| 发明名称 | Binder for storage battery device | ||
| 摘要 | To provide a binder for a storage battery device, whereby good adhesion in an electrode and flexibility are obtainable, and it is possible to realize good charge and discharge characteristics when used for a secondary battery.;A binder for a storage battery device, which is made of a fluorinated copolymer comprising structural units (a) derived from tetrafluoroethylene and structural units (b) derived from propylene, wherein the molar ratio (a)/(b) is from 40/60 to 50/50, and the total of the structural units (a) and (b) is at least 90 mol % in all structural units. | ||
| 申请公布号 | US9490484(B2) | 申请公布日期 | 2016.11.08 |
| 申请号 | US201414469114 | 申请日期 | 2014.08.26 |
| 申请人 | Asahi Glass Company, Limited | 发明人 | Toyoda Mizuna;Kose Takehiro;Nagai Hiroki |
| 分类号 | H01M4/62;H01M10/04;C08F214/26;C08F210/06;H01M10/0566;H01M10/052 | 主分类号 | H01M4/62 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A binder composition for a storage battery device, comprising: a binder which comprises a fluorinated copolymer comprising structural units (a) derived from tetrafluoroethylene and structural units (b) derived from propylene, wherein the molar ratio (a)/(b) is from 40/60 to 48/52, and the total of the structural units (a) and the structural units (b) is at least 90 mol % with respect to all structural units included in the binder; and a medium, wherein the medium is an aqueous medium, and particles made of the fluorinated copolymer are dispersed in the aqueous medium, and the average particle size of the particles made of the fluorinated copolymer is from 10 to 200 nm. | ||
| 地址 | Chiyoda-ku JP | ||