Method and device for fast-charging of rechargeable batteries
US9368984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for fast charging of a lithium-ion battery, including: continuously monitoring a state of charge (SOC) of the lithium-ion battery; during a normal mode of operation and upon detecting that the battery is at the predetermined low charge level, discontinuing the discharge; upon detecting that the battery is connected to a charger, providing charging rate of at least 4 C for at least part of charging; and upon detecting that the battery, while connected to the charger is at the predetermined high charge level, discontinue the charging, wherein the predetermined low charge level and the predetermined high charge level define a consumable capacity of the battery, wherein the consumable capacity is below 50% of the full capacity of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.