Self-Assembled 3D Hierarchical Porous Bi2MoO6 Microspheres toward High Capacity and Ultra-Long-Life Anode Material for Li-Ion Batteries

Shuang Yuan; Yue Zhao; Weibin Chen; Chun Wu; Xiaoyang Wang; Lina Zhang; Qiang Wang

doi:10.1021/acsami.7b04045

Self-Assembled 3D Hierarchical Porous Bi₂MoO₆ Microspheres toward High Capacity and Ultra-Long-Life Anode Material for Li-Ion Batteries

ACS Appl Mater Interfaces. 2017 Jul 5;9(26):21781-21790. doi: 10.1021/acsami.7b04045. Epub 2017 Jun 15.

Authors

Shuang Yuan^{1

2}, Yue Zhao¹, Weibin Chen¹, Chun Wu¹, Xiaoyang Wang¹, Lina Zhang¹, Qiang Wang^{1

2}

Affiliations

¹ Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University , Shenyang 110819, China.
² Department of New Energy Science & Engineering, School of Metallurgy, Northeastern University , Shenyang 110819, China.

PMID: 28585800
DOI: 10.1021/acsami.7b04045

Abstract

Three-dimensional (3D) hierarchical porous Bi₂MoO₆ microspheres (HPBMs) were successfully prepared and used as the anode material in Li-ion batteries (LIBs) for the first time. The HPBMs showed a high capacity (>830 mAh·g^-1, 734.5 mAh·cm^-2), high rate capability (20 A·g^-1, 177.7 mAh·g^-1), and superior long cycle life (>2700 cycles) in the temperature range 5-55 °C without adding any other conductive carbon materials, such as graphene and carbon nanotubes. This can be reasonably attributed to their substantially high surface area, 3D hierarchical porous structure, and homogeneous conductive matrix composed of metallic nanoparticles. HPBMs surprisingly showed a high reversible discharge capacity of 537.2 mAh·g^-1 (475.4 mAh·cm^-2) and an average discharge voltage >3.0 V even when coupled with LiCoO₂ in a full cell. The results highlight the feasibility of HPBMs as anode material for LIBs.

Keywords: Bi2MoO6; anode; high capacity; lithium-ion batteries; ultralong-life.