Invention Grant
- Patent Title: Multi-layered coated electrode for lithium-ion battery
-
Application No.: US17354959Application Date: 2021-06-22
-
Publication No.: US11769882B2Publication Date: 2023-09-26
- Inventor: Tae Kyoung Kim , Jun Wang , Ronnie Wilkins , Jordan Rubio , Ankita Faulkner , Zaiyuan Le , Xiqing Wang , Ting Huang
- Applicant: A123 Systems, LLC
- Applicant Address: US MA Waltham
- Assignee: A123 SYSTEMS, LLC
- Current Assignee: A123 SYSTEMS, LLC
- Current Assignee Address: US MA Waltham
- Agency: McCoy Russell LLP
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M4/66 ; H01M4/04 ; H01M10/0525 ; H01M4/505 ; H01M4/525 ; H01M4/62

Abstract:
Systems and methods are provided for an electrode for a lithium-ion battery cell. In one example, the electrode may include a current collector having two opposing sides, at least one of the two opposing sides being configured with a first coating layer disposed on the current collector at a first loading, where the first coating layer may include a first binder in a first weight ratio, and a second coating layer disposed on the first coating layer at a second loading, where the second coating layer may include a second binder in a second weight ratio, wherein the first weight ratio may be greater than the second weight ratio, and a ratio of the first loading to the second loading may be less than 1:2. In this way, direct current internal resistance of the lithium-ion battery cell may be decreased while maintaining or increasing adhesion within the electrode.
Public/Granted literature
- US20210399308A1 MULTI-LAYERED COATED ELECTRODE FOR LITHIUM-ION BATTERY Public/Granted day:2021-12-23
Information query