Invention Grant
- Patent Title: Negative electrode and non-aqueous electrolyte secondary battery including the same
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Application No.: US16101652Application Date: 2018-08-13
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Publication No.: US10763498B2Publication Date: 2020-09-01
- Inventor: Kazuhisa Takeda , Yuji Yokoyama
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@77c70f5e
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/485 ; H01M4/134 ; H01M4/133 ; H01M10/0525 ; H01M4/62 ; H01M4/66 ; H01M2/30 ; H01M2/08 ; H01M10/42 ; H01M4/48 ; H01M4/02

Abstract:
A negative electrode for a non-aqueous electrolyte secondary battery of the present disclosure includes a negative electrode current collector, a negative electrode composite material layer formed on the surface of the negative electrode current collector. The negative electrode composite material layer includes a negative electrode active material containing silicon oxide and heat expandable microcapsules. The ratio of silicon oxide to the total amount of the negative electrode active material is 30 mass % or less. The blending ratio of the heat expandable microcapsules to the total amount of the negative electrode active material is 0.5 mass % or more. The ratio of the heat expandable microcapsules in contact with silicon oxide to the amount of the heat expandable microcapsules contained in the negative electrode composite material layer is 70 mass % or more.
Public/Granted literature
- US20190115592A1 NEGATIVE ELECTRODE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME Public/Granted day:2019-04-18
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