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Flexible MnS–Carbon Fiber Hybrids for Lithium‐Ion and Sodium‐Ion Energy Storage
Author(s) -
Gao Shuang,
Chen Gang,
Dall'Agnese Yohan,
Wei Yingjin,
Gao Zhongmin,
Gao Yu
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201801979
Subject(s) - materials science , electrospinning , anode , carbon nanofiber , lithium (medication) , electrochemistry , electrode , nanoparticle , carbon fibers , battery (electricity) , nanotechnology , chemical engineering , nanofiber , energy storage , graphene , fiber , ion , composite number , carbon nanotube , composite material , chemistry , polymer , organic chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
Abstract Nanostructures can improve battery capacity and cycle life, especially with sulfide electrodes. In this work, a freestanding flexible electrode, consisting of MnS nanoparticles embedded onto carbon nanofibers, was prepared by electrospinning. The produced hybrid was used as an electrode for lithium‐ion and sodium‐ion batteries. MnS nanoparticles have a size of about 5 nm and the particles are evenly distributed in the carbon nanofibers. Carbon nanofibers act as electronic conductors and buffer the volume change, while MnS nanoparticles react through rapid electrochemical reaction. As a Li‐ion battery anode, this hybrid electrode exhibits specific capacities from 240 mAh g −1 at a high current density of 5 A g −1 , up to 600 mAh g −1 at 200 mA g −1 .