Journal
JOURNAL OF POWER SOURCES
Volume 463, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2020.228202
Keywords
Bismuth molybdate; Carbon cloth; Flexible supercapacitors; Nanomaterials; Energy storage
Funding
- National Natural Science Foundation of China [21771004]
- Anhui Provincial Natural Science Foundation [1908085MB32]
- Zhejiang Provincial Natural Science Foundation [LQ19E020001]
- University Natural Science Research Project of Anhui Province
- Anhui Normal University National Undergraduate on Innovation and Entrepreneurship Training Program [S201810370182, S20190307113, 201910370056]
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A typical flexible all-solid-state supercapacitor (FSCs) is proposed based on mesoporous Bi2MoO6 quasi-nanospheres (MBiN) on activated carbon cloth (ACC) hybrid electrode for improving the energy storage density and cyclic stability in this work. Specifically, MBiN is anchored directly on the surface of ACC via an in situ growth routine by using covalent bonding interactions, which shows an ideal pore diameter of 6.46 nm, a large specific area of 233.31 m(2) g(-1), and a small average particle size of similar to 40 nm. Benefit from MBiN and ACC features, the optimized supercapacitor based on MBiN/ACC flexible electrodes displays an ultrahigh mass capacitance (345.0 F g(-1) at 1 A g(-1)) and an excellent rate performance (181.2 F g(-1) at 5 A g(-1)) coupled with a satisfactory capacitance retention of 90.2% after 10000 GCD cycles. Notably, its energy density values up to 110.4 Wh.kg(-1) at a power density of 1429.6 W kg(-1). Furthermore, ACC substrate endows the device with the excellent strength and flexibility under various bending states.
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