Journal
NANOSCALE
Volume 7, Issue 21, Pages 9399-9404Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr01737h
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Funding
- National Natural Science Foundation of China [21325417, 51173162]
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A novel all graphene coaxial fiber supercapacitor (GCS) was fabricated, consisting of a continuously wet-spun core graphene fiber and facilely dip-coated graphene sheath. GCS is flexible, lightweight and strong, and is also accompanied by a high specific capacitance of 205 mF cm(-2) (182 F g(-1)) and high energy density of 17.5 mu W h cm(-2) (15.5 W h kg(-1)). The energy density was further improved to 104 mu W h cm(-2), when an organic ion liquid electrolyte was used.
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