| 发明名称 |
POLYOLEFIN MICROPOROUS MEMBRANE AND PRODUCTION METHOD THEREOF |
| 摘要 |
A polyolefin microporous membrane is disclosed. The membrane includes at least one microporous membrane layer, where the microporous membrane layer has an air permeability between about 100 sec/100 cc and about 220 sec/100 cc, a pin puncture strength of at least 550 gf, and a crystallization half time t1/2 of from 10 to 35 minutes when subjected to isothermal crystallization at 117° C. The air permeability and the pin puncture strength are normalized to a thickness of 16 μm. |
| 申请公布号 |
US2017092920(A1) |
申请公布日期 |
2017.03.30 |
| 申请号 |
US201515312558 |
申请日期 |
2015.05.28 |
| 申请人 |
TORAY BATTERY SEPARATOR FILM CO., LTD. |
发明人 |
MATSUMOTO Tomiko;SUGATA Masami;KONO Koichi |
| 分类号 |
H01M2/16;C08J5/18;H01M2/14;C08J9/28 |
主分类号 |
H01M2/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A polyolefin microporous membrane, comprising:
at least one microporous membrane layer, wherein the microporous membrane layer has an air permeability between about 100 sec/100 cc and about 220 sec/100 cc, a pin puncture strength of at least 550 gf, and a crystallization half time t1/2 of from 10 to 35 minutes when subjected to isothermal crystallization at 117° C., wherein the air permeability and the pin puncture strength are normalized to a thickness of 16 μm. |
| 地址 |
Nasushiobara-shi, Tochigi Prefecture JP |
