Battery cell self-discharge current detection method, apparatus, and device, and computer storage medium
US11894527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2023 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Aug 4, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are a battery cell self-discharge current detection method, apparatus, and device, and a computer storage medium. The method includes: controlling a constant voltage source to start charging a battery cell at a first moment, and acquiring a first rate of change of a target current over time in a first preset duration after the first moment; controlling, in the case where the first rate of change is greater than a first threshold value, a constant current source and the constant voltage source to charge the battery cell; acquiring, in the case of reaching a second moment, a second rate of change of the target current over time in a second preset duration after the second moment, wherein the second moment is a moment when the time for charging the battery cell using the constant current source and the constant voltage source reaches a third preset duration; and determining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.