Mg2VO4/VO2 Nanocomposites as Aqueous Zinc Ion Battery Cathodes with High Capacity and High Ion Diffusion Rate
Source abstract
Abstract
As one of the representative vanadium-based electrode materials for aqueous zinc ion batteries (AZIBs), VO 2 (B) owns excellent cycling stability and specific capacity, but the strong interlattice interactions lead to poor rate performance. Herein, multiphase, high ion diffusion rate Mg 2 VO 4 /VO 2 (MVO/VO) heterostructures composed of nanoparticles were introduced and constructed based on a solid preinsertion method. The electrochemical results show that the MVO/VO electrode has excellent cycling stability and impressively high capacity and ion diffusion rate compared with pure VO 2 (B) (VO) and Mg 2 VO 4 (MVO). Moreover, the reversible capacity of MVO/VO is found to be 393.6 mA h g –1 at a relatively low current density (0.3 A g –1 ). The MVO/VO electrode still exhibits a capacity retention of 83.6% even after 1000 charge/discharge applications, which indicates a stable performance. Finally, this contribution offers insights into the design of high-capacity and high ion diffusion rate AZIB cathode materials.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced battery technologies research · Supercapacitor Materials and Fabrication · Advancements in Battery Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, PR China
School of Physics and Technology, Xin Jiang University, Urumqi, Xinjiang 830046, China
School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China
Xinjiang Research Institute of Non-Ferrous Metals, Urumqi 830011, China
Xinjiang Uygur Autonomous Region Research Institute of Measurement and Testing, Urumqi 830011, China
Funding
National Natural Science Foundation of China · Research??of??technologies??for??optoelectronic??materials??based??on??zinc/manganese-based compounds.Research????of??technologies??for??extraction??of??characteristic??metal??ore??resources · Natural Science Foundation of Xinjiang Province · Tianshan Innovation Team Program of Xinjiang Uygur Autonomous Region
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