Battery-Supercapacitor Hybrid Devices: Recent Progress and Future Prospects.
TL;DR: The fundamental scientific principle, structure, and possible classification of Battery‐supercapacitor hybrid device (BSH) are addressed, and the recent advances on various existing and emerging BSHs are reviewed, with the focus on materials and electrochemical performances.
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Abstract: Design and fabrication of electrochemical energy storage systems with both high energy and power densities as well as long cycling life is of great importance. As one of these systems, Battery-supercapacitor hybrid device (BSH) is typically constructed with a high-capacity battery-type electrode and a high-rate capacitive electrode, which has attracted enormous attention due to its potential applications in future electric vehicles, smart electric grids, and even miniaturized electronic/optoelectronic devices, etc. With proper design, BSH will provide unique advantages such as high performance, cheapness, safety, and environmental friendliness. This review first addresses the fundamental scientific principle, structure, and possible classification of BSHs, and then reviews the recent advances on various existing and emerging BSHs such as Li-/Na-ion BSHs, acidic/alkaline BSHs, BSH with redox electrolytes, and BSH with pseudocapacitive electrode, with the focus on materials and electrochemical performances. Furthermore, recent progresses in BSH devices with specific functionalities of flexibility and transparency, etc. will be highlighted. Finally, the future developing trends and directions as well as the challenges will also be discussed; especially, two conceptual BSHs with aqueous high voltage window and integrated 3D electrode/electrolyte architecture will be proposed.
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Citations
Ultrathin holey reduced graphene oxide/Ni(picolinic acid)2 papers for flexible battery-supercapacitor hybrid devices
Chao Yang,Qianqian Pan,Qi Jia,Wentao Qi,Haoming Wei,Shuhua Yang,Nantao Hu,Bingqiang Cao,Bingqiang Cao +8 more
TL;DR: In this paper, a novel flexible battery-supercapacitor hybrid (BSH) device based on the holey reduced graphene oxide (HRGO) anode and the HRGO/Ni(picolinic acid)2 (Ni(PA)2) cathode was presented.
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TL;DR: In this article, multi-shelled NiCo2S4 hollow microspheres have been used as potential electrode materials for electrochemical energy storage due to its attractive structure, reach chemistry and excellent conductivity.
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