摘要:
The present invention provides a method of producing an electrode for electric double layer capacitor, which yields the electrode having excellent electrode characteristics with good production suitability, using a coating material exhibiting a good dispersion state. A method of producing an electrode for a capacitor, the method comprising the steps of: applying an undercoat layer coating material which comprises at least electrically conductive particles, a binder and a solvent onto the current collector to form the undercoat layer; and applying an electrode layer coating material which comprises at least a carbon material, a binder and a solvent onto the undercoat layer to form the electrode layer. In the preparation of the undercoat layer coating material and/or in the preparation of the electrode layer coating material, dispersing treatment is conducted with ceramic beads as a dispersing medium.
摘要:
A manufacturing method for an electrode for an electrochemical capacitor according to the present invention comprises a first process (steps S1-S3) for forming a polarizable electrode layer on a current collector, a second process (step S4) for subjecting the front surface of the polarizable electrode layer formed on the current collector, to an embossment work, and a third process (step S5) for flattening the front surface of the polarizable electrode layer as has undergone the embossment work. In this manner, in the invention, the front surface of the polarizable electrode layer undergoes the embossment work, so that the polarizable electrode layer is effectively compressed, and it is consequently permitted to achieve a high volume capacitance of at least 17 F/cm3. Moreover, after the embossment work, the resulting embossment is flattened, so that porous grains contained in the polarizable electrode layer are prevented from falling off, and it is permitted to ensure a high reliability.
摘要翻译:根据本发明的用于电化学电容器的电极的制造方法包括用于在集电器上形成可极化电极层的第一工序(步骤S1〜S3),第二工序(步骤S4) 形成在集电体上的极化电极层到压花加工,以及第三工序(步骤S5),使经过压花加工的可极化电极层的前表面变平。 以这种方式,在本发明中,可极化电极层的前表面进行压纹加工,使得可极化电极层被有效地压缩,从而允许达到至少17F / cm 2的高体积电容, SUP> 3 SUP>。 此外,在压花加工之后,所得到的压花变平,防止包含在可极化电极层中的多孔颗粒脱落,并且允许确保高可靠性。
摘要:
A method of manufacturing an electrode includes a preparatory step of preparing an electrode matrix comprising a collector and an active material containing layer formed on at least one face of the collector, at least one edge part of the collector including an exposed surface free of the active material containing layer, an edge part of the active material containing layer on a side close to the exposed surface including a thinner part having a thickness smaller than a maximum thickness of the active material containing layer; and a roll-pressing step of pressing the electrode matrix with a roll press.
摘要:
The present invention is an electrode manufacturing method comprising a cutting step wherein an electrode sheet formed by an active substance-containing layer on a charge collector is cut to obtain an electrode element which is part of the electrode sheet, and a heating/pressurizing step which gives heating/pressurizing treatment to at least the edge part of the active substance-containing layer in the electrode element.
摘要:
The present invention provides a method of producing an electrode for an electric double layer capacitor, which yields the electrode with an electrode layer having a higher density by calendering treatment. A method of producing an electrode for a capacitor, which comprises at least a current collector and an electrode layer on the current collector, the method comprising the steps of: applying an electrode layer coating material which comprises at least a carbon material, a binder and a solvent, onto the current collector to form an electrode coating layer; drying the electrode coating layer on the current collector to set the amount of the solvent remaining in the electrode coating layer within a range of 5 to 35% by weight of the layer; and subjecting the electrode coating layer after the drying to calendering treatment to yield an electrode layer.
摘要:
The present invention provides a method of producing an electrode for an electric double layer capacitor, which yields the electrode with an electrode layer having a higher density by calendering treatment. A method of producing an electrode for a capacitor, which comprises at least a current collector and an electrode layer on the current collector, the method comprising the steps of: applying an electrode layer coating material which comprises at least a carbon material, a binder and a solvent, onto the current collector to form an electrode coating layer; drying the electrode coating layer on the current collector to set the amount of the solvent remaining in the electrode coating layer within a range of 5 to 35% by weight of the layer; and subjecting the electrode coating layer after the drying to calendering treatment to yield an electrode layer.
摘要:
An electric chemical capacitor includes first and second electrodes each including a collector 111, 121, a polarized electrode layer 112, 122 and an undercoat layer 113, 123 for bonding the collector and the polarized electrode layer with each other, and a separator put between the first and second electrodes so that the polarized electrode layers 112 and 122 face each other, wherein an end portion of each undercoat layer 113, 123 is located in the same position as or on the outer side of an end portion of the corresponding polarized electrode layer 112, 122, and located on the inner side of an end portion of the separator 130. Thus, the polarized electrode layers can be prevented from peeling from the collector. Further, the undercoat layers can be prevented from abutting against each other, and the undercoat layer of one electrode and the collector of the other electrode can be prevented from abutting against each other.
摘要:
The present invention is an electrode for an electrochemical capacitor provided with a collector having electronic conductivity and a porous body layer having electronic conductivity, the porous body layer containing porous particles having electronic conductivity and a binder which is able to bind the porous particles with one another, wherein the content of the porous particles in the porous body layer is in a range from 88 to 92% by mass on the basis of the total amount of the porous body layer, and the porous body layer has an apparent density in a range from 0.62 to 0.70 g/cm3.
摘要翻译:本发明是一种电化学电容器用电极,其具有具有电子导电性的集电体和具有电子导电性的多孔体层,多孔体层含有具有电子导电性的多孔粒子和能够将多孔粒子彼此结合的粘合剂 其特征在于,多孔体层的多孔质粒的含量相对于多孔体层的总量为88〜92质量%,多孔体层的表观密度为 0.62至0.70g / cm 3。
摘要:
The method of making an electrochemical capacitor electrode in accordance with the present invention comprises a coating liquid preparing step of preparing a porous layer forming coating liquid containing a solid component including a porous particle having an electronic conductivity and a binder adapted to bind the porous particle, a liquid adapted to dissolve or disperse the binder, and an aggregate made of the solid component, such that the aggregate has a degree of dispersion of 10 to 200 μm in the coating liquid; a porous layer forming step of applying the porous layer forming coating liquid onto a surface of a collector and then removing the liquid so as to form a porous layer; and a pressing step of pressing the aggregate against the collector by pressing the collector and the porous layer, so as to form a depression and a projection on the surface of the collector formed with the porous layer. This method can make an electrochemical capacitor electrode having a fully reduced internal resistance and a sufficient electrode characteristic.
摘要:
The present invention is an electrode for an electrochemical capacitor provided with a collector having electronic conductivity and a porous body layer having electronic conductivity, the porous body layer containing porous particles having electronic conductivity and a binder which is able to bind the porous particles with one another, wherein the content of the porous particles in the porous body layer is in a range from 88 to 92% by mass on the basis of the total amount of the porous body layer, and the porous body layer has an apparent density in a range from 0.62 to 0.70 g/cm3.
摘要翻译:本发明是一种电化学电容器用电极,其具有具有电子导电性的集电体和具有电子导电性的多孔体层,多孔体层含有具有电子导电性的多孔粒子和能够将多孔粒子彼此结合的粘合剂 其特征在于,多孔体层的多孔质粒的含量相对于多孔体层的总量为88〜92质量%,多孔体层的表观密度为 0.62至0.70g / cm 3。