A review of electrolyte materials and compositions for electrochemical supercapacitors

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DOIResolve DOI: http://doi.org/10.1039/c5cs00303b
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TypeArticle
Journal titleChemical Society Reviews
ISSN0306-0012
Volume44
Issue21
Pages74847539; # of pages: 56
AbstractElectrolytes have been identified as some of the most influential components in the performance of electrochemical supercapacitors (ESs), which include: electrical double-layer capacitors, pseudocapacitors and hybrid supercapacitors. This paper reviews recent progress in the research and development of ES electrolytes. The electrolytes are classified into several categories, including: aqueous, organic, ionic liquids, solid-state or quasi-solid-state, as well as redox-active electrolytes. Effects of electrolyte properties on ES performance are discussed in detail. The principles and methods of designing and optimizing electrolytes for ES performance and application are highlighted through a comprehensive analysis of the literature. Interaction among the electrolytes, electro-active materials and inactive components (current collectors, binders, and separators) is discussed. The challenges in producing high-performing electrolytes are analyzed. Several possible research directions to overcome these challenges are proposed for future efforts, with the main aim of improving ESs' energy density without sacrificing existing advantages (e.g., a high power density and a long cycle-life) (507 references).
Publication date
PublisherRoyal Society of Chemistry
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Energy, Mining and Environment
Peer reviewedYes
NPARC number21277416
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Record identifier46ca3dc8-2452-40f7-a756-5de634574afd
Record created2016-03-09
Record modified2016-05-09
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