Invention Grant
- Patent Title: Multi-layer negative electrode comprising natural graphite and artificial graphite and lithium secondary battery comprising the same
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Application No.: US17850570Application Date: 2022-06-27
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Publication No.: US12113220B2Publication Date: 2024-10-08
- Inventor: Taek Soo Lee , Chang Wan Koo , Sang Hoon Choi , Jung Min Yang , Il Jae Moon
- Applicant: LG ENERGY SOLUTION, LTD.
- Applicant Address: KR Seoul
- Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR 20160125261 2016.09.29 KR 20170124177 2017.09.26
- Main IPC: H01M4/587
- IPC: H01M4/587 ; H01M4/02 ; H01M4/133 ; H01M4/36 ; H01M4/62 ; H01M10/0525

Abstract:
The present disclosure relates to a multilayer negative electrode comprising a negative electrode current collector configured to transfer electrons between an outer lead and a negative electrode active material, a first negative electrode mixture layer formed on one surface or both surfaces of the current collector and containing natural graphite as a negative electrode active material and a second negative electrode mixture layer formed on the first negative electrode mixture layer and containing artificial graphite as a negative electrode active material, and a lithium secondary battery including the same.
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