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Cotton-Textile-Enabled, Flexible Lithium-Ion Batteries with Enhanced Capacity and Extended Lifespan
November 30 2015
November 23 2015
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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).