电解质
锂(药物)
电极
电化学
材料科学
钴
化学工程
无机化学
离子
插层(化学)
锰
化学
有机化学
医学
冶金
物理化学
内分泌学
工程类
作者
A. Robert Armstrong,Peter G. Bruce
出处
期刊:Nature
[Springer Nature]
日期:1996-06-01
卷期号:381 (6582): 499-500
被引量:1338
摘要
RECHARGEABLE lithium batteries can store more than twice as much energy per unit weight and volume as other rechargeable batteries1,2. They contain lithium ions in an electrolyte, which shuttle back and forth between, and are intercalated by, the electrode materials. The first commercially successful rechargeable lithium battery3, introduced by the Sony Corporation in 1990, consists of a carbon-based negative electrode, layered LiCoO2 as the positive electrode, and a non-aqueous liquid electrolyte. The high cost and toxicity of cobalt compounds, however, has prompted a search for alternative materials that intercalate lithium ions. One such is LiMn2O4, which has been much studied as a positive electrode material4–7; the cost of manganese is less than 1% of that of cobalt, and it is less toxic. Here we report the synthesis and electrochemical performance of a new material, layered LiMnO2, which is structurally analogous to LiCoO2. The charge capacity of LiMnO2 (∼270mAhg–1) compares well with that of both LiCoO2 and LiMn2O4, and preliminary results indicate good stability over repeated charge–discharge cycles.
科研通智能强力驱动
Strongly Powered by AbleSci AI