Abstract

A powder for use in a negative electrode of a battery, said powder comprising particles, wherein the particles comprise a carbonaceous matrix material and silicon-based domains dispersed in the carbonaceous matrix material, wherein the particles further comprise pores wherein at least 1000 cross-sections of pores comprised in a cross-section of the powder satisfy optimized conditions of size and size distribution, allowing the battery containing such a powder to achieve a superior cycle life and a production method of such a powder.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys

Abstract

The present invention relates to Li-rich positive electrode active material comprising a layered structure and a disordered rock-salt structure exhibiting high capacity and excellent cycling stability.

IPC Classes  ?

• C01G 53/506 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.5, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.5 with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.8, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.8

Abstract

Positive electrode active material, wherein the metal has a composition M, which consists of Ni in a content x, Mn in a content y, Co in a content z, and A in a content a. A is at least one chemical element other than Li, Ni, Mn, Co, and O. x, y, z, and a are expressed as molar contents and x+y+z+a=100%. Further, x≥70.0%, 0≤y≤30.0%, 0≤z≤30.0%, 0≤a≤5.0%, and an X-Ray diffractogram from Cu K-α X-ray radiation source of the positive electrode active material has a (003) peak at 2θ=17.0° to 20.0° and (104) peak at 2θ=43.0° to 46.0°. The ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.880.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/44 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese

Abstract

The present invention relates to a positive electrode composite material comprising particles of a positive electrode material comprising Li, M', and O, wherein M' comprises Ni, Mn, Co, N', D, wherein N' is selected from the group consisting of B, Zr, Nb, Ti, Sr, W and combinations thereof, and wherein D is at least one element other than Li, Ni, Mn, Co, N' and O; further comprising a sulfide solid electrolyte coating.

IPC Classes  ?

• C01D 15/00 - Lithium compounds
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/0561 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
• H01M 10/0562 - Solid materials

Abstract

The present invention relates to a method for preparing a platinum metal solution. This solution can be used to prepare a platinum metal electrolyte or platinum alloy metal electrolyte. The invention also relates to the electrolytes prepared in this way and to the use thereof for the galvanic deposition of corresponding coatings.

IPC Classes  ?

• C25D 3/50 - ElectroplatingBaths therefor from solutions of platinum group metals

Abstract

A method for preparing a positive electrode active material powder for lithium-ion rechargeable batteries, comprising: Step 1) mixing a Li source, a transition metal precursor, and a Zr-containing source to obtain a mixture; Step 2) heating the mixture at a temperature between 650 °C and 1100 °C to obtain a heated material; and Step 3) milling the heated material, wherein the transition metal precursor comprises Ni, optionally Co, and optionally Mn, and wherein the transition metal precursor has a D50 value of less than 5.0 μm, D50 being defined as a particle size at 50% of cumulative volume% distribution when measured by laser scattering method.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel

Abstract

A powder suitable for use in a negative electrode of a battery, wherein the powder comprises particles, wherein the particles comprise a matrix material and silicon-based sub-particles embedded in the matrix material, wherein the matrix material comprises a carbonaceous material, wherein the powder further comprises sulfur, the sulfur content by weight in said powder being at least 0.1% of the content of carbonaceous material by weight in said powder and at most 1% of the content of carbonaceous material by weight in said powder.

IPC Classes  ?

• 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 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

Abstract

The present invention provides a method for processing a metal-containing feed comprising at least one Ni compound and/or at least one Co compound, said feed further comprising one or more impurities, said method comprising the steps of: i. reacting in an aqueous medium at a pH between 1.5 and 10 said metal-containing feed with a sulphidising agent, thereby obtaining a slurry comprising a Ni- and/or Co-containing solid phase and an aqueous phase comprising one or more water-soluble salts of Mn, Mg, Al, Fe, Ca, B, Na and/or U; ii. separating said solid phase and said aqueous phase.

IPC Classes  ?

• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means

Abstract

The present disclosure is related to a positive electrode composite material comprising a positive electrode active material and CNTs. The positive electrode composite material comprises Li, M', and O, wherein M' comprises: - Ni in a content x, wherein 50 at% ≤ x ≤ 95 at%, relative to M'; - Mn in a content y, wherein 0 at% ≤ y ≤ 30 at%, relative to M'; - Co in a content z, wherein 0 at% ≤ z ≤ 20 at%, relative to M'; - Al in a content a, wherein 0 at% < a ≤ 5 at%, relative to M', - D in a content b, wherein 0 at% ≤ b ≤ 5 at%, relative to M', wherein D is at least one element selected from the group consisting of B, Ba, Ca, Ce, Cr, Fe, Mg, Mo, Na, Nb, Si, Sr, Ti, V, W, Y, Zn, and Zr; - S in a content of c, wherein 0.5 at% ≤ c ≤ 5 at%, relative to M', and - wherein x+y+z+a+b+c is 100 at%, wherein x, y, z, a, b, and c are measured by ICP.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present disclosure concerns sodium-phosphate niobium bronzoïds and bronzes having the following formula: Na2Nb4P2O16 and NaNb3P2O13, and their manufacture, comprising the following steps: Annealing a mixture of precursors M1; Grinding the annealed mixture M1; Pelletizing the ground mixture M1 to obtain a pellet P1; Annealing the pellet P1; wherein M1 comprises a niobium precursor, a phosphate precursor, and a sodium precursor.

IPC Classes  ?

• C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
• C01G 33/00 - Compounds of niobium
• 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

The present disclosure concerns lithium-phosphate niobium bronzoTds and bronzes having either of the following formula: Li2Nb4P2O16 or LiNb3P2O13 and the process for their manufacture, comprising the following steps: Providing a sodium-phosphate niobium bronzoid or bronze; mixing and grinding the sodium-phosphate niobium bronzoid or bronze with a Li-comprising precursor to obtain a mixture M2; pelletizing the mixture M2 to obtain a pellet P2; annealing the pellet P2; grinding the pellet to obtain a powder W2; washing and drying the powder W2.

IPC Classes  ?

• C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
• C01G 33/00 - Compounds of niobium
• 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

The present disclosure relates to compositions for industrial furnace trays, and to methods for manufacturing the compositions thereof. The present disclosure also relates to a tray comprising a composition according to this disclosure. The tray has the characteristics of high thermal and chemical stability, and improved lifetime.

IPC Classes  ?

• C04B 35/101 - Refractories from grain sized mixtures
• C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
• F27D 5/00 - Supports, screens or the like for the charge within the furnace
• H01M 4/00 - Electrodes
• C04B 35/195 - Alkaline earth aluminosilicates, e.g. cordierite
• C04B 35/443 - Magnesium aluminate spinel
• F27D 3/12 - Travelling or movable supports or containers for the charge
• F27B 14/10 - Crucibles

Abstract

The present disclosure relates to compositions for industrial furnace trays, and to methods for manufacturing the compositions thereof. The present disclosure also relates to a tray comprising a composition according to this disclosure. The tray has the characteristics of high thermal and chemical stability, and improved lifetime.

IPC Classes  ?

• C04B 35/101 - Refractories from grain sized mixtures
• C04B 35/195 - Alkaline earth aluminosilicates, e.g. cordierite
• C04B 35/443 - Magnesium aluminate spinel
• C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
• F27B 14/10 - Crucibles
• F27D 3/12 - Travelling or movable supports or containers for the charge
• F27D 5/00 - Supports, screens or the like for the charge within the furnace
• H01M 4/00 - Electrodes

Abstract

The present invention relates to a silicon-containing suspension for use in the manufacture of negative electrode materials for secondary batteries, to a method for producing such a suspension and to a composite powder obtainable from such a suspension.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/139 - Processes of manufacture
• 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 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• C01B 33/02 - Silicon
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

Positive electrode active material comprising lithium, a metal other than lithium and oxygen, wherein the metal has a composition M, wherein M consists of Ni in a content x, Mn in a content y, Co in a content z, and A in a content a, wherein x, y, z, and a are expressed as molar contents, wherein x+y+z+a=100%, wherein x≥70.0%, wherein 0≤y≤30.0%, wherein 0≤z≤30.0%, wherein 0≤a≤2.0%, wherein an X-Ray diffractogram of the positive electrode active material has a (003) peak located at 2θ=17.0° to 20.0° and (104) peak located at 2θ=43.0° to 46.0°, wherein the ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.530.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/42 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
• C01G 53/506 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.5, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.5 with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.8, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.8

Abstract

Present disclosure relates to a nickel-manganese bearing carbonate precursor material with a narrow span, its use for preparing a cathode active material; to a cathode active material for rechargeable batteries, to a method for preparing this nickel-manganese bearing carbonate precursor material and a method for preparing the cathode active material; and to a battery comprising said cathode active material.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
• C01G 53/82 - Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The invention provides a process for generating a metal sulphide comprising nickel and/or cobalt, comprising the steps of: i. forming an aqueous metal sulphate solution by reacting sulphuric acid with a raw material feed comprising nickel and/or cobalt in water; ii. crystallizing said metal sulphate from said aqueous metal sulphate solution to form a crystallized metal sulphate in a mother liquor, the mother liquor comprising an uncrystallized metal sulphate; iii. separating said crystallized metal sulphate from said mother liquor; iv. reacting at least a portion of said uncrystallized metal sulphate with hydrogen sulphide in an acidic aqueous medium, thereby obtaining a slurry consisting of a solid phase comprising a metal sulphide precipitate and an aqueous phase comprising one or more impurities and sulphuric acid; and v. separating said solid phase and said aqueous phase.

IPC Classes  ?

• C01G 53/11 - SulfidesOxysulfides
• C01G 51/15 - SulfidesOxysulfides

Abstract

The present invention concerns an environmentally benign method for removal of uranium and/or scandium from nickel- and/or cobalt-containing resources, comprising the steps of: i. leaching a solid material feed comprising uranium and/or scandium, and at least 20 wt% of at least one of nickel and cobalt, with a mineral acid in an aqueous medium, thereby obtaining a leachate solution comprising uranium and/or scandium ions, and at least one of nickel ions and cobalt ions, ii. precipitating at least in part uranium and/or scandium, by adding a phosphate compound and bringing the pH of said leachate solution to at least 2.5, and separating the precipitate from the aqueous medium; iii. extracting the remaining uranium and/or scandium, from the aqueous filtrate obtained in step ii. into an organic phase comprising an extractant and a diluent, thereby obtaining an aqueous raffinate comprising at least one of nickel ions and cobalt ions.

IPC Classes  ?

• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 60/02 - Obtaining thorium, uranium or other actinides
• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
• C22B 59/00 - Obtaining rare earth metals

Abstract

The present invention relates to a method for manufacturing a solid sulfide electrolyte by mixing of the solid electrolyte precursor comprising Li2S, Li3PS4 and LiX, such as LiCl. The present inventors have demonstrated that a low-energy mixing step is sufficient to prepare the solid electrolyte mixture, which after subjection to the heat-treatment affords the solid sulfide electrolyte having an argyrodite-type crystal structure in high purity.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 6/18 - Cells with non-aqueous electrolyte with solid electrolyte
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention provides a process for the preparation of a nickel sulphate solution in a column reactor, whereby metal particles containing nickel are reacted with an oxidative leach solution comprising sulphuric acid and hydrogen peroxide in water and whereby the acid in the oxidative leaching solution is substantially depleted.

IPC Classes  ?

• C01G 53/10 - Sulfates

Abstract

The present invention relates to solid materials which are obtainable by melt-quenching mixtures of lithium sulphide, boron sulphide and boron oxide, thereby forming a glassy solid which is suitable for use as a lithium-ion conducting electrolyte. These sulphide based lithium-ion conducting solid electrolytes exhibit a large thermal stability as supported by the large ΔTx, in particular a ΔTx of more than 100° C.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C03B 32/00 - Thermal after-treatment of glass products not provided for in groups , e.g. crystallisation, eliminating gas inclusions or other impurities
• C03C 3/14 - Silica-free oxide glass compositions containing boron
• C03C 4/14 - Compositions for glass with special properties for electro-conductive glass
• H01M 50/431 - Inorganic material

Abstract

The present invention relates to methods for the production of solid materials which are obtainable by melt-quenching mixtures comprising lithium sulphide and boron sulphide, thereby forming a glassy solid which is suitable for use as a lithium-ion conducting electrolyte. The present inventors have demonstrated that the method results in the production of sulphide based lithium-ion conducting solid electrolytes of improved quality, in particular having less inclusions of foreign material, such as gas bubbles.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C03C 3/14 - Silica-free oxide glass compositions containing boron
• C03C 4/14 - Compositions for glass with special properties for electro-conductive glass

Abstract

The present invention relates to solid materials which are obtainable by melt-quenching mixtures of lithium sulphide, boron sulphide and boron oxide, thereby forming a glassy solid which is suitable for use as a lithium-ion conducting electrolyte. These sulphide based lithium-ion conducting solid electrolytes exhibit a large thermal stability as supported by the large ΔTx, in particular a ΔTx of more than 100° C.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C01B 35/14 - Compounds containing boron and nitrogen, phosphorus, sulfur, selenium or tellurium
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 50/437 - Glass

Abstract

The present invention concerns a process for the recovery of Li, and one or more of Ni, Mn and Co, from aqueous acidic solutions such as those obtained by leaching of Li-ion batteries or their waste. The process is based on the use of a saponified organic extractant. The extractant is saponified with LiOH instead of with NaOH. This avoids the introduction of another alkali metal to the raffinate, which would interfere with the recovery of Li. The saponification is performed in conditions suitable for the obtention of a homogeneous and clear micro-emulsion. Such an emulsion is stable and therefore particularly suitable for an industrial application. Ni, Mn and Co are extracted and can be recovered from the organic phase, while Li can be recovered from the aqueous phase. Part of the Li can be converted to LiOH and re-used for the saponification.

IPC Classes  ?

• C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 26/12 - Obtaining lithium

Abstract

This invention relates to a S-free and Cl-free transition metal bearing precursor material, its use for preparing a positive electrode active material; to a positive electrode active material for rechargeable batteries, to a method for preparing this transition metal bearing precursor material and a method for preparing the positive electrode active material; and to a battery comprising said positive electrode active material.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel

Abstract

The present invention provides a process for preparing a high-purity nickel sulphate solution, comprising the steps of: i. forming an aqueous mixed metal sulphate solution by reacting sulphuric acid with a raw material feed comprising nickel, manganese, cobalt, and magnesium in an aqueous medium; ii. extracting manganese from said aqueous mixed metal sulphate solution, thereby obtaining a first aqueous raffinate comprising nickel, cobalt and magnesium, and a manganese-rich organic phase; iii. extracting cobalt from said first aqueous raffinate, thereby obtaining a second aqueous raffinate comprising nickel and magnesium, and a cobalt-rich organic phase; and iv. extracting magnesium from said second aqueous raffinate solution, thereby obtaining a high-purity nickel sulphate solution, and a magnesium-rich organic phase.

IPC Classes  ?

• C01G 53/10 - Sulfates
• C01G 53/01 - Preparation or separation involving a liquid-liquid extraction, an adsorption or an ion-exchange
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 3/08 - Sulfuric acid
• C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
• C22B 26/22 - Obtaining magnesium
• C22B 47/00 - Obtaining manganese

Abstract

A composite powder for use in a negative electrode of a battery comprising composite particles, said composite particles comprising a carbon matrix material and silicon-based particles embedded in said carbon matrix material, said composite powder having a Raman spectrum, wherein a D band and a D'band, both corresponding to the carbon matrix material contribution, have their respective maximum intensity ID between 1330 cm−1 and 1360 cm−1 and ID′ between 1600 cm−1 and 1620 cm−1, wherein the ratio ID/ID′ is at least equal to 0.9 and at most equal to 4.0.

IPC Classes  ?

• C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,

Abstract

A positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M′, and oxygen. M′ comprises Ni in a content x, wherein x≥80 at %, relative to M′; Co in a content y, wherein 0.01≤y≤20.0 at %, relative to M′; Mn in a content z, wherein 0≤z≤20.0 at %, relative to M′; Y in a content b, wherein 0.01≤b≤2.0 at %, relative to M′; Zr in a content c, wherein 0.01≤c≤2.0 at %, relative to M′; D in a content a, wherein 0≤ a≤5.0 at %, relative to M′. D is selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises secondary particles, wherein each of the secondary particles consists of at least two primary particles and at most twenty primary particles.

IPC Classes  ?

• C01G 53/506 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.5, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.5 with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.8, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.8
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A powderous positive electrode material comprises single crystal monolithic particles comprising Ni and Co and having a general formula Li1+a(Niz(Ni1/2Mn1/2)yCox)1−kAk)1−aO2, wherein A is a dopant, −0.03≤a≤0.06, 0.05≤x≤0.35, 0.10≤z≤0.95, x+y+z=1 and k≤0.05. The particles have a particle size distribution with a D50 between 2.0 μm and 8.0 μm and with a span≤1.5.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

Abstract

A metal oxide product for manufacturing a positive electrode active material for lithium-ion rechargeable batteries comprises one or more oxides of one or more metals M′, wherein M′ comprises: Ni in a content x between 20.0 mol % and 100.0 mol %, relative to M′, Co in a content y between 0.0 mol % and 60.0 mol %, relative to M′, Mn in a content z between 0.0 mol % and 80.0 mol %, relative to M′, D in a content a between 0.0 mol % and 5.0 mol %, relative to the total atomic content of M′, wherein D comprises at least one element of the group consisting of: Al, B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, Y, V, W, Zn, and Zr, wherein x+y+z+a=100.0 mol %, wherein the metal oxide product comprises secondary particles each comprising a plurality of primary particles.

IPC Classes  ?

• C01G 53/44 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present invention relates to Li-rich Mn-rich cathode active material comprising high- valence transition metal ions, such as Mo, exhibiting high capacity comprising Li, M and O, wherein M comprises: Ni in a molar ratio x, wherein 0.10 ≤ x ≤ 0.50 relative to M; Mn in a molar ratio y, wherein 0.50 ≤ y ≤ 0.80 relative to M; and Mo in a molar ratio z, wherein 0.001 ≤ z < 0.05 relative to M; wherein the molar ratio of Li to M (Li/M) is between 1.00 and 1.60; and wherein the content of Li, Ni, Mn and Mo is measured by ICP-AES, and x+y+z is 1.00.

IPC Classes  ?

• C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

A cathode active material for rechargeable batteries comprising lithium, M1, and oxygen, wherein M1 comprises: - Ni in a content x1, wherein 0.0 < x1 < 45.0 at%, relative to M1; - Mn in a content y1, wherein 50.0 < y1 < 98.0 at%, relative to M1; - Co in a content z1, wherein 0.0 < z1< 15.0 at%, relative to M1; - Na in a content w1, wherein 0.0 < w1 < 2.0 at%, relative to M1; - S in a content molar ratio ql, wherein 0.0 < q1 < 5.0 at%, relative to M1; - D1 in a content molar ratio dl, wherein 0.0 < d2 < 2.0 at%, relative to M1, wherein D1 is an element different from Li, Ni, Mn, Co, Na, S and O; wherein the content of Ni, Mn, Co, Na, S and D1 is measured by ICP-OES, and x1+y1+z1+w1+q1+d1 is 100.0 at%, and wherein the cathode active material has a BET value of at least 1.0 m2/g.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present patent application relates to a method of recovering valuable metals from waste batteries comprising - a pyrolysis step comprising pyrolysis of the waste batteries at a temperature of from about 700°C to about 1300°C, thus obtaining pyrolyzed batteries; - a size reduction step, comprising size reduction of the pyrolyzed batteries; - a smelting step, comprising smelting the pyrolyzed, size reduced waste batteries at temperatures of 1350°C or higher under oxidizing conditions. The method shows improved control of the smelting step and the temperature, reduces the amount of slag generated as well as the release of explosive gas.

IPC Classes  ?

• C22B 1/00 - Preliminary treatment of ores or scrap
• C22B 1/02 - Roasting processes
• C22B 5/02 - Dry processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 9/10 - General processes of refining or remelting of metalsApparatus for electroslag or arc remelting of metals with refining or fluxing agentsUse of materials therefor
• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 26/12 - Obtaining lithium
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• C22B 1/14 - AgglomeratingBriquettingBindingGranulating

Abstract

The present invention is related to a positive electrode active material powder for lithium-ion rechargeable batteries, wherein the positive electrode active material powder comprises particles, wherein each of the particles consists of at least one primary particle and at most twenty primary particles, wherein the positive electrode active material powder essentially comprises Li, Ni, Mn, Al, and O, and wherein Al is introduced by (i) adding a material formed by heating a mixture comprising a Li source and a transition metal composite precursor essentially comprising Ni and Mn to an aqueous solution comprising a Al-containing compound and (ii) milling the material. Due to the aforementioned introduction of Al, the positive electrode active material powder may have a ratio of Ni3+ to Ni2+ as measured by XPS being at least 1.45.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/00 - Electrodes

Abstract

The present invention relates to a cathode active material for rechargeable batteries comprising Na, M, and O, wherein M consists of Fe in a molar ratio a, wherein 0.05 ≤ a ≤ 0.40 relative to M; Mn in a molar ratio b, wherein 0.50 ≤ b ≤ 0.90 relative to M; and X in a molar ratio c, wherein 0.01 ≤ c ≤ 0.10 relative to M, and wherein X is at least one element selected from B, Si, K, Co, Ga, Rb, Rh, Cs, Re, Tl and Pb; wherein a+b+c is 1.00, the molar ratio of Na to M (Na/M) is between 0.40 and 1.10, and the content of Na, Fe, Mn and X is measured by ICP-OES and relates to a method for manufacturing the same.

IPC Classes  ?

• C01G 49/00 - Compounds of iron
• H01M 10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium

Abstract

The present invention relates to a positive electrode active material comprising Li, Ni, one or both of Mn and Co, and O, wherein the surface layer comprises S and a transition metal. It was found during the temperature and pressure treatment that a sulfur layer is formed between the positive electrode material and sulfide solid electrolyte which strongly enhances the ionic conductivity and the electrochemical performance.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a positive electrode composite active material comprising a coated lithium electrode material and a sulfide solid electrolyte. It was found during the temperature and pressure treatment that a sulfur layer is formed between the coated positive electrode material and sulfide solid electrolyte which strongly enhances the ionic conductivity and the electrochemical performance.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A positive electrode active material powder for lithium-ion rechargeable batteries, comprising: a first fraction of polycrystalline particles, each consisting of more than twenty primary particles; a second fraction of first particles and a third fraction of second particles, the first and second particles each consisting of one to twenty primary particles, the polycrystalline particles comprising: Ni in a content of 60.0 to 100.0 at%, Co in a content of 0.0 to 20.0 at%, and Mn in a content of 0.0 to 20.0 at%; the first particles comprising: Ni in a content of 60.0 to 100.0 at%, Co in a content of 0.0 to 20.0 at%, and Mn in a content of 0.0 to 20.0 at%; the second particles comprising: Ni in a content of 0.0 to 10.0 at%, Co in a content of 80.0 to 100.0 at%, and Mn in a content of 0.0 to 10.0 at%.

IPC Classes  ?

• C01G 51/00 - Compounds of cobalt
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

edgecenteredgecenteredgecenteredgecenteredgecenteredgecentercenter are measured by cross-sectional SEM-EDS..

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/00 - Electrodes

Abstract

The present invention relates to a positive electrode active material for rechargeable batteries, wherein the positive electrode active material comprises lithium, oxygen, nickel, cobalt, and manganese, wherein the positive electrode active material is a powder comprising single particles and/or secondary particles, wherein each of the single particles consists of only one primary particle and each of the secondary particles consists of at least two primary particles and at most twenty primary particles as observed in a SEM image in a field of view of at least 45 μm x at least 60 μm, wherein the atomic content of Ni, relative to the total amount of Ni, Co, and Mn, of 45.0 to 95.0 at%, as determined by ICP-OES; having an atomic content of Al, relative to the total amount of Ni, Co, and Mn, of 0.3 to 3.0 at%, as determined by ICP-OES; wherein the atomic content of Co, relative to the total amount of Ni, Co, and Mn, of 3.0 to 30.0 at%, as determined by ICP-OES; wherein the atomic content of Mn, relative to the total amount of Ni, Co, and Mn, of 3.0 to 35.0 at%, as determined by ICP-OES; wherein the positive electrode active material further comprises: aluminum and has an atomic ratio of Al to the total amount of Ni, Co, and Mn of 1.0 to 7.0, as determined by XPS analysis, and cobalt and has an atomic ratio of Co to the total amount of Ni, Co, and Mn of 0.25 to 0.45, as determined by XPS analysis.

IPC Classes  ?

• C01G 53/82 - Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
• C01G 53/00 - Compounds of nickel
• H01M 4/00 - Electrodes

Abstract

The invention provides a process for preparing a crystallized metal sulphate comprising nickel and/or cobalt, said process comprising the steps of: i. forming an aqueous metal sulphate solution by reacting sulphuric acid with a raw material feed comprising nickel and/or cobalt in water in presence of a reducing agent; ii. crystallizing said metal sulphate from said aqueous metal sulphate solution to form a crystallized metal sulphate in a mother liquor, the mother liquor comprising an uncrystallized metal sulphate and optionally one or more metal impurities; iii. separating said crystallized metal sulphate from said mother liquor comprising an uncrystallized metal sulphate and optionally one or more metal impurities; iv. reacting at least a portion of said uncrystallized metal sulphate in said mother liquor with a sulphidizing agent in an aqueous medium, thereby obtaining a slurry consisting of a solid phase comprising a metal sulphide precipitate and an aqueous phase comprising one or more impurities; and v. separating said solid phase comprising a metal sulphide precipitate and said aqueous phase comprising one or more impurities and sulphuric acid.

IPC Classes  ?

• C22B 3/08 - Sulfuric acid
• B01D 9/00 - Crystallisation
• C01G 51/10 - Sulfates
• C01G 51/15 - SulfidesOxysulfides
• C01G 51/82 - Compounds containing cobalt, with or without oxygen or hydrogen, and containing two or more other elements
• C01G 53/10 - Sulfates
• C01G 53/11 - SulfidesOxysulfides
• C01G 53/82 - Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
• C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

OO), thereby obtaining an aqueous nickel and/or cobalt salt solution, respectively, comprising ferric salt.

IPC Classes  ?

• C22B 3/08 - Sulfuric acid
• C22B 23/00 - Obtaining nickel or cobalt
• C22B 3/10 - Hydrochloric acid
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes

Abstract

22-bearing off-gas, and flue dust; and, separating the matte phase from the slag phase. This process offers an alternative scheme for the separation and recovery of metals, in particular Pb and Cu, from slags by converting them into metal sulfides. Substituting carbon with sulfur results in the decarbonization of the industrial recovery process.

IPC Classes  ?

• C21B 3/06 - Treatment of liquid slag
• C22B 7/04 - Working-up slag
• C22B 13/02 - Obtaining lead by dry processes
• C22B 15/00 - Obtaining copper

Abstract

The present invention concerns material comprising hydroxide or oxyhydroxide of at least one or more metal elements, and a cathode active material for lithium-ion secondary batteries. The present invention relates to a manganese-containing precursor for cathode active material for secondary batteries, said precursor comprising M and element oxygen, wherein M compress Ni in a content x, wherein 0.0 ≤ x ≤ 50.0 mol%, relative to M, Mn in a content y, wherein 50.0 ≤ y ≤ 90.0 mol%, relative to M, Co in a content z, wherein 0.0 ≤ z ≤ 40.0 mol%, relative to M, at least one element selected from the group consisting of Al, Ti, V, Mg, Cr, Ca, Zr, Nb, Mo, Hf, Ta, and W, in a content t, 0.0≤t≤ 10.0 mol%, relative to M; wherein x, y, z, and t are measured by ICP-OES; and wherein x+y+z+t is 100.0 mol%; and wherein the manganese-containing precursor has a tap density, TD, of at least 1.65 g/cm3 and a ratio of a specific surface area, SSA, to the tap density, SSA/TD, of at least 12.00, expressed in unit (m2*cm3)/g2.

IPC Classes  ?

• C01G 45/12 - Complex oxides containing manganese and at least one other metal element
• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

(104)c(003)c(104)c(003)c(003)c is a full width at half maximum of a peak in a range of 2θ = 17°-20° after instrument correction.

IPC Classes  ?

• C01G 45/12 - Complex oxides containing manganese and at least one other metal element
• C01G 53/00 - Compounds of nickel

Abstract

The field of the present invention is the recovery of metals from Pb-bearing metallurgical slags. A process is described for the separation and recovery of metals, in particular Pb, Cu and Ni, from slags, by using a combination of sulfur and hydrogen instead of sources of carbon. Substituting carbon with sulfur and hydrogen significantly reduces the carbon footprint of the process. Target metals are selectively sent to a matte phase, an alloy, a Pb-bullion, or kept in a slag phase, this way allowing more efficient refining.

IPC Classes  ?

• C21B 3/06 - Treatment of liquid slag
• C22B 7/04 - Working-up slag
• C22B 13/02 - Obtaining lead by dry processes
• C22B 15/00 - Obtaining copper

Abstract

The present invention relates to lithium-deficient and halide-rich solid electrolytes. These solid electrolytes display an increased ionic conductivity.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 10/058 - Construction or manufacture

Abstract

The invention concerns N-type germanium monocrystals comprising phosphorus as a single dopant in an amount of at least 1.0 x 1019/cm³. Such crystals can be obtained by using the Czochralski pulling technique with GeP as dopant, whereby phosphorus is provided as single dopant in an amount of at least 1.0 x 1019/cm³. The obtained crystals show that the amount of surface defects is significantly reduced.

IPC Classes  ?

• C30B 15/00 - Single-crystal growth by pulling from a melt, e.g. Czochralski method
• C30B 29/08 - Germanium

Abstract

22S gas evolution upon contact with moisture.

IPC Classes  ?

• C01F 7/78 - Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements
• H01M 10/0562 - Solid materials
• C01D 15/00 - Lithium compounds
• H01M 10/052 - Li-accumulators

Abstract

The present invention relates to a lithium manganese-based oxide positive electrode active material comprising an outer layer of Al for lithium-ion secondary batteries (LIBs) suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) applications.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

Process for the separation of Li from oxides of one or more of Co and Ni contained in a feed, comprising the steps of: contacting, in aqueous medium, the feed with a quantity of sulfidizing agent, sufficient to convert a major part of the Co and/or Ni to sulfides, and a quantity of mineral acid sufficient to reach a pH of 1 to 5, thereby forming an aqueous slurry containing solid Co and/or Ni sulfides, and a solution containing Li; and, separating the solids from the solution, thereby obtaining solids containing Co and/or Ni sulfides, and a solution containing at least 70% of the Li. This process allows to convert Co and Ni to solid sulfides and at the same time to efficiently separate them from soluble compounds such as Li, Mn and other impurities.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C01G 51/15 - SulfidesOxysulfides
• C01G 53/11 - SulfidesOxysulfides
• C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
• C22B 47/00 - Obtaining manganese
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

233, and wherein the Na-loss is a difference between a first Na content in the mixture and a second Na content in the heated material, the first and second Na contents being measured via ICP-OES and being relative to a total amount of the transition metals.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/00 - Electrodes

Abstract

The present invention provides a process for the preparation of a nickel sulphate solution in a column reactor, whereby metal particles containing nickel are reacted with an oxidative leach solution comprising sulphuric acid and hydrogen peroxide in water and whereby the acid in the oxidative leaching solution is substantially depleted.

IPC Classes  ?

• C01G 53/10 - Sulfates

Abstract

The present invention relates a positive electrode active material comprising lithium, oxygen, nickel, and at least one metal selected from the group consisting of manganese and cobalt, comprising Ni in a content x', wherein 40.0 ≤ x' ≤ 98.0 mol%, relative to the sum of Ni, Mn, and Co, Mn in a content y', wherein 0.0 ≤ y' ≤ 30.0 mol%, relative to the sum of Ni, Mn, and Co, Co in a content z', wherein 0.0 ≤ z' ≤ 30.0 mol%, relative to the sum of Ni, Mn, and Co, wherein the positive electrode active material has an enriched amount of silicon and boron in the surface layer. This positive electrode active material the electrochemical performance of a battery, such as the first discharge capacity and the cycling efficiency.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/00 - Electrodes

Goods & Services

Chemical preparations for scientific purposes, other than for medical or veterinary use; Chemical reagents, other than for medical or veterinary purposes; Galvanizing baths; Galvanizing preparations; Mineral acids. Conductors, electric; Electrolysers; Electrolysis devices; electrolyte analyzer; Electronic chips for the manufacture of integrated circuits; Integrated circuits; Integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video; Printed circuit boards; Printed circuits; Semiconductors.

Abstract

The present invention relates to a method for manufacturing a boron treated positive electrode active material and the boron treated positive electrode active material obtainable from said method. The present inventors believe that the boron treated positive electrode active material of the invention has a lithium boron oxide compound on the surface of said positive electrode active material. It was demonstrated that the boron treated positive electrode active material of the invention exhibits exceptionally advantageous properties. For example, compared to untreated variants cycling stability is vastly improved, cross-talk phenomena between positive electrode and negative electrode were mitigated even after 1000 cycles and a stable positive electrode electrolyte interface is achieved with mitigated phase change even after long-term cycling.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

A positive electrode active material for lithium-ion secondary batteries comprises Li, Co, O, and optionally M′. M′ comprises Al and/or Ti and optionally one or more elements selected from the group consisting of Ni, Mn, B, Sr, Mg, Nb, W, F, and Zr. A molar ratio of Co to M′+Co (Co/(M′+Co)) is more than 0.90. The positive electrode active material comprises a first LCO powder and a second LCO powder that are both single-crystalline powders. The first LCO powder has a first median particle size D50A of between 12 μm and 25 μm, the second LCO powder has a second median particle size D50B of between 3 μm and 8 μm, and the volume fraction of the second LCO powder relative to the total volume of the positive electrode active material is between 10% and 40%.

IPC Classes  ?

• C01G 51/00 - Compounds of cobalt

Abstract

The present invention relates to a positive electrode active material for solid-state rechargeable batteries, comprising lithium, oxygen, nickel, and at least one metal selected from the group comprising manganese and cobalt, wherein characterized in that said positive electrode active material further comprises: —fluorine and has an atomic ratio of F to the total amount of Ni, Mn, and/or Co between 0.05 to 3.0, as determined by XPS analysis, and —carbon, wherein the carbon contents are from than 370 ppm to 5000 ppm, by the total weight of said positive electrode active material, as determined by a carbon analyzer.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present invention relates to a battery comprising a high-concentrated electrolyte and a negative electrode for a battery comprising a metal substrate, and a protective layer disposed directly on at least a part of the metal substrate, wherein the protective layer comprises a copolymer obtainable by the reaction between two or more monomers, a fluoropolymer additive, and a lithium salt. The present inventors have demonstrated that the combination of the electrolyte and the negative electrode results in a reduced resistance within the battery.

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0568 - Liquid materials characterised by the solutes
• H01M 10/0569 - Liquid materials characterised by the solvents

Abstract

A positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Mn in a content y, Co in a content z, D in a content a, Zr in a content b, wherein 55.0 mol %≤x≤95.0 mol %, 0.0 mol %≤y≤40.0 mol %, 0.0 mol %≤z≤40.0 mol %, 0.0 mol %≤a≤2.0 mol %, and 0.01 mol %≤b≤5.0 mol %. D is at least one element other than Li, Ni, Mn, Co, and O. The positive electrode active material has a Zr content ZrX and a carbon content C. ZrX is expressed as a molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr. C is expressed in wt. % by total weight of the positive electrode active material. The ratio of ZrX to C is between 52−0.413·x and 42−0.413·x.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 10/0562 - Solid materials

Abstract

22 structure; wherein M' comprises titanium (Ti) and at least one element selected from the group consisting of nickel (Ni) and manganese (Mn); wherein a grain boundary is present between adjacent primary particles of the secondary particles; wherein a concentration of Ti in the grain boundary is greater than a concentration of Ti in the adjacent primary particles; and wherein the positive electrode active material powder has a surface area between 0.3 m2/g and 1.2 m2/g as determined by BET measurement.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids

Abstract

The present invention relates to a negative electrode for a battery comprising a metal substrate, and a protective layer disposed directly on at least a part of the metal substrate, wherein the protective layer comprises a copolymer obtainable by the reaction between two or more monomers, a fluoropolymer additive, and a lithium salt. The present inventors have demonstrated that the protective layer functions a self-healing film on the negative electrode.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

A positive electrode active material can be used for a solid-state rechargeable battery. The positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Co in a content y, Mn in a content z, an element other than Li, O, Ni, Co, Mn, Al, B, and W in a content a, B in a content b, Al in a content c, and W in a content d, wherein 50.0≤x≤95.0 mol %, 0≤y≤40.0 mol %, 0≤z≤70.0 mol %, 0≤a≤2.0 mol %, 0.01≤b≤1.6 mol %, 0.00≤c≤1.5 mol %, and 0.00≤d≤1.5 mol %, all relative to M′. The positive electrode active material has a B content BA defined as A positive electrode active material can be used for a solid-state rechargeable battery. The positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Co in a content y, Mn in a content z, an element other than Li, O, Ni, Co, Mn, Al, B, and W in a content a, B in a content b, Al in a content c, and W in a content d, wherein 50.0≤x≤95.0 mol %, 0≤y≤40.0 mol %, 0≤z≤70.0 mol %, 0≤a≤2.0 mol %, 0.01≤b≤1.6 mol %, 0.00≤c≤1.5 mol %, and 0.00≤d≤1.5 mol %, all relative to M′. The positive electrode active material has a B content BA defined as b ( x + y + z + b + c + d ) , A positive electrode active material can be used for a solid-state rechargeable battery. The positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Co in a content y, Mn in a content z, an element other than Li, O, Ni, Co, Mn, Al, B, and W in a content a, B in a content b, Al in a content c, and W in a content d, wherein 50.0≤x≤95.0 mol %, 0≤y≤40.0 mol %, 0≤z≤70.0 mol %, 0≤a≤2.0 mol %, 0.01≤b≤1.6 mol %, 0.00≤c≤1.5 mol %, and 0.00≤d≤1.5 mol %, all relative to M′. The positive electrode active material has a B content BA defined as b ( x + y + z + b + c + d ) , and a content BB. BB is expressed as molar fraction compared to the sum of molar fractions of Ni, Mn, Co, B, Al, and W, as measured by XPS analysis, wherein the ratio BB/BA>10.0.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel

Abstract

The present invention relates to novel transition metal oxyfluoride compounds and methods for manufacturing said novel transition metal oxyfluorides. The inventors have demonstrated that by treating the transition metal oxides with a fluorine containing gas the corresponding transition metal oxyfluoride compounds are obtained.

IPC Classes  ?

• C01G 45/00 - Compounds of manganese
• H01M 4/1315 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy

Abstract

The present invention provides liquid cobalt resinate compositions as a liquid composition for use in auto-oxidizable coatings or as accelerator in unsaturated polyester resins, comprising: i. cobalt resinate, in an amount of 0.5 to 6.0 wt. % cobalt, relative to the total weight of said liquid composition; ii. one or more antioxidants in an amount of 0.1 to 2.5 wt. %, relative to the total weight of said liquid composition; and iii. one or more organic solvents, in an amount of 25 to 90 wt. %, relative to the total weight of said liquid composition.

IPC Classes  ?

• C08K 5/13 - PhenolsPhenolates
• C09D 7/63 - Additives non-macromolecular organic
• C09D 193/04 - Rosin

Abstract

The present disclosure concerns a process for the removal of Cu and Fe from an acidic aqueous solution further containing one or more of Ni and Co, comprising the steps of: —adding a metallic reagent comprising one or more of Ni and Co to the acidic solution, in oxidizing conditions, thereby neutralizing the acidic solution, and forming a precipitate comprising Cu and Fe, wherein at least part of the Cu and Fe is in the form of a hydroxide; and, —separating the Cu and Fe precipitate from the solution, thereby obtaining a solution depleted in Cu and Fe. The process drastically reduces the need for foreign neutralizing agents, thereby restricting or even completely avoiding the introduction of additional impurities into the process. It is advantageously applied on an acidic aqueous solution obtained by leaching materials having the same composition as the metallic reagent.

IPC Classes  ?

• C22B 3/46 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 15/00 - Obtaining copper
• C22C 19/00 - Alloys based on nickel or cobalt
• C22C 19/03 - Alloys based on nickel or cobalt based on nickel
• C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention provides a semi-batch process for the preparation of a nickel or cobalt sulphate solution, whereby sulphuric acid and hydrogen peroxide are peri- odically fed via a feed section to a reaction zone and whereby an acidic aqueous medium is circulated through the reactor until a predetermined concentration of nickel or cobalt, respectively, in said nickel or cobalt sulphate solution is achieved.

IPC Classes  ?

• C22B 3/08 - Sulfuric acid
• C01G 53/10 - Sulfates
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes

Abstract

The present invention provides a multi-stage solvent extraction process for selectively extracting cobalt from an aqueous mixed metal solution comprising nickel and cobalt, whereby each solvent extraction stage is characterized by maintaining a magnesium concentration in an aqueous phase above a predetermined magnesium concentration.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C01F 5/40 - Magnesium sulfates
• C01G 51/10 - Sulfates
• C01G 53/10 - Sulfates
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 47/00 - Obtaining manganese
• B01D 11/04 - Solvent extraction of solutions which are liquid

Abstract

The present invention provides a process for the batch preparation of a nickel or cobalt sulphate solution in a reactor, whereby metal particles containing nickel or cobalt, respectively, are reacted with sulphuric acid, and whereby hydrogen peroxide is added until the sulphuric acid is sufficiently depleted.

IPC Classes  ?

• C22B 3/08 - Sulfuric acid
• C01G 53/10 - Sulfates
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes

Abstract

The present invention provides a process for preparing a nickel oxide, said nickel oxide comprising nickel and at least one of cobalt and manganese, said process comprising the steps of: i. extracting nickel and at least one of cobalt and manganese form a feed solution; ii. stripping an obtained organic phase with hydrochloric acid, thereby obtaining an aqueous solution comprising, respectively, nickel chloride, cobalt chloride and/or manganese chloride; iii. mixing nickel chloride and at least one of cobalt chloride and manganese chloride obtained in step ii. in a predetermined ratio; iv. hydropyrolysis of the aqueous solution formed in step iii. to afford a nickel oxide comprising nickel and at least one of cobalt and manganese, and gaseous hydrochloric acid; v. separating the gaseous hydrochloric acid formed in step iv. from said nickel oxide formed in step iv.; and vi. recycling the gaseous hydrochloric acid obtained in step v. upstream of said hydropyrolysis in step iv.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• C01G 53/09 - ChloridesOxychlorides
• C01G 53/10 - Sulfates
• H01M 6/52 - Reclaiming serviceable parts of waste cells or batteries

Abstract

The present invention provides a process for preparing a high-purity nickel sulphate solution, comprising the steps of: i. providing an aqueous feed solution comprising nickel. cobalt, calcium and magnesium: ii. extracting cobalt, calcium, and partly magnesium from said aqueous feed solution using a first solvent comprising a first alkylphosphorus-based acidic extractant, thereby obtaining an aqueous raffinate comprising nickel and magnesium: iii. extracting magnesium from said aqueous raffinate solution comprising nickel and magnesium using a second solvent comprising a second alkylphosphorus-based acidic extractant, thereby obtaining a high-purity aqueous nickel sulphate solution comprising nickel and magnesium: iv. stripping the first loaded solvent comprising cobalt, calcium and magnesium with an aqueous solution comprising a mineral acid.

IPC Classes  ?

• C01G 53/10 - Sulfates
• C01G 53/00 - Compounds of nickel

Abstract

The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein the halogen intermediate is produced from the Li halide fumed from the molten slag. The halide is thus efficiently re-used in the process, while the lithium is recovered and isolated.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 7/04 - Working-up slag
• C22B 26/12 - Obtaining lithium
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein said halogen intermediate is a gaseous halogen or gaseous halogen compound.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 7/04 - Working-up slag
• C22B 26/12 - Obtaining lithium
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention relates to aliovalently substituted argyrodite-type solid electrolyte solid electrolytes. These solid electrolytes display and increased ionic conductivity.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C01B 17/22 - Alkali metal sulfides or polysulfides
• C01B 17/45 - Compounds containing sulfur and halogen, with or without oxygen
• H01M 10/052 - Li-accumulators

Abstract

The present invention relates to aliovalently substituted argyrodite-type solid electrolyte solid electrolytes. These solid electrolytes display and increased ionic conductivity.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C01B 17/22 - Alkali metal sulfides or polysulfides
• C01B 17/45 - Compounds containing sulfur and halogen, with or without oxygen
• H01M 10/052 - Li-accumulators

Abstract

The present invention provides electrochemical wet etching methods and processes useful for manufacturing compound semiconductors, whereby a monocrystalline silicon carbide substrate having a porous surface layer is electrochemically wet etched and whereby the applied voltage is varied during said electrochemical wet etching process step.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching
• H01L 21/3063 - Electrolytic etching
• H01L 21/762 - Dielectric regions

Abstract

The present invention provides electrochemical wet etching methods and processes useful for manufacturing compound semiconductors, whereby a monocrystalline silicon carbide substrate having a porous surface layer is electrochemically wet etched and whereby the applied voltage is varied during said electrochemical wet etching process step.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching
• H01L 21/3063 - Electrolytic etching
• H01L 21/762 - Dielectric regions

Abstract

The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein the halogen intermediate is produced from the Li halide fumed from the molten slag. The halide is thus efficiently re-used in the process, while the lithium is recovered and isolated.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 9/10 - General processes of refining or remelting of metalsApparatus for electroslag or arc remelting of metals with refining or fluxing agentsUse of materials therefor
• C25C 3/02 - Electrolytic production, recovery or refining of metals by electrolysis of melts of alkali or alkaline earth metals
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein said halogen intermediate is a gaseous halogen or gaseous halogen compound.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C25B 1/20 - Hydroxides
• C25B 1/26 - ChlorineCompounds thereof
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

The present invention provides a process for the selective separation of iron from a raw material containing nickel and iron, comprising the steps of:  contacting the raw material containing nickel and iron with an acid solution thereby obtaining a leach solution containing iron and nickel, and a residue containing a major part of the iron;  adding a copper containing material to the leach solution and/or to the raw material containing nickel and iron, thereby precipitating the iron in the leach solution; and  separating the leach solution from the residue.

IPC Classes  ?

• C22B 3/08 - Sulfuric acid
• C22B 3/10 - Hydrochloric acid
• C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes

Abstract

The present invention relates to solid materials which are obtainable by melt-quenching mixtures of lithium sulphide, boron sulphide, boron oxide and lithium halides, thereby forming a glassy solid which is suitable for use as a lithium-ion conducting electrolyte. These sulphide based lithium-ion conducting solid electrolytes exhibit a high ionic conductivity.

IPC Classes  ?

• C01B 35/02 - BoronBorides
• C01B 17/20 - Methods for preparing sulfides or polysulfides, in general
• C01B 17/22 - Alkali metal sulfides or polysulfides
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/0562 - Solid materials
• C03C 3/32 - Non-oxide glass compositions, e.g. binary or ternary halides, sulfides, or nitrides of germanium, selenium or tellurium
• C03C 4/18 - Compositions for glass with special properties for ion-sensitive glass
• C03C 3/23 - Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
• H01M 10/052 - Li-accumulators

Abstract

The present disclosure is related to a crystallization process for the recovery of metals from starting materials comprising Ni and Li. The starting materials, either in aqueous solution or solid form, are reacted with an aqueous solution, reaching an acidity of preferably at least 500 g/L sulfuric acid, at a temperature of at least 45° C. Upon solid/liquid separation of the reaction products, a solid residue comprising the major part of the Ni as a hydrated sulfate, and an effluent solution comprising the major part of the Li, are obtained. This process is particularly suitable for recycling lithium-ion rechargeable batteries.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 3/08 - Sulfuric acid
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
• C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 26/12 - Obtaining lithium
• C22B 47/00 - Obtaining manganese

Abstract

The invention describes a process for the separation of Fe from Cu and one or more of Ni and Co contained in an alloyed powder having more than 1% by weight of Cu, comprising the steps of: —contacting, in oxidizing conditions, the alloyed powder with a stoichiometric amount of an acidic solution selected between a minimum suitable for dissolving 50% of all metallic elements except Fe, and a maximum suitable for dissolving 100% of all metallic elements except 50% of the Fe, thereby obtaining a leach solution containing a major part of the Cu and of the one or more of Ni and Co, and a residue containing a major part of the Fe; and, —separating the leach solution from the residue. Cu, Ni and/or Co from an alloyed powder are dissolved, while the major part of Fe is rejected to a solid residue and separated by solid/liquid separation.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 15/00 - Obtaining copper
• C22B 47/00 - Obtaining manganese
• C25C 1/12 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention relates to positive electrode active materials in rechargeable lithium-ion batteries having a difference in cobalt and nickel concentration between the center and the edge of secondary particle and having a specific range of crystallite size.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The invention relates to a positive electrode active material for suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) applications, wherein said material comprises lithium transition metal-based oxide particles comprising soluble S content and having a high specific surface area.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/44 - Methods for charging or discharging

Abstract

A method of electroplating a stress-free copper film on a substrate includes: providing the substrate; providing an electroplating bath that includes a copper salt, an acid, a leveler, a chlorine compound, an accelerator, a suppressor; and water; heating the electroplating bath to 25 to 60° C.; and electroplating the substrate in the electroplating bath to form the stress-free copper film while maintaining the electroplating bath at 25 to 60° C. The leveler is an organic compound containing an amine group. The method further includes annealing the stress-free copper film at 60-260° C. for 0.5 to 2 hours, or at 60-120° C. for 0.5 to 2 hours. A stress-free electroplated copper film is also disclosed.

IPC Classes  ?

• C25D 3/38 - ElectroplatingBaths therefor from solutions of copper
• C25D 17/00 - Constructional parts, or assemblies thereof, of cells for electrolytic coating
• H05K 3/24 - Reinforcing of the conductive pattern

Abstract

Li-bearing slags are typically produced when Li-batteries or their waste are recycled on a smelter. The Li recovery process comprises the steps of: - powdering the metallurgical slag to a particle size distribution having a D50 of less than 100 µm; - contacting, in an aqueous medium, the Li-containing metallurgical slag, and an alkaline Ca-compound, provided in amounts selected to obtain a molar ratio of the Ca in the Ca-compound to Li in the slag of at least 0.75, thereby obtaining a suspension; - heating the suspension to a temperature of more than 80 °C for at least 30 min, thereby obtaining a leached suspension; and, - separating solids from liquids in the leached suspension, thereby obtaining a leach solution containing a major part of the Li, and a solid residue containing Ca. This alkaline leaching process allows for a straightforward recovery of battery-grade LiOH from the leach solution, while consuming less reagents than known acidic leaching processes.

IPC Classes  ?

• C22B 1/00 - Preliminary treatment of ores or scrap
• C22B 3/12 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 7/04 - Working-up slag
• C22B 26/12 - Obtaining lithium
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

A powder for use in a negative electrode of a battery, the powder comprising particles, the particles comprising a matrix material and silicon-based particles dispersed in said matrix material, the powder having a total specific volume of open porosity at least equal to 0.005 cm3/g and at most equal to 0.05 cm3/g, a total specific volume of closed porosity at least equal to 0.01 cm3/g and at most equal to 0.1 cm3/g, and a ratio of the total specific volume of open porosity over the total specific volume of closed porosity at least equal to 0.01 and at most equal to 0.99.

IPC Classes  ?

• C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,

Abstract

Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises: Ni in a content x between 70.0 mol % and 95.0 mol %, Co in a content y between 0.0 mol % and 40.0 mol %, Mn in a content z between 0.0 mol % and 40.0 mol %, dopants in a content a between 0.0 mol % and 2.0 mol %, Zr in a content b between 0.1 mol % and 5.0 mol %, wherein x+y+z+a+b is 100.0 mol %, wherein Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises: Ni in a content x between 70.0 mol % and 95.0 mol %, Co in a content y between 0.0 mol % and 40.0 mol %, Mn in a content z between 0.0 mol % and 40.0 mol %, dopants in a content a between 0.0 mol % and 2.0 mol %, Zr in a content b between 0.1 mol % and 5.0 mol %, wherein x+y+z+a+b is 100.0 mol %, wherein Zr A = b ( x + y + z + b ) , Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises: Ni in a content x between 70.0 mol % and 95.0 mol %, Co in a content y between 0.0 mol % and 40.0 mol %, Mn in a content z between 0.0 mol % and 40.0 mol %, dopants in a content a between 0.0 mol % and 2.0 mol %, Zr in a content b between 0.1 mol % and 5.0 mol %, wherein x+y+z+a+b is 100.0 mol %, wherein Zr A = b ( x + y + z + b ) , wherein the positive electrode active material has a Zr content ZrB is expressed as molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr all as measured by XPS analysis, wherein ZrB/ZrA>50.0, the positive electrode active material comprising secondary particles having a plurality of primary particles, said primary particles having an average diameter of at least 250 nm.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel

Abstract

The present invention relates to a method for manufacturing a LGPS-type solid sulfide electrolyte. The present inventors have surprisingly found that by heat-treating of the mixed set of precursors at this high temperature and high pressure the solid sulfide electrolyte is obtained in high purity and in a short reaction time.

IPC Classes  ?

• H01M 6/18 - Cells with non-aqueous electrolyte with solid electrolyte
• H01M 10/052 - Li-accumulators
• H01M 10/0562 - Solid materials
• C01D 15/00 - Lithium compounds

Abstract

The present invention relates to solid materials which are obtainable by melt-quenching mixtures of lithium sulphide, boron sulphide, boron oxide and Se, Te, In or a combination thereof, thereby forming a glassy solid which is suitable for use in electrochemical cells, for example as lithium-ion and electronically conducting coating and exhibits a large thermal stability.

IPC Classes  ?

• C01B 17/22 - Alkali metal sulfides or polysulfides
• C01B 19/00 - SeleniumTelluriumCompounds thereof
• H01M 10/052 - Li-accumulators

Abstract

Provided is a process for the environmental-friendly treatment of sulfate-containing wastewater. The acidic, sulfate-containing wastewater is treated in a sulfate reducing bioreactor with influent and effluent looped through to the cathode compartment of an electrochemical cell. The electrochemical cell stabilizes the pH in the bioreactor by the in-situ production of base in the cathode compartment. Additionally, hydrogen is produced which is used in the bioreactor as electron donor for the sulfate reduction. The middle compartment of the electrochemical cell contains a sulfide rich aqueous solution in which the extracted cations are displaced by protons from the anode compartment. This results in the acidification of the sulfide rich solution, which is beneficial for the extraction of sulfides as H2S. This H2S can be used for the precipitation of metals in the beginning of the process, forming another loop.

IPC Classes  ?

• C02F 3/00 - Biological treatment of water, waste water, or sewage
• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
• C02F 101/10 - Inorganic compounds
• C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
• C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes

Abstract

The invention is directed to the use of electrolytic bronze deposits as substitutes for the noble metal electroplating of electronic circuits, e.g. for use in electronic payment cards and identity cards. The invention also relates to a novel layer sequence of bronze layers.

IPC Classes  ?

• C25D 3/58 - ElectroplatingBaths therefor from solutions of alloys containing more than 50% by weight of copper
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• C22C 9/02 - Alloys based on copper with tin as the next major constituent
• C22C 9/04 - Alloys based on copper with zinc as the next major constituent
• C22C 13/00 - Alloys based on tin
• C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
• C22C 30/04 - Alloys containing less than 50% by weight of each constituent containing tin or lead
• C22C 30/06 - Alloys containing less than 50% by weight of each constituent containing zinc
• C25D 5/10 - Electroplating with more than one layer of the same or of different metals
• C25D 5/12 - Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier

Abstract

The present invention relates to a lithium nickel-based composite oxide as a positive electrode active material for lithium-ion rechargeable batteries suitable for electric vehicle and hybrid electric vehicle applications, comprising lithium nickel-based oxide particles comprising tungsten.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type

Abstract

The present invention relates to a composite powder for use in a negative electrode of a battery, the composite powder comprising composite particles, the composite particles comprising a carbonaceous matrix material with silicon-based particles embedded therein and carbon nanotubes, and wherein the surface of the composite particles is at least partially covered by carbon nanotubes.

IPC Classes  ?

• H01M 4/134 - Electrodes based on metals, Si or alloys
• C01B 32/956 - Silicon carbide
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• 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 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A compound semiconductor wafer, comprising a composite layer structure with a stack (2) of layers (2a, 2b). The stack comprises a substrate layer of a semiconductor material and a porous layer extending over the substrate layer. The semiconductor material is one of the group consisting of In, GaAs, GaP or Ge. The porous layer is of InP and has a volume porosity of not more than 20%.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching

Abstract

The present disclosure concerns a 2-step smelting process, for recovering of Ni and Co from batteries and other sources. reducing smelting of the obtained slag using a heat source and a reducing agent. The process is more energy-efficient than a single-step reducing smelting process and provides for a higher purity alloy and for a cleaner final slag.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 7/04 - Working-up slag
• C22B 23/06 - Refining
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention provides novel bispidone ligands and transition metal complexes thereof, especially iron and manganese complexes thereof. Furthermore, the present invention also relates to the use of said bispidone ligands and complexes thereof as a siccative agent in curable liquid compositions.

IPC Classes  ?

• C07D 471/08 - Bridged systems
• C07F 15/02 - Iron compounds
• C08K 5/56 - Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond

Abstract

The present invention provides a compound semiconductor layered structure comprising: a semiconductor substrate having a bottom surface and a top surface; and a compound semiconductor film on top of said semiconductor substrate, said compound semiconductor film comprising a porous, polycrystalline bottom layer in direct contact with said top surface of said semiconductor substrate, and methods of making the same.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer

Abstract

The present invention relates to a lithium nickel-based oxide positive electrode active material for lithium-ion secondary batteries suitable for electric vehicle and hybrid electric vehicle applications, comprising lithium transition metal-based oxide particles comprising zirconium, and a preparation method for said positive electrode material.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel