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Title: Methods for thermodynamic evaluation of battery state of health

Patent ·
OSTI ID:1083971

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.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG03-00ER15035; FG02-03ER15425
Assignee:
California Institute of Technology (Pasadena, CA); Centre National de la Recherche Scientifique (Paris, FR)
Patent Number(s):
8,446,127
Application Number:
12/537,712
OSTI ID:
1083971
Country of Publication:
United States
Language:
English

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