Characteristic estimation device for storage battery and characteristic estimation method for storage battery
US12072383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Jun 10, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a characteristic estimation device for a storage battery including: a voltage detection unit configured to detect a terminal voltage of the storage battery; a time-series data acquisition unit configured to acquire time-series data on the terminal voltage in a stopped state of the storage battery; a model provision unit configured to provide a storage battery model; and a model parameter estimation unit configured to estimate a model parameter of the storage battery model based on the time-series data on the terminal voltage acquired by the time-series data acquisition unit and on the storage battery model provided by the model provision unit. The storage battery model includes an OCV term for expressing OCV of the storage battery and an interparticle diffusion term which is based on a fundamental solution of a one-dimensional diffusion equation expressing ion diffusion among particles forming electrodes of the storage battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.