- Patent Title: Binder composition for secondary battery porous membrane, slurry for secondary battery porous membrane, porous membrane for secondary battery, and secondary battery
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Application No.: US15116634Application Date: 2015-02-03
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Publication No.: US10256446B2Publication Date: 2019-04-09
- Inventor: Yuuki Ohkubo
- Applicant: ZEON CORPORATION
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Kenja IP Law PC
- Priority: JP2014-036336 20140227
- International Application: PCT/JP2015/053011 WO 20150203
- International Announcement: WO2015/129408 WO 20150903
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01M4/13 ; C08F220/18 ; H01M4/62 ; C08K3/22 ; C08L33/06 ; H01M2/14 ; H01M10/0525 ; H01M10/052
Abstract:
A binder composition for a porous membrane of a secondary battery, including a polycarboxylic acid and water, wherein the polycarboxylic acid includes a carboxylic acid group-containing monomer unit in an amount of 20% by weight or more and 50% by weight or less, the polycarboxylic acid is water-insoluble at a pH of 6.5 or less and water-soluble at a pH of 8 or more, and the binder composition for a porous membrane of a secondary battery has a pH of 6.5 or less; and a slurry for a porous membrane of a secondary battery using the binder composition, a porous membrane for a secondary battery, and a secondary battery.
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