Invention Grant
- Patent Title: Lithium secondary battery
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Application No.: US15915982Application Date: 2018-03-08
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Publication No.: US10651474B2Publication Date: 2020-05-12
- Inventor: Toru Ujihara , Kohei Ishikawa
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC CORPORATION
- Current Assignee: PANASONIC CORPORATION
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4a05d03c
- Main IPC: H01M4/66
- IPC: H01M4/66 ; H01M4/134 ; H01M4/75 ; H01M4/38 ; H01M10/0525 ; H01M10/0569 ; H01M10/052 ; H01M4/1395 ; H01M4/02

Abstract:
A lithium secondary battery has a positive electrode, an electrolyte containing lithium ions, and a negative electrode current collector having a surface on which a lithium metal or a lithium alloy is deposited/dissolved. In the surface of the negative electrode current collector, a group comprising at least one region whose principal crystal plane is a close-packed plane of the crystal structure or an off plane having an off-angle of 20° or less with respect to the close-packed plane occupies the largest area among three or four groups each comprising at least one region having a principal crystal plane three of whose Miller indices are each represented by 0 or 1 or an off-plane having an off-angle of 20° or less with respect to the principal crystal plane, the principal crystal plane being different for each of the three or four groups.
Public/Granted literature
- US20180198131A1 LITHIUM SECONDARY BATTERY Public/Granted day:2018-07-12
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