Method, system and device for balancing individual electric energy storage cells
US10833513B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | May 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0018
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems for monitoring individual cell voltages of an energy storage system. The measured cell voltages can be reported back to a central controller. Based on parameters such as the overall health of the system, this controller can be adapted to decide which cells to balance, in which direction and optionally for how long. Balancing can be performed by cell monitoring and balancing units which can be implemented in hardware, i.e. as one or more circuits. The decision information from the controller can be reported to the cell monitoring and balancing units as a command. The cell monitoring and balancing means can execute the command, for example irrespective of the voltage or SoC of the cell connected to it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.