电源技术2012，Vol.36Issue(11)：1603-1605,3.
Li3V2(PO4)3/C复合材料及其电池性能研究
Study on performance of Li3V2(PO4)3/C composite material for lithium-ion batteries
摘要
Abstract
Li3V2(PO4)3/c composite cathode material was prepared by spray drying method. The characteristic of the Li3V,(PO4)3/C composite material was investigated by means of XRO, SEM and DSC. The 18650 lithium-ion batteries were prepared with Li3V2(PO4)3/C composite cathode material and CMS-G25 anodic material. The rate ability, cycling performance and safety characteristic of the LIB were studied. The results indicate that the Li3V2 (PO4)3/C composite material is pure monoclinic phase, and the spherical secondary particles can be prepared by spray drying method. The samples have excellent thermal stability, the exotherm in the 4.3 V and 4.7 V charged state is 240.1 J/g and 259.4 J/g, respectively. The 18650 LIB shows good high-rate ability, cycling performance and safety characteristic. The discharge capacity of 15 C/1 C is 95%, the discharge capacity retention is 95.02% after 100 cycles. The punch, nail, short circuit and heat test were carried out; the 18650 LIB had no fire and no explosion.z关键词
磷酸钒锂/复合材料/锂离子电池Key words
lithium vanadium phosphate/ composite material/ spray drying分类
信息技术与安全科学引用本文复制引用
任丽彬,杨凯,彭庆文,卢志威,刘兴江..Li3V2(PO4)3/C复合材料及其电池性能研究[J].电源技术,2012,36(11):1603-1605,3.基金项目
国家高技术研究发展计划资助项目(2011AA1A255) （2011AA1A255）
