Method of screening high rate electrochemical cells
US11733311B2 · kind B2 · utility
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Key dates
| Filing date | May 21, 2021 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Jun 10, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/392
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of screening a battery for failure mechanisms is provided. The method may include activating an electrochemical cell. Within 5 minutes to two hours of activating the cell, the open circuit voltage of the cell is measured over a period of time to determine a voltage versus time function. The cell is then screened for the presence of a failure mechanism by checking the voltage versus time function for a failure criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.