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Title: Methods and systems for thermodynamic evaluation of battery state of health

Described are systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and battery systems and for characterizing the state of health of electrodes and battery systems. Measurement of physical attributes of electrodes and batteries corresponding to thermodynamically stabilized electrode conditions permit determination of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and battery systems, such as energy, power density, current rate, cycle life and state of health. Also provided are systems and methods for charging a battery according to its state of health.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1164680
Report Number(s):
8,901,892
13/866,985
DOE Contract Number:
FG03-00ER15035
Resource Type:
Patent
Research Org:
California Institute of Technology, Pasadena, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 30 DIRECT ENERGY CONVERSION