| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a binder for an electrochemical device electrode capable of forming an electrode layer hardly swelling a polymer in an electrolyte, enhancing dispersion properties and storage stability when mixed with an active material, and increasing adhesion with a current collector. <P>SOLUTION: The binder for the electrochemical device electrode includes polymer particles obtained from a monomer containing 33-48.5 mass% conjugated diene, 40-50 mass% aromatic vinyl compound, 8-12.5 mass% methacrylate compound, and 3.5-6 mass% ethylene unsaturated carboxylic acid, the ethylene unsaturated carboxylic acid consists of methacrylic acid and itaconic acid, and the ratio of the itaconic acid in the ethylene unsaturated carboxylic acid is 60-85 mass%. <P>COPYRIGHT: (C)2010,JPO&INPIT |
