Flexible zinc-air batteries have many merits, including low cost, high safety, environmentally friendliness applicability, etc. One of the key factors to improve the performance of flexible zinc-air batteries is to use a gel electrolyte. In this study, gel electrolytes were synthesized from potato, sweet potato, and corn starch. In a comparison of each starch, the corn starch-based gel electrolyte showed the highest discharge capacity of 12.41 mAh/cm2 in 20 mA and 6.47 mAh/cm2 in 30 mA. It also delivered a higher specific discharge capacity of 7.06 mAh/cm2 than the other materials after 100° bending. In addition, the electrochemical impedance spectroscopy (EIS) was analyzed to calculate the ionic conductivity. The potato, sweet potato, and corn starch-based gel electrolytes showed electrolyte resistances (Re) of 0.306, 0.298, and 0.207 Ω, respectively. In addition, the corn starch-based gel electrolyte delivered the highest ionic conductivity of 0.121 S cm-1 among the other gel electrolytes. Thus, the corn starch-based gel electrolyte was verified to improve the performance of flexible zinc-air batteries

Abstract
1. 서 론
2. 실 험
    2.1. 전분 기반 젤 전해질 제조 및 아연-공기 전지 조립
    2.2. 측정 및 분석
3. 결과 및 고찰
    3.1. 재료 특성
    3.2. 방전 거동
    3.3. 전기화학적 임피던스 특성
4. 결 론
Acknowledgement
References

• 정병진(한라대학교 공과대학 신소재화학공학과) | Byeong Jin Jeong (Department of Advanced Materials & Chemical Engineering, College of Engineering, Halla University)
• 조용남(한라대학교 공과대학 신소재화학공학과) | Yong Nam Jo (Department of Advanced Materials & Chemical Engineering, College of Engineering, Halla University) Corresponding author