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Volume 7 Biosensors Journal
ISSN: 2090-4967 Electrochemistry 2018
June 11-12, 2018
June 11-12, 2018 | Rome, Italy
4th International Conference on Electrochemistry
Lithium bis(oxalate)borate electrolyte salt for supercapacitors in elevated temperature applications
Jang Myoun Ko and Choong Sup Yoon
Hanbat National University, South Korea
The electrolyte plays one of the most significant roles in the performance of electrochemical supercapacitors. Most liquid
organic electrolytes used commercially have temperature and potential range constraints, which limit the possible energy
and power output of the supercapacitor. The effect of elevated temperature on a lithium bis(oxalate)borate(LiBOB) salt-based
electrolyte was evaluated in a symmetric supercapacitor assembled with activated carbon electrodes and different electrolyte
blends of acetonitrile (ACN) and propylene carbonate (PC). The electrochemical properties were investigated using linear
sweep voltammetry, cyclic voltammetry, galvanostatic charge–discharge cycles, and electrochemical impedance spectroscopy.
In particular, it was shown that LiBOB is stable at an operational temperature of 80°C, and that, blending the solvents helps
to improve the overall performance of the supercapacitor. The cells retained about 81% of the initial specific capacitance
after 1000 galvanic cycles in the potential range of 0–2.5 V. Thus, LiBOB/ACN:PC electrolytes exhibit a promising role in
supercapacitor applications under elevated temperature conditions.
Biography
Jang Myoun Ko have been studying electrical energy storage materials including electrolytes and electrodes based on organic and inorganic chemistry for many
kinds of batteries and supercapacitors.
Jang Myoun Ko et al., Biosens J 2018, Volume 7
DOI: 10.4172/2090-4967-C1-003