Rechargeable battery short circuit early detection device and rechargeable battery short circuit early detection method
US11624787B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 5, 2020 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jun 27, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rechargeable battery short-circuit early detection device that detects a short-circuit in a rechargeable battery includes one or more processors connected to a current sensor that detects a charging current of the rechargeable battery, wherein the one or more processors are programmed to: while the rechargeable battery is being charged, receive a current signal indicating the charging current from the current sensor; detect a temporal change in the charging current indicated by the current signal; determine, when the charging current increases over time, that there is a possibility that the rechargeable battery has short-circuited; and output data indicating a determined result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.