Provided is an electrode body that exhibits a good cathode side capacitance, and an electrolytic capacitor provided with this electrode body. The electrode body used for a cathode of the electrolytic capacitor has a cathode foil and a carbon layer. The cathode foil is made of a valve acting metal, and an enlarged surface layer is formed on the surface thereof. The carbon layer is formed on the enlarged surface layer. The interface between the enlarged surface layer and the carbon layer has an uneven shape.
A solid electrolytic capacitor that exhibits both high withstand voltage and large capacity and a manufacturing method of the solid electrolytic capacitor are provided. The solid electrolytic capacitor includes anode foil, cathode foil facing the anode foil, and conductive polymers intervening between the anode foil and the cathode foil. The anode foil has tunnel-shaped etching pits formed on a surface layer of the anode foil, a dielectric oxide film layer formed on the surface layer of the anode foil, and a pseudo boehmite layer on the dielectric oxide film layer and formed on the surface layer of the anode foil. An amount of the pseudo boehmite layer is adjusted to be 0.4 mg·cm−2 to 1.8 mg·cm−2.
A solid electrolyte that gives high withstand voltage to solid electrolytic capacitors, a solid electrolytic capacitor using this solid electrolyte, conductive polymer dispersion for forming the solid electrolytic capacitor, and a manufacturing method thereof are provided. The solid electrolyte is formed using conductive polymer dispersion and includes conductive polymer in the dispersion. This conductive polymer is poly(3,4-ethylenedioxythiophene) doped with a polyanion and the crystallinity of the conductive polymer is 20% or less. The solid electrolyte is formed by transpiring a solvent from the conductive polymer dispersion. The conductive polymer dispersion is poly(3,4-ethylenedioxythiophene) doped with a polyanion and is formed by transpiring the conductive polymer with the crystallinity of 20% or less.
An alignment property between a mount portion to which a lens unit is mounted and the lens unit is eliminated, and the degree of freedom in selecting and designing the lens unit and the mount portion is increased by an alignment function of an attachment portion. A sensor module of the present disclosure includes a lens unit, a base portion on which a sensor for receiving light from the lens unit is installed, a mount portion installed on the base portion, and an attachment portion that aligns the mount portion with the lens unit.
A ToF system is configured to apply light to an object and find distance information by receiving reflected light from the object. The ToF system includes a light source portion configured to apply the light to the object; a light receiver configured to receive the reflected light from the object; an information processing unit configured to acquire signal amount information from a received light output of the light receiver and calculate light amount information for making the signal amount information arise at a predetermined value or within a predetermined range of a lower limit threshold to an upper limit threshold; and a light amount control part configured to control a light amount of the light source portion using the light amount information.
G01S 7/4914 - Detector arrays, e.g. charge-transfer gates
G01S 17/32 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
6.
SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD
The present invention provides a solid electrolytic capacitor in which a conductive polymer and an electrolyte solution are used in combination, an increase in equivalent series resistance in a high-temperature environment is suppressed even if fibrillated fibers are included as a separator, and a decrease in electrostatic capacity is suppressed. This solid electrolytic capacitor is provided with: an anode body that has a dielectric film; a cathode body that faces the anode body; and an inter-electrode layer that is interposed between the anode body and the cathode body. The inter-electrode layer includes a conductive polymer, an electrolyte solution, and a separator. The separator contains fibrillated fibers and has an air permeation resistance of 5.8 (sec/100 mL) or less. The electric conductivity of the inter-electrode layer is not less than 55 (S) but less than 180 (S).
Provided are a solid electrolytic capacitor that has a low equivalent series resistance, and a manufacturing method. This solid electrolytic capacitor comprises: an anode body that has a dielectric film; a cathode body that faces the anode body; and a solid electrolyte layer that is interposed between the anode body and the cathode body. A capacitor element is obtained by superimposing the anode body and the cathode body with the solid electrolyte layer interposed therebetween. The solid electrolyte layer contains a conductive polymer and tannic acid. The content ratio of the conductive polymer (A) and the tannic acid (B) is A:B=100:185 or more by weight ratio, and the weight of the conductive polymer relative to the volume of the capacitor element is 0.003 mg/mm3to 0.018 mg/mm3. The solid electrolyte layer is formed using a conductive polymer solution in which conductive polymer particles are dispersed. The conductive polymer solution contains the conductive polymer and tannic acid at the aforementioned weight ratio.
A capacitor includes: a cathode foil including a carbon layer disposed at a surface of a base material foil; and a lead-out terminal including a flat portion connected to the cathode foil by stitch connection at a stitch connection portion, and a thickness of the stitch connection portion is equal to or less than a total thickness of a thickness of the cathode foil and a thickness of the flat portion.
POSITIVE ELECTRODE BODY OF SOLID ELECTROLYTIC CAPACITOR, SOLID ELECTROLYTIC CAPACITOR, METHOD FOR MANUFACTURING POSITIVE ELECTRODE BODY OF SOLID ELECTROLYTIC CAPACITOR, AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC CAPACITOR
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
Habazaki Hiroki
David Alberto Quintero Giraldo
Nagahara Kazuhiro
Tanaka Atsushi
Koseki Kazuya
Nakayama Yuki
Abstract
Provided are: a positive electrode body of a solid electrolytic capacitor that has a high withstand voltage and a low leakage current; a solid electrolytic capacitor; a method for manufacturing the positive electrode body of the solid electrolytic capacitor; and a method for manufacturing the solid electrolytic capacitor. This positive electrode body comprises: a valve action metal substrate; and a dielectric oxide film on the valve action metal substrate. The dielectric oxide film comprises: a void layer on a surface layer side of the dielectric oxide film; and a void repair layer on the side of the dielectric oxide film that interfaces with the valve action metal substrate. This positive electrode body is formed by first chemical conversion processing, void introduction processing, and second chemical conversion processing. In the first chemical conversion processing, a prescribed chemical conversion voltage is applied to the valve action metal substrate. In the void introduction processing, the positive electrode body is immersed in one or more of an acidic solution, an alkaline solution, and pure water. In the second chemical conversion processing, a chemical conversion voltage lower than that of the first chemical conversion treatment is applied.
A camera module includes an imaging unit including a holder holding a lens unit including a flange portion being at right angles to an optical axis, a front case to which the lens unit is fixed, and a rear case including a prop portion supporting the lens unit with the flange portion, the imaging unit being fixed by the flange portion put between the prop portion and the front case, the rear case including a buffer region configured to absorb a unit length of the imaging unit.
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
B60R 1/23 - Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
B60R 11/04 - Mounting of cameras operative during driveArrangement of controls thereof relative to the vehicle
G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof
11.
SOLID ELECTROLYTIC CAPACITOR AND PRODUCTION METHOD
Provided are: a solid electrolytic capacitor that realizes a high withstand voltage while maintaining the feature of a low equivalent series resistance; and a method for producing this solid electrolytic capacitor. A separator is interposed between the anode and cathode. The separator holds conductive polymer particles and a layer of conductive polymer particles is interposed between the anode and cathode. The separator comprises manila fiber, esparto fiber, or rayon fiber, and has an air permeation resistance of at least 0.35 [s/100 mL]. The production of this solid electrolytic capacitor comprises: an element formation step for forming an element having an anode, a cathode, and a separator, by causing a cathode and anode having a dielectric film to face each other via an interposed separator; and a solid electrolyte layer formation step for impregnating the element with a conductive polymer dispersion in which conductive polymer particles are dispersed.
An electrolytic capacitor with low ESR even in the high frequency range, and the manufacturing method thereof are provided. The solid electrolytic capacitor includes anode foil, a cathode body, and an electrolyte layer. The anode foil id formed of valve action metal, and dielectric oxide film is formed on a surface thereof. The cathode body includes cathode foil formed of valve action metal and a conductive layer formed a surface of the cathode foil. The electrolyte layer intervenes between the anode foil and the cathode foil, and includes electrolytic solution and conductive polymers. The electrolytic solution includes phosphoric acid compound having alkyl groups with the carbon number of 1 to 10.
An electrolytic capacitor in which the transpiration of the electrolytic solution is suppressed even under the high-temperature environment is provided. The electrolytic capacitor comprising: a capacitor element having anode foil, cathode foil, electrolytic solution, and a solid electrolyte layer; a casing housing the capacitor element therein; and a sealing body sealing the casing, in which the sealing body includes butyl rubber, and the electrolytic solution includes glycerin, diglycerin, or both of 60 wt % or more relative to the solvent in the electrolytic solution.
Provided are a solid electrolytic capacitor having good frequency characteristics, and a method for manufacturing the same. An anode foil has an expanded layer formed on a foil surface, a dielectric film formed on the expanded layer, and a pseudo boehmite film formed on the dielectric film. A conductive polymer is contained at 50% or more in the bottom of the expanded layer, with respect to the content in the surface layer of the expanded surface layer. For this solid electrolytic capacitor, included are: a step for forming an expanded surface layer on an anode foil; a step for, after performing the step regarding the expanded surface, forming a pseudo boehmite film on the anode foil; a step for forming an oxide film on the anode foil so that the pseudo boehmite film remains on a dielectric film; and a step for forming a layer of a conductive polymer by causing a conductive polymer dispersion liquid containing the conductive polymer and a high boiling point solvent to adhere to at least the anode foil and to dry the same, so that the conductive polymer is adjusted to be contained at 50% or more in the bottom part of the expanded surface layer, with respect to the content in the surface layer of the expanded surface layer.
Provided are an electrolytic solution for an electric double layer capacitor and an electric double layer capacitor, in which a solvent does not decompose even when said electrolytic solution is used under a high voltage of 3.0 V or more, and an electrostatic capacity can be realized even in a low temperature environment such as -30°C. The electrolytic solution used in the electric double layer capacitor contains sulfolane and a carboxylic acid ester as a solvent. The carboxylic acid ester has an annular carbon skeleton and two or more ester bonds, such as a cyclohexanedicarboxylic acid diester and a cyclohexanetricarboxylic acid triester.
Provided are a surface mounting type electronic component mounting module using a bus bar, wherein the heights of solder mounting surfaces of a laminated bus bar of an anode and a laminated bus bar of a cathode are aligned to enable the use of reflow solder, and a more space-saving and miniaturized electronic component mounting module without lowering electrical characteristics. An electronic component mounting module is provided with a bus bar laminate in which a first bus bar and a second bus bar, each of which is provided with a region for soldering an external terminal of an electronic component, are laminated in an insulated manner, wherein the first bus bar is provided with an opening, the second bus bar is provided with a convex body projecting toward the first bus bar side and including a region for soldering, the convex body of the second bus bar is arranged at a position corresponding to the opening, the region for soldering the first bus bar and the region for soldering the convex body are set to have the same height as to such an extent that an external terminal of the electronic component by reflow soldering can be soldered, a plurality of electronic components to which the external terminals are soldered are provided on the first bus bar side, and the plurality of electronic components are connected to one convex body by external terminals of the same polarity.
A method for producing a Fe-based nanocrystalline alloy magnetic core, the method including: an oxide film forming step of subjecting a magnetic core material in which a ribbon of a nanocrystallizable Fe-based alloy is wound to heat treatment under an oxidizing atmosphere; and a nanocrystallizing step of subjecting the magnetic core material that underwent the oxide film forming step to heat treatment under a non-oxidizing atmosphere to perform nanocrystallization of the nanocrystallizable Fe-based alloy; wherein the highest temperature of the heat treatment at the oxide film forming step is a temperature of lower than a crystallization start temperature of the nanocrystallizable Fe-based alloy, and wherein the highest temperature of the heat treatment at the nanocrystallizing step is a temperature of equal to or higher than the crystallization start temperature of the nanocrystallizable Fe-based alloy.
Provided are an electrolyte capacitor having an enhanced electrolyte loss-preventing effect, and a method for manufacturing the same. An electrolyte layer is interposed between an anode body and a cathode body. The electrolyte layer includes a solid electrolyte layer and an electrolyte. The anode body, the cathode body, and the electrolyte layer are housed in a case, and at least a part of the opening side of the case is covered with a resin member. The electrolyte contains glycerin that accounts for 30 wt% or more of the total amount of solvent.
ALUMINUM ELECTROLYTIC CAPACITOR FOR LIQUID IMMERSION COOLING, METHOD FOR COOLING ALUMINUM ELECTROLYTIC CAPACITOR, AND METHOD FOR COOLING ELECTRONIC APPARATUS
This aluminum electrolytic capacitor for liquid immersion cooling is to be subjected to cooling in a cooling liquid, and comprises an aluminum electrolytic capacitor element, and a resin member for suppressing infiltration of the cooling liquid into the aluminum electrolytic capacitor. The cooling liquid is at least one selected from the group consisting of hydrocarbon-based refrigerants and silicone oil-based refrigerants.
Provided are a method for manufacturing an electrode foil that is easy to bend smoothly during winding, and a method for manufacturing a wound capacitor. A method for manufacturing an electrode foil 1 includes a surface area expansion step (S01) for forming an expanded surface area portion on the surface of a foil having having a strip shape, and a division step (S03, S06) for forming, so as to extend in the width direction of the foil strip, a plurality of cracks 4 that divide the expanded surface area portion 3. The division step (S03, S06) is performed multiple times to increase the depth of the cracks 4 over multiple treatments.
A capacitor (2) comprises a cathode foil (6) and a lead-out terminal (4). The cathode foil includes: a foil body (16) that has a substrate foil (12) and a carbon layer (14) formed on said substrate foil; a through-hole (18); and a foil piece (20) that extends from an edge part (22) of the through-hole and that is superposed on the foil body. The lead-out terminal is connected to the cathode foil and includes: a flat portion (28) that is mounted on a terminal mounting surface of the cathode foil; and a terminal piece (26) that extends from the flat portion and passes through the through-hole so as to be superposed on the opposite surface of the cathode foil from the terminal mounting surface. The foil piece has, at an outer edge thereof, an exposed-substrate end surface (24) where the substrate foil is exposed, and a portion of the exposed-substrate end surface of the foil piece that is disposed between the terminal piece and the foil body is in contact with the terminal piece.
Provided is an electrolytic capacitor which is unlikely to cause variation in electrostatic capacity over time. This electrolytic capacitor comprises: a positive electrode body; a negative electrode body having a carbon layer laminated on the surface thereof; and an electrolytic solution. The electrolytic solution contains a monocarboxylic acid or a dicarboxylic acid having eight or more carbon atoms.
Provided are a conductive polymer dispersion liquid for achieving lower ESR of a solid electrolytic capacitor, a method for producing the conductive polymer dispersion liquid, and a method for producing the solid electrolytic capacitor. The conductive polymer dispersion liquid contains: a conductive polymer which is polyethylene dioxythiophene doped with polystyrene sulfonate; a dispersion medium; and an additive. The amount x (wt%) of the conductive polymer and the amount y (vol%) of the additive are within the range surrounded by the following relational formulae (1)-(4) in an additive addition step. (1): y=-29x+100 (2): y=-34x+83 (3): x=1 (4): y=5
For example, an object of the present disclosure is to provide a separator suitable for a capacitor including a negative electrode foil in which a carbon layer is formed, or to provide a capacitor including this separator.
For example, an object of the present disclosure is to provide a separator suitable for a capacitor including a negative electrode foil in which a carbon layer is formed, or to provide a capacitor including this separator.
For example, a capacitor (2) includes a positive electrode foil (12), a negative electrode foil (14), and a separator (16) disposed between the positive electrode foil and the negative electrode foil, wherein the negative electrode foil includes a carbon layer (20), and the separator is in contact with the carbon layer and has a density [symbol: ρ, unit: g/cm3] satisfying the following formula:
For example, an object of the present disclosure is to provide a separator suitable for a capacitor including a negative electrode foil in which a carbon layer is formed, or to provide a capacitor including this separator.
For example, a capacitor (2) includes a positive electrode foil (12), a negative electrode foil (14), and a separator (16) disposed between the positive electrode foil and the negative electrode foil, wherein the negative electrode foil includes a carbon layer (20), and the separator is in contact with the carbon layer and has a density [symbol: ρ, unit: g/cm3] satisfying the following formula:
ρ
≥
4
.
0
×
1
0
-
3
×
WPA
For example, an object of the present disclosure is to provide a separator suitable for a capacitor including a negative electrode foil in which a carbon layer is formed, or to provide a capacitor including this separator.
For example, a capacitor (2) includes a positive electrode foil (12), a negative electrode foil (14), and a separator (16) disposed between the positive electrode foil and the negative electrode foil, wherein the negative electrode foil includes a carbon layer (20), and the separator is in contact with the carbon layer and has a density [symbol: ρ, unit: g/cm3] satisfying the following formula:
ρ
≥
4
.
0
×
1
0
-
3
×
WPA
Herein, WPA is the amount of carbon per square centimeter of the separator [unit: μg/cm2].
The present invention suppresses deterioration of the electrostatic capacitance of a solid electrolytic capacitor comprising a solid electrolyte layer and an electrolyte in a low temperature environment. The solid electrolytic capacitor comprises an anode foil, a cathode foil, a solid electrolyte layer containing an electrically conductive polymer, and an electrolyte. The solid electrolyte layer, the electrolyte, or both contain an aromatic compound having a HOMO energy level of –9.35 eV or greater and having one or more hydroxy group.
The present disclosure provides an electrolytic capacitor for middle or high voltage application of 160 V or more, which can suppress the total amount of gas generated inside the electrolytic capacitor. An electrolytic capacitor includes anode foil on which dielectric oxide film is formed, and a cathode body. The cathode body includes cathode foil formed of valve action metal and a carbon layer formed on the cathode foil. The anode foil and the cathode body have capacitance so that when capacitance X of the anode foil per unit area is 1, ratio of capacitance Y of the cathode body per the same unit area is equal to or more than 10.
Provided is a hybrid type solid electrolytic capacitor in which a high withstand voltage and excellent capacitor characteristics are realized. This solid electrolytic capacitor comprises a capacitor element. The capacitor element comprises: an anode containing a valve action metal; a cathode opposing the anode; and an electrolytic layer that is interposed between the anode and the cathode, and that includes an electrolytic solution and a solid electrolyte. The anode has, on the surface thereof, a dielectric coating film having a withstand voltage of 300V or higher. The electrolytic solution includes a solute of 0.08-0.34 mol/kg, and 1-10 wt% of water in relation to the total electrolytic solution included in the capacitor element.
The present disclosure provides an electrolytic capacitor in which an increase in the ESR is suppressed even in the high-temperature environment, a cathode body in the electrolytic capacitor, and a manufacturing method of the electrolytic capacitor. The electrolytic capacitor includes an anode foil, a cathode body, and electrolytic solution. The anode foil is formed of valve metal and has dielectric oxide film on a surface of the foil. The cathode body includes cathode foil formed of valve metal and a carbon layer laminated on the cathode foil. An interfacial resistance between the cathode foil and the carbon layer is 1.1 mΩ·cm2 or less.
An electrolytic capacitor that can suppress a decrease over time of capacity, a cathode body included in the electrolytic capacitor, and a production method of the electrolytic capacitor are provided. The electrolytic capacitor includes an anode foil, a cathode body, and electrolytic solution. The anode foil is formed of valve metal and has dielectric oxide film formed on a surface of the foil. The cathode body includes cathode foil formed of valve metal and a carbon layer laminated on the cathode foil. An interfacial resistance between the cathode foil and the carbon layer is 1.8 mΩ·cm2 or less.
Provided are a power storage device having good rate characteristics, a plastic crystal-type solid electrolyte used for this power storage device, and a method for manufacturing this solid electrolyte. The solid electrolyte includes a plastic crystal, a lithium salt, and a carbonate polymer or a derivative thereof. The carbonate polymer or a derivative thereof is contained in the solid electrolyte so that a proportion of a monomer unit of the carbonate polymer or a derivative thereof is 293 mol % or more and 782 mol % or less relative to the plastic crystal, and the lithium salt is contained in the solid electrolyte at a proportion of 75 mol % or more relative to the plastic crystal.
A camera module includes, for example, a light source, a ToF sensor configured to detect reflected light from a subject that receives light from the light source, and a heat conduction member that conducts heat of the light source to the ToF sensor.
H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
H02H 5/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
Provided is a solid electrolytic capacitor in which ESR changes due to thermal shock are inhibited, and a manufacturing method. The solid electrolytic capacitor comprises an anode body, a cathode body, and an electrolyte layer. The anode body includes a valve metal, and a dielectric film is formed on the surface thereof. The cathode body faces the anode body. The electrolyte layer is interposed between the anode body and the cathode body, and includes an electrolyte solution and a conductive polymer. The electrolyte solution includes an aliphatic dicarboxylic acid whose acid dissociation constant pKa=4.52 or greater, and the conductive polymer has a D50 of 50 nm or less in a particle size distribution.
A capacitor (2) comprises: a negative electrode foil (6) including a carbon layer (14) disposed on a surface of a substrate foil (12); and a lead-out terminal (4) connected by one or more connection portions (22) to the negative electrode foil by cold welding. At least one among a recommended voltage (V) recommended in rapid charging, rapid discharging, or rapid charging/discharging, an electrostatic capacitance (C) of the capacitor, and the number (N) of the connection portions disposed is adjusted such that the amount of energy (E) per connection portion represented by the following formula is 30 joules or less. E=CV2/2/N
According to the present invention, a decrease in the withstand voltage of foil, caused by cutting etc. is suppressed, a missing part of an oxide film caused in the foil by cutting etc. is repaired after formation of an energy storage element, and the withstand voltage of either the energy storage element or the energy storage device is improved. A manufacturing method according to an aspect of the present invention includes: a step for applying surface enlargement processing to foil consisting of a valve metal; a step for forming an oxide film layer (26) on the foil to which the surface enlargement processing has been applied; a step for cutting the foil on which the oxide film layer has been formed; and a step for forming, on a cut surface of the foil, a resin layer that has a withstand voltage equal to or greater than that of the oxide film layer.
Provide is an electrolytic capacitor for a middle-to-high voltage application that is equal to or higher than 100 V which suppresses the total amount of gas to be produced in the electrolytic capacitor. The anode foil of the electrolytic capacitor includes an enlarged surface portion provided with tunnel-shape pits formed from the foil surface in the thickness direction of the foil, and a dielectric oxide film formed on the surface of the enlarged surface portion. The cathode body of the electrolytic capacitor includes a cathode foil formed of a valve acting metal, and a carbon layer formed on the cathode foil.
PUBLIC UNIVERSITY CORPORATION NAGOYA CITY UNIVERSITY (Japan)
Inventor
Koseki Kazuya
Miyamoto Momoyo
Koike Masaki
Kiriyama Kahori
Hatai Tomohiro
Hirao Toshikazu
Amaya Toru
Abstract
Provided are a solid electrolytic capacitor having an increased capacity appearance rate, and a manufacturing method. A solid electrolyte layer of this solid electrolytic capacitor includes a first electroconductive polymer and a second electroconductive polymer. The first electroconductive polymer is a polymer of 3,4-ethylenedioxy thiophene in which a methylene phosphonic acid group is introduced into an ethylenedioxy skeleton. The second electroconductive polymer is a polymer of 3,4-ethylenedioxy thiophene or a derivative thereof. The first polymer of 3,4-ethylenedioxy thiophene in which a methylene phosphonic acid group is introduced into an ethylenedioxy skeleton is bonded to an anode body through a solid-electrolyte-layer-forming primary step. The second polymer of 3,4-ethylenedioxy thiophene or a derivative thereof is bonded to a layer of the first polymer or to the anode body through a solid-electrolyte-layer-forming secondary step, which is a separate step from the solid-electrolyte-layer-forming primary step and which takes place after the solid-electrolyte-layer-forming primary step.
The present disclosure provides a solid electrolytic capacitor and a production method thereof which improve the opportunity to repair defects and reduce leakage current. An electrolytic capacitor includes a capacitor element, a conductive polymer layer, and electrolytic solution. The capacitor element is formed by facing anode foil and a cathode body. The conductive polymer layer is formed by impregnating dispersion including a solvent and particles or powder of a conductive polymer. The electrolytic solution is impregnated in the capacitor element. Here, the cathode body includes cathode foil and a carbon layer. The cathode foil is formed of valve action metal, and an enlarged surface layer is formed on a surface thereof. The carbon layer is laminated on the enlarged surface layer and contacts with the conductive polymer layer at a surface opposite the enlarged surface layer. Also, the amount of the particles or powder of the conductive polymer included in the enlarged surface layer is less than the particles or powder of the conductive polymer included in the carbon layer at the surface-layer side facing the conductive polymer layer.
Included are: a cylindrical body (cylindrical portion 16) provided with a shaft portion (18); and a first valve body (11) that is in close contact with the shaft portion to close an opening portion (22) of the cylindrical body, and is separated from the shaft portion when pressure (P) in the cylindrical body rises to a threshold (Pth) or higher by gas that has entered the cylindrical body, to release the gas from the cylindrical body to the outside. The valve body includes a closing portion (40) that receives the pressure (P) of the gas in the cylindrical body. The pressure received by the closing portion (40) serves as a valve opening force. As a result, the discharge characteristics of the gas filling a case are improved to enhance a pressure regulation function.
Provided are: a method for producing lithium-vanadium oxide crystals that can save energy and have favorable rate characteristics; lithium-vanadium oxide crystals having favorable rate characteristics; an electrode material; and a power storage device. The method comprises: a step for preparing water or a water-containing mixed solution; a step for preparing an aqueous solution the pH of which is adjusted to at least 5 by dissolving a vanadium source and a lithium source in the water or water-containing mixed solution; and a drying step for vaporizing a liquid from the aqueous solution to precipitate lithium-vanadium oxide crystals. The precipitated crystals include primary particles having a diameter of at most 50 nm and pores having a peak at 10 nm or less in the pore distribution.
H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
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
Provided is a solid electrolytic capacitor combining low ESR with high withstand voltage. The solid electrolytic capacitor includes a capacitor element comprising an anode foil, a cathode object, and an electrolyte. The anode foil has a surface with an increased area due to tunnel-shaped etching pits and has a dielectric coating film on the surface. The cathode object faces the anode foil. The electrolyte includes a solid electrolyte layer comprising an electroconductive polymer. The weight of the electroconductive polymer is 11 mg/cm3 or less per unit volume of the capacitor element.
The purpose of the present invention is to provide a solid electrolytic capacitor that achieves both low ESR and high withstand voltage. The solid electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and a capacitor element having an electrolyte. In the positive electrode foil, the surface is enlarged with tunnel-shaped etching pits, and there is a dielectric film on the surface. The negative electrode body faces the positive electrode foil. The electrolyte includes a solid electrolyte layer that contains a conductive polymer. This solid electrolyte layer has a weight of 250 mg/cm3 or less per unit volume of the capacitor element.
Provided are: a manufacturing method for increasing a capacity appearance rate of a solid electrolytic capacitor; and a solid electrolytic capacitor with an increased capacity appearance rate. A wound body 1, in which a positive electrode foil and a negative electrode foil, on which dielectric films are formed, are wound facing each other, is securely wrapped with a hydrophobic adhesive tape 2. A conductive polymer is formed using a conductive polymer liquid in which the conductive polymer is dispersed or dissolved and which has a viscosity of 10 mPa·s to 60 mPa·s. That is, the conductive polymer is attached to the inside of the wound body 1 by immersing the wound body 1 securely wrapped with the adhesive tape 2 in a conductive polymer liquid having a viscosity of 10 mPa·s to 60 mPa·s.
This electricity storage device comprises: an electricity storage element in which an electrode portion having end surfaces which are of a laminated and wound electrode foil and are different from each other in polarity; a case having a storage portion that internally stores the electricity storage element; and a current collector component disposed on a bottom portion side of the storage portion and provided with a first connection surface portion that is connected to the electrode portion formed on one end surface of the electricity storage element and a second connection surface portion that is connected to an inner wall surface of the case in the storage portion. This makes it possible to increase connectivity by securing a large number of connection areas for the current collector member to the electricity storage element and the case and to achieve simpler manufacturing work for the electricity storage device.
H01G 11/82 - Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
The present invention provides: a production method which enhances the capacitance appearance ratio of a solid electrolytic capacitor; and a solid electrolytic capacitor which has an enhanced capacitance appearance ratio. According to the present invention, winding of a wound body 1 which is obtained by winding a negative electrode foil and a positive electrode foil that is provided with a dielectric oxide coating film, the negative electrode foil and the positive electrode foil facing each other, is stopped by means of a hydrophobic adhesive tape 2. A lead terminal 3, wherein a flat part 33, a round bar part 32 and a lead-out line 31 are linked in series, is connected to the positive electrode foil and the negative electrode foil at the flat part 33. The wound body 1 is immersed in a conductive polymer liquid to at least a half of the height of the round bar part 32 of the lead terminal 3, or to 1 mm or more from one end face 1a of the wound body 1; and a conductive polymer is adhered to at least a half of the height of the round bar part 32, or to 1 mm or more from the end face 1a of the wound body 1 in addition to the inside of the wound body 1.
NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY (Japan)
K & W LIMITED (Japan)
Inventor
Minato Yoshihiro
Igari Shuto
Ishimoto Shuichi
Naoi Katsuhiko
Okita Naohisa
Harada Yuta
Naoi Wako
Abstract
In this electrode material which includes lithium vanadium phosphate granulated bodies, favorable discharging characteristics are achieved without deteriorating volumetric energy density. The electrode material includes lithium vanadium phosphate granulated bodies. The lithium vanadium phosphate granulated bodies include primary particles of lithium vanadium phosphate and a carbon coat coating the surfaces of the primary particles. It is favorable that the primary particles are bonded to at least a portion of the surrounding primary particles without particle boundaries so as to be continuous.
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
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
A detection system includes an imaging unit configured to acquire in advance a first distance image indicating a background and acquire a second distance image including at least the background and a target object, and a processing unit configured to calculate a first virtual volume indicating the background from the first distance image, calculate a second virtual volume indicating the target object from the second distance image, and compare the first virtual volume with the second virtual volume to detect the target object.
A cathode and an electrolytic capacitor including the cathode which can suppress production of hydrogen gas are provided. The cathode of the electrolytic capacitor includes cathode foil formed of valve action metal and a conductive layer formed on a surface of the cathode foil. A natural immersion potential of the cathode foil when immersed in an electrolyte solution is at a higher side than a natural immersion potential of reference cathode foil formed of the valve action metal with purity of 99.9%.
A detection system includes an imaging unit configured to acquire a distance image indicating a distance to a target object, and a processing unit configured to divide pixels included in the distance image into blocks according to a distance relationship, and detects a state of the target object by comparing ratios of pixels included in the respective blocks.
The purpose of the present invention is to increase the proportion of a sealing member covered by a resin layer, and to inhibit leakage of the resin to the outside of a pedestal, for example. A capacitor body (4) includes an external case (12), a sealing member (16), and a plurality of terminal leads (18-1, 18-2). A pedestal (6) includes: a plurality of insertion holes (36-1, 36-2) which are installed in the capacitor body on the sealing member side, and through which the respective terminal leads are inserted; a plurality of protrusions (38-1, 38-2) surrounding the respective through-holes; a resin injection hole (26) used for the injection of a resin (60); a through-hole (28) used for the confirmation of the injected resin; and a shielding part (30) surrounding the through-hole. A resin layer (8) is disposed between the pedestal and the sealing member. The resin layer extends to at least a portion of a gap between the sealing member and a top surface (30-1) of the shielding part.
Provided is a solid electrolytic capacitor that has low ESR even with a conductive layer formed on a negative electrode foil. A solid electrolytic capacitor according to the present invention comprises: a positive electrode body that has a dielectric coating film; a negative electrode body; and an electrolyte layer that is interposed between the positive electrode body and the negative electrode body. The negative electrode body includes: a negative electrode foil that comprises a valve metal; and a conductive layer that is formed on the negative electrode foil. The electrolyte layer includes a conductive polymer and contacts at least the conductive layer. The negative electrode foil has a foil capacity of at least 20 μF/cm2.
The present invention includes a power generation apparatus (power generation panel 4), a power storage apparatus (power storage device 8), a charging circuit (circuit unit 14-2) that, if the generated power is below a threshold value, charges the power storage apparatus with the generated power, and a discharging circuit (14-3) that discharges the power storage apparatus if the charging voltage of the power storage apparatus reaches a prescribed value, wherein there are: a first output mode for supplying generated power from the power generation apparatus to a first power conversion unit (power conditioner 6-1) if the generated power is the threshold value or higher; a charging mode for charging the power storage apparatus with the generated power if the generated power is below the threshold value; and a second output mode in which, when the charging voltage has reached a prescribed value, the discharged power of the power storage apparatus and the generated power below the threshold value of the power generation apparatus are added and supplied to a second power conversion unit (power conditioner 6-2).
The purpose of the present disclosure is to provide a stitching connection structure suited to cathode foil that includes a carbon layer, for example. Cathode foil (6) includes base-material foil (12) and a carbon layer (14) formed onto the base-material foil, and has a through hole (18). A lead terminal (4) includes: a flat section (32) that is carried on a terminal-carrying surface of the cathode foil; and a terminal strip (34) that is formed on the flat section and that passes through the through hole and is led out to the surface on the opposite side from the terminal-carrying surface of the cathode foil and is folded over. The lead terminal is connected to the cathode foil by the cathode foil being sandwiched between the flat section and the terminal strip. The cathode foil has, at a tip-end portion of a foil strip (20) extending from an edge portion (22) of the through hole, a base-material exposed surface (28) in which the base-material foil is exposed. The base-material exposed surface is disposed between a root (38) and a tip (40) of the terminal strip, and connects with the terminal strip.
The present invention provides an electrolytic capacitor using an electrically conductive polymer and having even better capacity, and a manufacturing method. The electrolytic capacitor comprises an electrolyte layer containing the electrically conductive polymer and a plastic crystal. The manufacturing method for this electrolytic capacitor includes an electrolyte layer forming step for forming the electrolyte layer between a pair of electrodes. An electrolyte forming step includes a polymer attachment step for attaching the electrically conductive polymer to one or both of the pair of electrodes, and a plastic crystal attachment step for attaching the plastic crystal to one or both of the pair of electrodes.
An electric double layer capacitor that can suppress the generation of gas and achieve long lifetime is provided. A positive electrode and a negative electrode have a polarizable electrode layer including activated carbon, and electrolytic solution includes an aprotic solvent and quaternary ammonium salt. A value of an index D of this electric double layer capacitor calculated by the below formula using an amount W (meq/g) of total acidic surface functional group per a unit weight of activated carbon, initial capacity Z (F/g) per a unit weight of activated carbon, and specific surface area (m2/g) per a unit weight of activated carbon.
An electric double layer capacitor that can suppress the generation of gas and achieve long lifetime is provided. A positive electrode and a negative electrode have a polarizable electrode layer including activated carbon, and electrolytic solution includes an aprotic solvent and quaternary ammonium salt. A value of an index D of this electric double layer capacitor calculated by the below formula using an amount W (meq/g) of total acidic surface functional group per a unit weight of activated carbon, initial capacity Z (F/g) per a unit weight of activated carbon, and specific surface area (m2/g) per a unit weight of activated carbon.
D=(W/S)×(Z/S)×106 (Formula)
H01G 11/34 - Carbon-based characterised by carbonisation or activation of carbon
H01G 11/62 - Liquid electrolytes characterised by the solute, e.g. salts, anions or cations therein
H01G 11/60 - Liquid electrolytes characterised by the solvent
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
55.
ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING ELECTROLYTIC CAPACITOR
An electrolytic capacitor with improved connectivity between a cathode body including a carbon layer and a lead terminal, and a production method thereof are provided. The electrolytic capacitor 1 includes an anode body 2 having a dielectric oxide film 5 on a surface thereof, a cathode body 3 having a cathode foil 31 and a carbon layer 32 formed on the cathode foil 31, electrolytic solution 6 interposed between the anode body 2 and the cathode body 3, and a lead terminal 7 connected to each of the anode body 2 and the cathode body 3 by cold pressure welding. A maximum static friction coefficient of a surface of the carbon layer of the cathode body is 0.6 or more.
Provided is an electrolytic capacitor in which a nitro compound is efficiently used and which suppresses the total amount of gas that is generated in the electrolytic capacitor. The electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and an electrolyte. A dielectric oxide film is formed on the positive electrode foil. The negative electrode body has a reduction site on the surface thereof. The negative electrode body comprises a negative electrode foil that is made of a valve metal and a carbon layer that is layered on said negative electrode foil, and the carbon layer serves as the reduction site. The electrolyte is interposed between the positive electrode foil and the negative electrode body, and contains the nitro compound. The nitro compound is contained in the electrolyte at a proportion of 1.5 mg or less per 1 cm2 projected area of the negative electrode body.
The objective of the present disclosure is to improve the electrical conductivity of conductive polymers and to provide an electrolytic capacitor using conductive polymers with high electrical conductivity. The solid electrolytic capacitor uses the conductive polymer in which an index D derived by D=(B+C)/A is 4 or more based on an absorbance A at 585 nm, an absorbance B at 800 nm, and an absorbance C at 1200 nm in a light absorption spectrum of the conductive polymer.
This case for an electric power storage device comprises: a first valve unit that has a valve that opens when an internal pressure in a storage portion has exceeded a threshold value, the valve being provided, at a portion of a housing bottom portion that forms the storage portion, with a flat surface portion that is formed in a surface direction of the housing bottom portion and is constituted by a groove that is formed in the thickness direction of the housing bottom portion, the flat surface portion being formed having a predetermined area at the deepest position of the groove; and a second valve unit that has one end that is connected to the first valve unit and another end that is formed having a predetermined length in the outer peripheral direction of the storage portion, the second valve unit being provided with an inclined surface portion that alters the depth between the flat surface portion and the surface of the housing bottom portion. At least a plurality of the second valve unit are formed in different directions along the surface of the housing bottom portion, and an opening of the valve that faces the housing bottom portion has an opening width in a portion that is adjacent to the first valve unit that is greater than an opening width that is adjacent to the second valve unit. This makes it possible to restrict the operating range of the valve with respect to an increase in internal pressure in the case, and to control a state of discharge from the case interior when the valve is open.
The present invention provides: an electric double layer capacitor which is suppressed in gas generation; and a method for producing this electric double layer capacitor. This electric double layer capacitor is obtained by impregnating an element, which is obtained by winding a positive electrode and a negative electrode with a separator being interposed therebetween, with an electrolyte solution that contains sulfolane and a chain sulfone as solvents. The ratio Cp:Cn of the electrostatic capacitance Cp of the positive electrode to the electrostatic capacitance Cn of the negative electrode is set to (1.3 or more):1. The positive electrode is formed such that the electrode potential (vs Ag/Ag+) is within or in the vicinity of the range of +0.58 V to +0.78 V; and the negative electrode is formed such that the electrode potential (vs Ag/Ag+) is within the range of -2.42 V to -2.19 V. According to the present invention, an element is formed by winding a positive electrode and a negative electrode with a separator being interposed therebetween; and the element is impregnated with an electrolyte solution that contains sulfolane and a chain sulfone as solvents.
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
H01G 11/16 - Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against electric overloads, e.g. including fuses
H01G 11/60 - Liquid electrolytes characterised by the solvent
H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
60.
CONDUCTIVE CARBON, METHOD FOR PRODUCING SAME, METHOD FOR PRODUCING CONDUCTIVE CARBON MIXTURE CONTAINING SAID CONDUCTIVE CARBON, AND METHOD FOR PRODUCING ELECTRODE USING SAID CONDUCTIVE CARBON OR CONDUCTIVE CARBON MIXTURE
The present invention provides a conductive carbon which enables the achievement of an electricity storage device that has high energy density, while exhibiting improved charge/discharge cycle stability even during high voltage application. A conductive carbon according to the present invention is produced by a method which comprises: an oxidation step wherein a carbon starting material is subjected to an oxidation treatment, thereby obtaining an oxidation-treated carbon that spreads in a paste-like state when a pressure is applied thereto; and a heat treatment step wherein the oxidation-treated carbon is subjected to a heat treatment under a vacuum or in a non-oxidizing atmosphere. Since CO2 is separated from the oxidation-treated carbon during the heat treatment process, the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25° C. to 200° C. is smaller than the amount of CO2 generated from the oxidation-treated carbon in the temperature range of from 25° C. to 200° C. It is preferable that the heat treatment is carried out in such a manner that the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25° C. to 200° C. is within the range of from 0.015% by mass to 0.050% by mass of the entire conductive carbon.
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
H01G 11/38 - Carbon pastes or blendsBinders or additives therein
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
61.
ELECTROLYTE SOLUTION FOR ELECTROLYTIC CAPACITORS, AND ELECTROLYTIC CAPACITOR
Disclosed is an electrolytic capacitor which has a long life and which is provided with an electrolyte which is difficult to steam and disperse in butyl rubber used as a sealing member, and which suppresses evaporation volatilization of the electrolyte. An electrolytic capacitor is provided with a capacitor element having an anode foil, a cathode foil and a separator, an electrolytic solution containing a solvent and a solute, a case containing the capacitor element, and butyl rubber sealing the case, wherein the distance between the Hansen solubility parameter of the solvent and the Hansen solubility parameter of the butyl rubber is not less than 26.5, and the boiling point of the solvent is not less than 160 degrees celsius.
Provided is an electrode body that exhibits a good cathode side capacitance, and an electrolytic capacitor provided with this electrode body. The electrode body used for a cathode of the electrolytic capacitor has a cathode foil and a carbon layer. The cathode foil is made of a valve acting metal, and an enlarged surface layer is formed on the surface thereof. The carbon layer is formed on the enlarged surface layer. The interface between the enlarged surface layer and the carbon layer has an uneven shape.
A hybrid-type solid electrolytic capacitor which suppresses corrosive reaction even if chlorine ions are contaminated while suppressing deterioration of product characteristics. The solid electrolytic capacitor includes a capacitor element including an anode foil and a cathode foil facing each other and an electrolyte layer formed in the capacitor element. The electrolyte layer includes a solid electrolyte layer including a dopant and a conjugated polymer, and an electrolyte solution filled in air gaps in the capacitor element on which the solid electrolyte layer is formed. The electrolyte layer includes a cation component at a molecular ratio of 6 or less relative to 1 mol of a functional group which can contribute to a doping reaction of the dopant, and the electrolytic solution includes a sulfolane-based solvent.
Provided is an electrolytic capacitor having a good capacitance appearance rate. This electrolytic capacitor comprises: an anode foil having a dielectric oxidizing coat; a cathode foil facing the anode foil; a separator interposed between the anode foil and the cathode foil; a capacitor element that winds around the anode foil and the cathode foil via the separator; and an electrolyte impregnated into the capacitor element. The electrolyte contains polyoxyethylene glycerin. The anode foil has a band width of more than 37mm along the winding shaft of the capacitor element .
The present disclosure provides an electric double layer capacitor with an electrolyte layer which suppresses leakage current and has high ion conductivity. The electric double layer capacitor includes a pair of electrode bodies and an electrolyte layer. The electrode bodies have polarizable electrodes. The electrolyte layer includes ionic liquid plastic crystals.
The present invention resolves alignment between a lens unit and a mounting part for mounting the lens unit, and increases the freedom of selection and design with respect to the lens unit and the mounting part, through an alignment function of an attachment part. A sensor module of the present disclosure comprises: a lens unit (4); a platform (6) on which is disposed a sensor (20) for receiving light from the lens unit; a mounting part (8) which is disposed on the platform; and an attachment part (10) for aligning the mounting part and the lens unit.
G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
The present invention provides: a sealing body which is suppressed in thermal oxidation degradation; and an electrolytic capacitor which is provided with this sealing body. A sealing body according to the present invention seals an opening of a case in which a capacitor element, which is impregnated with an electrolyte solution and wherein a positive electrode foil that is provided with a dielectric oxide coating film and a negative electrode foil face each other, is contained. This sealing body is provided with an elastomer member that contains an elastomer such as a butyl rubber. The elastomer has an initial crosslinking density of 1.8 × 10-3 mol/g or more; and the content of the elastomer relative to the entire elastomer member is 30 wt% or less.
The present invention provides: an electric double layer capacitor which is suppressed in deterioration of the electrostatic capacitance over time even if γ-butyrolactone is used as a solvent; and a method for producing this electric double layer capacitor. This electric double layer capacitor is obtained by impregnating an element, which is obtained by winding a positive electrode and a negative electrode with a separator being interposed therebetween, with an electrolyte solution that contains γ-butyrolactone as a solvent. The electrostatic capacitance Cp of the positive electrode and the electrostatic capacitance Cn of the negative electrode satisfy Cp > Cn. The positive electrode is formed such that the electrode potential (vs Ag/Ag+) is within the range of +0.71 V to +0.62 V; and the negative electrode is formed such that the electrode potential (vs Ag/Ag+) is within the range of -1.99 V to -2.08 V. An element is formed by winding a positive electrode and a negative electrode with a separator being interposed therebetween; and the element is impregnated with an electrolyte solution that contains γ-butyrolactone as a solvent.
An Fe-based nanocrystalline soft magnetic alloy including an amorphous phase and crystal grains, wherein clusters are dispersed in the amorphous phase and the alloy has a composition represented by (Fe1-x-ySixAly)100-a-b-cMaM′bCuc (M represents one or more elements selected from the group consisting of Nb, W, Zr, Hf, Ti and Mo; M′ represents one or more elements selected from the group consisting of B, C and P; a, b and c represent 2.0≤a≤5.0, 3.0
Provided is an electrolytic capacitor in which the deformation of a sealing body is suppressed and the evaporation of an electrolytic solution is suppressed even in a high-temperature environment. The electrolytic capacitor comprises: a capacitor element having a positive electrode foil, a negative electrode foil, an electrolytic solution, and a solid electrolyte layer; a case containing the capacitor element; and a sealing body for sealing the case. The sealing body contains a butyl rubber. The electrolytic solution contains a solvent and an antioxidant. The solvent includes glycerin, diglycerin, or both. The antioxidant is water-soluble and has a benzene ring and two or more hydroxy groups in the molecular structure thereof.
Provided are an electrolytic solution for solid electrolytic capacitors and a solid electrolytic capacitor that suppress deterioration in capacitance under a low-temperature environment of a solid electrolytic capacitor provided with a solid electrolyte layer and an electrolytic solution. This electrolytic solution for solid electrolytic capacitors is included in a solid electrolytic capacitor together with electroconductive polymers wherein an electrolyte is constituted of the electroconductive polymers. The oxidation start potential is 0.22 V or lower. A solid electrolytic capacitor according to the present invention comprises: this electrolytic solution for solid electrolytic capacitors; a solid electrolyte layer containing electroconductive polymers; an anode foil; and a cathode foil.
1-x-yxy100-a-b-cabcc (I) (in the composition formula: M is at least one element selected from the group consisting of Nb, W, Zr, Hf, Ti and Mo; M' is at least one element selected from the group consisting of B, C and P; a, b and c, all of which are in atom%, are 2.0 ≤ a ≤ 5.0, 3.0 < b < 10.0 and 0 < c 3.0; x and y are 0.170 ≤ x ≤ 0.320 and 0.010 ≤ y ≤ 0.045; and 15.5 < x × (100 - a - b - c))
Provided are: a solid electrolytic capacitor configured to suppress an increase in ESR even after a thermal stress load; and a method for producing same. The solid electrolytic capacitor is provided with a pair of electrode foils, an electrolyte layer, and a compound having a functional group that has a pH buffering capacity. The pair of electrodes include a valve action metal, and the surface of one of the foils has a dielectric oxide film formed thereon. The electrolyte layer is interposed between the pair of electrode foils, and includes an electrolyte solution and electroconductive polymer. The compound having a functional group that has a pH buffering capacity adheres to some or all of the electrode foils. This production method comprises: an element assembly step for assembling a capacitor element by interposing the pair of electrode foils or additionally a separator; a compound adhesion step for, after the element assembly step, impregnating the capacitor element with a liquid agent containing the compound having a functional group that has a pH buffering capacity; and an electroconductive polymer adhesion step for, after the compound adhesion step, impregnating the capacitor element with a dispersion liquid of the electroconductive polymer.
The purpose of the present disclosure is to provide a stitch connection structure suitable for a cathode foil including a carbon layer, for example. A capacitor (2) comprises: a cathode foil (6) including a carbon layer (14) disposed on a surface of a base material foil (12); and a lead-out terminal (4) including a flat portion (18) connected to the cathode foil by stitch connection at a stitch connection portion (10). The thickness (T1) of the stitch connection portion is less than or equal to a total thickness (Tt) of the thickness (T2) of the cathode foil and the thickness (T3) of the flat portion.
H01G 9/00 - Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devicesProcesses of their manufacture
H01G 9/012 - Terminals specially adapted for solid capacitors
H01G 9/042 - Electrodes characterised by the material
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
75.
ELECTRONIC COMPONENT BASE, METHOD FOR PRODUCING SAME, AND ELECTRONIC COMPONENT
An electronic component base equipped with a groove section (14) for storing a lead terminal (8-1, 8-2), and an auxiliary terminal (16-1, 16-2) which is oriented in a direction which intersects the direction of the lead terminal, wherein the auxiliary terminal is equipped with a lead terminal receiver section (18-1), an interior region (18-3, 18-5, 18-6, 18-6') which is inside the base, and an exposed region (exposed region 18-2, 18-4, 18-4') which is exposed from the base, and the interior region is provided between the lead terminal receiver section and the exposed region. As a result, it is possible to increase the strength by which the auxiliary terminal is secured to the base, to improve the vibration resistance of an electronic component such as a capacitor, and to improve the reliability of an electronic component surface mount.
09 - Scientific and electric apparatus and instruments
Goods & Services
Telecommunication machines and apparatus; parts and
accessories for telecommunication machines and apparatus;
capacitors for telecommunication machines and apparatus;
coils for telecommunication machines and apparatus;
resistances for telecommunication machines and apparatus.
Provided is an electrolytic capacitor with a resin layer, in which an increase in ESR over time is suppressed. An electrolytic capacitor includes a capacitor element including an anode foil, a cathode foil, and electrolytic solution, a case housing the capacitor element, a sealing member sealing the case, and a resin layer arranged in the vicinity of the sealing member. The resin layer arranged in the vicinity of the sealing member includes epoxy resin composition including ester bond. On the other hand, for the electrolytic solution contained in the electrolytic capacitor, compound with hydroxy group is 45 wt % or less including 0 wt % in solvent.
The present invention improves the vibration resistance and impact resistance of a power storage device. This method has: a step for providing a thermal expansion member between a case and an element which is formed by winding an electrode foil and electrolytic paper; and a step for expanding the thermal expansion member.
09 - Scientific and electric apparatus and instruments
Goods & Services
Telecommunication machines and apparatus; parts and
accessories for telecommunication machines and apparatus;
capacitors for telecommunication machines and apparatus;
coils for telecommunication machines and apparatus;
resistances for telecommunication machines and apparatus.
80.
ELECTRONIC COMPONENT MOUNTING MODULE HAVING BUS BAR STACK, AND METHOD FOR MANUFACTURING SAME
The purpose of the present invention is to provide, for example: an electronic component mounting module of surface mount type using bus bars, wherein the height of solder mount surface is aligned between an anode bus bar and a cathode bus bar that are stacked, thereby enabling the use of reflow soldering; and an electronic component mounting module achieving more space savings and reduction in size without degrading electric characteristics. This electronic component mounting module comprises a bus bar stack in which a first bus bar and a second bus bar each comprising a region for soldering an external terminal of an electronic component are insulated and stacked. The first bus bar comprises an opening. The second bus bar comprises a protrusion protruding on the first bus bar side and including a soldering region. The protrusion of the second bus bar is disposed in a position corresponding to the opening. A soldering region of the first bus bar and the soldering region of the protrusion are disposed at a corresponding height such that the external terminal of the electronic component can be soldered by reflow soldering. The electronic component mounting module comprises a plurality of electronic components with external terminals soldered on the first bus bar side. The plurality of electronic components have the external terminals of the same polarity each connected to one protrusion.
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
A solid electrolytic capacitor with reduced leakage current is provided. An anode foil dielectric oxide film is formed, a lead terminal which is connected to the anode foil, a capacitor element including the anode foil, is formed in the capacitor element, and a solid electrolyte containing a conductive polymer, and a coating layer for elasticating a conductive polymer forming solution between the anode foil and the lead terminal by forming a solid electrolytic capacitor. Preferably, the coating layer is a solid-state electrolytic capacitor formed at least in the opposite portion of the external leading terminals to the anodal foil.
A capacitor (2) includes a capacitor main body (4) and a base (6). The capacitor main body includes an opening sealing member (14) attached to an opening of an outer package case (10), and a terminal lead (16-1, 16-2) led out from a first insertion through hole portion (17-1, 17-2) of the opening sealing member. The base is disposed on the side of the opening sealing member of the capacitor main body, and has a second insertion through hole portion (18-1, 18-2). For example, the base includes a first protruding portion (20) surrounding the second insertion through hole portion, so that the second insertion through hole portion of the base forms an insertion through hole. The opening distance on the side of the substrate mounting face of the insertion through hole is larger than the opening distance on the side of the capacitor main body of the insertion through hole.
Provided is an electrolytic capacitor in which an increase in ESR is suppressed even in high-temperature environments. The electrolytic capacitor comprises a positive electrode foil, a negative electrode body, a separator, and a solid electrolytic layer. The positive electrode foil has a dielectric oxide film that is made of a valve metal and that is formed on a foil surface. The negative electrode body has a negative electrode foil that is made of a valve metal, and a carbon layer that is layered on the negative electrode foil. The solid electrolytic layer includes an electrically conductive polymer that is held by the separator and that is doped with an acid component. The separator contains fibers which have a hydroxyl group, in which molecules are bonded to each other via a 1,4-glycosidic bond, and which are treated with alkali.
This power storage device comprises: a case (exterior case 4) having a housing portion (6); a power storage element (8) having electrode tabs (anode tabs 10 and cathode tabs 12) formed on winding end faces thereof, and housed in the housing portion; a seal member (18) disposed in the housing portion with a peripheral surface of the seal member (18) press-fitted on an inner wall surface of the case due to swaging (swaging portion 30) from the outer peripheral side of the case, the seal member (18) sealing an opening portion of the housing portion; a support plate (current collector plate 14) in contact with and supporting a surface of the seal member facing the bottom portion of the housing portion; and a support member (folder 20) disposed on one of surfaces of the seal member facing the opening portion of the housing portion, the support member pressing and supporting the seal member by engagement with an opening edge (36) of the case (vertical swaging portion 32) swaged toward the bottom portion of the housing portion. This stabilizes the state of seal of the case by the seal member against a pressure increase in the case.
H01G 11/82 - Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
H01G 11/84 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof
85.
SOLID ELECTROLYTE, ELECTRICITY STORAGE DEVICE AND METHOD FOR PRODUCING SOLID ELECTROLYTE
Provided are plastic crystal-type solid electrolyte having high ion conductivity and a power storage device using the solid electrolyte. The solid electrolyte contains a plastic crystal doped with an electrolyte. The plastic crystal contains two or more types of cations in total, at least one of which is selected from the group of imidazoliums and quaternary ammoniums.
A capacitor (2) includes a capacitor main body (4), a base (6), and a resin layer (8-1). The capacitor main body includes an outer package case (10), an opening sealing member (14) attached to an opening of the outer package case, and a terminal lead (16-1, 16-2) extending through the opening sealing member. The base is disposed toward the opening sealing member of the capacitor main body and includes an insertion through hole (18-1, 18-2) into which the terminal lead is inserted to be exposed on a mounting surface side, and a protruding portion (20) surrounding the insertion through hole. The resin layer is arranged at least between the base and the opening sealing member. The base and the resin layer are in contact with or spaced apart from each other without at least partly adhering to each other.
Provided is an electrolytic capacitor with a resin layer, in which an increase in ESR over time is suppressed. A electrolytic capacitor includes a capacitor element including an anode foil, a cathode foil, and electrolytic solution, a case housing the capacitor element, a sealing member sealing the case, and a resin layer arranged in the vicinity of the sealing member. The resin layer arranged in the vicinity of the sealing member includes epoxy resin composition without ester bond.
Provided are: a method for preparing a conductive polymer dispersion in which a conductive polymer having high electrical conductivity is dispersed; and a method for manufacturing a solid electrolytic capacitor having said conductive polymer. This method for preparing a conductive polymer dispersion comprises a step of adding a monomer which is a monomer unit of the conductive polymer, a dopant, an oxidizing agent, a salicylic acid or salicylate, and an inhibitor which inhibits a complexation reaction between the oxidizing agent and the salicylic acid. The oxidizing agent and the salicylic acid or salicylate are mixed in the presence of the inhibitor or simultaneously with the addition of the inhibitor. At least one of a positive electrode foil, a negative electrode foil, and a separator in a solid electrolytic capacitor is impregnated with said conductive polymer dispersion. Alternatively, after a process of assembling a capacitor element including a positive electrode foil and a negative electrode foil, the capacitor element is impregnated with said conductive polymer dispersion to manufacture a solid electrolytic capacitor.
The purpose of the present disclosure is, for example, to reduce residual stress from welding and thereby suppress cracking at a weld structure. A weld structure (2) comprises a first member (4) that has a first joining surface part (10), a second member (6) that has a second joining surface part (16), and a weld-solidified part (8) that is formed at the butted joining surface parts of the first member and the second member by welding. The weld-solidified part includes a first solidified part (20) that is on the outside and a second solidified part (22) that is on the inside.
Provided is a solid electrolytic capacitor that exhibits low equivalent series resistance even at high frequencies. The solid electrolytic capacitor comprises a positive electrode foil, a negative electrode foil, and an electrolyte layer. The positive electrode foil contains a valve metal, and a dielectric oxide film is formed thereupon. The negative electrode foil contains a valve metal, and faces the positive electrode foil. The electrolyte layer contains an electrically conductive polymer and an electrolyte solution, and is interposed between the positive electrode foil and the negative electrode foil. The electrolyte solution contains an aliphatic dicarboxylic acid and a phosphoric acid compound that has a butyl group, and the phosphoric acid compound is present in the amount of 32 mmol or less per 100 g of the electrolyte solution.
Provided are a solid electrolytic capacitor that exhibits low equivalent series resistance even at high frequencies, and a manufacturing method. The solid electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and an electrolyte layer. The positive electrode foil is composed of a valve metal, and a dielectric oxide film is formed on the surface thereof. The negative electrode body comprises: a negative electrode foil composed of a valve metal; and an electrically conductive layer formed on the surface of the negative electrode foil. The electrolyte layer is interposed between the positive electrode foil and the negative electrode foil, and contains an electrolyte solution and an electrically conductive polymer. The electrolyte solution contains a phosphoric acid compound having a C1-10 alkyl group.
Provided are a solid electrolyte for endowing a solid electrolytic capacitor with a high withstand voltage, a solid electrolytic capacitor using this solid electrolyte, an electroconductive polymer dispersion for forming the solid electrolytic capacitor, and method for producing the same. The solid electrolyte is formed by using a liquid dispersion of electroconductive polymer, and contains the electroconductive polymer in this liquid dispersion. The electroconductive polymer is polyanion-doped poly(3,4-ethylenedioxythiophene) or a derivative thereof. The electroconductive polymer has a crystallinity of 20% or less. The solid electrolyte is formed by evaporating off the solvent from the liquid dispersion of the electroconductive polymer. The liquid dispersion of the electroconductive polymer is produced by dispersing, in a solvent, an electroconductive polymer that is polyanion-doped poly(3,4-ethylenedioxythiophene) or a derivative thereof and that has a crystallinity of 20% or less.
Provided is a solid electrolyte capacitor in which both high dielectric strength and high capacity are achieved, and a method for manufacturing the solid electrolyte capacitor. The solid electrolyte capacitor is provided with an anode foil, a cathode foil opposite the anode foil, and an electrically conductive polymer disposed between the anode foil and the cathode foil. The anode foil comprises a large number of tunnel-shaped etching pits formed in an upper layer of the anode foil, a dielectric oxide film layer formed on the upper layer of the anode foil, and a pseudo boehmite layer formed on the upper layer of the anode foil and positioned closer to the surface side than the dielectric oxide film layer. The amount of the pseudo boehmite layer is 0.4 mg·cm-2to 1.8 mg·cm-2 inclusive.
Provided is an electrolytic capacitor with suppressed electrolyte evaporation, even in high-temperature environments. This electrolytic capacitor comprises: a capacitor element which has an anode foil, a cathode foil and an electrolyte; a case which accommodates the capacitor element; and a sealing member which seals the case. The sealing member contains a butyl rubber, and the electrolyte contains 60 wt% glycerol and/or diglycerol or more in a solvent of said electrolyte.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Capacitors for telecommunication apparatus; electric coils, magnetic coils and electromagnetic coils for telecommunication apparatus; electric resistors and variable resistors for telecommunication apparatus.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Capacitors for telecommunication apparatus; electric coils, magnetic coils, and electromagnetic coils for telecommunication apparatus; electric resistors and variable resistors for telecommunication apparatus.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric capacitors for telecommunication apparatus; electric coils for telecommunication apparatus; electric resistors for telecommunication apparatus
98.
METHOD FOR PRODUCING Fe-BASED NANOCRYSTALLINE ALLOY MAGNETIC CORE AND Fe-BASED NANOCRYSTALLINE ALLOY MAGNETIC CORE
The present invention is a method for producing an Fe-based nanocrystalline alloy magnetic core, said method including an oxide film forming step for heat-treating, in an oxidizing atmosphere, a magnetic core material in which a nanocrystallizable Fe-based alloy ribbon is wound, and a nanocrystallization step for carrying out nanocrystallization of the nanocrystallizable Fe-based alloy by heat-treating, in a non-oxidizing atmosphere, the magnetic core material after the oxide film forming step, wherein a maximum temperature of the heat treatment in the oxide film forming step is a temperature lower than the crystallization start temperature of the nanocrystallizable Fe-based alloy, and a maximum temperature of the heat treatment in the nanocrystallization step is a temperature greater than or equal to the crystallization start temperature of the nanocrystallizable Fe-based alloy.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
A storage device having excellent cycle lifetime, an electrode used in this storage device, and a production method of the electrode are provided. An electrode comprising an active material and a conductive carbon including oxidized carbon. A surface of the active material is covered by the conductive carbon. A Raman spectrum of the active material covered by the conductive carbon includes a peak intensity (a) derived from the active material and a peak intensity (b) of D-band derived from the conductive carbon. A peak intensity ratio (b)/(a) between the peak intensity (a) and the peak intensity (b) is 0.25 or more.
The present invention provides: a power storage device which has good rate characteristics; a plastic crystal solid electrolyte which is used for this power storage device; and a method for producing this solid electrolyte. This solid electrolyte contains a plastic crystal, a lithium salt, and a carbonate polymer or a derivative thereof. The carbonate polymer or a derivative thereof is contained in the solid electrolyte so that the ratio of the monomer unit of the carbonate polymer or a derivative thereof to the plastic crystal is from 293 mol% to 782 mol%; and the lithium salt is contained in the solid electrolyte at a ratio of 75 mol% or more relative to the plastic crystal.
