溶剂热合成法制备纳米复合正极材料及其充放电行为研究  

Charge and Discharge Behavior of Positive Nanocomposite LiFePO_4/C Prepared by Solvothermal Synthesis Method

作　　者：王廷河 

机构地区：[1]张家口学院,河北张家口075000

出　　处：《铸造技术》2014年第3期442-444,共3页Foundry Technology

基　　金：河北省社会科学基金资助项目(HB13JJ047)

摘　　要：以蔗糖为碳源,乙二醇为溶剂,采用热溶剂法制得了正极复合材料LiFePO4/C,并对其充放电行为进行了研究。结果表明,受含碳的细化颗粒影响,LiFePO4/C正极材料的导电性大幅度提高。首次充、放电比容量与理论值接近,并且具有良好的循环稳定性。The positive nonacomposite FiFePO4/C was prepared by solvothermal synthesis method with sucrose as carbon source, ethylene glycol as solvent, and its charging and discharging behavior was studied. The results show that the conductivity of LiFePO4/C is enhanced greatly due to the refining of grain. And the capacity of LiFePO4/C is close to the theoretical value in the initial charge-discharge process, and its cycle stability is also good.

关 键 词：锂离子电池 LIFEPO4 纳米复合材料 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB332