Invention Grant
- Patent Title: Positive electrode active substance for lithium secondary battery, method for producing the same and lithium secondary battery
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Application No.: US17273417Application Date: 2019-10-09
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Publication No.: US11646408B2Publication Date: 2023-05-09
- Inventor: Masahiro Kikuchi , Tomonao Naruhashi , Minoru Fukuchi
- Applicant: NIPPON CHEMICAL INDUSTRIAL CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: NIPPON CHEMICAL INDUSTRIAL CO., LTD.
- Current Assignee: NIPPON CHEMICAL INDUSTRIAL CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: WHDA, LLP
- Priority: JP 2018194173 2018.10.15
- International Application: PCT/JP2019/039748 2019.10.09
- International Announcement: WO2020/080211A 2020.04.23
- Date entered country: 2021-03-04
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/525 ; H01M4/58 ; H01M10/052 ; H01M10/0525 ; H01M4/02

Abstract:
The positive electrode active substance for a lithium secondary battery includes a mixture of a lithium cobalt composite oxide particle and an inorganic fluoride particle. The method for producing a positive electrode active substance for a lithium secondary battery includes a first step of subjecting a lithium cobalt composite oxide particle and an inorganic fluoride particle to a mixing treatment to thereby obtain a mixture of the lithium cobalt composite oxide particle and the inorganic fluoride particle. The lithium secondary battery uses, as a positive electrode active substance, the positive electrode active substance for a lithium secondary battery of the present invention.
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