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Open AccessArticle

Synthesis and Electrochemical Performance of Ni-Doped VO2(B) as a Cathode Material for Lithium Ion Batteries

College of Materials Science and Engineering, Guilin University of Technology, Guilin 541000, China
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Author to whom correspondence should be addressed.
Batteries 2019, 5(2), 46; https://doi.org/10.3390/batteries5020046
Received: 16 March 2019 / Revised: 14 May 2019 / Accepted: 20 May 2019 / Published: 1 June 2019
(This article belongs to the Special Issue Cathode Materials for Lithium-Ion Batteries)
Ni-doped VO2(B) samples (NixVO2(B)) were fabricated by a facile one-step hydrothermal method. When evaluated as a cathode material for lithium ion batteries (LIBs), these Ni-doped VO2(B) exhibited improved lithium storage performance as compared to the pure VO2(B). In particular, when the doping amount is 3%, NixVO2(B) showed the highest lithium storage capacity, best cycling stability, smallest electrochemical reaction resistance, and largest lithium diffusion coefficient. For example, after 100 cycles at a current density of 32.4 mA/g, NixVO2(B) delivered a high specific discharge capacity of 163.0 mAh/g, much higher than that of the pure VO2(B) sample (95.5 mAh/g). Therefore, Ni doping is an effective strategy for enhancing the lithium storage performance of VO2(B). View Full-Text
Keywords: lithium ion batteries; cathode material; Ni doping; VO2(B); electrode materials; energy storage and conversion lithium ion batteries; cathode material; Ni doping; VO2(B); electrode materials; energy storage and conversion
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MDPI and ACS Style

Yang, Q.; Zou, Z.; Wu, X.; Li, S.; Zhang, Y. Synthesis and Electrochemical Performance of Ni-Doped VO2(B) as a Cathode Material for Lithium Ion Batteries. Batteries 2019, 5, 46.

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