Journal
NATURE COMMUNICATIONS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms10310
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Funding
- Early Career Scheme of Research Grants Council of Hong Kong SAR, China [CityU 109213]
- Science Technology and Innovation Committee of Shenzhen Municipality [JCYJ20140419115507579]
- Natural Science Foundation of China (NSFC) [21474058]
- Tsinghua University Scientific Research Project [2014Z22069]
- State Key Laboratory for Modification of Chemical Fibres and Polymer Materials, Donghua University [LK1404]
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Superior self-healability and stretchability are critical elements for the practical wide-scale adoption of personalized electronics such as portable and wearable energy storage devices. However, the low healing efficiency of self-healable supercapacitors and the small strain of stretchable supercapacitors are fundamentally limited by conventional polyvinyl alcohol-based acidic electrolytes, which are intrinsically neither self-healable nor highly stretchable. Here we report an electrolyte comprising polyacrylic acid dual crosslinked by hydrogen bonding and vinyl hybrid silica nanoparticles, which displays all superior functions and provides a solution to the intrinsic self-healability and high stretchability problems of a supercapacitor. Supercapacitors with this electrolyte are non-autonomic self-healable, retaining the capacitance completely even after 20 cycles of breaking/healing. These supercapacitors are stretched up to 600% strain with enhanced performance using a designed facile electrode fabrication procedure.
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