Invention Grant
- Patent Title: Negative electrode active material and lithium secondary battery including the same
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Application No.: US15746661Application Date: 2017-04-20
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Publication No.: US10714741B2Publication Date: 2020-07-14
- Inventor: Jung Hyun Choi , Yong Ju Lee , Eun Kyung Kim
- Applicant: LG Chem, Ltd.
- Applicant Address: KR
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7dc05d95
- International Application: PCT/KR2017/004249 WO 20170420
- International Announcement: WO2017/204466 WO 20171130
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/587 ; H01M4/38 ; H01M10/0525 ; H01M10/052 ; H01M4/62 ; H01M4/13 ; H01M4/1395 ; H01M4/133 ; H01M4/1393 ; H01M4/134 ; H01M4/02

Abstract:
The present invention relates to a silicon-carbon-based composite negative electrode active material, and a negative electrode for a secondary battery and a lithium secondary battery including the same, and particularly to a silicon-carbon-based composite negative electrode active material, in which physical stability is improved by including a carbon-based core capable of intercalating and deintercalating lithium ions and at least one silicon particle included in the carbon-based core and disposed in the form of being distributed in an outer portion of the carbon-based core, and a negative electrode for a secondary battery and a lithium secondary battery in which life characteristics are improved by including the same.
Public/Granted literature
- US20180219216A1 NEGATIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Public/Granted day:2018-08-02
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