Invention Grant
- Patent Title: Slurry composition for secondary battery negative electrode, negative electrode for secondary battery, and secondary battery
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Application No.: US15574836Application Date: 2016-05-13
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Publication No.: US10784502B2Publication Date: 2020-09-22
- Inventor: Norikazu Yamamoto , Shigeru Shuto , Julien Delmas
- 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: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2d932748
- International Application: PCT/JP2016/002367 WO 20160513
- International Announcement: WO2016/199353 WO 20161215
- Main IPC: H01M4/133
- IPC: H01M4/133 ; H01M4/587 ; H01M4/1393 ; H01M4/62 ; H01M10/0525 ; C08K3/04 ; H01M4/02 ; H01M4/04

Abstract:
Provided is a slurry composition for a secondary battery negative electrode that has excellent producibility and can suppress cell swelling and an increase in internal resistance in a secondary battery. The slurry composition for a secondary battery negative electrode contains a negative electrode active material, a particulate polymer, and water. The negative electrode active material includes a carbon-based negative electrode active material having a surface functional group content of at least 0.9% and not more than 1.5%, and a BET specific surface area of 2.5 m2/g or less. The particulate polymer has a surface acid content of at least 0.2 mmol/g and not more than 2.0 mmol/g.
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