Method for monitoring end of life for battery
US7580749B2 · kind B2 · utility
3Cited by
66References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system is described. The system includes a lithium battery, a charge storage capacitor electrically connected to the lithium battery, a first device, and at least one second device. The first device is electrically connected to the lithium battery and is powered by the lithium battery. The at least one second device is attached to the charge storage capacitor and adapted to read a rate of charge storage in the charge storage capacitor or to calculate the rate of charge storage by measuring both a time of charging and a charge stored or added to the charge storage capacitor during the time of charging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.