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Effect of Different PrPO_4 Coating Methods on the Electrochemical Performance of Li-rich Manganese-based Cathode Materials AITranslate

DING Fei-xiang; LI dian-ling; DENG Fu-hai; XU Ouo-feng; LI Zhan-yu; LIU Yan-ying
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

Li-rich manganese-based material Li1.2[Mn0.54Ni0.13Co0.13]O2, was synthesized with co-precipitati- on and high temperature solid state method,and then coated with PrPO4 by simple wet chemical precipita- tion and PVP-assisted wet chemical deposition. The results show that with PVP-assisted coating,the coat- ing layer is more uniform,and the electrochemical properties are obviously improved. The 3 %-PVP coated sample shows an initial discharge capacity of 286.7 mA·h/g with Coulombie efficiency of 89.60~, and more excellent cycling stability with discharge specific capacity of 254 mA·h/g after 50 cycles at 0.1C discharge rate, and the capacity retention increases from 88.5% of the blank sample to 95%. Thus,it turns out that the uniform PrPO4 coating layer can effectively improve the comprehensive electrochemical performance of Li-rieh manganese-based cathode material.

KeyWords AITranslate

lithiumion battery ＋ Lirich manganese- based cathode material PVP PrPO4 electrochemical performance

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Basic Information:

DOI：

Chinese Library Classification Number:TM912.9[电气工程—电力电子与电力传动]

Citation Information:

Li-rich manganese-based material Li1.2[Mn0.54Ni0.13Co0.13]O2, was synthesized with co-precipitati- on and high temperature solid state method,and then coated with PrPO4 by simple wet chemical precipita- tion and PVP-assisted wet chemical deposition. The results show that with PVP-assisted coating,the coat- ing layer is more uniform,and the electrochemical properties are obviously improved. The 3 %-PVP coated sample shows an initial discharge capacity of 286.7 mA·h/g with Coulombie efficiency of 89.60~, and more excellent cycling stability with discharge specific capacity of 254 mA·h/g after 50 cycles at 0.1C discharge rate, and the capacity retention increases from 88.5% of the blank sample to 95%. Thus,it turns out that the uniform PrPO4 coating layer can effectively improve the comprehensive electrochemical performance of Li-rieh manganese-based cathode material.

quote

GB/T 7714-2015 [1] DING Fei-xiang, LI dian-ling, DENG Fu-hai, et al. Effect of Different PrPO_4 Coating Methods on the Electrochemical Performance of Li-rich Manganese-based Cathode Materials[J]. Rare Metals and Cemented Carbides, 2018(2): 27-31.
MLA [1] DING Fei-xiang, et al., "Effect of Different PrPO_4 Coating Methods on the Electrochemical Performance of Li-rich Manganese-based Cathode Materials." Rare Metals and Cemented Carbides, no. 2, 2018, pp. 27-31.
APA [1] DING Fei-xiang, LI dian-ling, DENG Fu-hai, XU Ouo-feng, LI Zhan-yu, & LIU Yan-ying. (2018). Effect of Different PrPO_4 Coating Methods on the Electrochemical Performance of Li-rich Manganese-based Cathode Materials. Rare Metals and Cemented Carbides(2), 27-31.
IEEE [1] DING Fei-xiang, LI dian-ling, DENG Fu-hai, XU Ouo-feng, LI Zhan-yu, and LIU Yan-ying, "Effect of Different PrPO_4 Coating Methods on the Electrochemical Performance of Li-rich Manganese-based Cathode Materials," Rare Metals and Cemented Carbides, no. 2, pp. 27-31, 2018. keywords: {lithiumion battery ＋ Lirich manganese- based cathode material;PVP;PrPO4;electrochemical performance}