| 摘要 |
<p>A method for testing an electrochemical system includes obtaining complex impedance data for the electrochemical system at multiple frequencies; fitting the complex impedance data to two or more models of the system to obtain a set of fitted parameters; and deriving a value for a characteristic of the electrochemical system based upon parameters of the set of fitted parameters. The electrochemical system may be an electrochemical battery. The characteristic may be a state of health, state of charge, or other characteristic of a battery.</p> |
