共 11 条
[11]
ZHURAVLEV VD, 1987, ZH NEORG KHIM+, V32, P3060
Lithiation characteristics of Cu5V2O10
被引：12
作者：
Eguchi, M
Komamura, A
Miura, T
Kishi, T
机构：
[1] Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama 223, Hiyoshi 3-14-1, Kohoku-ku
关键词：
Cu5V2O10;
lithium insertion;
ESR spectra;
IR spectra;
open-circuit potential;
discharge curve;
D O I：
10.1016/0013-4686(95)00374-6
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Lithiation characteristics of a complex oxide containing V(V) and Cu(II), Cu5V2O10, were investigated. Lithiation was carried out chemically using an n-BuLi/hexane solution. The valence stales of copper and vanadium and the structural changes upon lithiation were analyzed using esr, XRD and ir measurements. It was revealed that reduction processes occurred consecutively with an increasing extent of lithiation, x = Li/(5 Cu + 2 V). Up to x = 3, preferential reduction of Cu(II) to Cu(I) occurred in the single phase. At 3 < x, Cu(II) was reduced to Cu(O) and Cu(II) (LiCuVO4) in the multiphase system. Above about x = 6, LiCuVO4 was further reduced to metallic copper. The open-circuit potentials of lithiated Cu5V2O10 decreased with x gradually at 0 < x < 3, and has a plateau at x > 3.
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页码：857 / 861
页数：5
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