Invention Grant
- Patent Title: Positive electrode for nonaqueous secondary battery, method for forming the same, nonaqueous secondary battery, and electrical device
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Application No.: US16710468Application Date: 2019-12-11
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Publication No.: US11515517B2Publication Date: 2022-11-29
- Inventor: Takahiro Kawakami , Masaki Yamakaji , Mako Motoyoshi , Rika Yatabe
- Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Applicant Address: JP Atsugi
- Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee Address: JP Atsugi
- Agency: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Priority: JP2012-245467 20121107
- Main IPC: H01M4/1393
- IPC: H01M4/1393 ; H01M4/131 ; H01M4/133 ; H01M4/1391 ; H01M4/36 ; H01M4/62

Abstract:
A positive electrode for a nonaqueous secondary battery including an active material layer which has sufficient electron conductivity with a low ratio of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery including an active material layer which is highly filled with an active material, id est, including the active material and a low ratio of a conductive additive. The active material layer includes a plurality of particles of an active material with a layered rock salt structure, graphene that is in surface contact with the plurality of particles of the active material, and a binder.
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