基本信息:
- 专利标题： Porous film, separator and a storage device for the storage device
- 申请号：JP2012508850 申请日：2012-02-02
- 公开(公告)号：JP5083479B2 公开(公告)日：2012-11-28
- 发明人： 聡一 藤本 , 琢也 久万 , 正寿 大倉
- 申请人： 東レ株式会社
- 专利权人： 東レ株式会社
- 当前专利权人： 東レ株式会社
- 优先权： JP2011021319 2011-02-03; JP2011274129 2011-12-15
- 主分类号： C08J9/00
- IPC分类号： C08J9/00 ; H01M2/16
摘要：
A porous film that excels when used as a separator for a lithium-ion battery not only in separator followability to expansion and contraction of an electrode during charging and discharging, but also in charging and discharging cycle characteristics. The porous film, when the thickness of a circular region having a diameter of 10 mm as an initial thickness t0 after a load of 50 g is applied onto the circular region for 10 seconds, as a thickness t after a load of 500 g is subsequently applied onto the same region for 10 seconds, and as a thickness t1 after 10 seconds has passed after the load applied onto the same region is subsequently changed to 50 g, the thickness change rate is 10% to 50%, and the thickness (t1) recovery rate is 80% to 99.9%.
公开/授权文献:
- JPWO2012105660A1 多孔性フィルム、蓄電デバイス用セパレータおよび蓄電デバイス 公开/授权日：2014-07-03