Method of battery chemistry identification through analysis of voltage behavior
US6404164B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of identifying battery chemistry of a battery in an electronic device monitors voltage behavior of the battery in response to a stimulus. The method can be performed in the electronic device while the device is in normal operation without affecting battery life or the user's enjoyment. Further, the method can be performed many times within the device also without compromising battery life or user enjoyment. A system implements the method in the electronic device. The present invention provides for more accurate battery fuel gauging, such that a battery's end of life is more readily determinable, and allows for various battery chemistries to be drained to their optimal cutoff voltage, and allows for the safe in-device charging of rechargeable batteries that are the same size and shape as non-rechargeable batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.