期刊
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
卷 190, 期 -, 页码 64-74出版社
ELSEVIER
DOI: 10.1016/j.elspec.2013.03.008
关键词
Soft X-ray spectroscopy; Key electronic state; Lithium ion battery; Anode; Cathode; Solid electrolyte interphase (SEI)
类别
资金
- Laboratory Directed Research and Development (LDRD) at Lawrence Berkeley National Laboratory (LBNL)
- Office of Science, Office of Basic Energy Sciences, of the U.S. DOE [DE-AC02-05CH11231]
- Berkeley Lab CSEE
- ALS
The formidable challenges for developing a safe, low-cost, high-capacity, and high-power battery necessitate employing advanced tools that are capable of directly probing the key electronic states relevant to battery performance. Synchrotron based soft X-ray spectroscopy directly measures both the occupied and unoccupied states in the vicinity of the Fermi level, including transition-metal-3d and anion-p states. This article presents the basic concepts on how fundamental physics in electronic structure could provide valuable information for lithium-ion battery applications. We then discuss some of our recent studies on transition-metal oxide based cathodes, silicon based anode, and solid-electrolyte-interphase through soft X-ray absorption and emission spectroscopy. We argue that spectroscopic results reveal the evolution of electronic states for fingerprinting, understanding, and optimizing lithium-ion battery operations. Published by Elsevier B.V.
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