Processing and properties of amorphous manganese dioxide formed by sol-gel procedures

被引：0

作者：

Xu, JJ ^{[1
]}

Passerini, S ^{[1
]}

Owens, BB ^{[1
]}

Smyrl, WH ^{[1
]}

机构：

[1] Univ Minnesota, Corros Res Ctr, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

SOLID STATE IONICS V | 1999年 / 548卷

关键词：

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Sol-gel derived amorphous manganese dioxide (a-MnO2) showed extremely high reversible lithium intercalation capacity. The composition and structure of the material were modified by heating at different temperatures. Cycling performance of the modified samples suggests that lowering the water content in the material is beneficial, while introducing crystallinity is detrimental, to its cyclability. A novel double-solvent-exchange process was tried for the processing of the material. Preliminary results indicated significant improvement in the reversibility of the insertion/release cycles.

引用

页码：119 / 124

页数：6

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