State of health recognition of secondary batteries
US8427166B2 · kind B2 · utility
2Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An invention is provided for determining a state of health of a battery. The invention includes applying a predefined load profile to a battery, and obtaining a plurality of battery response voltage data corresponding to points along the predefined load profile. The battery electrical double layer capacity data is calculated from the battery response voltage data, and thereafter utilized to determine the state of health of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.