WO2014077225A1 - 活物質粒子、蓄電デバイス用正極、蓄電デバイスおよび活物質粒子の製造方法 - Google Patents
活物質粒子、蓄電デバイス用正極、蓄電デバイスおよび活物質粒子の製造方法 Download PDFInfo
- Publication number
- WO2014077225A1 WO2014077225A1 PCT/JP2013/080488 JP2013080488W WO2014077225A1 WO 2014077225 A1 WO2014077225 A1 WO 2014077225A1 JP 2013080488 W JP2013080488 W JP 2013080488W WO 2014077225 A1 WO2014077225 A1 WO 2014077225A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- positive electrode
- active material
- conductive polymer
- storage device
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/42—Powders or particles, e.g. composition thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
- H01M4/602—Polymers
- H01M4/606—Polymers containing aromatic main chain polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/026—Wholly aromatic polyamines
- C08G73/0266—Polyanilines or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Definitions
- the present invention relates to a high-performance active material particle for a positive electrode for an electricity storage device having a high energy density, a positive electrode for an electricity storage device and an electricity storage device using the active material particle, and a method for producing active material particles for a positive electrode for an electricity storage device.
- the electrode of the electricity storage device contains an active material having a function capable of inserting and removing ions.
- the insertion / desorption of ions of the active material is also referred to as so-called doping / dedoping, and the amount of doping / dedoping per certain molecular structure is called the doping rate (or doping rate).
- the doping rate or doping rate
- Electrochemically it is possible to increase the capacity of a battery by using a material having a large amount of ion insertion / desorption as an electrode. More specifically, lithium secondary batteries, which are attracting attention as power storage devices, use a graphite-based negative electrode that can insert and desorb lithium ions, and about one lithium ion is inserted per six carbon atoms. -Desorption and high capacity have been achieved.
- lithium secondary batteries a lithium-containing transition metal oxide such as lithium manganate or lithium cobaltate is used for the positive electrode, and a carbon material capable of inserting and removing lithium ions is used for the negative electrode.
- Lithium secondary batteries that face each other in an electrolytic solution have a high energy density, and thus are widely used as power storage devices for the electronic devices described above.
- the lithium secondary battery is a secondary battery that obtains electric energy by an electrochemical reaction, and has a drawback that the output density is low because the speed of the electrochemical reaction is low. Furthermore, since the internal resistance of the secondary battery is high, rapid discharge is difficult and rapid charge is also difficult. Moreover, since an electrode and electrolyte solution deteriorate by the electrochemical reaction accompanying charging / discharging, generally a lifetime, ie, a cycling characteristic, is not good.
- a lithium secondary battery using a conductive polymer such as polyaniline having a dopant as a positive electrode active material is also known (see Patent Document 1).
- a secondary battery having a conductive polymer as a positive electrode active material is an anion transfer type in which an anion is doped into the conductive polymer during charging and the anion is dedoped from the polymer during discharging. Therefore, when a carbon material that can insert and desorb lithium ions is used as the negative electrode active material, a cation-moving rocking chair type secondary battery in which cations move between both electrodes during charge and discharge cannot be configured. . That is, the rocking chair type secondary battery has the advantage that the amount of the electrolyte is small, but the secondary battery having the conductive polymer as the positive electrode active material cannot do so, and contributes to the miniaturization of the electricity storage device. I can't.
- a cation migration type secondary battery has also been proposed.
- a positive electrode is formed using a conductive polymer having a polymer anion such as polyvinyl sulfonic acid as a dopant, and lithium metal is used for the negative electrode (see Patent Document 2).
- JP-A-3-129679 Japanese Patent Laid-Open No. 1-132052
- the secondary battery is still not sufficient in performance. That is, this battery has a lower capacity density and energy density than a lithium secondary battery using a lithium-containing transition metal oxide such as lithium manganate or lithium cobaltate for the positive electrode.
- a lithium-containing transition metal oxide such as lithium manganate or lithium cobaltate for the positive electrode.
- the present invention has been made in order to solve the above-described problems in an electricity storage device such as a conventional lithium secondary battery, and has excellent energy density, and uses positive electrode active material particles for an electricity storage device.
- a positive electrode for an electric storage device an electric storage device, and a method for producing active material particles of the positive electrode for the electric storage device.
- the inventors of the present invention have made extensive studies in order to obtain a high-performance power storage device excellent in energy density.
- the present inventors paid attention to the active material particles used for the positive electrode for the electricity storage device, and further studied this.
- Increasing the content of the conductive auxiliary with respect to the conductive polymer improves the energy density.
- the conductive auxiliary is highly filled, it becomes difficult to knead the electrode material. Therefore, as a result of further experiments, the inventors of the present invention have an excellent energy density without using a high amount of conductive aid when using active material particles obtained by coating the surface of conductive polymer particles with a conductive aid. It was found that a high-performance power storage device can be obtained.
- the present invention is an active material particle for a positive electrode for an electricity storage device, containing a conductive polymer and a conductive auxiliary agent, wherein the conductive material particle is coated with the conductive auxiliary agent on the surface of the conductive polymer particle. Is the first gist.
- the present invention also relates to a positive electrode for an electric storage device using active material particles containing a conductive polymer and a conductive auxiliary agent, wherein the conductive auxiliary agent is coated on the surface of the conductive polymer particle.
- the positive electrode for use is a second gist.
- the present invention is an electricity storage device having an electrolyte layer, and a positive electrode and a negative electrode provided opposite to each other, the positive electrode being coated on the surface of the conductive polymer particles with the conductive auxiliary agent.
- the electricity storage device using the active material particles thus formed is a third aspect.
- this invention is a manufacturing method of the active material particle of the positive electrode for electrical storage devices containing a conductive polymer and a conductive support agent, Comprising: The said conductive polymer particle and a conductive support agent are used using a particle composite apparatus.
- a fourth aspect of the present invention is a method for producing active material particles, in which active material particles are produced by carrying out a shearing treatment to coat the surface of the conductive polymer particles with the conductive auxiliary agent.
- the active material particles of the present invention are formed by coating the surface of the conductive polymer particles with the conductive auxiliary agent, the power storage device positive electrode containing the active material particles and the power storage device using the same have high energy. Has a density.
- the conductive polymer is polyaniline or a derivative thereof, the energy density of the electricity storage device using the polymer is further improved.
- the conductive auxiliary agent can be uniformly and densely coated on the surface of the conductive polymer particles. And energy density is further improved.
- the active material particles used for the positive electrode for an electricity storage device of the present invention contain a conductive polymer and a conductive assistant, and are formed on the surface of the conductive polymer particles.
- the conductive assistant is coated.
- the active material particles of the present invention mean coated particles in which conductive polymer particles are used as the core and the surface is coated with a conductive additive.
- the active material particles of the present invention are used as a positive electrode 2 of an electricity storage device having an electrolyte layer 3 and a positive electrode 2 and a negative electrode 4 which are provided so as to face each other.
- 1 is a positive electrode current collector
- 5 is a negative electrode current collector.
- the positive electrode, the negative electrode, and the electrolyte layer will be described in order.
- the positive electrode is made of a positive electrode forming material containing active material particles obtained by coating the conductive aid on the surface of the conductive polymer particles.
- the conductive polymer serving as the nucleus of the active material particles of the present invention will be described.
- the conductive polymer is formed by inserting or leaving an ionic species from the polymer to compensate for the change in charge generated or lost by the oxidation or reduction reaction of the polymer main chain.
- a state with high conductivity is referred to as a doped state
- a state with low conductivity is referred to as a dedope state.
- Preferred examples of the conductive polymer include, for example, at least one proton acid anion selected from the group consisting of an inorganic acid anion, a fatty acid sulfonate anion, an aromatic sulfonate anion, a polymer sulfonate anion, and a polyvinyl sulfate anion.
- the polymer which has as a dopant is mention
- a polymer in a dedope state obtained by dedoping the conductive polymer can be given.
- the conductive polymer examples include polyacetylene, polypyrrole, polyaniline, polythiophene, polyfuran, polyselenophene, polyisothianaphthene, polyphenylene sulfide, polyphenylene oxide, polyazulene, poly (3,4-ethylenedioxythiophene), These substituted polymers are exemplified.
- polyaniline, polyaniline derivatives, polypyrrole, and polypyrrole derivatives are preferably used, and polyaniline and polyaniline derivatives are more preferably used.
- the polyaniline is a polymer obtained by electrolytic polymerization or chemical oxidative polymerization of aniline
- the polyaniline derivative is, for example, a polymer obtained by electrolytic polymerization or chemical oxidative polymerization of a derivative of aniline.
- At least a substituent such as an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylaryl group, an arylalkyl group, and an alkoxyalkyl group is provided at a position other than the 4-position of aniline. What has one can be illustrated.
- Preferable specific examples include o-substituted anilines such as o-methylaniline, o-ethylaniline, o-phenylaniline, o-methoxyaniline, o-ethoxyaniline, m-methylaniline, m-ethylaniline, and m-substituted anilines such as m-methoxyaniline, m-ethoxyaniline, m-phenylaniline, and the like. These may be used alone or in combination of two or more.
- p-phenylaminoaniline having a substituent at the 4-position can be suitably used as an aniline derivative because polyaniline can be obtained by oxidative polymerization.
- aniline or a derivative thereof is simply referred to as “aniline”, and “at least one of polyaniline and polyaniline derivatives” is simply referred to as “polyaniline”. Therefore, even when the polymer constituting the conductive polymer is obtained from an aniline derivative, it may be referred to as “conductive polyaniline”.
- the conductive auxiliary agent coated on the surface of the conductive polymer particles serving as the nucleus may be a conductive material whose properties do not change depending on the potential applied during the discharge of the electricity storage device.
- conductive carbon materials and metal materials include conductive carbon materials and metal materials.
- conductive carbon blacks such as acetylene black and ketjen black, and fibrous carbon materials such as carbon fibers and carbon nanotubes are preferably used. Particularly preferred is conductive carbon black.
- the conductive assistant is preferably 1 to 30 parts by weight, more preferably 4 to 20 parts by weight, and particularly preferably 8 to 18 parts by weight with respect to 100 parts by weight of the conductive polymer.
- the blending amount of the conductive assistant is within this range, the shape and characteristics as the active material can be prepared without any abnormality, and the rate characteristics can be effectively improved.
- the active material particles of the present invention can be obtained, for example, by subjecting the conductive polymer particles and the conductive auxiliary agent to a shearing process using a particle composite device.
- the particle composite apparatus include Nobilta and Mechanofusion manufactured by Hosokawa Micron, Mirror D manufactured by Nara Machinery Co., Ltd., COMPOSI and CONPIX manufactured by Nippon Coke.
- the size of the active material particles (coating particles coated with a conductive aid) of the present invention thus obtained is preferably a median diameter of 0.001 to 1000 ⁇ m, more preferably 0.01 to 100 ⁇ m. Particularly preferably, the thickness is 0.1 to 20 ⁇ m.
- the median diameter can be measured using, for example, a static light scattering particle size distribution measuring apparatus.
- the size of the conductive polymer particles before coating with the conductive assistant is substantially the same as the size of the active material particles (coating particles).
- a binder, a conductive aid, water, and the like can be appropriately added to the positive electrode forming material of the present invention as necessary.
- binder for example, a binder such as vinylidene fluoride or styrene-butadiene rubber is used.
- a polyanion an anion compound having a relatively large molecular weight, an anionic polymer having low solubility in the electrolyte, and the like can be used.
- the main component of a binder consists of the said anionic polymer.
- the main component means a component that occupies the majority of the whole, and includes the case where the whole consists of only the main component.
- the anionic material examples include a polymer anion, an anion compound having a relatively large molecular weight, and an anion compound having a low solubility in an electrolytic solution. More specifically, a compound having a carboxyl group in the molecule is preferably used, and a polycarboxylic acid which is a polymer is particularly preferably used. When polycarboxylic acid is used as the anionic material, since the polycarboxylic acid functions as a binder and also functions as a dopant, the characteristics of the electricity storage device are improved.
- polycarboxylic acid examples include polyacrylic acid, polymethacrylic acid, polyvinylbenzoic acid, polyallylbenzoic acid, polymethallylbenzoic acid, polymaleic acid, polyfumaric acid, polyglutamic acid, and polyaspartic acid.
- Polymethacrylic acid is particularly preferably used. These may be used alone or in combination of two or more.
- polycarboxylic acid examples include those in which a carboxylic acid having a carboxyl group in the molecule is converted to a lithium type.
- the ideal replacement rate for the lithium type is 100%, but this is not necessarily the case, and it is preferably 40% to 100%.
- the electricity storage device according to the present invention has a rocking chair type mechanism and is involved in improving its characteristics. It seems to be.
- the binder is usually used in an amount of 1 to 100 parts by weight, preferably 2 to 70 parts by weight, and most preferably 5 to 40 parts by weight with respect to 100 parts by weight of the conductive polymer. If the amount of the binder is too small, there is a tendency that a uniform electrode cannot be obtained. Even if the amount of the anionic material is too large, the active material is reduced as a result, and an energy storage device with high energy density cannot be obtained. There is a tendency.
- examples of the optional conductive assistant that is appropriately added to the positive electrode forming material according to the present invention include those similar to the conductive assistant used for the active material particles.
- the conductive auxiliary agent may be any conductive material whose properties do not change depending on the potential applied during the discharge of the electricity storage device, and examples thereof include conductive carbon materials and metal materials, among which acetylene black and ketjen black Etc., and fibrous carbon materials such as carbon fibers and carbon nanotubes are preferably used, and conductive carbon black is particularly preferred.
- the conductive auxiliary agent here refers to an optional conductive auxiliary agent used separately from the conductive auxiliary agent coated on the surface of the conductive polymer particles, but is the same material as the conductive auxiliary agent for the active material particles. Or different.
- the optional conductive assistant is preferably 1 to 30 parts by weight, more preferably 4 to 20 parts by weight, and more preferably 8 to 18 parts by weight with respect to 100 parts by weight of the conductive polymer. Is particularly preferred.
- the positive electrode for an electricity storage device of the present invention is preferably composed of a composite of the above active material particles and an anionic material, and is usually formed in a porous sheet.
- the thickness of the positive electrode is usually 1 to 500 ⁇ m, preferably 10 to 300 ⁇ m.
- the thickness of the positive electrode can be calculated, for example, by measuring using a dial gauge (manufactured by Ozaki Mfg. Co., Ltd.), which is a flat plate with a tip shape of 5 mm in diameter, and calculating the average of 10 measurement values with respect to the electrode surface. .
- a dial gauge manufactured by Ozaki Mfg. Co., Ltd.
- the thickness of the composite is measured in the same manner as described above, and the average of the measured values is obtained. From this value, the current collector is obtained.
- the thickness of the positive electrode is determined by subtracting the thickness of the positive electrode.
- the positive electrode for an electricity storage device of the present invention is formed, for example, as follows. To the active material particles containing the conductive polymer, a conductive additive, a binder, and water are added and dispersed sufficiently to prepare a slurry. And after apply
- the negative electrode described above is preferably formed using a negative electrode material (negative electrode active material) capable of inserting / extracting metal or ions.
- a negative electrode material capable of inserting / extracting metal or ions.
- metallic lithium metallic lithium, a carbon material in which lithium ions can be inserted / extracted during oxidation / reduction, a transition metal oxide, silicon, tin, or the like is preferably used.
- the thickness of the negative electrode preferably conforms to the thickness of the positive electrode.
- the electrolyte layer described above is composed of an electrolyte.
- a sheet obtained by impregnating a separator with an electrolytic solution or a sheet made of a solid electrolyte is preferably used.
- the sheet made of the solid electrolyte itself also serves as a separator.
- the electrolyte is composed of a solute and, if necessary, a solvent and various additives.
- the solute include metal ions such as lithium ions and appropriate counter ions corresponding thereto, such as sulfonate ions, perchlorate ions, tetrafluoroborate ions, hexafluorophosphate ions, hexafluoroarsenic ions, bis
- a combination of (trifluoromethanesulfonyl) imide ion, bis (pentafluoroethanesulfonyl) imide ion, halogen ion and the like is preferably used.
- electrolyte examples include LiCF 3 SO 3 , LiClO 4 , LiBF 4 , LiPF 6 , LiAsF 6 , LiN (SO 2 CF 3 ) 2 , LiN (SO 2 C 2 F 5 ) 2 , LiCl, and the like. Can do.
- the solvent for example, at least one non-aqueous solvent such as carbonates, nitriles, amides, ethers, that is, an organic solvent is used.
- organic solvents include ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, acetonitrile, propionitrile, N, N'-dimethylacetamide, N-methyl-2- Examples include pyrrolidone, dimethoxyethane, diethoxyethane, and ⁇ -butyrolactone. These may be used alone or in combination of two or more. In addition, what melt
- electrode surface control agents such as vinylene carbonate, overcharge preventing agents such as biphenyl, cyclohexylbenzene and anisole fluoride, flame retardants such as phosphate esters and phosphazenes, etc.
- overcharge preventing agents such as biphenyl, cyclohexylbenzene and anisole fluoride
- flame retardants such as phosphate esters and phosphazenes, etc.
- the electricity storage device uses a separator in addition to the current collector, positive electrode, electrolyte layer, and negative electrode.
- a separator can be used in various modes.
- an insulating porous sheet that can prevent an electrical short circuit between the positive electrode and the negative electrode, is electrochemically stable, has a large ion permeability, and has a certain degree of mechanical strength is used.
- a porous sheet made of a resin such as paper, nonwoven fabric, polypropylene, polyethylene, or polyimide is preferably used. These may be used alone or in combination of two or more.
- the electrolyte layer 3 is a sheet
- the current collectors 1 and 5 in FIG. 1 those having characteristics such as excellent electronic conductivity, reduced volume inside the battery (thinning), and easy processing can be used. Examples of those satisfying such characteristics include metal foils and meshes such as nickel, aluminum, stainless steel, and copper.
- the positive electrode current collector (for example, current collector 1) and the negative electrode current collector (for example, current collector 5) may be made of the same material or different materials.
- FIG. 1 As the electricity storage device of the present invention, for example, as shown in FIG. 1, there is a device having an electrolyte layer 3 and a positive electrode 2 and a negative electrode 4 provided to face each other with the electrolyte layer 3 interposed therebetween.
- An electricity storage device using the positive electrode for an electricity storage device of the present invention can be produced, for example, as follows using the material such as the negative electrode. That is, lamination is performed such that a separator is disposed between the positive electrode and the negative electrode, a laminate is produced, and the laminate is placed in a battery container such as an aluminum laminate package, and then vacuum dried. Next, an electrolytic solution is poured into a vacuum-dried battery container, and a package that is a battery container is sealed, whereby an electricity storage device can be manufactured.
- batteries such as electrolyte solution injection
- the power storage device of the present invention is formed into various shapes such as a film type, a sheet type, a square type, a cylindrical type, and a button type in addition to the laminate cell.
- the positive electrode size of the electricity storage device is preferably 1 to 300 mm on one side in the case of a laminate cell, particularly preferably 10 to 50 mm, and the electrode size of the negative electrode is 1 to 400 mm. It is preferably 10 to 60 mm.
- the electrode size of the negative electrode is preferably slightly larger than the positive electrode size.
- the electricity storage device of the present invention is excellent in weight output density and cycle characteristics like an electric double layer capacitor, and has a weight energy density much higher than that of a conventional electric double layer capacitor. Therefore, it can be said that the electricity storage device of the present invention is a capacitor electricity storage device.
- Conductive polyaniline (conductive polymer) powder using tetrafluoroboric acid as a dopant was prepared as follows. That is, 84.0 g (0.402 mol) of a 42 wt% aqueous tetrafluoroboric acid solution (manufactured by Wako Pure Chemical Industries, Ltd., special grade reagent) was added to a 300 mL glass beaker containing 138 g of ion-exchanged water. While stirring with a stirrer, 10.0 g (0.107 mol) of aniline was added thereto.
- a 42 wt% aqueous tetrafluoroboric acid solution manufactured by Wako Pure Chemical Industries, Ltd., special grade reagent
- aniline When aniline was added to the tetrafluoroboric acid aqueous solution, the aniline was dispersed as oily droplets in the tetrafluoroboric acid aqueous solution, but then dissolved in water within a few minutes, and the uniform and transparent aniline aqueous solution. Became.
- the aniline aqueous solution thus obtained was cooled to ⁇ 4 ° C. or lower using a low temperature thermostat.
- the reaction mixture containing the produced reaction product was further stirred for 100 minutes while cooling. Then, using a Buchner funnel and a suction bottle, the obtained solid was No. Suction filtration was performed with two filter papers (manufactured by ADVANTEC) to obtain a powder. The powder was stirred and washed in an aqueous solution of about 2 mol / L tetrafluoroboric acid using a magnetic stirrer. Then, the mixture was washed with stirring several times with acetone and filtered under reduced pressure.
- conductive polyaniline (hereinafter simply referred to as “conductive polyaniline”) having tetrafluoroboric acid as a dopant.
- the conductive polyaniline was a bright green powder.
- ⁇ Preparation of binder solution Polyacrylic acid (manufactured by Wako Pure Chemical Industries, Ltd., weight average molecular weight 1 million) was dissolved in water to obtain 20.5 g of a 4.4 wt% concentration uniform and viscous polyacrylic acid aqueous solution. To this polyacrylic acid aqueous solution, 0.15 g of lithium hydroxide was added and dissolved again to prepare a polyacrylic acid-polylithium acrylate complex solution (binder solution) in which 50% of the acrylic acid sites were replaced with lithium.
- ⁇ Tab electrode> An aluminum metal foil with a thickness of 50 ⁇ m was prepared as a tab electrode for current extraction of the positive electrode, and a nickel metal foil with a thickness of 50 ⁇ m was prepared as a tab electrode for current extraction of the negative electrode.
- ⁇ Current collector> An aluminum foil with a thickness of 30 ⁇ m was prepared as a current collector for positive electrode, and a stainless mesh with a thickness of 180 ⁇ m was prepared as a current collector for negative electrode.
- a positive electrode slurry for preparing a positive electrode was prepared using the prepared material.
- the polyaniline particles are added to 20.5 g of the polyacrylic acid-lithium acrylate complex solution obtained above, kneaded well with a spatula, subjected to ultrasonic treatment for 5 minutes with an ultrasonic homogenizer, and the thin film swirl A slurry having fluidity was obtained using a high-speed mixer (manufactured by Primix, Fillmix 40-40). This slurry was subjected to defoaming operation for 3 minutes by using a rotating / revolving mixer (manufactured by Shinky Co., Ltd., Nertaro Awatori).
- a slurry was prepared in accordance with the preparation of the slurry for Example 1 except that the conductive assistant coating treatment was not performed using a particle composite apparatus (manufactured by Hosokawa Micron Corporation, Nobilta). That is, a mixture of 4 g of the polyaniline powder obtained above, 0.5 g of conductive carbon black (Denka Black, Denki Kagaku Kogyo Co., Ltd.), which is a conductive auxiliary agent, and 4 g of water was mixed with the polyacryl obtained above.
- a particle composite apparatus manufactured by Hosokawa Micron Corporation, Nobilta
- Examples 1 and 2 The slurry for Examples 1 and 2 obtained above was adjusted to a thickness of 360 ⁇ m by using a desktop automatic coating apparatus (manufactured by Tester Sangyo Co., Ltd.) and a doctor blade type applicator with a micrometer. And it apply
- Comparative Example 1 Using the desktop type automatic coating apparatus (manufactured by Tester Sangyo Co., Ltd.), the slurry for Comparative Example 1 obtained above was adjusted to a solution coating thickness of 360 ⁇ m using a doctor blade type applicator with a micrometer, and applied. It apply
- FIG. 2 shows an SEM photograph of each conductive polymer particle in Comparative Example 1
- (C) shows each conductive polymer particle in Example 2, respectively.
- the conductive polymer particle of Comparative Example 1 in FIG. 2 is a system in which no conductive additive is added, and is a bare conductive polymer particle itself with no conductive auxiliary coating on the particle surface. Compared to this, the conductive polymer particles of Examples 1 and 2 in FIG. 2 were found to have a slightly larger size but no significant change in particle morphology.
- Example 1 shows that there is no conductive aid such as soot and the conductive polymer particle size is slightly larger, so that the conductive aid is deposited on the surface of the conductive polymer particle. It was. From the above, it can be seen from FIGS. 2 and 3 that the conductive polymer particles of Examples 1 and 2 are coated with a conductive additive on the surface thereof.
- the battery was assembled in a glove box under an ultra-high purity argon gas atmosphere (dew point in the glove box: ⁇ 100 ° C.).
- the electrode size of the positive electrode for the laminate cell is 27 mm ⁇ 27 mm, the negative electrode size is 29 mm ⁇ 29 mm, which is slightly larger than the positive electrode size.
- the metal foil of the tab electrode for the positive electrode and the negative electrode was used by connecting to the corresponding current collector in advance with a spot welder.
- a polyaniline sheet electrode (positive electrode), a stainless mesh prepared as a negative electrode current collector, and a separator were vacuum-dried at 100 ° C. for 5 hours. After that, it was put in a glove box with a dew point of ⁇ 100 ° C., and the prepared metal lithium foil was pressed into the stainless steel mesh of the current collector in the glove box to make a composite of the negative electrode and the current collector. .
- the glove box put a separator between the positive electrode and the negative electrode, set them in a laminate cell that is heat-sealed on three sides, and make sure that the positive electrode and the negative electrode face each other correctly and do not short-circuit.
- the position of the separator was also adjusted, and a sealing agent was set on the positive electrode and negative electrode tab portions, and the tab electrode portion was heat-sealed leaving a little electrolyte inlet.
- a predetermined amount of electrolyte solution was sucked with a micropipette, and a predetermined amount was injected from the electrolyte solution inlet of the laminate cell.
- the electrolyte solution inlet at the top of the laminate cell was sealed with a heat seal to complete the laminate cell.
- the weight capacity density of polyaniline was set to 150 mAh / g, and the total capacity density (mAh / g) was calculated from the amount of polyaniline contained in the electrode unit area of each power storage device, and was set to charge / discharge the entire capacity in 20 hours. (0.05C).
- Examples 1 and 2 using positive electrodes containing conductive polymer particles coated with a conductive auxiliary agent on the surface contain conductive polymer particles whose surface is not coated with a conductive auxiliary agent. It was found that the energy density was higher than in Comparative Example 1 using the positive electrode.
- the electricity storage device of the present invention can be suitably used as an electricity storage device such as a lithium secondary battery.
- the power storage device of the present invention can be used for the same applications as conventional secondary batteries.
- portable electronic devices such as portable PCs, mobile phones, and personal digital assistants (PDAs), hybrid electric vehicles, Widely used in power sources for driving automobiles, fuel cell vehicles and the like.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
以下、上記正極、負極、電解質層について順に説明する。
上記正極は、上記導電性ポリマー粒子の表面に上記導電助剤がコーティングされてなる活物質粒子を含有する正極形成材料を用いてなる。
本発明の活物質粒子の核となる導電性ポリマーについて説明する。上記導電性ポリマーは、ポリマー主鎖の酸化反応または還元反応によって生成し、または消失する電荷の変化を補償するために、イオン種がポリマーに挿入し、またはポリマーから脱離することによって、ポリマー自身の導電性が変化する一群のポリマーをいう。
本発明の活物質粒子において、核となる導電性ポリマー粒子の表面にコーティングされる導電助剤は、蓄電デバイスの放電時に印加する電位によって性状の変化しない導電性材料であればよく、例えば、導電性炭素材料、金属材料等があげられ、なかでもアセチレンブラック、ケッチェンブラック等の導電性カーボンブラックや、炭素繊維、カーボンナノチューブ等の繊維状炭素材料が好ましく用いられる。特に好ましくは導電性カーボンブラックである。
本発明の活物質粒子は、例えば、上記導電性ポリマー粒子と、導電助剤とを、粒子複合装置を用いてせん断処理することにより得ることができる。上記粒子複合装置としては、例えば、ホソカワミクロン社製のノビルタやメカノフュージョン、奈良機械製作所社製のミラーD、日本コークス社製のCOMPOSIやCONPIX等があげられる。
先に述べた負極としては、金属またはイオンを挿入・脱離し得る負極物質(負極活物質)を用いて形成されたものが好ましい。上記負極活物質としては、金属リチウムや、酸化・還元時にリチウムイオンが挿入・脱離し得る炭素材料や遷移金属酸化物、シリコン、スズなどが好ましく用いられる。なお、負極の厚みは、正極の厚みに準ずることが好ましい。
先に述べた電解質層は、電解質により構成されるが、例えば、セパレータに電解液を含浸させてなるシートや、固体電解質からなるシートが好ましく用いられる。固体電解質からなるシートは、それ自体がセパレータを兼ねている。
つぎに、本発明の蓄電デバイス用正極を用いた蓄電デバイスについて説明する。本発明の蓄電デバイスとしては、例えば、図1に示すように、電解質層3と、これを挟んで対向して設けられた正極2と負極4とを有するものがあげられる。
テトラフルオロホウ酸をドーパントとする導電性ポリアニリン(導電性ポリマー)の粉末を、下記のように調製した。すなわち、イオン交換水138gを入れた300mL容量のガラス製ビーカーに、42重量%濃度のテトラフルオロホウ酸水溶液(和光純薬工業社製、試薬特級)84.0g(0.402mol)を加え、磁気スターラーにて撹拌しながら、これにアニリン10.0g(0.107mol)を加えた。テトラフルオロホウ酸水溶液にアニリンを加えた当初は、アニリンは、テトラフルオロホウ酸水溶液に油状の液滴として分散していたが、その後、数分以内に水に溶解し、均一で透明なアニリン水溶液になった。このようにして得られたアニリン水溶液を低温恒温槽を用いて-4℃以下に冷却した。
上記導電性ポリアニリン粉末130mgを瑪瑙製乳鉢で粉砕した後、赤外スペクトル測定用KBr錠剤成形器を用い、75MPaの圧力下に10分間真空加圧成形して、直径13mm、厚み720μmの導電性ポリアニリンのディスクを得た。ファン・デル・ポー法による4端子法電導度測定にて測定した上記ディスクの電導度は、19.5S/cmであった。
上記により得られたドープ状態である導電性ポリアニリン粉末を、2mol/L水酸化ナトリウム水溶液中に入れ、3Lセパラブルフラスコ中にて30分間撹拌し、中和反応によりドーパントのテトラフルオロホウ酸を脱ドープした。濾液が中性になるまで脱ドープしたポリアニリンを水洗した後、アセトン中で撹拌洗浄し、ブフナー漏斗と吸引瓶を用いて減圧濾過し、No.2濾紙上に、脱ドープしたポリアニリン粉末を得た。これを室温下、10時間真空乾燥して、茶色の脱ドープ状態のポリアニリン粉末を得た。
つぎに、フェニルヒドラジンのメタノール水溶液中に、この脱ドープ状態のポリアニリン粉末を入れ、撹拌下30分間還元処理を行った。ポリアニリン粉末の色は、還元により、茶色から灰色に変化した。反応後、メタノール洗浄、アセトン洗浄し、濾別後、室温下真空乾燥し、還元脱ドープ状態のポリアニリンを得た。
アセトンを溶媒として用いた、光散乱法による上記粒子のメジアン径は13μmであった。
上記還元脱ドープ状態のポリアニリン粉末130mgを瑪瑙製乳鉢で粉砕した後、赤外スペクトル測定用KBr錠剤成形器を用い、75MPaの圧力下に10分間真空加圧成形して、厚み720μmの還元脱ドープ状態のポリアニリンのディスクを得た。ファン・デル・ポー法による4端子法電導度測定にて測定した上記ディスクの電導度は、5.8×10-3S/cmであった。これより、ポリアニリン化合物は、イオンの挿入・脱離により導電性の変化する活物質化合物であるといえる。
ポリアクリル酸(和光純薬工業社製、重量平均分子量100万)を水に溶解し、4.4重量%濃度の均一で粘稠なポリアクリル酸水溶液20.5gを得た。このポリアクリル酸水溶液に、水酸化リチウム0.15gを加え、再度溶解させアクリル酸部位の50%がリチウムに置換したポリアクリル酸-ポリアクリル酸リチウム複合体溶液(バインダー溶液)を調製した。
不織布(宝泉社製、TF40-50(空孔率:55%))を準備した。
厚み50μmの金属リチウム(本城金属社製、圧延型金属リチウム)を準備した。
1モル/dm3濃度のテトラフルオロホウ酸リチウム(LiBF4)のエチレンカーボネート/ジメチルカーボネート溶液(キシダ化学社製)を準備した。
正極の電流取り出し用タブ電極として、厚み50μmのアルミ金属箔を準備し、負極の電流取り出し用タブ電極として、厚み50μmのニッケル金属箔を準備した。
正極用集電体として、厚み30μmのアルミ箔を準備し、負極用集電体として、厚み180μmのステンレスメッシュを準備した。
上記で得たポリアニリン粉末4gと、導電助剤である導電性カーボンブラック(電気化学工業社製、デンカブラック)0.5g(ポリアニリン粉末100重量部に対して13重量部となる量)とを、粒子複合化装置(ホソカワミクロン社製、ノビルタ)を用いて、80ccで負荷動力が500Wになるような回転条件で30分間処理することにより、導電助剤が粒子表面にコーティングされたポリアニリン粒子を得た。このポリアニリン粒子を、前記で得たポリアクリル酸-ポリアクリル酸リチウム複合体溶液20.5g中に加え、スパチュラでよく練った後、超音波式ホモジナイザーにて5分間超音波処理を施し、薄膜旋回型高速ミキサー(プライミックス社製、フィルミックス40-40型)を用いて、流動性を有するスラリーを得た。このスラリーを自転・公転ミキサー(シンキー社製、あわとり練太郎)を用い、3分間脱泡操作を行った。
導電助剤である導電性カーボンブラック(電気化学工業社製、デンカブラック)の配合量を1.0gに増量した以外は、実施例1用のスラリーの調製と同様にしてスラリーを調製した。
粒子複合化装置(ホソカワミクロン社製、ノビルタ)を用いた、導電助剤のコーティング処理を行わなかった以外は、実施例1用のスラリーの調製に準じてスラリーを調製した。すなわち、上記で得たポリアニリン粉末4gと、導電助剤である導電性カーボンブラック(電気化学工業社製、デンカブラック)0.5gと、水4gとを混合したものを、前記で得たポリアクリル酸-ポリアクリル酸リチウム複合体溶液20.5g中に加え、スパチュラでよく練った後、超音波式ホモジナイザーにて5分間超音波処理を施し、薄膜旋回型高速ミキサー(プライミックス社製、フィルミックス40-40型)を用いて、流動性を有するスラリーを得た。このスラリーを自転・公転ミキサー(シンキー社製、あわとり練太郎)を用い、3分間脱泡操作を行った。このようにして、比較例1のスラリーを調製した。
上記で得た実施例1,2用のスラリーを、それぞれ卓上型自動塗工装置(テスター産業社製)を用い、マイクロメーター付きドクターブレ-ド式アプリケータによって、溶液塗工厚みを360μmに調整し、塗布速度10mm/秒にて、電気二重層キャパシタ用エッチングアルミニウム箔(宝泉社製、30CB)上に塗布した。つぎに、室温(25℃)で45分間放置した後、温度100℃のホットプレート上で乾燥し、ポリアニリンシート電極(正極)を作製した。
上記で得た比較例1用のスラリーを、卓上型自動塗工装置(テスター産業社製)を用い、マイクロメーター付きドクターブレ-ド式アプリケータによって、溶液塗工厚みを360μmに調整し、塗布速度10mm/秒にて、電気二重層キャパシタ用エッチングアルミニウム箔(宝泉社製、30CB)上に塗布した。つぎに、温度150℃の乾燥機にて20分間乾燥し、ポリアニリンシート電極(正極)を作製した。
上記により得られた実施例1,2、比較例1の各正極(ポリアニリンシート電極)と、その他準備した上記材料を用いて、蓄電デバイス(リチウム二次電池)であるラミネートセルの組立をつぎに示す。
各蓄電デバイスを、電池充放電装置(北斗電工社製、SD8)を用いて、25℃の環境下で、定電流一定電圧充電/定電流放電モードにてエネルギー密度測定を行った。充電終止電圧は3.8Vとし、定電流充電により電圧が3.8Vに到達した後は、3.8Vの定電圧充電を2分間行い、この後、放電終止電圧2.0Vまで定電流放電を行った。ポリアニリンの重量容量密度を150mAh/gとし、各蓄電デバイスの電極単位面積に含まれるポリアニリン量から全容量密度(mAh/g)を算出して、20時間で全容量を充放電するように設定した(0.05C)。
2 正極
3 電解質層
4 負極
5 集電体(負極用)
Claims (10)
- 導電性ポリマーと導電助剤とを含有する、蓄電デバイス用正極の活物質粒子であって、上記導電性ポリマー粒子の表面に上記導電助剤がコーティングされてなることを特徴とする活物質粒子。
- 上記導電助剤の配合量が導電性ポリマー100重量部に対して1~30重量部である請求項1記載の活物質粒子。
- 上記導電性ポリマーがポリアニリンまたはその誘導体である請求項1または2記載の活物質粒子。
- 導電性ポリマーと導電助剤とを含有する活物質粒子を用いた蓄電デバイス用正極であって、上記導電性ポリマー粒子の表面に上記導電助剤がコーティングされてなることを特徴とする蓄電デバイス用正極。
- 上記導電助剤の配合量が導電性ポリマー100重量部に対して1~30重量部である請求項4記載の蓄電デバイス用正極。
- 上記導電性ポリマーがポリアニリンまたはその誘導体である請求項4または5記載の蓄電デバイス用正極。
- 電解質層と、これを挟んで対向して設けられた正極と負極とを有する蓄電デバイスであって、上記正極が、上記導電性ポリマー粒子の表面に上記導電助剤がコーティングされてなる活物質粒子を用いてなることを特徴とする蓄電デバイス。
- 上記導電助剤の配合量が導電性ポリマー100重量部に対して1~30重量部である請求項7記載の蓄電デバイス。
- 上記導電性ポリマーがポリアニリンまたはその誘導体である請求項7または8記載の蓄電デバイス。
- 導電性ポリマーと導電助剤とを含有する、蓄電デバイス用正極の活物質粒子の製造方法であって、上記電性ポリマー粒子と導電助剤とを粒子複合装置を用いてせん断処理することにより、上記導電性ポリマー粒子の表面に上記導電助剤がコーティングされてなる活物質粒子を製造することを特徴とする活物質粒子の製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157012222A KR102157913B1 (ko) | 2012-11-13 | 2013-11-12 | 활물질 입자, 축전 디바이스용 정극, 축전 디바이스 및 활물질 입자의 제조 방법 |
EP13855048.8A EP2908368B1 (en) | 2012-11-13 | 2013-11-12 | Active material particles, positive electrode for capacitor device, and manufacturing method for capacitor device and active material particles |
CN201380058847.9A CN104781967B (zh) | 2012-11-13 | 2013-11-12 | 活性物质颗粒、蓄电装置用正极、蓄电装置以及活性物质颗粒的制造方法 |
US14/441,563 US9882208B2 (en) | 2012-11-13 | 2013-11-12 | Particulate active material, power storage device positive electrode, power storage device, and production method for particulate active material |
US15/841,783 US10734645B2 (en) | 2012-11-13 | 2017-12-14 | Particulate active material, power storage device positive electrode, power storage device, and production method for particulate active material |
US16/871,591 US20200274153A1 (en) | 2012-11-13 | 2020-05-11 | Particulate active material power storage device positive electrode power storage device and production method for particulate active material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012249683A JP6241911B2 (ja) | 2012-11-13 | 2012-11-13 | 活物質粒子、蓄電デバイス用正極、蓄電デバイスおよび活物質粒子の製造方法 |
JP2012-249683 | 2012-11-13 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/441,563 A-371-Of-International US9882208B2 (en) | 2012-11-13 | 2013-11-12 | Particulate active material, power storage device positive electrode, power storage device, and production method for particulate active material |
US15/841,783 Continuation US10734645B2 (en) | 2012-11-13 | 2017-12-14 | Particulate active material, power storage device positive electrode, power storage device, and production method for particulate active material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014077225A1 true WO2014077225A1 (ja) | 2014-05-22 |
Family
ID=50731136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/080488 WO2014077225A1 (ja) | 2012-11-13 | 2013-11-12 | 活物質粒子、蓄電デバイス用正極、蓄電デバイスおよび活物質粒子の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (3) | US9882208B2 (ja) |
EP (1) | EP2908368B1 (ja) |
JP (1) | JP6241911B2 (ja) |
KR (1) | KR102157913B1 (ja) |
CN (1) | CN104781967B (ja) |
WO (1) | WO2014077225A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016160703A1 (en) | 2015-03-27 | 2016-10-06 | Harrup Mason K | All-inorganic solvents for electrolytes |
CN105390699B (zh) * | 2015-11-04 | 2019-02-19 | 宁德新能源科技有限公司 | 导电材料以及包括该导电材料的锂离子电池 |
US10707531B1 (en) | 2016-09-27 | 2020-07-07 | New Dominion Enterprises Inc. | All-inorganic solvents for electrolytes |
JP2018081830A (ja) * | 2016-11-16 | 2018-05-24 | 株式会社リコー | 電極活物質、蓄電素子用電極、および蓄電素子 |
WO2019176521A1 (ja) * | 2018-03-16 | 2019-09-19 | 積水化成品工業株式会社 | 着色有機樹脂粒子及びその製造方法 |
KR102343094B1 (ko) * | 2020-02-03 | 2021-12-23 | 한양대학교 산학협력단 | 전극 활물질 입자 표면에 고체 전해질 코팅막을 균일하게 코팅하는 방법 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62157678A (ja) * | 1985-12-28 | 1987-07-13 | Showa Denko Kk | 二次電池 |
JPH01132052A (ja) | 1987-08-10 | 1989-05-24 | Nitto Denko Corp | 導電性有機重合体電池 |
JPH02239572A (ja) * | 1989-03-14 | 1990-09-21 | Hitachi Maxell Ltd | ポリアニリン電池 |
JPH03129679A (ja) | 1989-06-23 | 1991-06-03 | Hitachi Maxell Ltd | ポリアニリン電池 |
JPH07335263A (ja) * | 1994-06-10 | 1995-12-22 | Tdk Corp | リチウム二次電池 |
JPH11288717A (ja) * | 1998-04-03 | 1999-10-19 | Nec Corp | プロトン伝導型ポリマー電池およびその製造方法 |
JPH11329438A (ja) * | 1998-05-08 | 1999-11-30 | Nec Corp | 電池用電極およびそれを用いた二次電池 |
JP2009093880A (ja) * | 2007-10-05 | 2009-04-30 | Toyota Central R&D Labs Inc | 蓄電デバイス |
JP2009259723A (ja) * | 2008-04-21 | 2009-11-05 | Shin Etsu Chem Co Ltd | 非水電解質二次電池用負極材及びその製造方法、ならびに非水電解質二次電池用負極及び非水電解質二次電池 |
JP2011181387A (ja) * | 2010-03-02 | 2011-09-15 | Toyo Ink Sc Holdings Co Ltd | 電気化学素子用電極合材の製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000077100A (ja) * | 1998-08-28 | 2000-03-14 | Sanyo Electric Co Ltd | 非水電解液二次電池 |
JP4177529B2 (ja) | 1999-08-30 | 2008-11-05 | 松下電器産業株式会社 | 非水電解質二次電池用負極、および非水電解質二次電池 |
KR100366344B1 (ko) * | 2000-06-16 | 2002-12-31 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 활물질의 제조 방법 |
JP2002082473A (ja) * | 2000-09-08 | 2002-03-22 | Fuji Xerox Co Ltd | 静電荷像現像用トナー及びその製造方法、静電荷像現像剤、画像形成方法、並びに画像形成装置 |
JP3708426B2 (ja) * | 2000-11-13 | 2005-10-19 | Necトーキン株式会社 | プロトン伝導型ポリマー2次電池 |
US7226695B2 (en) * | 2001-06-14 | 2007-06-05 | Showa Denko K.K. | Method for producing composite material for electrode comprising quinoxaline based polymer, such material, electrode and battery using the same |
WO2006080110A1 (ja) * | 2005-01-26 | 2006-08-03 | Shirouma Science Co., Ltd. | リチウム二次電池用正極材料 |
JP2007173134A (ja) * | 2005-12-26 | 2007-07-05 | Sumitomo Osaka Cement Co Ltd | リチウムイオン電池の電極用材料、リチウムイオン電池の電極形成用スラリーおよびリチウムイオン電池 |
JP5771873B2 (ja) * | 2006-05-04 | 2015-09-02 | エルジー・ケム・リミテッド | 伝導性(導電性)高分子複合体を用いた高容量/高出力の電気化学エネルギー貯蔵素子 |
KR100787381B1 (ko) * | 2006-11-16 | 2007-12-24 | 한국과학기술연구원 | 미세 캡슐-도전성 입자 복합체, 이의 제조 방법 및 이를이용한 이방 도전성 접착 필름 |
KR101406013B1 (ko) | 2008-03-17 | 2014-06-11 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 비수 전해질 2차 전지용 부극재 및 그것의 제조 방법, 및 비수 전해질 2차 전지용 부극 및 비수 전해질 2차 전지 |
JP4844764B2 (ja) * | 2008-03-17 | 2011-12-28 | 信越化学工業株式会社 | 非水電解質二次電池負極及びそれを用いた非水電解質二次電池 |
JP5436896B2 (ja) * | 2009-03-17 | 2014-03-05 | 日本化学工業株式会社 | リチウムリン系複合酸化物炭素複合体、その製造方法、リチウム二次電池用正極活物質及びリチウム二次電池 |
-
2012
- 2012-11-13 JP JP2012249683A patent/JP6241911B2/ja active Active
-
2013
- 2013-11-12 US US14/441,563 patent/US9882208B2/en active Active
- 2013-11-12 EP EP13855048.8A patent/EP2908368B1/en active Active
- 2013-11-12 CN CN201380058847.9A patent/CN104781967B/zh active Active
- 2013-11-12 KR KR1020157012222A patent/KR102157913B1/ko active IP Right Grant
- 2013-11-12 WO PCT/JP2013/080488 patent/WO2014077225A1/ja active Application Filing
-
2017
- 2017-12-14 US US15/841,783 patent/US10734645B2/en active Active
-
2020
- 2020-05-11 US US16/871,591 patent/US20200274153A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62157678A (ja) * | 1985-12-28 | 1987-07-13 | Showa Denko Kk | 二次電池 |
JPH01132052A (ja) | 1987-08-10 | 1989-05-24 | Nitto Denko Corp | 導電性有機重合体電池 |
JPH02239572A (ja) * | 1989-03-14 | 1990-09-21 | Hitachi Maxell Ltd | ポリアニリン電池 |
JPH03129679A (ja) | 1989-06-23 | 1991-06-03 | Hitachi Maxell Ltd | ポリアニリン電池 |
JPH07335263A (ja) * | 1994-06-10 | 1995-12-22 | Tdk Corp | リチウム二次電池 |
JPH11288717A (ja) * | 1998-04-03 | 1999-10-19 | Nec Corp | プロトン伝導型ポリマー電池およびその製造方法 |
JPH11329438A (ja) * | 1998-05-08 | 1999-11-30 | Nec Corp | 電池用電極およびそれを用いた二次電池 |
JP2009093880A (ja) * | 2007-10-05 | 2009-04-30 | Toyota Central R&D Labs Inc | 蓄電デバイス |
JP2009259723A (ja) * | 2008-04-21 | 2009-11-05 | Shin Etsu Chem Co Ltd | 非水電解質二次電池用負極材及びその製造方法、ならびに非水電解質二次電池用負極及び非水電解質二次電池 |
JP2011181387A (ja) * | 2010-03-02 | 2011-09-15 | Toyo Ink Sc Holdings Co Ltd | 電気化学素子用電極合材の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR102157913B1 (ko) | 2020-09-18 |
CN104781967B (zh) | 2018-12-11 |
EP2908368A4 (en) | 2016-05-11 |
US20150311509A1 (en) | 2015-10-29 |
US20180108906A1 (en) | 2018-04-19 |
EP2908368A1 (en) | 2015-08-19 |
US10734645B2 (en) | 2020-08-04 |
US9882208B2 (en) | 2018-01-30 |
JP6241911B2 (ja) | 2017-12-06 |
KR20150084835A (ko) | 2015-07-22 |
CN104781967A (zh) | 2015-07-15 |
EP2908368B1 (en) | 2020-03-18 |
JP2014099296A (ja) | 2014-05-29 |
US20200274153A1 (en) | 2020-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013002415A1 (ja) | 非水電解液二次電池とそのための正極シート | |
US20200274153A1 (en) | Particulate active material power storage device positive electrode power storage device and production method for particulate active material | |
JP6153124B2 (ja) | 非水電解液二次電池およびその製造方法 | |
JP2014035836A (ja) | 非水電解液二次電池およびその製造方法 | |
JP2014130706A (ja) | 蓄電デバイス用正極および蓄電デバイス | |
JP2014123449A (ja) | 蓄電デバイス用電極およびその製造方法、並びに蓄電デバイス | |
WO2014024940A1 (ja) | 蓄電デバイス用正極、蓄電デバイスおよび蓄電デバイス正極用スラリーの製造方法 | |
WO2014006973A1 (ja) | 蓄電デバイス用電極、それを用いた蓄電デバイスおよびその製法 | |
WO2014084182A1 (ja) | 蓄電デバイス、およびそれに用いる電極並びに多孔質シート | |
WO2014024941A1 (ja) | 蓄電デバイス用正極およびその製造方法、蓄電デバイス用正極活物質およびその製造方法、ならびに蓄電デバイス | |
JP2015225753A (ja) | 蓄電デバイス | |
JP2014072129A (ja) | 蓄電デバイス用電極およびそれを用いた蓄電デバイス | |
EP2919306B1 (en) | Nonaqueous electrolyte secondary battery and method for producing same | |
JP2013239305A (ja) | 蓄電デバイス、それに用いる正極並びに多孔質シート、およびドープ率向上方法 | |
JP2014072128A (ja) | 蓄電デバイス正極用活物質粒子、それを用いた蓄電デバイス用正極並びに蓄電デバイス、および蓄電デバイス正極用活物質粒子の製造方法 | |
WO2014103779A1 (ja) | 非水電解液二次電池、およびそれに用いる正極 | |
JP2015149190A (ja) | 非水電解液二次電池 | |
JP2015099663A (ja) | 導電性ポリマー粒子およびその製法、並びにそれを用いた蓄電デバイス用正極とその製法 | |
WO2013172221A1 (ja) | 蓄電デバイスの製法およびそれにより得られる蓄電デバイス | |
WO2014065198A1 (ja) | カチオン移動型蓄電デバイス、それに用いる電極並びに多孔質シート、およびドープ率向上方法 | |
JP2014123450A (ja) | 蓄電デバイス用電極およびその製造方法、並びに蓄電デバイス | |
JP2014127446A (ja) | 蓄電デバイス用電極の製法およびそれにより得られる電極並びに蓄電デバイス |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13855048 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14441563 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20157012222 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013855048 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |