Method and device for estimating state of power of battery system
US12392837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Feb 8, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3828
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention discloses a method and a device for estimating the SOP of a battery system, which may effectively track the OCV change and impedance change under the current operating conditions of the battery system based on the amount of lithium intercalation in multiple predetermined positions in the active material in the battery of the battery system in the current operating condition, thereby determining the first dynamic correspondence between OCV and SOC under the current operating condition and the second dynamic correspondence between impedance and SOC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.