Journal
NATURE COMMUNICATIONS
Volume 9, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-06914-7
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Funding
- National Natural Science Foundation of China [21736006, 21706120, 21474052]
- Natural Science Foundation of Jiangsu Province [BK20170973]
- National Key Research and Development Program of China [2016YFB0401700]
- China Postdoctoral Science Foundation [2018M630549]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Fund of State Key Laboratory of Materials-Oriented Chemical Engineering [ZK201720, ZK201704]
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Flexible supercapacitors have recently attracted intense interest. However, achieving high energy density via practical materials and synthetic techniques is a major challenge. Here, we develop a hetero-structured material made of black phosphorous that is chemically bridged with carbon nanotubes. Using a microfluidic-spinning technique, the hybrid black phosphorous-carbon nanotubes are further assembled into non-woven fibre fabrics that deliver high performance as supercapacitor electrodes. The flexible supercapacitor exhibits high energy density (96.5 mWh cm(-3)), large volumetric capacitance (308.7 F cm(-3)), long cycle stability and durability upon deformation. The key to performance lies in the open two-dimensional structure of the black phosphorous/carbon nanotubes, plentiful channels (pores <1 nm), enhanced conduction, and mechanical stability as well as fast ion transport and ion flooding. Benefiting from this design, high-energy flexible supercapacitors can power various electronics (e.g., light emitting diodes, smart watches and displays). Such designs may guide the development of next-generation wearable electronics.
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