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Effect of cooling on the structure and electrochemical properties of 0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) cathode material
Zhang, YF; Zhang, YL; Wang, L; He, XM; Yang, JP; Jin, YH; Zhang, K; Zhang K(张凯)
2015
发表期刊IONICS
卷号21期号:7页码:1819-1825
摘要The cooling rate after annealing treatment was proved to be important for the structure and electrochemical performances of the layered oxide 0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) material, which has been synthesized using a sol-gel method. Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), nondestructive nano-computed tomography (nano-CT), and Brunauer-Emmett-Teller (BET) surface area measurement were used to characterize the structure and micromorphology of the material. It was demonstrated that the material quenched by liquid nitrogen (AN-material) showed less defects in structure and larger specific surface area than the material cooled naturally (AF-material). Electrochemical measurement showed that the AN-material exhibited better electrochemical performance as cathode candidate for lithium-ion batteries. The initial discharge capacity and coulombic efficiency reached 277.4 mAh g(-1) and 84.1 % for AN-material, while 257.1 mAh g(-1) and 78.4 % for AF-material. In addition, the AN-material also exhibited lower charge transfer resistance than AF-material.
文章类型Article
关键词0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) Cooling rate Layered oxide Electrochemical performance
学科领域Chemistry; Electrochemistry; Physics
DOI10.1007/s11581-015-1375-5
收录类别SCI ; EI
WOS类目Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号WOS:000356724600003
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228410
专题多学科研究中心
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GB/T 7714
Zhang, YF,Zhang, YL,Wang, L,et al. Effect of cooling on the structure and electrochemical properties of 0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) cathode material[J]. IONICS,2015,21(7):1819-1825.
APA Zhang, YF.,Zhang, YL.,Wang, L.,He, XM.,Yang, JP.,...&张凯.(2015).Effect of cooling on the structure and electrochemical properties of 0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) cathode material.IONICS,21(7),1819-1825.
MLA Zhang, YF,et al."Effect of cooling on the structure and electrochemical properties of 0.3Li(2)MnO(3) center dot 0.7LiNi(0.5)Mn(0.5)O(2) cathode material".IONICS 21.7(2015):1819-1825.
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