Invention Grant
- Patent Title: Slurry for electrode material, method for producing slurry for electrode material, negative electrode, battery, and polyimide-coated active material particles
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Application No.: US15552084Application Date: 2016-02-17
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Publication No.: US10686187B2Publication Date: 2020-06-16
- Inventor: Kae Fujiwara
- Applicant: I.S.T Corporation
- Applicant Address: JP Shiga
- Assignee: I.S.T CORPORATION
- Current Assignee: I.S.T CORPORATION
- Current Assignee Address: JP Shiga
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@453ba674
- International Application: PCT/JP2016/054516 WO 20160217
- International Announcement: WO2016/136543 WO 20160901
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/62 ; H01M4/13 ; C08G73/10 ; H01M4/587 ; H01M4/38 ; H01M4/48 ; H01M10/0525 ; H01M10/0569 ; H01M4/02
Abstract:
A polyimide-coated active material particle (21) of the present invention includes an active material particle (23) and a polyimide layer (24) derived from a monomeric polyimide precursor and coated on the active material particle (23). A negative electrode (200) of the present invention includes a current collector (30) and an active material layer (20) including the negative electrode active material particle (21) coated with the polyimide layer (24) derived from a monomeric polyimide precursor, and an aqueous binder (22). With the polyimide-coated active material particle of the present invention, it is possible to suppress the amount of organic solvent used and improve the charge-discharge cycle of the electrode.
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