Battery electrode, secondary battery, and method of manufacturing same
AssigneeNEC Tokin Corporation
InventorsMasaki Fujiwara, Gaku Harada, Shinako Okada, Toshihiko Nishiyama
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Abstract
A battery electrode is obtained by coating an electrically conductive film serving as a collector with an aqueous solution of formic acid containing polypyridine, which is an active material, in dissolved form as well as carbon powder serving as a conduction aid, and drying the solution on the film. A secondary battery is manufactured using such electrodes.
Claims23
A battery electrode which includes:
- a collector;
- at least one type of organic high polymer;
- and
- a carbon material which serves as a conduction aid,
- wherein said at least one type of organic high polymer is, in its entirety, a compound which produces an oxidation-reduction reaction due to electrochemical proton adsorption and desorption, and
- wherein the organic high polymer and the carbon material are bound to each other and to the collector in the absence of an organic binder.
A battery electrode which includes, on a collector, a dried product of a solution containing at least one type of organic high polymer in dissolved form and powder of a carbon material,
- wherein said at least one type of organic high polymer is, in its entirety, a compound which produces an oxidation-reduction reaction due to electrochemical proton adsorption and desorption, and
- wherein the organic high polymer and the carbon material are bound to each other and to the collector in the absence of an organic binder.
A method of manufacturing a battery electrode having a collector, which includes a step of forming a dried product of a solution containing at least one type of organic high polymer in dissolved form and powder of a carbon material, and a step wherein the organic high polymer and the carbon material are bound to each other and to the collector in the absence of an organic binder, and
- wherein a compound which produces an oxidation-reduction reaction due to electrochemical proton adsorption and desorption is used as an entirety of said at least one type of organic high polymer.
A method of manufacturing a battery electrode having a collector, which includes the steps:
- of forming a dried product of a solution containing at least one type of organic polymer in dissolved form and powder of a carbon material, and a step;
- wherein the organic high polymer and the carbon material are bound to each other and to the collector in the absence of an organic binder,
- wherein a compound which produces an oxidation-reduction reaction due to electrochemical proton adsorption and desorption is used as an entirety of said at least one type of organic polymer;
- and
- coating a surface of said collector with said solution to form the dried product of said solution on the surface of said collector.
Dependencies are inferred from the claim text.