콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Effect of cathode/anode area ratio on electrochemical performance of lithium-ion batteries
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2013-12
- 저자명 Bongki Son, Myung-Hyun Ryou, Jaecheol Choi, Sang-Hern Kim, Jang Myoun Ko, Yong Min Lee
- 학술지명 Journal of Power Sources
- 발행처명 Elsevier
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.jpowsour.2013.06.062
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
The effects of cathode/anode area ratio on the electrochemical performance of lithium-ion batteries are investigated using 2032-type coin full cells. As the anode area is increased from 1.13 (ø12 mm) to 2.54 cm2 (ø18 mm) while maintaining the cathode area as 1.13 cm2 (ø12 mm), both coulombic efficiency and discharge capacity at the first formation step become increasingly worse, probably owing to greater formation of solid electrolyte interphase (SEI). Moreover, rate capability also declined with increased anode area, whereas discharge capacity retention behavior during 1C/1C charge/discharge cycling appeared similar except for a slightly decreased capacity of coin cells with larger anode areas. The findings indicate that cathode/anode area ratio should be carefully evaluated to achieve reliable data on electrochemical performance.
