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Preparation and Electrochemical Performance Study of TiO2-Coated Li3V2(PO4)3/C Composite Material for Lithium-Ion Battery Cathode AITranslate

LIU Tian-tian; WANG Ning-jun; LI Na-li; ZHU Kui-song
School of Vanadium and Titanium,Panzhihua University;School of Vanadium and Titanium,Panzhihua University;School of Vanadium and Titanium,Panzhihua University;School of Vanadium and Titanium,Panzhihua University
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

Li3V2(PO4)3/C cathode material was prepared by carbothermal reduction method,and then modified via TiO2 coating using butyl titanate hydrolysis method.The effect of TiO2 coating amount on the structure and electrochemical properties of Li3V2(PO4)3/C cathode material was studied.The results show that TiO2 coating on Li3V2(PO4)3/C cathode material has no effect on its crystal structure.In the range of TiO2 coating amount of 0~4%(mass fraction),the surface of the material with TiO2 coating amount of 2%can form a uniform and dense protective layer,which enhances the structural stability of the material and reduces the polarization degree of the electrode.Compared with other coating conditions,the prepared battery sample has better rate performance and cycling performance.In the voltage range of 3.0~4.3 V,the initial discharge specific capacity of the sample reaches 120.9 mA·h/g at 0.2 C,the discharge specific capacity after 20 cycles is 121.4 mA·h/g,and the capacity retention rate reaches 100.4%.

KeyWords AITranslate

lithium-ion battery lithium vanadium phosphate TiO2coating positive electrode material electrochemical property
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DOI：

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

Citation Information:

Li3V2(PO4)3/C cathode material was prepared by carbothermal reduction method,and then modified via TiO2 coating using butyl titanate hydrolysis method.The effect of TiO2 coating amount on the structure and electrochemical properties of Li3V2(PO4)3/C cathode material was studied.The results show that TiO2 coating on Li3V2(PO4)3/C cathode material has no effect on its crystal structure.In the range of TiO2 coating amount of 0~4%(mass fraction),the surface of the material with TiO2 coating amount of 2%can form a uniform and dense protective layer,which enhances the structural stability of the material and reduces the polarization degree of the electrode.Compared with other coating conditions,the prepared battery sample has better rate performance and cycling performance.In the voltage range of 3.0~4.3 V,the initial discharge specific capacity of the sample reaches 120.9 mA·h/g at 0.2 C,the discharge specific capacity after 20 cycles is 121.4 mA·h/g,and the capacity retention rate reaches 100.4%.

quote

GB/T 7714-2015 [1] LIU Tian-tian, WANG Ning-jun, LI Na-li, et al. Preparation and Electrochemical Performance Study of TiO2-Coated Li3V2(PO4)3/C Composite Material for Lithium-Ion Battery Cathode[J]. Rare Metals and Cemented Carbides, 2025(5): 124-129.
MLA [1] LIU Tian-tian, et al., "Preparation and Electrochemical Performance Study of TiO2-Coated Li3V2(PO4)3/C Composite Material for Lithium-Ion Battery Cathode." Rare Metals and Cemented Carbides, no. 5, 2025, pp. 124-129.
APA [1] LIU Tian-tian, WANG Ning-jun, LI Na-li, & ZHU Kui-song. (2025). Preparation and Electrochemical Performance Study of TiO2-Coated Li3V2(PO4)3/C Composite Material for Lithium-Ion Battery Cathode. Rare Metals and Cemented Carbides(5), 124-129.
IEEE [1] LIU Tian-tian, WANG Ning-jun, LI Na-li, and ZHU Kui-song, "Preparation and Electrochemical Performance Study of TiO2-Coated Li3V2(PO4)3/C Composite Material for Lithium-Ion Battery Cathode," Rare Metals and Cemented Carbides, no. 5, pp. 124-129, 2025. keywords: {lithium-ion battery;lithium vanadium phosphate;TiOcoating;positive electrode material;electrochemical property}