Method for determining a state variable of an electrochemical cell using complex impedance at radioelectric frequencies
US9453884B2 · kind B2 · utility
7Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for determining a state variable such as aging of an electrochemical cell comprising an electrode plate group, that includes analyzing at least a portion of a response spectrum of the electrochemical cell to application of an electromagnetic wave in a frequency ranging from 10 kHz to 10 GHz, so as to determine an indicator of the value of the state variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.