- Patent Title: Negative electrode plate and secondary battery comprising the same
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Application No.: US16199240Application Date: 2018-11-26
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Publication No.: US10658703B2Publication Date: 2020-05-19
- Inventor: Jiazheng Wang , Meng Kang , Tianquan Peng , Yuliang Shen , Libing He
- Applicant: Contemporary Amperex Technology Co., Limited
- Applicant Address: CN Ningde
- Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee Address: CN Ningde
- Agency: Law Offices of Liaoteng Wang
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@41d1c7fc
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M10/0583 ; H01M4/04 ; H01M4/587 ; H01M4/133 ; H01M4/66 ; H01M10/04 ; H01M4/02

Abstract:
The disclosure relates to a negative electrode plate and a secondary battery comprising the same. Specifically, the disclosure provides a negative electrode plate comprising a negative electrode current collector and a negative electrode layer coated on at least one surface of the negative electrode current collector, the negative electrode layer comprising a negative electrode active material, wherein the negative electrode active material comprises graphite, and the negative electrode layer meets: 4×L×VOI−¼×Dn10≤25, wherein L represents the thickness of single-side negative electrode layer on the negative electrode current collector in millimeter; Dn10 represents the particle diameter corresponding to 10% of the number distribution of particles of the negative electrode active material in micrometer; VOI represents the orientation index of the negative electrode layer. The negative electrode plate can allow that a secondary battery containing the same has the combination of high energy density, fast charge, and long cycle life.
Public/Granted literature
- US20190097271A1 NEGATIVE ELECTRODE PLATE AND SECONDARY BATTERY COMPRISING THE SAME Public/Granted day:2019-03-28
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