Research and Development of Preparing Spherical Cathode Materials for Lithium Ion Batteries by Controlled Crystallization Method

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.