Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 30, Issue 3, Pages 2552-2562Publisher
SPRINGER
DOI: 10.1007/s10854-018-0530-y
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Funding
- National Natural Science Foundation of China [21203236, 51664047]
- National and Local Joint Engineering Laboratory of Advanced Electronic Packaging Materials (Shenzhen Development and Reform Committee) [2017-934]
- Leading Scientific Research Project of Chinese Academy of Sciences [QYZDY-SSW-JSC010]
- Guangdong Provincial Key Laboratory [2014B030301014]
- Science & Technology Project of Educational Commission of Jiangxi Province, China [GJJ161198]
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The development of flexible three-dimensional (3D) nanostructured electrodes has been regarded as a promising strategy to fulfill high-performance supercapacitors. Herein, we report a cost-effective method for fabricating flexible supercapacitor electrodes consisting of NiCo-LDH nanosheets electrodeposited on 3D porous Ni arrays/conductive cloth (NiCo-LDH@3D Ni/CC). The hierarchical 3D porous Ni arrays with high conductivity and large specific area not only provide effective interconnected conductive networks, but also enable a high mass loading of active materials. The resultant NiCo-LDH@3D Ni/CC electrode exhibits a high mass capacitance of 2248Fg(-1) and a high areal capacitance of 3260mFcm(-2) at 5mAcm(-2). Ultimately, the symmetric solid-state supercapacitor assembled with NiCo-LDH@3D Ni/CC displays a high areal capacitance of 116.7mFcm(-2) at 5mAcm(-2), and excellent cycling stability (full capacitance retention after 10,000 cycles at 10mAcm(-2)). This work demonstrates a facile and low-cost strategy for flexible energy storage applications.
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