- 专利标题： Method for producing resin collector for negative electrodes, method for producing negative electrode for lithium ion batteries, and method for producing lithium ion battery
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申请号： US17285682申请日： 2019-10-21
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公开(公告)号： US12015140B2公开(公告)日： 2024-06-18
- 发明人: Ryosuke Kusano , Yasuhiro Tsudo , Yasuji Maruyama , Kazuaki Onishi , Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie
- 申请人： SANYO CHEMICAL INDUSTRIES, LTD. , GUNZE LIMITED
- 申请人地址： JP Kyoto
- 专利权人： SANYO CHEMICAL INDUSTRIES, LTD.,GUNZE LIMITED
- 当前专利权人： SANYO CHEMICAL INDUSTRIES, LTD.,GUNZE LIMITED
- 当前专利权人地址： JP Kyoto; JP Kyoto
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP 18198530 2018.10.22
- 国际申请： PCT/JP2019/041282 2019.10.21
- 国际公布： WO2020/085290A 2020.04.30
- 进入国家日期： 2021-04-15
- 主分类号： H01M4/139
- IPC分类号： H01M4/139 ; B29C48/00 ; B29C48/08 ; B29C48/21 ; H01M4/04 ; H01M4/66 ; H01M10/0525 ; B29K505/08 ; B29L31/34 ; H01M4/02
摘要：
The present invention aims to provide a method for producing a pinhole-free thin resin current collector for negative electrodes. The method for producing a sheet-shaped resin current collector for negative electrodes of the present invention includes stacking three or more layers of melts of conductive resin compositions each containing a polyolefin and a conductive filler to obtain a multilayered body, wherein the polyolefin contained in each of the conductive resin compositions that form the respective layers of the multilayered body has a melt mass flow rate of 15 to 70 g/10 min as measured at a temperature of 230° C. and a load of 2.16 kg in accordance with JIS K7210-1:2014.
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