Invention Grant
- Patent Title: Negative electrode active material layer with controlled reflectance and lithium ion secondary battery
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Application No.: US17232208Application Date: 2021-04-16
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Publication No.: US11757098B2Publication Date: 2023-09-12
- Inventor: Keitaro Otsuki , Tetsu Sato , Masahiro Saegusa
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 18044310 2018.03.12 JP 18241198 2018.12.25
- Main IPC: H01M4/587
- IPC: H01M4/587 ; H01M10/0525 ; H01M10/0569 ; H01M4/133 ; H01M4/02
Abstract:
A negative electrode includes a current collector and a negative electrode active material layer that is provided on the current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a spectral reflectance Ra in a range of 7.0≤Ra≤10.8% at a wavelength of 550 nm.
Public/Granted literature
- US20210234168A1 NEGATIVE ELECTRODE ACTIVE MATERIAL LAYER WITH CONTROLLED REFLECTANCE AND LITHIUM ION SECONDARY BATTERY Public/Granted day:2021-07-29
Information query
