合成条件对锂离子电池正极材料V6O13物相和结构的影响

采用NH4VO3为原料，在Ar气氛保护条件下，以固相热解的方法制备了锂离子电池正极材料V6O13研究了不同Ar气流量、温度制度等工艺因素对V6O13的物相结构、微观形貌等影响。结果表明，随着Ar气流量的增加，钒氧化物中钒的价态逐渐升高；随着温度的升高，V6O13颗粒逐渐长大，并在（002）和（003）晶面出现了择优生长。在Ar气流量为85mL／min、升温速率5℃／min、180℃保温1h、300℃保温1h、450℃保温30min的条件下，随炉冷却得到的V6O13物相单一、颗粒均匀，是一种有实用价值的正极材料。

Effects of Synthesis Technology on Phase and Structure of V6O13Cathode Material for Lithium Ion Batteries

V6O13 cathode materials for lithium ion batteries are prepared using NH4VO3 as raw material by solid phase method in argon atmosphere.The effects of argon flow rate and temperature scheme on phase and morphlogy of V6O13 are studied.The results show that the valence state of vanadium increases the argon flow rate.With the increase of the temperature,the grain size of the product becomes larger and makes preferential growth of(002) and(003) crystal face of V6O13.The pure and uniform V6O13 powders can be obtai...