Preparation and characterization of LiV3O8 cathode material for lithium secondary batteries through an EDTA-sol-gel method
LiV3O8 is a very promising cathode material for lithium secondary batteries. An EDTA-sol-gel method was proposed for the first time to obtain at low temperature. LLAc·2H2O, NH4VO3 and EDTA were used as raw materials to prepare the precursor, and then the precursor was sintered to obtain the layered structure of LiV3O8. The effect of sintering temperature and duration on the quality of LiV3O8 was investigated. We also tested the electrochemical performances of LiV3O8 obtained through the method. The sample heated at 550℃ for 15 h has a single-phase layered structure and it has a first cycle discharge capacity of 251.7 mA h g(-1) at the range of 1.8-3.6 Vat 0.1 mA and an average capacity decay rate of 0.43% per cycle after 30 cycles.
Lithium ion battery LiV3O8 Sol-gel EDTA
Yuan Zhou Hong-Fei Yue Xin-Yue Zhang Xiao-Yu Deng
Institute of Salt Lakes, Chinese Academy of Sciences (ISLCAS), Xining 810008, Qinghai, Peoples Rep Institute of Salt Lakes, Chinese Academy of Sciences (ISLCAS), Xining 810008, Qinghai, Peoples Rep
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1763-1767
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）