LiVP2O7:: A viable lithium-ion cathode material?

被引：22

作者：

Barker, J ^{[1
]}

Gover, RKB ^{[1
]}

Burns, P ^{[1
]}

Bryan, A ^{[1
]}

机构：

[1] Valence Technol Inc, Upper Rissington GL54 2QB, Glos, England

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 09期

关键词：

D O I：

10.1149/1.1979347

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The preliminary performance characteristics of a graphite//LiVP2O7 lithium-ion cell are described. The diphosphate active material was prepared using a carbothermal reduction approach. Contrary to previous reports, we found that the LiVP2O7 cathode shows encouraging electrochemical performance characterized by good material utilization and low voltage polarization. A cathode specific capacity approaching 100 mAh/g was recorded under low rate conditions. In addition, preliminary constant current testing at C/5 and C/10 indicates that the graphite//LiVP2O7 system cycles with relatively low capacity fade characteristics. The diphosphate based lithium-ion cell may be suitable for some low rate applications. (c) 2005 The Electrochemical Society. All rights reserved.

引用

页码：A446 / A448

页数：3

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