发明申请
- 专利标题： Method for Reducing Self Discharge in an Electrochemical Cell
- 专利标题（中）： 减少电化学电池自放电的方法
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申请号： US13477470申请日： 2012-05-22
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公开(公告)号： US20130133166A1公开(公告)日： 2013-05-30
- 发明人: T. Joseph Dennes , Stephen Mazur
- 申请人： T. Joseph Dennes , Stephen Mazur
- 申请人地址： US DE Wilmington
- 专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人地址： US DE Wilmington
- 主分类号： H01M2/14
- IPC分类号： H01M2/14 ; H01G9/00
摘要：
A method for reducing the self discharge rate and the variability in the self discharge rate of an electrochemical cell, wherein a porous separator is inserted between a cathode and an anode of the cell and the porous separator contains a nanoweb that comprises a plurality of nanofibers that may contain a fully aromatic polyimide and the fully aromatic polyimide has a degree of imidization of greater than 0.51 where degree of imidization is the ratio of the height of the imide C—N absorbance at 1375 cm−1 to the C—H absorbance at 1500 cm−1.
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