Using reference electrodes to manage batteries for portable electronic devices
US9698451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2011 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jun 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system uses a reference electrode in the battery to monitor an anode potential of an anode in the battery during charging of the battery in the portable electronic device. If the anode potential falls below an anode potential threshold, the system modifies a charging technique for the battery to extend a cycle life of the battery. For example, the system may reduce a charge current of the battery if the anode potential falls below the anode potential threshold to prevent degradation caused by a negative anode potential during charging of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.