Hamenu, Louis Madzvamuse, Alfred Hu, Mengyang Mohammed, Latifatu Bon, Chris Yeajoon Kim, Sang Jun Cho, Won Il Park, Jongwook Ko, Jang Myoun 2024-01-20T00:01:59Z 2024-01-20T00:01:59Z 2021-09-03 2017-12 1567-1739 https://pubs.kist.re.kr/handle/201004/121993 Supercapacitors provide us with enormous power output for energy storage. Their energy output however still remains quite low compared to other energy storage materials like the batteries. This paper reports a highly stable liquid electrolyte which is composed of mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate(EMIBF4) ionic liquid with highly stable lithium bis(oxalate) borate LiBOB/acetonitrile( ACN). The electrolytes display remarkable supercapacitive performance at a high voltage of 3 V. The electrochemical impedance spectroscopy shows that EMIBF4 helps to reduce the bulk resistance and charge transfer resistance across the electrode surfaces by facilitating high ionic diffusions across the electrode/electrolyte interface. The high stability and high ionic conductivity of the electrolytes reflected in the good cycling performance tests at 2.8 V with a maximum delivery capacitance of 19.5Fg(-1) after 1000cycles at a high scan rate of 200 mVs(-1). (C) 2017 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV SOLID-STATE SUPERCAPACITORS IONIC LIQUIDS POLYMER ELECTROLYTES ENERGY-STORAGE PERFORMANCE LIBOB CONDUCTIVITY ELECTRODES BATTERY Pushing the limits of lithium bis(oxalate)borate/acetonitrile using 1-ethyl-3-methylimidazolium tetrafluoroborate for supercapacitors Article 10.1016/j.cap.2017.09.010 1 CURRENT APPLIED PHYSICS, v.17, no.12, pp.1639 - 1645 CURRENT APPLIED PHYSICS 17 12 1639 1645 scie scopus kci 000414807400009 2-s2.0-85029711560 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article SOLID-STATE SUPERCAPACITORS IONIC LIQUIDS POLYMER ELECTROLYTES ENERGY-STORAGE PERFORMANCE LIBOB CONDUCTIVITY ELECTRODES BATTERY Lithium bis(oxalate)borate Electyrolyte Supercapacitors Ionic liquid