Methods for prelithiation of silicon containing electrodes
US11342553B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | Oct 2, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M50/411
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application describes a method of forming an energy storage device that directly adds a lithium layer (such as a lithium foil or otherwise deposited lithium) into the cell stack during cell assembly for prelithiating. The method includes providing a silicon-based anode, providing a cathode, positioning a separator between the anode and the cathode, and disposing a lithium layer between the silicon-based anode and the separator, such that the lithium layer is in contact with the anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.