Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries

Chinese Journal of Applied Chemistry

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Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries

DU Xinchuan^a^b,HUANG Gang^a^b,WANG Limin^a^c^*()

^aState Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,CAS,Changchun 130022,China
^bUniversity of Chinese Academy of Science,Beijing 130049,China
^cChangzhou Institute of Energy Storage Materials & Devices,Changzhou,Jiangsu 213000,China

Received:2015-07-21 Published:2015-12-01 Online:2015-12-01
Contact: WANG Limin
Supported by:
Supported by the National Natural Science Foundation of China(No.20111061)

Abstract

Abstract:

With carbon spheres(CS) as the template, vanadium pentoxide(V₂O₅) hollow microspheres were synthesized by the solvothermal reaction of vanadium oxytriisopropoxide(VOT). The structure, morphology and component of V₂O₅ hollow microspheres were characterized by scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results reveal that V₂O₅ hollow microspheres are perfectly generated with the diameter of ~1.5 μm and the wall thickness of ~100 nm. As a cathode material for rechargeable Mg batteries, the initial discharge capacity is up to 140 mA·h/g at the rate of 0.2 C and maintains 110 mA·h/g after 20 cycles.

Key words: vanadium pentoxide, hollow microspheres, rechargeable magnesium batteries, cathode material

DU Xinchuan, HUANG Gang, WANG Limin. Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries[J]. Chinese Journal of Applied Chemistry.

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Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries

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