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Electrochemical performance of LiNi0.5Mn1.5O4 doped with la and its compatiblity with new electrolyte system
Cui, Xiaoling1; Shi, Xinming1; Li, Guixian1; Li, Shiyou1; Xu, Xiaoli1; Li, Yongli1; Mao, Liping1; Ye, Xiushen2
2014-04-01
发表期刊RUSSIAN JOURNAL OF ELECTROCHEMISTRY
卷号50期号:4页码:363-369
关键词Lini0.5mn1.5o4 Libob Li-ion Battery Doping Cycling Performance
摘要Cathode materials LiNi0.5Mn1.5O4 and LiNi0.5 - x/2La (x) Mn1.5 - x/2O4 (x = 0.04, 0.1, 0.14) were successfully prepared by the sol-gel self-combustion reaction (SCR) method. The X-ray diffraction (XRD) patterns indicated that, a few of doping La ions did not change the structure of LiNi0.5Mn1.5O4 material. The scanning electronic microscopy (SEM) showed that the sample heated at 800A degrees C for 12 h and then annealed at 600A degrees C for 10 h exhibited excellent geometry appearance. A novel electrolyte system, 0.7 mol L-1 lithium bis(oxalate)borate (LiBOB)-propylene carbonate (PC)/dimethyl carbonate (DMC) (1: 1, v/v), was used in the cycle performance test of the cell. The results showed that the cell with this novel electrolyte system performed better than the one with traditional electrolyte system, 1.0 mol L-1 LiPF6-ethylene carbonate (EC)/DMC (1: 1, v/v). And the electrochemical properties tests showed that LiNi0.45La0.1Mn1.45O4/Li cell performed better than LiNi0.5Mn1.5O4/Li cell at cycle performance, median voltage, and efficiency.
语种英语
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文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5727
专题中国科学院青海盐湖研究所
盐湖资源与化学实验室
作者单位1.Lanzhou Univ Technol, Inst Petrochem Technol, Lanzhou 730050, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
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GB/T 7714
Cui, Xiaoling,Shi, Xinming,Li, Guixian,et al. Electrochemical performance of LiNi0.5Mn1.5O4 doped with la and its compatiblity with new electrolyte system[J]. RUSSIAN JOURNAL OF ELECTROCHEMISTRY,2014,50(4):363-369.
APA Cui, Xiaoling.,Shi, Xinming.,Li, Guixian.,Li, Shiyou.,Xu, Xiaoli.,...&Ye, Xiushen.(2014).Electrochemical performance of LiNi0.5Mn1.5O4 doped with la and its compatiblity with new electrolyte system.RUSSIAN JOURNAL OF ELECTROCHEMISTRY,50(4),363-369.
MLA Cui, Xiaoling,et al."Electrochemical performance of LiNi0.5Mn1.5O4 doped with la and its compatiblity with new electrolyte system".RUSSIAN JOURNAL OF ELECTROCHEMISTRY 50.4(2014):363-369.
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