锂离子电池阴极材料LiM_xMn_(2-x)O_4的合成方法研究  

Progress in Synthetic Methods of Cathode Material LiM_xMn_(2-x)O_4 for Lithium Ion Batteries

作　　者：康慨[1] 戴受惠[1] 万玉华[1] 

机构地区：[1]中国核动力研究设计院核燃料及材料国家级重点实验室,成都610041

出　　处：《无机材料学报》2001年第4期586-594,共9页Journal of Inorganic Materials

基　　金：中国核动力研究设计院青年科学研究基金(99-ZK-1)

摘　　要：尖晶石ＬｉＭｎ２Ｏ４是最有希望替代ＬｉＣｏＯ２的新一代锂离子电池阴极材料．本文对其晶体结构进行了详细的描述；综合评述了近年来各种制备ＬｉＭｘＭｎ２－ｘＯ４的方法，包括高温团相反应、微波烧结法、固相配位反应等“因相合成法”以及Ｐｅｃｈｉｎｉ法、溶胶－凝胶法、微乳化等“软化学合成法”，并对各方法的优缺点进行了分析对比．其中“固相配位反应法”是本文作者的创新方法，既保持了高温固相反应法操作简便、易于工业化生产的的优点，同时也具有煅烧温度低、煅烧时间短、产品形貌较好、粒度相对较小、而且化学计量可控等优点．因此，该法具有十分巨大的潜在应用价值．Spinel LiMn2O4 is a promising candidate for substitution of LiCoO2 as the cathode material for Lithium ion batteries, of which the crystal structure was described in detail. The synthetic methods for the preparation of LiMxMn2-xO4 developed in recent years were reviewed, including 'solid-state reaction methods' such as high temperature solid-state reaction, microwave sintering, and solid-state coordination reaction, etc., and 'soft-chemistry synthetic methods' such as pechini synthesis, sol-gel method and micro-emulsion method etc. The advantages drawbacks of each method were compared and analyzed. Of all the methods described herein, the solid-state coordination reaction method developed by the author is quite a new one for preparing LiMxMn2-xO4, which has wide application prospects. Compared to the traditional high temperature solid-state reaction method, this new one not only maintains all the former's merits such as simple to operate and easy to manufacture in large-scale, but also has many advantages such as low calcination temperature, short calcination time, and good morphology small particulate as well as easy control of stoichiometry, etc.

关 键 词：尖晶石LiMxMn2-xO4 晶体结构 固相合成法 软化学合成法 锂离子电池 阴极材料 锰酸锂 

分 类 号：TM912[电气工程—电力电子与电力传动] TM2[一般工业技术—材料科学与工程]