锂离子电池关键材料的研究及发展

Research and Development of Key Materials in Lithium Ion Battery

为了改善和提高锂离子电池的性能,对锂离子电池的关键材料:正极材料、负极材料、电解液及隔膜进行分析和研究。归纳了各种关键材料的特点,分析了各种正极材料和负极材料。对三元材料从元素和结构上进行分析,总结了三元正极材料的特性及优缺点。改性是进一步提高三元材料性能的重要途径。负极材料分为碳材料和非碳材料,其中,纳米材料是研究的热点。研究结论表明三元正极材料和纳米负极材料将是锂离子电池电极材料研究和发展的重要方向。

In order to change and improve materials such as cathode materials, anode the properties of lithium ion battery, key materials, electrolyte and separator were analyzed and reviewed. Characteristics of each key material was summarized, cathode materials and anode materials were mainly analyzed. Through elemental and structural analysis, the advantages and disadvantages of Li[Ni,Co,Mn]O2 were concluded. Modification for Li[Ni,Co,Mn]O2 is an important approach to improve its properties. Anode materials can be divided into two kinds： carbon materials and non-carbon materials. Nanometer materials are becoming popular. The results show that Li[Ni,Co, Mn]O2 and nanometer materials are believed to be potential materials for lithium ion batteries.