Method and device for calculating state of health of battery
US12235327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | May 27, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for calculating state of health of battery, performed by a processing control circuit, includes: charging a battery under test to an upper voltage with a first constant current through a charging circuit and an electrical measuring circuit, discharging the battery under test to a lower voltage with a second constant current through the charging circuit and the electrical measuring circuit, obtaining an accumulated discharge capacity from the upper voltage to the lower voltage through the electrical measuring circuit, and calculating a state of health of the battery under test at least according to the accumulated discharge capacity and a design capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.