含导电聚苯胺类锂离子电池复合材料的现状及发展趋势

Current status and development trend of conductive polyaniline lithium-ion battery composites

导电聚苯胺(PANI)是近十年来研究最多的导电聚合物,具有比容量高、氧化还原可逆性好、电导率高、合成方法简单、成本低等特点,在化学电源和超级电容器中的应用最为广泛。导电聚苯胺复合材料的合成方法主要分为:原位复合法、共混法、自组装和电化学复合法等。导电聚苯胺复合材料可作为高能物质用于研发电极材料,但目前利用导电聚苯胺对锂离子电池三元正极材料进行修饰改性的研究较少。综述了导电聚苯胺及其复合材料的热电化学性能,重点对导电聚苯胺/锂离子电池复合正极材料的性能进行了阐述。最后对导电聚苯胺复合材料的应用和研究方向进行了总结,并简述了导电聚苯胺包覆改性LiNi_(1-x-y)Co_xMn_yO_2复合材料的应用和展望。

Conductive polyaniline is one of the most studied conductive polymers in recent ten years. It has the characteristics of high specific capacity, good redox reversibility, high conductivity, simple synthesis method, and low cost. It is the most widely used in chemical power supply and supercapacitor. The synthesis method of conductive polyaniline composite material is mainly divided into in situ composite method, blending method, self-assembly, electrochemical recombination method and so on. Conductive polyaniline composite can be used as a high-energy material to develop electrode materials, but there are few studies on the modification of the lithium-ion battery ternary cathode materials by using conductive polyaniline. The thermoelectric properties of conductive polyaniline and its composites are reviewed. The performance of conductive polyaniline/lithium ion battery composite cathode materials are discussed. Finally, the application and prospect of conductive polyaniline composites were summarized, and the application and prospect of conductive polyaniline coated modified LiNi_（1-x-y）Co_xMn_yO_2 composites were briefly introduced.