Journal
NANO LETTERS
Volume 15, Issue 12, Pages 8194-8203Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b03698
Keywords
lithium-ion battery; nickel sulfide; graphene; nanostructure; flexible power source
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Funding
- U.S. National Science Foundation [CMMI-1418696, CMMI-1358673]
- i6 Virginia Innovation Partnership
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Activated cotton textile (ACT) with porous tubular fibers embedded with NiS2 nanobowls and wrapped with conductive graphene sheets (ACT/NiS2-graphene) was fabricated by a simple two-step heat treatment method. When used as a binder-free electrode, the ACT/NiS2-graphene electrode exhibited an exceptional electrochemical performance including ultrahigh initial discharge capacity (-4710 mAh g(-1) at 0.01 degrees C), magnificent rate performance (the discharge capacitance retained at -,645 mAh g(-1) at 1 degrees C after 100 cycles) and excellent cyclic stability (the discharge capacitance recovered to,-1016 mAh g(-1) at 0.1 degrees C after 400 cycles).
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