Invention Grant
- Patent Title: Method of preparing negative electrode for lithium secondary battery
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Application No.: US16771601Application Date: 2019-01-25
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Publication No.: US11929487B2Publication Date: 2024-03-12
- Inventor: Oh Byong Chae , Sang Wook Woo , Je Young Kim , Yoon Ah Kang , Jun Hyuk Song
- Applicant: LG CHEM, 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 20180009254 2018.01.25
- International Application: PCT/KR2019/001126 2019.01.25
- International Announcement: WO2019/147084A 2019.08.01
- Date entered country: 2020-06-10
- Main IPC: H01M4/134
- IPC: H01M4/134 ; H01M4/02 ; H01M4/133 ; H01M4/1393 ; H01M4/1395 ; H01M4/36 ; H01M4/66 ; H01M10/0525 ; H01M50/46

Abstract:
A method of preparing a negative electrode for a lithium secondary battery, which includes forming a negative electrode mixture layer including a negative electrode active material on a negative electrode current collector, disposing lithium metal powder on at least a part of the negative electrode mixture layer, pressing the negative electrode mixture layer on which the lithium metal powder is disposed, wetting the pressed negative electrode mixture layer with a first electrolyte solution, and drying the wet negative electrode mixture layer. A battery including the negative electrode of the present invention has enhanced rapid charge/discharge characteristics and enhanced lifespan characteristics.
Public/Granted literature
- US20200303722A1 METHOD OF PREPARING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY Public/Granted day:2020-09-24
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