title: Yolk-Shell Sn@C Eggette-like Nanostructure: Application in Lithium-Ion and Sodium-Ion Batteries.
abstract: Yolk-shell carbon encapsulated tin (Sn@C) eggette-like compounds (SCE) have been synthesized by a facile method. The SCE structures consist of tin cores covered by carbon membrane networks with extra voids between the carbon shell and tin cores. The novel nanoarchitectures exhibit high electrochemical performance in both lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). As anodes for LIBs, the SCE electrodes exhibit a specific capacity of ∼850 mA h g(-1) at 0.1 C (100 mA g(-1)) and high rate capability (∼450 mA h g(-1) remains) at high current densities up to 5 C (5000 mA g(-1)). For SIBs, the SCE electrodes show a specific capacity of ∼400 mA h g(-1) at 0.1 C and high rate capacity (∼150 mA h g(-1) remains) at high current densities up to 5 C (5000 mA g(-1)).
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Site
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Ziming
authors.initials: Z
authors.lastname: Wang
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: LinYu
authors.initials: L
authors.lastname: Yang
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Guo
authors.affiliation: School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, China.
authors.forename: Lizi
authors.initials: L
authors.lastname: Cheng
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications , Beijing 100876, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Lei
authors.affiliation: School of Materials Science & Engineering (SMSE), Beijing Institute of Technology , Beijing 100876, China.
authors.forename: Wenjun
authors.initials: W
authors.lastname: Wang
keywords: Sn; eggette-like compounds; lithium-ion batteries; sodium-ion batteries; yolk−shell structure