Journal
JOURNAL OF POWER SOURCES
Volume 195, Issue 24, Pages 7904-7929Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.06.060
Keywords
Ionic conduction; Electrical conduction; Cathode; Anode; Electrolyte; Lithium-ion battery
Funding
- General Motors/University of Michigan
- Department of Energy
- Michigan Economic Development Corporation
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Conduction has been one of the main barriers to further improvements in Li-ion batteries and is expected to remain so for the foreseeable future. In an effort to gain a better understanding of the conduction phenomena in Li-ion batteries and enable breakthrough technologies, a comprehensive survey of conduction phenomena in all components of a Li-ion cell incorporating theoretical, experimental, and simulation studies, is presented here. Included are a survey of the fundamentals of electrical and ionic conduction theories; a survey of the critical results, issues and challenges with respect to ionic and electronic conduction in the cathode, anode and electrolyte; a review of the relationship between electrical and ionic conduction for three cathode materials: LiCoO2, LiMn2O4, LiFePO4; a discussion of phase change in graphitic anodes and how it relates to diffusivity and conductivity; and the key conduction issues with orginic liquid, solid-state and ionic liquid electrolytes. (C) 2010 Elsevier B.V. All rights reserved.
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