Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effect of Temperature Conditions on Electrochemical Properties for Zinc-Air Batteries

온도조건에 따른 아연-공기 전지의 전기화학적 특성

  • Lee, Ju Kwang (Department of Advanced Materials & Chemical Engineering, College of Engineering, Halla University) ;
  • Jo, Yong Nam (Department of Advanced Materials & Chemical Engineering, College of Engineering, Halla University)
  • 이주광 (한라대학교 신소재화학공학과) ;
  • 조용남 (한라대학교 신소재화학공학과)
  • Received : 2020.11.05
  • Accepted : 2020.11.16
  • Published : 2020.12.27
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Abstract

A zinc-air battery consists of a zinc anode, an air cathode, an electrolyte, and a separator. The active material of the positive electrode is oxygen contained in the ambient air. Therefore, zinc-air batteries have an open cell configuration. The external condition is one of the main factors for zinc-air batteries. One of the most important external conditions is temperature. To confirm the effect of temperature on the electrochemical properties of zinc-air batteries, we perform various analyses under different temperatures. Under 60 ℃ condition, the zinc-air cell shows an 84.98 % self-discharge rate. In addition, high corrosion rate and electrolyte evaporation rate are achieved at 60 ℃. Among the cells stored at various temperature conditions, the cell stored at 50 ℃ delivers the highest discharge capacity; it also shows the highest self-discharge rate (65.33 %). On the other hand, the cell stored at 30 ℃ shows only 2.28 % self-discharge rate.

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