/or the like; single or multiple ply or layer separators, monolayer separators, trilayer separators, composite separators, laminated separators, co-extruded separators, coated separators, 1 C or higher separators, at least 1 C separators, batteries, cells, systems, devices, vehicles, and/or the like; improved microporous battery separators for secondary lithium batteries, improved microporous battery separators with enhanced or high charge (C) rates, discharge (C) rates, and/or enhanced or high charge capacities in or for secondary lithium batteries, and/or related methods of manufacture, use, and/or the like, and/or combinations thereof are disclosed or provided.
A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing active material shedding, reducing grid and spine corrosion, reducing failure rate reducing acid stratification and/or improving uniformity in at least lead acid batteries, in particular batteries for electric rickshaws. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved membrane profiles, improved coatings, improved configurations, and/or the like.
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In accordance with at least certain embodiments of the present invention, a novel concept of utilizing PIMS minerals as a filler component within a microporous lead-acid battery separator is provided. In accordance with more particular embodiments or examples, the PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.
This application is directed to dry-process porous membranes comprising polyethylene and to methods for forming such membranes. Some of the dry-process porous membranes may comprise polyethylene that has been irradiated with electron-beam irradiation. The dry-process porous membranes disclosed herein may be used in the following: lithium ion batteries, including those utilizing nickel manganese cobalt oxide (NMC), lithium metal, or lithium iron phosphate (LFP) chemistries, and/or large format lithium ion batteries, textiles, garments, PPE, filters, medical products, house products, fragrance devices, and/or disposable lighters. In at least one embodiment, a multilayer porous membrane, comprises a dry-process polyethylene layer that has been treated with electron-beam radiation; and, an additional layer that has not been treated with electron-beam irradiation; and, optionally: wherein a dosage of the electron-beam radiation is from 20 kGy to 250 kGy, 50 kGy to 250 kGy, from 60 kGy to 200 kGy, from 70 kGy to 150 kGy, or from 80 kGy to 140 kGy; wherein the additional layer is laminated to the dry-process polyethylene layer that has been treated with electron-beam radiation; or wherein a blocking layer is laminated with a dry-process polyethylene layer and the additional layer to form a structure with the blocking layer between the dry-process polyethylene layer and the additional layer, and wherein the dry-process polyethylene layer is treated with electron beam irradiation to form the dry-process polyethylene layer that has been treated with electron-beam radiation. Also described is a textile, garment, PPE, filter, medical product, house product, fragrance device, or disposable lighter comprising the inventive membrane.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
A lead acid battery separator having a first array of ribs extending from a first side of a backweb, and a second array of ribs extending from a second side of the backweb. Both the first array of ribs and the second array of ribs are cross-machine direction (CMD) ribs. In a flooded lead acid (FLA) or valve regulated lead acid (VRLA) battery, the CMD ribs extend in a direction that is parallel to a top and bottom of the battery. The separator helps reduce acid stratification issues, allowing for FLA batteries to be used as auxiliary batteries or enhanced flooded lead acid batteries (EFB), and further improving VRLA performance when used as auxiliary batteries.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
In one aspect, a device for absorbing a liquid is provided, the device comprising one or more layers of a polyolefin. The device may be configured as a microporous membrane comprising one or more layers of a polyolefin and can further be configured to absorb an oil while also allowing water to pass through or to absorb oil while repelling or not allowing water to pass through. The device may be configured as at least one of a sheet, a strip, a roll, pleated, embossed, ribbed, and patterned. The device may further be configured as a floor covering or mat.
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
Battery separators and methods are disclosed. The battery separator may be used in a lithium battery. The separator may include a microporous membrane laminated to a coated nonwoven. The coating may contain a polymer and optionally, a filler or particles. The methods may include the steps of: unwinding the microporous membrane and the nonwoven, laminating the nonwoven and microporous membrane, and coating the nonwoven before or after lamination.
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
01 - Chemical and biological materials for industrial, scientific and agricultural use
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
Goods & Services
(1) Extruded microporous polymer membranes for building material for use as weatherproofing; extruded ribbed microporous polymer membranes for building material for use as weatherproofing; extruded vapor permeable membranes for building material for use as weatherproofing; extruded building envelope membranes for use as weatherproofing; extruded very high permeability, ultrahigh water holdout for use as weatherproofing; extruded durable membranes for building material for use as weatherproofing; extruded house wrap for use as weatherproofing; extruded moisture barrier flooring underlayment; extruded building envelope for use as weatherproofing; extruded vapor barrier for building material for use as weatherproofing; extruded moisture barrier for building material for use as weatherproofing; extruded air barrier for building material for use as weatherproofing; extruded weatherproofing barrier for building material; extruded barrier membrane sold in rolls and used in the construction industry as weatherproofing to protect walls and roofs of structures from wind and moisture; microporous polymer membranes for building material for use as weatherproofing; ribbed microporous polymer membranes for building material for use as weatherproofing; vapor permeable membranes for building material for use as weatherproofing; building envelope membranes for use as weatherproofing; very high permeability, ultrahigh water holdout for use as weatherproofing; extruded durable membranes for building material for use as weatherproofing; house wrap for use as weatherproofing; moisture barrier flooring underlayment; building envelope for use as weatherproofing; vapor barrier for building material for use as weatherproofing; moisture barrier for building material for use as weatherproofing; air barrier for building material for use as weatherproofing; weatherproofing barrier for building material; barrier membrane sold in rolls and used in the construction industry as weatherproofing to protect walls and roofs of structures from wind and moisture; ribbed and non-ribbed vapor permeable membranes for building materials and underlayment for use as water blocking humidity control material including for interior and exterior walls, floors, roofs, flashing.
(2) Microporous polymer membranes for use as structural building material; ribbed microporous polymer membranes for use as structural building material; vapor permeable membranes for use as structural building material; building envelope membranes use as structural building material; very high permeability, ultrahigh water holdout durable membranes for use as structural building material; roofing underlayment; house wrap being a structural building material; flooring underlayment; water resistant and breathable non¬metal roofing; building envelope being a structural building material; barrier membrane sold in rolls and used in the construction industry as a structural building material to protect walls and roofs of structures from wind and moisture; extruded microporous polymer membranes for use as structural building material; extruded ribbed microporous polymer membranes for use as structural building material; extruded vapor permeable membranes for use as structural building material; extruded building envelope membranes use as structural building material; extruded very high permeability, ultrahigh water holdout durable membranes for use as structural building material; extruded roofing underlayment; extruded house wrap being a structural building material; extruded flooring underlayment; extruded water resistant and breathable non-metal roofing; extruded building envelope being a structural building material; extruded barrier membrane sold in rolls and used in the construction industry as a structural building material to protect walls and roofs of structures from wind and moisture
87.
LEAD-ACID BATTERY SEPARATORS WITH IMPROVED PERFORMANCE AND BATTERIES AND VEHICLES WITH THE SAME AND RELATED METHODS
Improved battery separators are disclosed herein for use in flooded lead-acid batteries, and in particular enhanced flooded lead-acid batteries. The improved separators disclosed herein provide for enhanced electrolyte mixing and substantially reduced acid stratification. The improved flooded lead-acid batteries may be advantageously employed in applications in which the battery remains in a partial state of charge, for instance in start/stop vehicle systems. Also, improved lead-acid batteries, such as flooded lead-acid batteries, improved systems that include a lead-acid battery and a battery separator, improved battery separators, improved vehicles including such systems, and/or methods of manufacture and/or use may be provided.
A functionalized microporous, mesoporous, or nanoporous membrane, material, textile, composite, laminate, or the like, and/or a method of making or using such functionalized membranes. The functionalized porous membrane may be a functionalized microporous, mesoporous, or nanoporous membrane that has a functional molecule attached, such as a functional polymer, to the surface and/or internal fibrillar structure of the membrane.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
An improved multilayer laminated microporous battery separator for a lithium ion secondary battery, and/or a method of making or using this separator is provided. The preferred inventive dry process separator is a tri-layer laminated Polypropylene/Polyethylene/Polypropylene microporous membrane with a thickness range of 12 μm to 30 μm having improved puncture strength and low electrical resistance for improved cycling and charge performance in a lithium ion battery. In addition, the preferred inventive separator's or membrane's low Electrical Resistance and high porosity provides superior charge rate performance in a lithium battery for high power applications.
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
The present invention relates in at least selected embodiments to novel or improved microporous battery separators for lithium rechargeable batteries and/or related methods of making and/or using such separators. A particular inventive dry process battery separator or membrane separator exhibits a thickness that is less than about 14 μm and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a novel test method known as the Composite Splittiness Index (CSI).
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Described herein is a coated battery separator where the coating is provided on one or both sides of the battery separator. The coating comprises polytetrafluoroethylene (PTFE) particles and the coating is an outermost coating layer. In some cases, the coating may also comprise ceramic particles.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Disclosed herein are improved separators for lead acid batteries. The separators may include a porous membrane, a rubber, and at least one performance enhancing additive, positive and/or negative ribs, and/or lowered acid leachable total organic carbon.
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
Textile fabrics for use in making clothing and household furnishings; Textile fabrics for the manufacture of clothing; Textile substitute materials made from synthetic materials; Textile fabrics for use in the manufacture of garments, bags, jackets, gloves, and apparel Clothing, namely, shirts, shorts, pants, and knit face masks being headwear, ski masks, masks in the nature of balaclavas; headwear; footwear
96.
Battery separators with improved conductance, improved batteries, systems, and related methods
In accordance with at least selected embodiments, the present disclosure or invention is directed to improved battery separators, high conductance separators, improved lead-acid batteries, such as flooded lead-acid batteries, high conductance batteries, improved systems, and/or, improved vehicles including such batteries, and/or methods of manufacture or use of such separators or batteries, and/or combinations thereof. In accordance with at least certain embodiments, the present disclosure or invention is directed to improved lead acid batteries incorporating the improved separators and which exhibit increased conductance. Particular, non-limiting examples may include lead acid battery separators having structure or features designed to improve conductance, lower ER, lower water loss, and the like.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Textile fabrics for use in making clothing and household furnishings; Textile fabrics for the manufacture of clothing; Textile substitute materials made from synthetic materials; Textile fabrics for use in the manufacture of garments, bags, jackets, gloves, and apparel
98.
Microlayer membranes, improved battery separators, and methods of manufacture and use
In accordance with at least selected embodiments, a battery separator or separator membrane comprises one or more co-extruded multi-microlayer membranes optionally laminated or adhered to another polymer membrane. The separators described herein may provide improved strength, for example, improved puncture strength, particularly at a certain thickness, and may exhibit improved shutdown and/or a reduced propensity to split.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
2. The inventive battery separator membrane may provide a means to achieve an improved level of battery performance in a rechargeable or secondary lithium battery based on a possibly synergistic combination of low Electrical resistance, low Gurley, low tortuosity, and/or a unique trapezoid shaped pore. Certain multilayer embodiments (by way of example only, a trilayer membrane made of two polypropylene layers with a polyethylene layer in between), the inventive microporous membrane or battery separator may have excellent onset and rate of thermal shutdown performance.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
The present invention relates to surface modifying agents for polymeric and/or textile materials, methods of making and/or using a surface modifying agent to modify and functionalize polymeric and/or textile materials, and/or methods of using surface modified or functionalized polymeric and textile materials, and/or products using or incorporating surface modified or functionalized polymeric and textile materials. For example, the surface modifying agent in precursor form can be styrene sulfonyl azide monomer, polymer or copolymer capable of undergoing a chemical reaction in the presence of heat or light to form one or more styrene sulfonated nitrene monomers, polymers or copolymers, which are capable of chemically reacting with the surface of a polymeric or textile material to endow a specific or desired chemical surface functionality to the surface of a polymeric or textile material. Furthermore, the present invention is possibly preferably directed to a surface modifying agent which comprises a styrene sulfonated nitrene monomer, polymer or polymer containing one or more nitrene functional groups, which are capable of chemically reacting via an insertion reaction into one or more carbon-hydrogen bonds on the surface of a polymeric or textile material in order to chemically attach a specific or desired chemical functionality to the surface of a polymeric or textile material.
