Systems and method of battery charging assisted by heating
US11367910B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2019 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Dec 1, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rapid heating-charging process for charging a rechargeable battery is disclosed. Such a process can be implemented by an integrated heating and battery system can include a rechargeable battery and a heating element in thermal contact with the at least one cell of the battery and electrically connected in series to a switch wherein the heating element and switch form a switch-heater assembly. The switch-heater assembly can be electrically connected in parallel with the battery to form a battery-switch-heater circuit. Advantageously, the battery-switch-heater circuit is configured to be directly electrically engaged with a charger so that the heating element is powered mainly by the charger and electrically connected to the battery when the heating element is powered by the charger. Such a system can be used in a charging operation to pre-heat the battery to a predetermined charging temperature which advantageously improves charge kinetics and reduce charge overpotential, thereby enabling fast charging and charging at a variety of temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.