超级电容器
电解质
硼
化学
星团(航天器)
无机化学
电化学
有机化学
电极
计算机科学
物理化学
程序设计语言
作者
Costana Ionica-Bousquet,David Muñoz‐Rojas,William J. Casteel,Ronald M. Pearlstein,Gopu Kumar,Guido P. Pez,M. Rosa Palacín
标识
DOI:10.1016/j.jpowsour.2010.08.082
摘要
Abstract Solutions of novel fluorinated lithium dodecaborate (Li 2 B 12 F x H 12− x ) salts have been evaluated as electrolytes in nonaqueous asymmetric supercapacitors with Li 4 Ti 5 O 12 as negative electrode, and activated carbon (AC) as positive electrode. The results obtained with these new electrolytes were compared with those obtained with cells built using standard 1 M LiPF 6 dissolved in ethylene carbonate and dimethyl carbonate (EC:DMC; 1:1, v/v) as electrolyte. The specific energy, rate capability, and cycling performances of nonaqueous asymmetric cells based on these new electrolyte salts were studied. Cells assembled using the new fluoroborate salts show excellent reversibility, coulombic efficiency, rate capability and improved cyclability when compared with the standard electrolyte. These features confirm the suitability of lithium-fluoro-borate based salts to be used in nonaqueous asymmetric supercapacitors.
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