Electrochemical cell for lithium-based batteries
US10593988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2015 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Aug 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.