Battery state estimator with overpotential-based variable resistors
US9176198B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 17, 2012 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jul 16, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery model and equivalent circuit that includes an ohmic resistance, a first RC-pair that models a battery cell charge transfer reaction and double layer processes and a second RC-pair that models battery cell diffusion. Each of the ohmic resistance, the charge transfer reaction resistance and the diffusion resistance in the model are variable resistances, where each resistance changes in response to a change in voltage potential across the resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.