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Electronically conductive MXene clay-polymer composite binders for electrochemical double-layer capacitor electrodes

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Abstract
Electrochemical double-layer capacitors recently attract strong attention because of their fast and stable charge/ discharge characteristics and their high-power density. To improve the performance of EDLCs, it is necessary to conduct comprehensive studies on electrode, including the binder. An ideal binder for an EDLC must have high adhesion ability to the electrode components and should be electronically conductive. Here, we synthesize a composite binder consisting of MXene clay and poly(acrylonitrile-co-butyl acrylate) using an in-situ emulsion polymerization. This is a first report of an in-situ polymerization method to make a conducting composite binder with good mechanical, adhesion, and electronic conducting properties. An EDLC containing electrodes of activated carbon and MXene clay/poly(acrylonitrile-co-butyl acrylate) composite binder shows a high specific power of 8510 W kg(-1) with a high specific energy of 23.6 Wh kg(-1). This is a significant improvement over EDLC electrodes containing only activated-carbon and poly(acrylonitrile-co-butyl acrylate). The excellent performance is attributable to the binder's high conductivity and toughness due to improved interactions among the electrode components.
Author(s)
제염춘효Kasturi SarangJodie Lutkenhaus오은석
Issued Date
2021
Type
Article
Keyword
CapacitorsCircuit componentsElectric propertiesElectrochemical double-layer capacitorElectrodesElectronic components industryMXene clayNitrilesPoly (acrylonitrile-co-butyl acrylate)Polymer industryPolymerizationPolymersWater-dispersed binder
DOI
10.1016/j.jpowsour.2021.230138
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9239
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A670430054&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Electronically%20conductive%20MXene%20clay-polymer%20composite%20binders%20for%20electrochemical%20double-layer%20capacitor%20electrodes&offset=0&pcAvailability=true
Publisher
JOURNAL OF POWER SOURCES
Location
네덜란드
Language
영어
ISSN
0378-7753
Citation Volume
506
Citation Number
1
Citation Start Page
230138
Citation End Page
230138
Appears in Collections:
Engineering > Chemical Engineering
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