Hierarchical amorphous vanadium oxide and carbon nanotubes microspheres with strong interface interaction for Superior performance aqueous Zinc-ion batteries

Zhiying Wang; Lina Li; Fan Zhao; Siqi Gong; Huiting Xu; Meng Li; Balegen Yekeping; Ruoyan Li; Junjie Qi; Honghai Wang; Chunli Li; Wenchao Peng; Jiapeng Liu

doi:10.1016/j.jcis.2023.04.163

Hierarchical amorphous vanadium oxide and carbon nanotubes microspheres with strong interface interaction for Superior performance aqueous Zinc-ion batteries

J Colloid Interface Sci. 2023 Sep:645:542-550. doi: 10.1016/j.jcis.2023.04.163. Epub 2023 May 2.

Authors

Zhiying Wang¹, Lina Li¹, Fan Zhao¹, Siqi Gong¹, Huiting Xu¹, Meng Li¹, Balegen Yekeping¹, Ruoyan Li¹, Junjie Qi¹, Honghai Wang¹, Chunli Li¹, Wenchao Peng², Jiapeng Liu³

Affiliations

¹ School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China.
² School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
³ School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China. Electronic address: liujiapeng@hebut.edu.cn.

PMID: 37163800
DOI: 10.1016/j.jcis.2023.04.163

Abstract

Aqueous zinc-ion batteries have attracted more and more attention due to their safety, environmental benignity and high theoretical capacity. However, the lack of appropriate cathode materials with high capacity and long cycle life have become an obstacle to the development of aqueous zinc-ion batteries. Herein, the hierarchical amorphous vanadium oxide and carbon nanotubes (a-V₂O₅@CNTs) microspheres with strong interface interaction were successfully prepared by combing facile spray drying technique with annealing treatment. Benefiting from the a-V₂O₅ amorphous characters, CNTs framework high conductivity and hierarchical microspheres with strong interface interaction, the a-V₂O₅@CNTs exhibited abundant active sites, fast reaction kinetics as well as eminent structure stability. As a promising electrode material, the a-V₂O₅@CNTs displayed high specific capacity (480 mAh g^-1 at 0.5 A g^-1), good rate capability and long-term stability under high current density (158 mAh g^-1 at 30 A g^-1 over 1000 cycles). Meanwhile, the corresponding mechanism was further illustrated through different characterizations. Furthermore, the as-assembled flexible pouch battery based on the a-V₂O₅@CNTs delivered outstanding flexibility and feasibility. Hence, this work provides a new idea for developing high performance cathode materials of aqueous zinc-ion batteries.

Keywords: Amorphous vanadium pentoxide; Aqueous zinc-ion batteries; Cathode material; Hierarchical microspheres structure; Strong interface interaction.