Study on Surface Modification of MnMoO4for Improving Electrochemical Properties of Lithium-rich Manganese-based Cathode Materials AITranslate
Abstract AITranslate
Lithium-rich manganese-based cathode materials Li1.2[Ni0.13Co0.13Mn0.54]O2 with particle size of 200~300nm were successfully synthesized via the coprecipitation-high temperature solid-state method.And MnMoO4 with oxygen vacancy was deposited on the surface of the materials via wet chemical deposition to improve the electrochemical performance.It is found that surface-modified MnMoO4 successfully induces the formation of spinel LiMn2O4 structure on the surface of the materials,and the special surface heterogeneity can reduce the side-reaction between the bulk and the electrolyte,effectively accommodate oxygen loss during the first charge and promote lithium ion diffusion.Compared with the initial material,the initial Coulombic efficiency of the material modified with MnMoO4 increases from 74.41%to 81.48%,and the capacity of the modified material after 100cycles boosts from 175.8mA·h/g to 205.7mA·h/g,exhibiting excellent electrochemical properties.
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DOI：
Chinese Library Classification Number:TQ152[化学工程—电化学工业]
Citation Information:
Lithium-rich manganese-based cathode materials Li1.2[Ni0.13Co0.13Mn0.54]O2 with particle size of 200~300nm were successfully synthesized via the coprecipitation-high temperature solid-state method.And MnMoO4 with oxygen vacancy was deposited on the surface of the materials via wet chemical deposition to improve the electrochemical performance.It is found that surface-modified MnMoO4 successfully induces the formation of spinel LiMn2O4 structure on the surface of the materials,and the special surface heterogeneity can reduce the side-reaction between the bulk and the electrolyte,effectively accommodate oxygen loss during the first charge and promote lithium ion diffusion.Compared with the initial material,the initial Coulombic efficiency of the material modified with MnMoO4 increases from 74.41%to 81.48%,and the capacity of the modified material after 100cycles boosts from 175.8mA·h/g to 205.7mA·h/g,exhibiting excellent electrochemical properties.
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| GB/T 7714-2015 | [1] GENG Meng-meng, YANG Kai, MAO Hong-xing, et al. Study on Surface Modification of MnMoO4for Improving Electrochemical Properties of Lithium-rich Manganese-based Cathode Materials[J]. Rare Metals and Cemented Carbides, 2020(1): 61-67. |
| MLA | [1] GENG Meng-meng, et al., "Study on Surface Modification of MnMoO4for Improving Electrochemical Properties of Lithium-rich Manganese-based Cathode Materials." Rare Metals and Cemented Carbides, no. 1, 2020, pp. 61-67. |
| APA | [1] GENG Meng-meng, YANG Kai, MAO Hong-xing, GAO Yun-xing, & ZHONG Jian-jian. (2020). Study on Surface Modification of MnMoO4for Improving Electrochemical Properties of Lithium-rich Manganese-based Cathode Materials. Rare Metals and Cemented Carbides(1), 61-67. |
| IEEE | [1] GENG Meng-meng, YANG Kai, MAO Hong-xing, GAO Yun-xing, and ZHONG Jian-jian, "Study on Surface Modification of MnMoO4for Improving Electrochemical Properties of Lithium-rich Manganese-based Cathode Materials," Rare Metals and Cemented Carbides, no. 1, pp. 61-67, 2020. keywords: {Li-ion battery;lithium-rich manganese-based cathode material;MnMoO4;spinel phase;electrochemical property} |