Lithium precipitation detection method for battery pack, computer-readable storage medium, and power consuming apparatus
US11955608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2023 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium precipitation detection method may include: sending, when a battery management module in the battery pack determines that a change in a charging voltage of the battery pack meets a predetermined condition, a charging request containing a first current to a charging pile for charging, and controlling the battery pack to be charged with the first current for a first predetermined duration and a second predetermined duration, where the first predetermined duration is equal to the second predetermined duration; obtaining, by the battery management module, a first voltage change amount within the first predetermined duration and a second voltage change amount within the second predetermined duration; and determining, when the battery management module determines that a difference between the second voltage change amount and the first voltage change amount is greater than a predetermined voltage threshold, that lithium precipitation occurs in the battery pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.