title: Sodium/Lithium storage behavior of antimony hollow nanospheres for rechargeable batteries.
abstract: Sodium-ion batteries (SIBs) have come up as an alternative to lithium-ion batteries (LIBs) for large-scale applications because of abundant Na storage in the earth's crust. Antimony (Sb) hollow nanospheres (HNSs) obtained by galvanic replacement were first applied as anode materials for sodium-ion batteries and exhibited superior electrochemical performances with high reversible capacity of 622.2 mAh g(-1) at a current density of 50 mA g(-1) after 50 cycles, close to the theoretical capacity (660 mAh g(-1)); even at high current density of 1600 mA g(-1), the reversible capacities can also reach 315 mAh g(-1). The benefits of this unique structure can also be extended to LIBs, resulting in reversible capacity of 627.3 mAh g(-1) at a current density of 100 mAh g(-1) after 50 cycles, and at high current density of 1600 mA g(-1), the reversible capacity is 435.6 mAhg(-1). Thus, these benefits from the Sb HNSs are able to provide a robust architecture for SIBs and LIBs anodes.
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Hongshuai
authors.initials: H
authors.lastname: Hou
authors.forename: Mingjun
authors.initials: M
authors.lastname: Jing
authors.forename: Yingchang
authors.initials: Y
authors.lastname: Yang
authors.forename: Yirong
authors.initials: Y
authors.lastname: Zhu
authors.forename: Laibing
authors.initials: L
authors.lastname: Fang
authors.forename: Weixin
authors.initials: W
authors.lastname: Song
authors.forename: Chengchi
authors.initials: C
authors.lastname: Pan
authors.forename: Xuming
authors.initials: X
authors.lastname: Yang
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Ji
keywords: anode; antimony hollow nanospheres; galvanic replacement; lithium-ion battery; sodium-ion battery