Mesoporous activated carbon fiber as electrode material for high-performance electrochemical double layer capacitors with ionic liquid electrolyte

作者: Bin Xu , Feng Wu , Renjie Chen , Gaoping Cao , Shi Chen

DOI: 10.1016/J.JPOWSOUR.2009.09.077

关键词:

摘要: Activated carbon fibers (ACFs) with super high surface area and well-developed small mesopores have been prepared by pyrolyzing polyacrylonitrile fibers and NaOH activation. Their capacitive performances at room and elevated temperatures are evaluated in electrochemical double layer capacitors (EDLCs) using ionic liquid (IL) electrolyte composed of lithium bis (trifluoromethane sulfone) imide (LiN (SO2CF3) 2) and 2-oxazolidinone (C3H5NO2). The surface area of the ACF is as high as 3291m2g− 1. The …

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