Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 24, Issue 29, Pages 7312-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201705555
Keywords
carbon based supercapacitors; carbon electrode; device; electrolyte; energy density
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Funding
- Natural Science Foundation of China [21403306]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2014A030306048]
- Tip-top Scientific and Technical Innovative Youth Talents of Guangdong Special Support Program [2015TQ01C205]
- Pearl River S&T Nova Program of Guangzhou [201610010080]
- Technology Planning Project of Guangdong Province [2015B090927007]
- Postdoctoral Scholarship of the Alexander von Humboldt Foundation
- Alexander von Humboldt Foundation
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Carbon based supercapacitors (CSCs), with high output power and long lifespan, are considered as promising power sources for modern electronic devices. The rush to find new approaches for optimizing their electrochemical behaviors is still vibrant, and particularly, widespread enthusiasm was focused on improving the energy density of CSCs through improving the specific capacitance and expanding the operating voltage. In this regard, this article provides a brief review about recent progress and new understanding about the assembly of CSCs with high energy density. Novel applied strategies were highlighted and discussed from the aspects of electrolyte, electrodes, and device modulation. Dynamic and mechanism factors associated with the energy storage process of CSCs are particularly emphasized. Finally, the opportunities and challenges are elaborated in the hope of guiding the promising direction for the design of high-energy CSCs.
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