An Advanced Sodium-Ion Battery Composed of Carbon Coated Na₃V₂(PO₄)₃ in a Porous Graphene Network

Xianhong Rui; Wenping Sun; Chao Wu; Yan Yu; Qingyu Yan

doi:10.1002/adma.201502864

An Advanced Sodium-Ion Battery Composed of Carbon Coated Na₃V₂(PO₄)₃ in a Porous Graphene Network

Adv Mater. 2015 Nov;27(42):6670-6. doi: 10.1002/adma.201502864. Epub 2015 Sep 29.

Authors

Xianhong Rui^{1

2}, Wenping Sun², Chao Wu³, Yan Yu^{3

4}, Qingyu Yan²

Affiliations

¹ School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui, 243002, China.
² School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
³ Max Planck Institute for Solid State Research, Heisenbergstr. 1, Stuttgart, 70569, Germany.
⁴ Key Laboratory of Materials for Energy ConversionChinese Academy of Sciences, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China.

PMID: 26417996
DOI: 10.1002/adma.201502864

Abstract

A 3D hierarchical meso- and macroporous Na3V2(PO4)3-based hybrid cathode with connected Na ion/electron pathways is developed for ultra-fast charge and discharge sodium-ion batteries. It delivers an excellent rate capability (e.g., 86 mA h g(-1) at 100 C) and outstanding cycling stability (e.g., 64% retention after 10,000 cycles at 100 C), indicating its superiority in practical applications.

Keywords: Na3V2(PO4)3; excellent cyclability; porous structures; sodium-ion batteries; ultrafast charging/discharging.