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- Title
Hierarchical Zn<sub>3</sub>V<sub>2</sub>O<sub>8</sub> microspheres interconnected via conductive carbon nanotubes as promising anode materials for lithium-ion battery applications.
- Authors
Liu, Ming-Ming; Yu, Hai-Tao; Yuan, Lang; Yi, Ting-Feng; He, Fei; Xie, Ying
- Abstract
Zn3V2O8 was considered as a promising anode material for lithium-ion battery (LIB), because of its high theoretical specific capacity, environmental friendliness, and ease of availability. However, the large volume change and low electronic conductivity of Zn3V2O8 in repeated charge/discharge cycles have severely limited its applications. To solve the above issues, hierarchical Zn3V2O8 microspheres assembled by two-dimensional (2D) nanosheets were successfully synthesized, and carbon nanotubes (CNTs) were further introduced to cross-link the Zn3V2O8 microspheres. The interconnected nature of the three-dimensional (3D) conducting network and the special hierarchical morphology were beneficial for improving the stability and conductivity of the composite, leading to the reduction of the impedance and a significant improvement of the electrochemical performance. The reversible capacity of the as-prepared composite can achieve 1049.5 mAh·g−1 at a current density of 0.2 A·g−1 with a capacity retention of ~ 81% after 100 cycles. It is suggested that morphology modulation coupled with interconnecting CNT network is an effective method to boost the electrochemical performance of the anode materials for lithium-ion batteries.
- Publication
Rare Metals, 2023, Vol 42, Issue 8, p2601
- ISSN
1001-0521
- Publication type
Article
- DOI
10.1007/s12598-023-02338-5