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Research progress of disordered oxide cathode materials for Liion battery |
| College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210001, China |
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Abstract The application status and research trends of disordered cathode materials for lithiumion batteries at home and abroad were introduced. Two activation methods of Li+ diffusion channels in disordered cathode materials were discussed. The Tibased (LiMTiO) and Nbbased (LiNbMO) disordered cathode materials were classified. The effects of preparation methods, optimization of parameters and modification on the electrochemical properties of disordered cathode were reviewed. The stability performance and chargedischarge mechanism of the two types of disordered cathode materials were compared. In view of the current problems of the disordered cathode materials with general capacity retention rate and poor rate performance, the modification methods of surface coating and ion doping were proposed, and the novel chargedischarge mode was also discussed. The future research directions of disordered cathode materials were prospected.
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