摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode for a power storage device offering a high discharge capacity, a high output, and excellent rate characteristics; and a power storage device offering a high discharge capacity, a high output, and excellent rate characteristics.SOLUTION: The method for manufacturing an electrode for a power storage device comprises the steps of: (a) obtaining a coating liquid for forming an electrode composite layer by mixing an electrode active material having an average particle size of 5 μm or smaller, a fluid dispersion of carbon nanotubes or carbon nanofibers, and a solution or a fluid dispersion of a polymeric binder if necessary, (b) obtaining a layered body by applying and drying the coating liquid for forming an electrode composite layer to the surface of a collector to form an electrode composite layer, and (c) obtaining an electrode for a power storage device by rolling the layered body.
摘要:
PROBLEM TO BE SOLVED: To provide an aqueous paste for forming an electrical storage device electrode in which an electrode active material, a conductive assistant and a binder are dispersed finely and homogeneously and which has a high processability, little environmental load, and little risk to impair human health, and to provide an electrical storage device electrode formed of the aqueous paste. SOLUTION: The aqueous paste for forming an electrical storage device electrode is a conductive carbonaceous material containing an electrode active material, a conductive assistant and a binder, and the conductive assistant has a hydrophilic property. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing an electrode composite for a nonaqueous electrolyte secondary battery with excellent battery characteristics from a gelatinized dispersed element used for manufacturing an electrode composite which can not be obtained from a conventional coating method.SOLUTION: The method of manufacturing an electrode composite for a secondary battery includes: (1) a gelatinization step of obtaining a gelatinized composition by gelatinizing a dispersed element by bringing at least a part of a binder into fibril-like form, where the dispersed element contains an electrode active material, the binder containing a polymer which can be brought into the fibril-like form, and a dispersant; and (2) a sheet forming step of forming the gelatinized composition into a sheet shape, removing the dispersant, and obtaining the sheet-like electrode composite for a secondary battery.
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode for a storage element, capable of manufacturing the electrode for the storage element having sufficiently large charge/discharge capacity even at a high charge/discharge rate, and to provide the storage element.SOLUTION: The method for manufacturing an electrode for a storage element includes the step of obtaining a coating liquid for electrode composite layer formation by introducing a liquid to be processed including an electrode active material, a fibrous carbonaceous material, a dispersant for the fibrous carbonaceous material, a resin binder and a medium into a specified distributed processing apparatus 1 under pressure of 30-200 MPa to process the liquid, and other steps. Two or more kinds of fibrous carbonaceous materials having different mean fiber lengths are used. Out of the two or more kinds of fibrous carbonaceous materials, a fibrous carbonaceous material (A) having the shortest mean fiber length is a mean fiber length Lof 0.1-20 μm, a mean fiber diameter of 2-20 nm and an aspect ratio of 4-2000, and a fibrous carbonaceous material (B) having the longest mean fiber length is a mean fiber length Lof 5 μm or more, a mean fiber diameter of 2-25 nm and an aspect ratio of 400 or more, where L/Lis 0.7 or less.
摘要:
PROBLEM TO BE SOLVED: To provide a manufacturing method of an electrode for electricity-storage devices which allows the manufacture of an electrode for electricity-storage devices such that a composite layer of the electrode is less prone to exfoliate from a current collector even with a small content of polytetrafluoroethylene.SOLUTION: The manufacturing method of an electrode for electricity-storage devices comprises the steps of: (a)mixing at least an aqueous fluid dispersion of polytetrafluoroethylene, an electrode active material, and a conductive assistant to prepare a fluid dispersion(A) having a viscosity of 100-1100 mPa s at 25°C; (b)stirring the fluid dispersion(A) into a viscous liquid(B) having an increased viscosity of 1200-20000 mPa s at 25°C; (c)applying the viscous liquid(B) to a surface of a current collector, followed by drying to form a composite layer of the electrode thereby forming a laminate; and (d)rolling the laminate thereby forming the electrode for electricity-storage devices.
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode active material for a storage element in a short time.SOLUTION: In the method for manufacturing an electrode active material for a storage element, a microwave furnace is used. The microwave furnace includes at least two inverter-controlled microwave oscillators which are arranged so that microwave irradiation regions are overlapped with each other in one region and are operated in a mutually decoupled state. A mixture of raw material components is supplied to the irradiation regions to be heated by the microwave furnace.
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode for a storage element capable of manufacturing an electrode for a storage element for giving a storage element having sufficiently large charge discharge capacity even at a high charge discharge rate, and a storage element.SOLUTION: The method for manufacturing an electrode for a storage element has a process or the like for mixing an electrode active material with a dispersion liquid of a fibrous carbonaceous material to acquire a coating liquid for electrode composite layer formation, and uses two or more kinds of different mean fiber lengths as the fibrous carbonaceous material. A material having the shortest mean fiber length among the two or more kinds of fibrous carbonaceous materials is a fibrous carbonaceous material (A) of a mean fiber length: 0.1 to 20 μm, a mean fiber diameter: 2 to 20 nm, and an aspect ratio: 4 to 2000, the material having the longest mean fiber length is a fibrous carbonaceous material (B) of a mean fiber length: 5 μm or more, a mean fiber diameter: 2 to 25 nm, and an aspect ratio: 400 or more, and the ratio (L/L) of the mean fiber length Lof (A) to the mean fiber length Lof (B) is 0.7 or less.
摘要翻译:解决方案:提供一种制造用于存储元件的电极的方法,所述存储元件的电极能够制造用于为具有足够大的充电放电容量的存储元件提供用于存储元件的电极,即使在高充电放电率下, 存储元件 解决方案:用于制造用于存储元件的电极的方法具有用于将电极活性材料与纤维状碳质材料的分散液混合以获得用于电极复合层形成的涂布液的方法,并且使用两个 或更多种不同的平均纤维长度作为纤维状含碳材料。 两种或更多种纤维状碳质材料中的平均纤维长度最短的材料是平均纤维长度为0.1〜20μm,平均纤维直径为2〜20nm的纤维质碳质材料(A) 比例为4〜2000,平均纤维长度最长的材料是平均纤维长度为5μm以上,平均纤维直径为2〜25nm,长宽比为400以下的纤维状碳质材料(B) 平均光纤长度L 的比例(L A SB> / L B SB>) (A)与(B)的平均纤维长度L B SB>的A SB>为0.7以下。 版权所有(C)2013,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a carbon nanomaterial dispersion capable of dispersing the carbon nanomaterial for a long time and highly concentrating the carbon nanomaterial.SOLUTION: This carbon nanomaterial dispersion contains the carbon nanomaterial (A), a partial decomposate (B) of sugar and a medium (C) capable of dissolving the partial decomposate (B) of sugar.
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing aqueous paste for forming a power storage element electrode, in which an active material, a conduction aid, and a binder are finely homogeneously dispersed, high in workability, low in risk of damaging an environmental load and health of a human body; and to provide the power storage element electrode. SOLUTION: The active material, the conduction aid, the binder, a fluorine compound represented by formula (1): R-X (1) (in the formula, R is a fluorine-containing alkyl group having 3-15C and 7-13F or fluorine-containing alkyl group having an ethereal oxygen atom, the fluorine-containing alkyl group may have a side chain of 1-3C fluorine-containing alkyl group, X is carboxylic acid, an alkali metal salt or an ammonium salt of carboxylic acid, sulfonic acid, an alkali metal salt or an ammonium salt of sulfonic acid, and the number of the total carbon atoms in R-X is 4-16), and an aqueous medium are mixed so that the content of the fluorine compound represented by formula (1) becomes 0.0005-5 mass% to the whole weight of the aqueous paste. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide water-based paste for forming a power storage element electrode in which an electrode active material, a conductive aid, and a binder are dispersed minutely and homogeneously, which has high workability, in which there is a small environmental load and little possibility of damages on human health, and the power storage element electrode formed from the water-based paste. SOLUTION: The water-based paste for forming the power storage element electrode contains the electrode active material, the conductive aid, the binder, and a fluorine containing carboxylic acid compound group expressed in a general formula (1): R f1 OR f2 COOA (1) (in the formula, R f1 is a perfluoroalkyl group of the carbon number of 1 to 5, R f2 is straight-chain fluorine-containing alkylene group, which may contain an etheric oxygen atom, or a side chain of the perfluoroalkyl group of the carbon number of 1 to 3, and A is hydrogen atom, alkaline metal, or NH 4 ). COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译:要解决的问题:为了提供用于形成电极活性材料,导电助剂和粘合剂的电极活性材料,导电助剂和粘合剂形成的水性糊料,其具有高的可加工性,其具有高的可加工性,其中存在 环境负荷小,对人体健康造成损害的可能性小,以及由水性糊形成的蓄电元件电极。 解决方案:用于形成蓄电元件电极的水性糊剂包含通式(1)表示的电极活性物质,导电助剂,粘合剂和含氟羧酸化合物基团:R F1 SP> OR f2 SP> COOA(1)(式中,R f1 SP>是碳数为1〜5的全氟烷基,R f2 SP>是可以含有醚性氧原子的直链含氟亚烷基或碳数为1〜3的全氟烷基的侧链,A为氢原子,碱金属或 NH 4 SB>)。 版权所有(C)2009,JPO&INPIT