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Issue 46, 2017
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Rice husk-derived hybrid lithium-ion capacitors with ultra-high energy

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Abstract

Inspired by nature, both high-performance Si/C and activated carbon (AC) energy storage materials with a hierarchically biomimetic structure can be prepared from rice husks (RHs), and further serve as promising anode and cathode materials for hybrid lithium-ion capacitors (LICs), respectively. Benefitting from the high capacity and good rate and cycling performances of the Si/C anode material and RH-derived AC (RAC) cathode material, the designed Si/C||RAC LICs give a high energy density of 227 W h kg−1 at a power density of 1146 W kg−1, and ∼181 W h kg−1 can still be retained even at an ultra-high power density of ∼32 595 W kg−1. Furthermore, the RH-derived LICs also show a long-term cycling stability (16 000 cycles at ∼16 800 W kg−1).

Graphical abstract: Rice husk-derived hybrid lithium-ion capacitors with ultra-high energy

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Supplementary files

Publication details

The article was received on 11 Aug 2017, accepted on 06 Nov 2017 and first published on 06 Nov 2017


Article type: Paper
DOI: 10.1039/C7TA07088H
Citation: J. Mater. Chem. A, 2017,5, 24502-24507
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    Rice husk-derived hybrid lithium-ion capacitors with ultra-high energy

    B. Li, Z. Xiao, M. Chen, Z. Huang, X. Tie, J. Zai and X. Qian, J. Mater. Chem. A, 2017, 5, 24502
    DOI: 10.1039/C7TA07088H

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