掺杂对尖晶石锰酸锂正极材料的影响

合成性能好、结构稳定的正极材料锰酸锂是研究和制备有应用前景的锂离子蓄电池电极材料的关键，锰酸锂是较有前景的锂离子正极材料之一。但其较差的循环性能及电化学稳定性却大大限制了其产业化，掺杂是提高其性能的一种有效方法。掺杂有强M-O键、较强八面体稳定性且离子半径与锰离子相近的金属离子，能显著改善其循环性能。综述了阳离子掺杂、阴离子掺杂以及复合掺杂对锂锰氧化物电化学性能的影响，其中主要介绍了铬、钴、铝、镍等元素的掺杂对锰酸锂的影响。

Effect of Doping on LiMn2O4 with Spinal anode Material

Preparing anode material with fine performance and stable structure is the key for the production of electrode material of lithium ion battery,which has an excellant application prospect.LiMn_2O_4 is one of the anode material of lithium ion battery,due to its bad circulating performance and electrochemical stability,it is greatly limited in its industrialization.Doping is an effective method to improve its property.The circulating performance of LiMn_2O_4 can be improved significantly by doping the metal ion,which has strong M-O bond,stable octahedron structure and the ion radius similar to Mn ion.The influences of cation,anion and compounded doping on the electrochemical performance of LiMn_2O_4 are summarized.The effects of doping elements,such as Cr,Co,Al,Ni etc.on the LiMn_2O_4 are mainly introduced.