System and method for depassivating a passivated lithium battery in a battery powered microprocessor controlled device
US4839248A · kind A · utility
23Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Jan 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for depassivating a passivated lithium battery in a battery powered microprocessor controlled device by successively and momentarily drawing current from the passivated battery after a turn on of the device while monitoring the power delivery condition of the battery under a load condition until salt crystals on an electrode of the battery are dissipated and the battery is returned to a useful power delivery condition or until a predetermined period of time has elapsed without the battery returning to the useful power delivery condition, whichever is sooner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.