Method for determining a state variable of an electrochemical cell using complex impedance at radioelectric frequencies
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United States of America Patent
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Sep 27, 2016
Grant Date -
Jun 27, 2013
app pub date -
Dec 21, 2012
filing date -
Dec 23, 2011
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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.
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