INSERTION OF LITHIUM INTO THE MANGANESE DIOXIDES - PYROLUSITE AND RAMSDELLITE

被引：26

作者：

ZACHAUCHRISTIANSEN, B ^{[1
]}

WEST, K ^{[1
]}

JACOBSEN, T ^{[1
]}

SKAARUP, S ^{[1
]}

机构：

[1] TECH UNIV DENMARK,DEPT PHYS,DK-2800 LYNGBY,DENMARK

来源：

SOLID STATE IONICS | 1994年 / 70卷 / pt 1期

关键词：

D O I：

10.1016/0167-2738(94)90344-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Insertion of lithium into two MnO2 isomorphs is investigated. Pyrolusite is the stable modification, having a rutile structure with 1 X 1 strings of empty channels and Mn-filled octahedral. Ramsdellite is a metastable form with 2 x 1 blocks of these structural elements. Both modifications take up 1 Li/Mn (100-degrees-C), but for 0 < x < 1/2 in LixMnO2 the lithium insertion potential is higher for ramsdellite. Gamma-MnO2s (EMD, CMD), which are intergrowths of pyrolusite and ramsdellite, can be structurally distinguished on the basis of their lithium insertion behaviour.

引用

页码：401 / 406

页数：6

共 33 条

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