Invention Grant
- Patent Title: Electrochemical cell for lithium-based batteries
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Application No.: US14724703Application Date: 2015-05-28
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Publication No.: US10593988B2Publication Date: 2020-03-17
- Inventor: Xingcheng Xiao , John S. Wang
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: H01M10/0525
- IPC: H01M10/0525 ; H01M2/16 ; C25D7/06 ; H01M10/058 ; H01M10/052 ; H01M4/139 ; H01M10/04 ; H01M4/04

Abstract:
An electrochemical cell is formed. The cell includes a non-lithium negative electrode in contact with a lithium ion permeable negative electrode current collector, and a positive electrode disposed in contact with a lithium ion permeable positive electrode current collector. The non-lithium negative electrode and the positive electrode are lithium ion permeable. The cell also has a lithium source electrode including lithium ions. A respective microporous polymer separator is disposed between the lithium source electrode and each of the negative and positive electrodes; or a first separator is disposed between the lithium source electrode and one of the negative and positive electrodes, and a second separator is disposed between the negative and positive electrodes. An electrolyte is introduced into the electrochemical cell. A voltage potential is applied across the electrochemical cell to pre-lithiate any of the non-lithium negative electrode and positive electrode with lithium ions from the lithium source electrode.
Public/Granted literature
- US20150263379A1 ELECTROCHEMICAL CELL FOR LITHIUM-BASED BATTERIES Public/Granted day:2015-09-17
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