| 发明名称 | Binder for secondary battery exhibiting excellent adhesion force | ||
| 摘要 | Provided is a binder for secondary battery electrodes comprising polymer particles obtained by polymerizing (a) a (meth)acrylic acid ester monomer; (b) at least one monomer selected from the group consisting of an acrylate monomer, a vinyl monomer and a nitrile monomer; and (c) a (meth)acrylamide monomer and an unsaturated monocarbonic acid monomer, with two or more cross-linking agents with different molecular weights. Based on the combination of specific components, the binder basically improves stability of an electrode in the process of fabricating the electrode, thus providing secondary batteries with superior cycle properties. | ||
| 申请公布号 | US9054382(B2) | 申请公布日期 | 2015.06.09 |
| 申请号 | US201113328834 | 申请日期 | 2011.12.16 |
| 申请人 | LG CHEM, LTD. | 发明人 | Kang MinAh;Kim Young-Min;Kim Bhom Ri;Kim Ok Sun |
| 分类号 | H01M4/62;H01M4/13;C08F301/00;H01M4/04;H01M10/0525 | 主分类号 | H01M4/62 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A binder for secondary battery electrodes comprising polymer particles obtained by polymerizing (a) a (meth)acrylic acid ester monomer; (b) at least one monomer selected from the group consisting of an acrylate monomer, a vinyl monomer and a nitrile monomer; and (c) a (meth)acrylamide monomer and a unsaturated monocarbonic acid monomer, with two or more cross-linking agents with different molecular weights, wherein the cross-linking agents comprise the cross-linking agent having a low molecular weight not lower than 50 and lower than 250 and the cross-linking agent having a high molecular weight not lower than 250 and lower than 20,000, and are present at a mix ratio of cross-linking agent having low molecular weight:cross-linking agent having high molecular weight, on a weight basis from 1:0.1 to 1:20. | ||
| 地址 | Seoul KR | ||