콘텐츠 본문
논문 해외 국제전문학술지(SCI급) LITHIUM BIS(OXALATE)BORATE AS AN ELECTROLYTE SALT FOR SUPERCAPACITORS IN ELEVATED TEMPERATURE APPLICATIONS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2017-12
- 저자명 박정호
- 학술지명 JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY
- 발행처명 KOREAN ELECTROCHEMISTRY SOC
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
논문 초록 (Abstract)
The electrolyte plays one of the most significant roles in the performance of electrochemical supercapacitors. Most liquid or ganic 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 lithi um bis(oxalate)borate(LiBOB)salt-based electrolyte was evaluate d in a symmetric supercapacitor assembled with activated carbon elec trodes and differentelectrolyte blends of acetonitrile(ACN) and propyle ne carbonate(PC). The electrochemical properties were investigat ed using linear sweep voltammetry, cyclic voltammetry, galvanostatic charge-discharge cycles, and electrochemical impedance spec troscopy. In particular, it was shown that LiBOB is stable at an operati onal temperature of 80 degrees C, and that, blending the solvent s helps to improve the overall performance of the supercapacitor. The cells retained about 81% of the initial specific capacitance aft er 1000 galvanic cycles in the potential range of 0-2.5 V. Thus, L iBOB/ACN:PC electrolytes exhibit a promising role in supercapacitor ap plications under elevated temperature conditions.
