Secondary battery charging apparatus, temperature information acquisition device, secondary battery charging method, in-situ measurement method of electrochemical impedance spectrum
US10847988B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Feb 1, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary battery charging apparatus includes: a charge control device configured to control charge current for charging a secondary battery; and a temperature information acquisition device configured to acquire an internal temperature of the secondary battery, the temperature information acquisition device collects charge current data and charge voltage data in time series and acquires the internal temperature of the secondary battery based on the collected charge current data and charge voltage data when the secondary battery is charging, and the charge control device is configured to charge the secondary battery and control the charge current to set the internal temperature of the secondary battery within a predetermined temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.