溶胶凝胶法制备尖晶石型LiMn2O4的研究现状及展望

综述了用溶胶凝胶法制备锂离子电池正极活性材料尖晶石型LiMn2O4的方法及其发展方向。溶胶凝胶法制备材料具有贩优越性，研究工作取得了很大进展，但还不够系统深入，工业化尚有较大困难，认为这一领域的研究方向为：溶胶凝胶过程的基础性研究；尖晶石型LiMn2O4正析材料的掺杂改性、低温合成、纳米化和薄膜化；优化工艺过程，降低制备成本，实现工业化。

Research status and prospects on synthesis of spinel LiMn2O4 via sol-gel methods

Synthesis of the positive active materials of spinel LiMn2O4 via sol-gel methods for lithium ion batteries and their future de- velopment were summarized. Sol-gel methods have outstanding advantages in preparing the materials, and great progress has been made in the research work. However, the systematic and thorough study is still lacking, which results in the diffculty to put the technique into industry. The future research work in this field is considered as the follows: fundamental studying of the sol-gel processes, modifying spinel LiMn2O4 by dopants, synthesizing nanocrystalline powders and thin films of spinel LiMn2O4 synthesi- zing spinel LiMn2O4 at lower temperature, optimizing the sol-gel processes, lowering the costs and realizing industrialization.