4V锂离子电池正极材料研究进展

Study progress of the cathodic materials for 4V lithium-ion batteries

简述了近年来国内外4V二次锂离子电池正极材料的研究现状和发展方向,列举了该项研究中面临的困难如成本高、充放电寿命短、实际电容量低,难承受大功率放电等,并探讨了目前相应的解决方法如电极材料的改性和改良,工艺过程和产品设计的优化。

The recent study progress of the cathodic materials for 4V lithium-ion battery was reviewed. Many problems and difficulties related to the studies such as high cost, low discharge capacity, short cycle life and high rate inadaptable, were summarized and the corresponding strategy, for example, doped, coated and modified the materials and improved synthesis process were discussed.