发明名称 |
BINDER FOR LITHIUM ION SECONDARY BATTERY ELECTRODES, SLURRY, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY |
摘要 |
The present invention provides a binder for lithium ion secondary battery electrodes that is obtained by emulsion polymerization of an ethylenically unsaturated monomer in an aqueous medium in the presence of a surfactant, the ethylenically unsaturated monomer being composed, with respect to the total mass of the ethylenically unsaturated monomer, of 15% by mass to 70% by mass of styrene, 1% by mass to 10% by mass of an N atom-containing ethylenically unsaturated monomer, 1% by mass to 10% by mass of an ethylenically unsaturated carboxylic acid, 0.1% by mass to 5% by mass of an internal crosslinking agent, and 22% by mass to 82.9% by mass of another ethylenically unsaturated monomer that is copolymerizable with these substances, and has a glass transition temperature of −55° C. to 30° C. |
申请公布号 |
US2015357647(A1) |
申请公布日期 |
2015.12.10 |
申请号 |
US201414760647 |
申请日期 |
2014.01.20 |
申请人 |
SHOWA DENKO K.K. |
发明人 |
KURATA Tomonori;HANASAKI Mitsuru;FUKASE Kazunari |
分类号 |
H01M4/62;H01M4/133;H01M10/0525;H01M4/131 |
主分类号 |
H01M4/62 |
代理机构 |
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代理人 |
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主权项 |
1. A binder for a lithium ion secondary battery electrode that is obtained by emulsion polymerization of an ethylenically unsaturated monomer in an aqueous medium in the presence of a surfactant, the ethylenically unsaturated monomer being composed, with respect to the total mass of the ethylenically unsaturated monomer, of 15% by mass to 70% by mass of styrene, 1% by mass to 10% by mass of an N atom-containing ethylenically unsaturated monomer, 1% by mass to 10% by mass of an ethylenically unsaturated carboxylic acid, 0.1% by mass to 5% by mass of an internal crosslinking agent, and 22% by mass to 82.9% by mass of another ethylenically unsaturated monomer that is copolymerizable with these substances, and has a glass transition temperature of −55° C. to 30° C. |
地址 |
Tokyo JP |