Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Synthesis and Electrochemical Evaluation of La1-xSrxCoO3 Cathode Material for Zinc Air Secondary Batteries Application

아연공기이차전지용 La1-xSrxCoO3 양극촉매의 제조 및 이를 적용한 양극의 전기화학적 특성연구

  • 엄승욱 (한국전기연구원 재료응용연구단 전지연구그룹) ;
  • 선양국 (한양대학교 응용화공생명공학부)
  • Published : 2008.05.01
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Abstract

We synthesized nano-sized $La_{1-x}Sr_xCoO_3$ ($x=0.1{\sim}0.4$) cathode catalyst for the zinc air secondary batteries by citrate method, And we measured the cathode's electrochemical characteristics according to content of strontium compose the cathode catalyst. We controlled the pH of precursor solution by 10 in the process of manufacturing the precursor, We heat treated the prepared precursor at various calcination temperature ($500{\sim}900^{\circ}C$), and examined the optimum calcinations temperature by XRD analysis and electrochemical evaluation. We examined the ORR (oxygen reduction reaction) and OER (oxygen evolution reaction) performance of the prepared $La_{1-x}Sr_xCoO_3$ catalyst powder. When we consider ORR and OER performance simultaneously, $La_{0.7}Sr_{0.3}CoO_3$ catalyst has shown the best performance because of its lowest voltage deference between charge and discharge.

Keywords

References

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Cited by

  1. Preparation and Electrochemical Properties of Pr1-x(Sr, Ca)xCoO3Cathode Materials for Zinc Air Batteries vol.12, pp.4, 2009, https://doi.org/10.5229/JKES.2009.12.4.342