In-situ battery health detector and end-of-life indicator
US8415926B2 · kind B2 · utility
23Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Dec 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide a system that monitors a battery in a portable electronic device. During operation, the system applies a pulse load to the battery and determines an impedance of the battery by measuring a voltage of the battery during the pulse load. Next, the system assesses a health of the battery based on the impedance. Finally, the system uses the assessed health to manage use of the battery in the portable electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.