球形材料具有堆积密度大、体积比容量高、加工性能好等突出优点. 球形化是锂离子电池正极材料的重要发展方向. 控制结晶法是制备球形材料的理想方法. 本文介绍了控制结晶法的原理, 综述了采用控制结晶法制备球形锂离子电池正极材料---LiCoO2、LiNi0.8Co0.2O2、LiMn2O4、LiNi1/3Co1/3Mn1/3O2、LiFePO4的研究和发展, 并对球形材料在锂离子电池中的应用前景进行了分析.
The spherical cathode materials for lithium ion batteries have the outstanding advantages such as high pile-density, high capacity density and excellent manufacturing performance, being expected as the important directions. The “controlled crystallization” method is an ideal way to prepare spherical cathode materials. This paper introduced the principle of “controlled crystallization” method and reviewed the research and development of the spherical cathode materials, including LiCoO2, LiNi0.8Co0.2O2, LiMn2O4, LiNi1/3Co1/3Mn1/3O2, and LiFePO4. The prospective application of the spherical cathode materials was also analyzed.
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