Electrochemical cell for lithium-based batteries
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.
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