title: New Nanoconfined Galvanic Replacement Synthesis of Hollow Sb@C Yolk-Shell Spheres Constituting a Stable Anode for High-Rate Li/Na-Ion Batteries.
abstract: In the current research project, we have prepared a novel Sb@C nanosphere anode with biomimetic yolk-shell structure for Li/Na-ion batteries via a nanoconfined galvanic replacement route. The yolk-shell microstructure consists of Sb hollow yolk completely protected by a well-conductive carbon thin shell. The substantial void space in the these hollow Sb@C yolk-shell particles allows for the full volume expansion of inner Sb while maintaining the framework of the Sb@C anode and developing a stable SEI film on the outside carbon shell. As for Li-ion battery anode, they displayed a large specific capacity (634 mAh g-1), high rate capability (specific capabilities of 622, 557, 496, 439, and 384 mAh g-1at 100, 200, 500, 1000, and 2000 mA g-1, respectively) and stable cycling performance (a specific capacity of 405 mAh g-1after long 300 cycles at 1000 mA g-1). As for Na-ion storage, these yolk-shell Sb@C particles also maintained a reversible capacity of approximate 280 mAh g-1at 1000 mA g-1after 200 cycles.
authors.affiliation: School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, China.
authors.forename: Jun
authors.identifier: 0000-0002-7078-8046
authors.initials: J
authors.lastname: Liu
authors.affiliation: School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, China.
authors.forename: Litao
authors.initials: L
authors.lastname: Yu
authors.affiliation: Max Planck Institute for Solid State Research , Heisenbergstrasse 1, Stuttgart, 70569, Germany.
authors.forename: Chao
authors.initials: C
authors.lastname: Wu
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Yuren
authors.initials: Y
authors.lastname: Wen
authors.affiliation: SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University , Nanjing 210096, China.
authors.forename: Kuibo
authors.initials: K
authors.lastname: Yin
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences , Beijing 100190, China.|National Institute of Clean-and-Low-Carbon Energy , Beijing 102209, China.
authors.forename: Fu-Kuo
authors.initials: FK
authors.lastname: Chiang
authors.affiliation: School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, China.
authors.forename: Renzong
authors.initials: R
authors.lastname: Hu
authors.affiliation: School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, China.
authors.forename: Jiangwen
authors.initials: J
authors.lastname: Liu
authors.affiliation: SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University , Nanjing 210096, China.
authors.forename: Litao
authors.initials: L
authors.lastname: Sun
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences , Beijing 100190, China.|National Institute of Clean-and-Low-Carbon Energy , Beijing 102209, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Gu
authors.affiliation: Max Planck Institute for Solid State Research , Heisenbergstrasse 1, Stuttgart, 70569, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Maier
authors.affiliation: Key Laboratory of Materials for Energy Conversion, Chinese Academy of Sciences, Department of Chemistry and Materials Science, University of Science and Technology of China , Hefei 230026, Anhui China.|Max Planck Institute for Solid State Research , Heisenbergstrasse 1, Stuttgart, 70569, Germany.
authors.forename: Yan
authors.identifier: 0000-0002-3685-7773
authors.initials: Y
authors.lastname: Yu
authors.affiliation: School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, China.
authors.forename: Min
authors.identifier: 0000-0001-5018-2525
authors.initials: M
authors.lastname: Zhu
keywords: Rechargeable batteries; alloying reaction; antimony; carbon-encapsulation; yolk−shell structure