Facile synthesis of reduced graphene oxide wrapped nickel silicate hierarchical hollow spheres for long-life lithium-ion batteries

Chunjuan Tang; Jinzhi Sheng; Chang Xu; S. M. B. Khajehbashi; Xuanpeng Wang; Ping Hu; Xiujuan Wei; Qiulong Wei; Liang Zhou; Liqiang Mai

doi:10.1039/C5TA04680G

Facile synthesis of reduced graphene oxide wrapped nickel silicate hierarchical hollow spheres for long-life lithium-ion batteries†

Chunjuan Tang,‡^ab Jinzhi Sheng,‡^a Chang Xu,^a S. M. B. Khajehbashi,^a Xuanpeng Wang,^a Ping Hu,^a Xiujuan Wei,^a Qiulong Wei,^a Liang Zhou^a and Liqiang Mai

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
E-mail: mlq518@whut.edu.cn

^b Department of Mathematics and Physics, Luoyang Institute of Science and Technology, Luoyang 471023, PR China

Abstract

Layered silicate is a new type of electrode material with high reversible capacity. However, its poor electrical conductivity leads to rapid capacity decay. To solve this problem, reduced graphene oxide (RGO) wrapped nickel silicate (NiSiO) hollow spheres are successfully synthesized. The hollow structure provides sufficient free space to accommodate the volume variation during lithiation/de-lithiation and the RGO improves the electrical conductivity. The resulting NiSiO/RGO delivers a capacity of 400 mA h g⁻¹ at 500 mA g⁻¹ after 1000 cycles, making the NiSiO/RGO composite a promising anode material for lithium-ion batteries.

Journal of Materials Chemistry A

Facile synthesis of reduced graphene oxide wrapped nickel silicate hierarchical hollow spheres for long-life lithium-ion batteries†

Abstract

Supplementary files

Article information

Download Citation

Author version available

Permissions

Facile synthesis of reduced graphene oxide wrapped nickel silicate hierarchical hollow spheres for long-life lithium-ion batteries

Social activity

Search articles by author

Spotlight

Advertisements