锂离子电池新型正极材料LiFePO_4/C的合成  

Synthesis of LiFePO_4/C Anode Material for Lithium-ion Battery

作　　者：陈杨[1] 周振君[1] 童昀[1] 朱海霞[1] 

机构地区：[1]长安大学材料科学与工程学院,陕西西安710054

出　　处：《稀有金属与硬质合金》2008年第3期35-37,共3页Rare Metals and Cemented Carbides

摘　　要：采用高温固相合成法合成了锂离子电池正极材料LiFePO4/C,并对其晶体结构、形貌和电化学性能进行了研究。结果表明:合成的LiFePO4/C材料为单一橄榄石型结构,颗粒分布比较均匀;以0.1 C倍率充放电时其初始比容量为115 mA.h/g,20次循环后其容量保持率为97%。The LiFePO4/C anode material for lithium-ion batteries was synthesized by solid-phase synthesis. The crystalline structure,grain morphology and electrochemical performance of the product were investiga-ted. The results show that the resultant LiFePO4/C has simple pure olive-type structure with uniform distribution of the gain sizes. The initial specific charge and discharge capacity of LiFePO4/C is the highestwith 115 mAh/g at the rate of 0.1C and the retained capacity is 97% after 20 cycles .

关 键 词：锂离子电池 正极材料 LIFEPO4/C 合成 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ132.2[化学工程—无机化工]