Patent ID: 9627688
Date: 2017-04-18
CPC Classifications: H01M,Y02E

Claim:
1. An anode for a secondary battery, comprising: an electrode current collector; a first coating layer formed on the electrode current collector and comprising an anode active material, a first aqueous binder and a conducting material; and a second coating layer formed on the first coating layer and consisting of a second nonaqueous binder, wherein the first aqueous binder is one or more aqueous binder selected from a group consisting of styrene-butyl acrylate rubber, carboxymethyl cellulose and hydroxypropyl cellulose, wherein the second nonaqueous binder is one or more nonaqueous binder selected from a group consisting of polyvinylidene fluoride, polyacrylonitrile, acrylonitrile-containing binder, polyvinyl chloride, polyvinylpyrrolidone, polytetrafluoroethylene, polyethylene and polypropylene, and wherein the first coating layer is coated only at a point of contact of neighboring anode active material particles and binds the anode active material particles.