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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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1164680
Assignee:
California Institute of Technology (Pasadena, CA) OAK
Patent Number(s):
8,901,892
Application Number:
13/866,985
Contract Number:
FG03-00ER15035
Resource Relation:
Patent File Date: 2013 Apr 19
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

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