首页> 外文期刊>Nature >SYNTHESIS OF LAYERED LIMNO2 AS AN ELECTRODE FOR RECHARGEABLE LITHIUM BATTERIES
【24h】

SYNTHESIS OF LAYERED LIMNO2 AS AN ELECTRODE FOR RECHARGEABLE LITHIUM BATTERIES

机译:层状LimNO2的合成作为可充电锂电池的电极

获取原文
获取原文并翻译 | 示例
           

摘要

RECHARGEABLE lithium batteries can store more than twice as much energy per unit weight and volume as other rechargeable batteries(1,2). 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 battery(3), 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 material(4-7); 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 (similar to 270 mA hg(1)) compares well with that of both LiCoO2 and LiMn2O4 and preliminary results indicate good stability over repeated charge-discharge cycles. [References: 13]
机译:可充电锂电池每单位重量和体积可存储的能量是其他可充电电池(1,2)的两倍以上。它们在电解液中包含锂离子,它们在电极材料之间来回穿插,并被电极材料插入。索尼公司(Sony Corporation)在1990年推出了第一款在商业上成功的可充电锂电池(3),它由碳基负极,层状LiCoO2作为正极和非水液体电解质组成。然而,钴化合物的高成本和高毒性促使人们寻求插入锂离子的替代材料。一种是LiMn2O4,已被广泛研究为正极材料(4-7)。锰的成本不到钴的1%,而且毒性较小。在这里,我们报告了一种新材料,层状LiMnO2的合成和电化学性能,它在结构上类似于LiCoO2。 LiMnO2的充电容量(类似于270 mA hg(1))与LiCoO2和LiMn2O4的充电容量比较好,初步结果表明在反复的充放电循环中具有良好的稳定性。 [参考:13]

著录项

  • 来源
    《Nature》 |1996年第6582期|p. 499-500|共2页
  • 作者

    Armstrong AR.; Bruce PG.;

  • 作者单位

    UNIV ST ANDREWS SCH CHEM ST ANDREWS KY16 9ST FIFE SCOTLAND;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

    Insertion;

    机译:插入;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号