Low-temperature behavior of Li3V2(PO4)(3)/C as cathode material for lithium ion batteries
Liu Zhiqiang; Kang Xueya; Li Chengfeng; Hua Ning; Wumair Tuerdi; Han Ying; Kang, XY
2012
发表期刊JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN1432-8488
卷号16期号:5页码:1917-1923
摘要

The electrochemical performance of Li3V2(PO4)(3)/C was investigated at various low temperatures in the electrolyte 1.0 mol dm(-3) LiPF6/ethyl carbonate (EC)+diethyl carbonate (DEC)+dimethyl carbonate (DMC) (volume ratio 1:1:1). The stable specific discharge capacity is 125.4, 122.6, 119.3, 116.6, 111.4, and 105.7 mAh g(-1) at 26, 10, 0, -10, -20, and -30 A degrees C, respectively, in the voltage range of 2.3-4.5 V at 0.2 C rate. When the temperature decreases from -30 to -40 A degrees C, there is a rapid decline in the capacity from 105.7 to 69.5 mAh g(-1), implying that there is a nonlinear relationship between the performance and temperature. With temperature decreasing, R (ct) (corresponding to charge transfer resistance) increases rapidly, D (the lithium ion diffusion coefficients) decreases sharply, and the performance of electrolyte degenerates obviously, illustrating that the low-temperature electrochemical performance of Li3V2(PO4)(3)/C is mainly limited by R (ct), D (Li), and electrolyte.

关键词Lithium Vanadium Phosphate Low-temperature Electrochemical Performance Cathode Carbon Coating Lithium Ion Battery
学科领域Electrochemistry
DOI10.1007/s10008-011-1584-4
收录类别SCI
WOS记录号WOS:000303451100025
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2815
专题新疆维吾尔自治区电子信息材料与器件重点实验室
通讯作者Kang, XY
作者单位Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Liu Zhiqiang,Kang Xueya,Li Chengfeng,et al. Low-temperature behavior of Li3V2(PO4)(3)/C as cathode material for lithium ion batteries[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2012,16(5):1917-1923.
APA Liu Zhiqiang.,Kang Xueya.,Li Chengfeng.,Hua Ning.,Wumair Tuerdi.,...&Kang, XY.(2012).Low-temperature behavior of Li3V2(PO4)(3)/C as cathode material for lithium ion batteries.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,16(5),1917-1923.
MLA Liu Zhiqiang,et al."Low-temperature behavior of Li3V2(PO4)(3)/C as cathode material for lithium ion batteries".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 16.5(2012):1917-1923.
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