期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 26, 页码 21781-21790出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b04045
关键词
Bi2MoO6; anode; high capacity; ultralong-life; lithium-ion batteries
资金
- National Natural Science Foundation of China [51425401, 51690161]
- Fundamental Research Funds for the Central Universities [N160903001, 160907001]
- China Postdoctoral Science Foundation [2016M591441]
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 degrees 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.
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