| 发明名称 |
BINDERS DERIVED FROM POLYAMIC ACIDS FOR ELECTROCHEMICAL CELLS |
| 摘要 |
Described are binder precursor compositions for cathodes containing polyamic acid which has a anhydride to amine ratio of greater than or equal to 0.985:1 to less than or equal to 1.10:1. These compositions are useful as cathodes in electrochemical cells, such as lithium ion batteries. Also described are electrodes comprising the binder precursor compositions and methods to prepare the electrodes. |
| 申请公布号 |
US2015044578(A1) |
申请公布日期 |
2015.02.12 |
| 申请号 |
US201414341904 |
申请日期 |
2014.07.28 |
| 申请人 |
E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
KOURTAKIS KOSTANTINOS;Choudhury Biswajit;Grier Gerard Joseph |
| 分类号 |
H01M4/62;H01M4/505;H01M4/525;H01M4/131 |
主分类号 |
H01M4/62 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A binder precursor composition for a cathode of an electrochemical cell comprising an electroactive cathode material and a polyamic acid, wherein the polyamic acid has an anhydride to amine ratio of greater than or equal to about 0.985:1 to less than or equal to about 1.10:1. |
| 地址 |
Wilmington DE US |
