Authors: Li Qiao Li Qiao Xiuwan Li Xiaolei Sun Hongwei Yue Deyan He
Publish Date: 2017/02/22
Volume: 52, Issue: 12, Pages: 6969-6975
Abstract
Interconnected fullerenelike carbon nanofibers encapsulated with tin nanoparticles SnFLCNFs were synthesized by a facile and scalable electrospinning method using fullerenelike carbon nanoparticles and PVP as carbon sources SEM and TEM revealed that Sn nanoparticles have been uniformly embedded into the nanofibers The selfsupported SnFLCNFs could be directly used as an anode of lithiumion battery without adding any polymer and binder it showed a high initial coulombic efficiency A reversible capacity as high as 846 mA h g−1 remained after 100 cycles at a current density of 02 A g−1 When the current density was raised to 1 A g−1 the reversible capacity maintained 656 mA h g−1 after 300 cycles The excellent electrochemical performance can be attributed to the formation of the efficient Liions diffusion paths and highly conductive crosslinked network in the SnFLCNFs electrode and the interconnected carbon framework can prevent the Sn nanoparticles from pulverization and reaggregation during cycles
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