Patent ID: 9577256
Date: 2017-02-21
CPC Classifications: H01M,Y02E

Claim:
1. An electrode mixture containing a particulate electrode active material, an electrically conductive material and a binder, wherein the electrode active material includes a particulate core material and a coating material adhering in the form of particles or a layer to the surface of the core material, the core material is obtained by a method comprising a step of coprecipitating two or more transition metal elements, and the binder consists essentially of a water-soluble macromolecule and a water-dispersible macromolecule where the water-soluble macromolecule and water-dispersible macromolecule are provided in a weight ratio of 9:1 to 1:9, wherein the water-dispersible macromolecule is at least one selected from the group consisting of an ethylene-vinyl acetate copolymer and ethylene-vinyl acetate-alkyl acrylate copolymer, and the water-soluble macromolecule includes one or more macromolecules selected from the group consisting of carboxymethyl cellulose, polyvinyl alcohol and polyvinyl pyrrolidone.