Abstract
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 (∼1710 mAh g-1 at 0.01 C), magnificent rate performance (the discharge capacitance retained at ∼645 mAh g-1 at 1 C after 100 cycles) and excellent cyclic stability (the discharge capacitance recovered to ∼1016 mAh g-1 at 0.1 C after 400 cycles).
Original language | English |
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Pages (from-to) | 8194-8203 |
Number of pages | 10 |
Journal | Nano Letters |
Volume | 15 |
Issue number | 12 |
DOIs | |
Publication status | Published - 9 Dec 2015 |
Externally published | Yes |
Keywords
- flexible power source
- graphene
- lithium-ion battery
- nanostructure
- nickel sulfide