Open AccessElectrospinning Sn@C nanofibers for high-performance flexible lithium ion battery anodes
Author(s) -
Jing Li,
Peichao Zou,
Ronghe Wang,
Cheng Yang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/300/4/042021
Subject(s) - anode , electrospinning , materials science , lithium (medication) , nanoarchitectures for lithium ion batteries , energy storage , battery (electricity) , nanofiber , nanotechnology , electrode , carbon nanofiber , power density , tin , chemical engineering , composite material , carbon nanotube , power (physics) , chemistry , polymer , metallurgy , medicine , physics , quantum mechanics , endocrinology , engineering
Lithium ion batteries are considered as one of the most important energy storage devices in the field of portable electronics and electric vehicles. However, exploring novel and high-performance electrode materials are still urgently needed, as the state-of-the-art lithium ion batteries cannot meet the ever-increasing demand for high energy/power densities. Metal tin and its oxides are promising lithium ion battery anodes, but suffering from drastic volume change and crack issues during lithium intercalation/deintercalation cycling. Here we report a feasible technology to fabricate flexible and free-standing Sn@C nanofiber membrane via electrospinning method, consisting of one dimensional carbon matrix with Sn nanoparticles confined inside. Owing to the superior electron/ion transfer ability and confinement effect from the carbon coating, the as-obtained Sn@ C electrode exhibits a capacity of 668 mA h g −1 at 1 A g −1 even after 350 cycles and a reversible capacity of 263 mA h g −1 can be achieved at an ultrahigh current density of 10 A g −1 . In all, this work provides a promising anode for practical application on lithium ion batteries.