| 发明名称 |
Separator for Electricity Storage Device, Laminate and Porous Film |
| 摘要 |
An object is to provide a separator excellent in adhesiveness to electrodes and a separator for an electricity storage device also excellent in handling performance. A separator for an electricity storage device having a polyolefin microporous film and a thermoplastic polymer coating layer covering at least a part of at least one of surfaces of the polyolefin microporous film, in which the thermoplastic polymer coating layer, on the polyolefin microporous film, has a portion containing a thermoplastic polymer and a portion not containing the thermoplastic polymer in a sea-island configuration, the thermoplastic polymer coating layer contains the thermoplastic polymer having at least two glass-transition temperatures, at least one of the glass-transition temperatures is in a range of less than 20° C. and at least one of the glass-transition temperatures is in a range of 20° C. or more. |
| 申请公布号 |
US2015188108(A1) |
申请公布日期 |
2015.07.02 |
| 申请号 |
US201314416735 |
申请日期 |
2013.07.26 |
| 申请人 |
Asahi Kasei E-materials Corporation |
发明人 |
Miyazawa Hiroshi;Ameyama Keitaro;Shuto Takashi |
| 分类号 |
H01M2/16;B32B37/18 |
主分类号 |
H01M2/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A separator for an electricity storage device comprising a polyolefin microporous film and a thermoplastic polymer coating layer covering at least a part of at least one of surfaces of the polyolefin microporous film, wherein
the thermoplastic polymer coating layer, on the polyolefin microporous film, has a portion containing a thermoplastic polymer and a portion not containing the thermoplastic polymer in a sea-island configuration, the thermoplastic polymer coating layer contains the thermoplastic polymer having at least two glass-transition temperatures, at least one of the glass-transition temperatures is in a range of less than 20° C., and at least one of the glass-transition temperatures is in a range of 20° C. or more. |
| 地址 |
Tokyo JP |
