Invention Grant
- Patent Title: Negative electrode for secondary battery, and secondary battery including same
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Application No.: US17511744Application Date: 2021-10-27
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Publication No.: US12034164B2Publication Date: 2024-07-09
- Inventor: Kwang Ho Jeong , Hyun Joong Jang , Da Bin Chung
- Applicant: SK ON CO., LTD.
- Applicant Address: KR Seoul
- Assignee: SK On Co., Ltd.
- Current Assignee: SK On Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: The Webb Law Firm
- Priority: KR 20200142111 2020.10.29
- Main IPC: H01M4/583
- IPC: H01M4/583 ; H01M4/02 ; H01M4/48 ; H01M4/62

Abstract:
A negative electrode for a secondary battery includes: a current collector; a first negative electrode active material layer formed on the current collector and containing a first active material; and a second negative electrode active material layer formed on the first negative electrode active material layer and containing a second active material. The second active material is a bimodal active material including small particles and large particles having different particle sizes, a particle size (D2) of the second active material is smaller than a particle size (D1) of the first active material, and the particle size of the second active material is an average particle size of the small particles and the large particles.
Public/Granted literature
- US20220140342A1 Negative Electrode for Secondary Battery, and Secondary Battery Including Same Public/Granted day:2022-05-05
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