Invention Grant
- Patent Title: Negative electrode for lithium secondary battery and lithium secondary battery comprising same
-
Application No.: US17930676Application Date: 2022-09-08
-
Publication No.: US11646422B2Publication Date: 2023-05-09
- Inventor: Inoh Cha , Deok-Hyun Kim , Jinhee Lee
- Applicant: SAMSUNG SDI CO., LTD.
- Applicant Address: KR Yongin-si
- Assignee: Samsung SDI Co., Ltd.
- Current Assignee: Samsung SDI Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR 20170147446 2017.11.07
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/66 ; H01M4/62 ; H01M10/0525 ; H01M4/02

Abstract:
The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising the same. The negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cm2 to 30 mg/cm2, a loading level of the first active material layer is 4 mg/cm2 to 25 mg/cm2, a loading level of the second active material layer is 4 mg/cm2 to 25 mg/cm2, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.
Public/Granted literature
- US20230006212A1 NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME Public/Granted day:2023-01-05
Information query