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A facile prestrain-stick-release assembly of stretchable supercapacitors based on highly stretchable and sticky hydrogel electrolyte

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dc.title A facile prestrain-stick-release assembly of stretchable supercapacitors based on highly stretchable and sticky hydrogel electrolyte en Tang, Qianqiu Chen, Mingming Wang, Gengchao Bao, Hua Sáha, Petr
dc.relation.ispartof Journal of Power Sources
dc.identifier.issn 0378-7753 OCLC, Ulrich, Sherpa/RoMEO, JCR 2015
utb.relation.volume 284
dc.citation.spage 400
dc.citation.epage 408
dc.type article
dc.language.iso en
dc.publisher Elsevier S.A.
dc.identifier.doi 10.1016/j.jpowsour.2015.03.059
dc.subject Polyacrylamide en
dc.subject Prestrain-stick-release assembly en
dc.subject Stickiness en
dc.subject Stretchable hydrogel electrolyte en
dc.subject Stretchable supercapacitor en
dc.description.abstract A facile prestrain-stick-release assembly strategy for the stretchable supercapacitor device is developed based on a novel Na2SO4-aPUA/PAAM hydrogel electrolyte, saving the stretchable rubber base conventionally used. The Na2SO4-aPUA/PAAM hydrogel electrolyte exhibits high stretchability (>1000%), electrical conductivity (0.036 S cm-1) and stickiness. Due to the unique features of the hydrogel electrolyte, the carbon nanotube@MnO2 film electrodes can be firmly stuck to two sides of the prestrained hydrogel electrolyte. Then, by releasing the hydrogel electrolyte, homogenous buckles are formed for the film electrodes to get a full stretchable supercapacitor device. Besides, the high stickiness of the hydrogel electrolyte ensures its strong adhesion with the film electrodes, facilitating ion and electronic transfer of the supercapacitor. As a result, excellent electrochemical performance is achieved with the specific capacitance of 478.6 mF cm-2 at 0.5 mA cm-2 (corresponding to 201.1 F g-1) and capacitance retention of 91.5% after 3000 charging-discharging cycles under 150% strain, which is the best for the stretchable supercapacitors. © 2015 Elsevier B.V. All rights reserved. en
utb.faculty University Institute
utb.identifier.rivid RIV/70883521:28610/15:43873037!RIV16-MSM-28610___
utb.identifier.obdid 43873457
utb.identifier.scopus 2-s2.0-84924804076
utb.identifier.wok 000354140700051
utb.identifier.coden JPSOD
utb.source j-scopus 2015-05-28T11:38:57Z 2015-05-28T11:38:57Z
dc.description.sponsorship National Natural Science Foundation of China [51173042]; Shanghai Municipal Science and Technology Commission [12nm0504102]; Fundamental Research Funds for the Central Universities; Czech-Chinese Cooperation [LH14273]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Sáha, Petr
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