Absorption of polarized X-rays by V2O5-based cathodes for lithium batteries:: an application

被引:22
作者
Giorgetti, M [1 ]
Berrettoni, M
Passerini, S
Smyrl, WH
机构
[1] Univ Bologna, Dept Phys & Inorgan Chem, I-40136 Bologna, Italy
[2] ENEA, TEA, ECHI, CR Casaccia, I-0060 Rome, Italy
[3] Univ Minnesota, Dept Chem Engn & Mat Sci, Corros Res Ctr, Minneapolis, MN 55455 USA
关键词
XAS; V2O5; nanocomposites; cathode;
D O I
10.1016/S0013-4686(02)00235-9
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Vanadium pentoxide materials prepared through sol-gel processes (xerogel, aerogel and aerogel-like) act as excellent intercalation hosts for lithium as well as for polyvalent cations. The large lithium insertion capacity of these materials makes them attractive for use as cathodes in high capacity lithium batteries. This paper describes the utility of X-Ray absorption spectroscopy (XAS) for the investigation of gel-based V2O5 materials. In particular, X-ray near edge structure (XANES) and polarized EXAFS experiments are highlighted. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3163 / 3169
页数:7
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