Phosphate-stabilized lithium intercalation compounds

被引：48

作者：

Richardson, TJ ^{[1
]}

机构：

[1] Ernest Orlando Lawrence Berkley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

lithium secondary batteries; active materials;

D O I：

10.1016/S0378-7753(03)00244-1

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：

Four manganese and iron phosphates with alluaudite or fillowite structures have been prepared by solid state reactions: Na2FeMn2(PO4)(3), LiNaFeMn2(PO4)(3), NaFe3(PO4)(3), and Na2Mn3(PO4)(3). LiNa2-xFeMn2(PO4)(3) with x close to 2 was prepared from Na2FeMn2(PO4)(3) by molten salt ion exchange. These materials are similar in stoichiometry to the phospho-olivines LiFe(Mn)PO4, but have a more complex structure that can accommodate mixed transition metal oxidation states. They are of interest as candidates for lithium battery cathodes because of their expected higher electronic conductivity, high intercalant ion mobility, and ease of preparation. Their performance as intercalation electrodes in non-aqueous lithium cells was, however, poor. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：262 / 265

页数：4

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