Journal
ENERGY STORAGE MATERIALS
Volume 29, Issue -, Pages 281-286Publisher
ELSEVIER
DOI: 10.1016/j.ensm.2020.04.024
Keywords
Ambipolar conducting polymers; Vertically standing graphene; Supercapacitors; Charge trap; n-doping stability
Funding
- National Natural Science Foundation of China [21975087, 91833304, 21905098, 51521002]
- China Postdoctral Science Foundation [2018M643067]
- Natural Science Foundation of Guangdong Province [2019B030301003]
- 111 Project
- Fundamental Research Funds for the Central Universities
- Thousand Youth Talents Plan
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Ambipolar conducting polymers make a promising supercapacitor electrode material by transporting both holes and electrons. However, for a long time, their performance is limited due to the poor electron transport ability and stability problem, featuring charges trapped in the bulky polymers without being sufficiently released. To increase the material conductivity and reduce the transport distance of ACPs based electrode material are the rational approaches to tackle this issue. Here we demonstrate the integration of vertically standing graphene with ACPs to provide enhanced conductivity and suppressed charge trap effect. The composite electrode material exhibits prolonged cycling life (88% after 10,000 cycles) and makes the best of the high voltage advantage of ACPs to provide a high specific area energy density of 19.6 mu Wh cm(-2) (at the power density of 150 mu W cm(-2)).
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