基本信息:
- 专利标题： NON-AQUEOUS SECONDARY BATTERY SEPARATOR AND NON-AQUEOUS SECONDARY BATTERY
- 申请号：EP20772919.5 申请日：2020-03-23
- 公开(公告)号：EP3920264A1 公开(公告)日：2021-12-08
- 发明人： SATO, Megumi , KURATANI, Rika , NAGAO, Yu , OKAZAKI, Masato , NISHIKAWA, Satoshi
- 申请人： Teijin Limited
- 申请人地址： JP Osaka 530-0005 2-4, Nakanoshima 3-chome, Kita-ku, Osaka-shi,
- 代理机构： Carpmaels & Ransford LLP
- 优先权： JP2019052384 20190320
- 国际公布： WO2020189796 20200924
- 主分类号： H01M2/16
- IPC分类号： H01M2/16
摘要：
An embodiment of the invention provide a separator for a non-aqueous secondary battery, including a porous substrate; and a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a binder resin and barium sulfate particles, in which an average primary particle diameter of the barium sulfate particles contained in the heat-resistant porous layer is from 0.01 µm to less than 0.30 µm, and in which a volume ratio of the barium sulfate particles in the heat-resistant porous layer is from 30% by volume to less than 50% by volume.
公开/授权文献:
IPC结构图谱:
| H | 电学 |
| --H01 | 基本电气元件 |
| ----H01M | 用于直接转变化学能为电能的方法或装置，例如电池组 |
| ------H01M2/00 | 非活性部件的结构零件或制造方法 |
| --------H01M2/14 | .隔板；薄膜；膜片；间隔元件 |
| ----------H01M2/16 | ..按材料区分的 |