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Thermodynamic study of lithium-ion battery materials

Published online by Cambridge University Press:  25 April 2012

Denis Y.W. Yu ,
Yvan Reynier ,
Joanna Dodd Cardema ,
Yasunori Ozawa  and
Rachid Yazami
Denis Y.W. Yu
Affiliation:
Energy Research Institute @ NTU, Nanyang Technological University, Singapore 637553, Singapore
Yvan Reynier
Affiliation:
CNRS-Caltech Materials for Electrochemical Energetics Laboratory, California Institute of Technology, MC 138-78, Pasadena, CA 91125, USA
Joanna Dodd Cardema
Affiliation:
CNRS-Caltech Materials for Electrochemical Energetics Laboratory, California Institute of Technology, MC 138-78, Pasadena, CA 91125, USA
Yasunori Ozawa
Affiliation:
CNRS-Caltech Materials for Electrochemical Energetics Laboratory, California Institute of Technology, MC 138-78, Pasadena, CA 91125, USA
Rachid Yazami
Affiliation:
Energy Research Institute @ NTU, Nanyang Technological University, Singapore 637553, Singapore CNRS-Caltech Materials for Electrochemical Energetics Laboratory, California Institute of Technology, MC 138-78, Pasadena, CA 91125, USA
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Abstract

The ability to monitor the status of a battery during charge and discharge is important for predicting its performance and life. This is typically done by measuring the voltage and resistance across the terminals, or by external characterization methods such as X-ray diffraction and Raman spectroscopy. Thermodynamics measurements based on entropy and enthalpy provide another mean to “look inside” a battery, giving us more information to determine the state of health of the battery. In particular, entropy undergoes drastic changes at boundaries of phase transitions taking place in each electrode material at defined states of charge (lithium stoichiometry). Recent work on thermodynamics study on lithium ion battery materials is summarized in this paper.

Keywords

energy storagephase transformationelectrochemical synthesis
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1388: Symposium F – Mobile Energy , 2012 , mrsf11-1388-f12-07
Copyright
Copyright © Materials Research Society 2012

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