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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Freeze-dried WS2 composites with low content of graphene as high-rate lithium storage materials

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Title
Freeze-dried WS2 composites with low content of graphene as high-rate lithium storage materials
Author
Xu, XiaodongRout, Chandra SekharYang, JieunCao, RuiguoOh, PilgunShin, Hyeon SukCho, Jaephil
Keywords
LI-ION BATTERIES; FEW-LAYER WS2; ELECTROCHEMICAL PERFORMANCE; ASSISTED SYNTHESIS; ENERGY-CONVERSION; FACILE SYNTHESIS; ANODE MATERIALS; MOS2; NANOSHEETS; NANOTUBES
Issue Date
2013-12
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.1, no.46, pp.14548 - 14554
Abstract
Few layered WS2-graphene nanosheet composites are prepared by a simple and scalable hydrothermal reaction and a subsequent freeze-drying method. The freeze-dried WS2-graphene composite exhibits good cycling stability and outstanding high-rate capability of lithium storage. The reversible capacity remains 647 mA h g-1 after 80 cycles at a current density of 0.35 A g-1. Comparable capacities of 541 and 296 mA h g-1 can still be maintained when cycling at even higher current densities of 7 and 14 A g-1 (7 and 14 mA cm-2) respectively.
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DOI
10.1039/c3ta13329j
ISSN
2050-7488
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SNS_Journal Papers
ECHE_Journal Papers
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