Self discharge of batteries at high temperatures
US6025699A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0036
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rechargeable battery pack that includes a temperature monitoring circuit a rechargeable battery, and a discharge circuit, advantageously provides a battery pack which senses when the battery pack is exposed to a harmful temperature and cause the discharge circuit to discharge electricity stored in the battery until the battery's charge level is reduced to a safe level for the particular temperature. The rechargeable battery has a positive terminal and a negative terminal. The discharge circuit is coupled to the rechargeable battery. A controller is coupled to the discharge circuit. The temperature monitoring circuit is coupled to the controller and measures a temperature of the battery, providing a temperature indication to the controller. The controller causes the discharge circuit to discharge electricity from the battery based upon the temperature indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.