Early warning method for abnormal state of lithium battery and recording medium
US8125191B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jun 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An early warning method for an abnormal state of a lithium battery and a recording medium applicable to a portable electronic device are provided. The method includes the following steps. A plurality of curves of voltage against electric quantity is obtained according to different predicted average current consumptions of the portable electronic device. An operating average current consumption and an operating electric quantity from a first voltage to a second voltage are obtained when the lithium battery at an operating test state in a unit time. One of the curves of voltage against electric quantity is searched, and a warning electric quantity is obtained in a range from the first voltage to the second voltage. The warning electric quantity is compared with the electric quantity, so as to provide an early warning of an abnormal state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.