锂离子电池正极材料进展

介绍了锂离子电池的发展阶段、工作原理及特点，叙述了锂电池已商业化正极材料钴酸锂、锰酸锂、磷酸铁锂的特性、合成方法及其优缺点，纳米技术锂离子电池正极材料应用及其合成方法。认为应根据现有正极材料出现的问题，通过掺杂、包覆、加入辅助剂和表面修饰改性等方法减低成本，利用纳米材料的优点和微米材料优良的稳定性和容易制备的优点合成纳微分层结构的材料解决纳米材料的低热力学稳定性、团聚及与电解液发生副反应等问题；可以尝试着探索新的方法合成纳米级颗粒．并将最优的方法应用于新材料和经典电极材料的制备，从而充分发挥纳米级材料的尺寸效应和表面效应．改善电极材料的电化学活性．有助于推进纳米正极材料的工业化进程。

Progress of Lithium ion Battery Positive Pole Material

This paper introduced the development phase,work principle and characteristics of lithium ion battery,described the characteristics,synthesis method,advantages and disadvantages of the commercialized positive pole materials such as lithium cobalt oxide,lithium manganate and lithium iron phosphate,application and synthesis method of nanotechnology lithium ion battery positive pole material.The cost was reduced by doping,cladding;adding auxiliary agent and surface modification methods based on the problem existing in the pole material now available,nano differential layer structure materials were prepared using the advantages of nano material and excellent stability and easy preparation advantages of micron material which solved the problems of low thermodynamic stability in nano materials,reunion and side effects of the reaction with electrolyte;New methods to synthesize nanoscale particle can try to be explored,and the optimal method is applied in preparation of new materials and classical electrode materials,so as to give full play to nanoscale material size effect and surface effect,improve electrochemical activity of electrode material,promote the industrialization process of nano positive pole materials.