NEGATIVE ELECTRODE MIXTURE COMPOSITION FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

To provide: a negative electrode mixture composition which can raise the productivity of a negative electrode for a secondary battery; a method for manufacturing a negative electrode for a secondary battery, which is arranged to use the negative electrode mixture composition; and a method for manufa...

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1. Verfasser: KISHIMI MITSUHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide: a negative electrode mixture composition which can raise the productivity of a negative electrode for a secondary battery; a method for manufacturing a negative electrode for a secondary battery, which is arranged to use the negative electrode mixture composition; and a method for manufacturing a secondary battery.SOLUTION: A negative electrode mixture composition for a secondary battery according to the present invention comprises a zinc oxide, a binder, a conductive assistant agent, a water-soluble polymer material, and a solvent. The content of the water-soluble polymer material in all of components excluding the solvent is 0.02-0.2 mass%. A method for manufacturing a negative electrode for a secondary battery according to the invention comprises the step of forming a negative electrode mixture layer having a thickness of 1 mm or more with the negative electrode mixture composition for a secondary battery according to the invention. A method for manufacturing a secondary battery according to the invention comprises the step of using the negative electrode for a secondary battery obtained by the manufacturing method of the invention as its negative electrode in manufacturing a secondary battery having a positive electrode, a negative electrode, a separator and an electrolyte.SELECTED DRAWING: Figure 1 【課題】 二次電池用負極の生産性を高め得る負極合剤組成物、前記負極合剤組成物を用いた二次電池用負極の製造方法および二次電池の製造方法を提供する。【解決手段】 本発明の二次電池用負極合剤組成物は、酸化亜鉛、バインダ、導電助剤、水溶性高分子材料および溶媒を含有し、前記溶媒を除く全成分中の前記水溶性高分子材料の含有量が、0.02〜0.2質量%であることを特徴とするものである。本発明の二次電池用負極の製造方法は、本発明の二次電池用負極合剤組成物を用いて、厚みが1mm以上の前記負極合剤層を形成する工程を有することを特徴とし、本発明の二次電池の製造方法は、正極、負極、セパレータおよび電解質を有する二次電池を製造するにあたり、本発明の製造方法によって得られた二次電池用負極を前記負極として用いることを特徴とする。【選択図】 図1