6M KOH에서 아연공기전지 음극의 아연/폴리아닐린 복합재의 부식 거동 = Corrosion Behavior of Zinc/Polyaniline Composites as an Anode for Zn-air Batteries in 6M KOH

국문 초록 (Abstract)

아연공기전지는 아연 전극의 부식반응이 수소 발생 반응(HER)으로 전해질을 소모하고 배터리 수명을단축한다는 문제점이 있다. 이 문제를 해결하기 위해 아연/폴리아닐린 복합재를 용액 혼합을 통해 제조하였고,복합재를 통해 아연 전극의 부식 방지 효과가 향상됨을 확인하였다. 0.5 및 1 wt.% 폴리아닐린을 함유한 아연/폴리아닐린 복합 전극은 가역성과 사이클 성능이 향상되었다

다국어 초록 (Multilingual Abstract)

The widespread use of Zn-air batteries has been impeded by problems associated with the Zn electrode.
Among them, the corrosion reaction of the electrode leads to a hydrogen evolution reaction (HER), which consumesthe electrolyte and eventually shortens the battery lifetime. To solve this problem, Zn/polyaniline (PANI)composites were produced using a solution mixing method. The morphology and composition of the PANI on Znpowders were characterized by scanning electron microscopy, Fourier transform infrared (FT-IR) spectroscopy,and X-ray diffraction techniques. The effects of the Zn/PANI composites for anti-corrosion were examined bypotentio-dynamic polarization and chrono-amperometric curves. The anti-corrosion effect improved withincreasing PANI content. Cyclic voltammetry and charge-discharge cyclic tests were conducted to confirm theelectrochemical performance of the Zn/PANI composites electrode. The composites electrode with 0.5and 1 wt.% PANI showed improved reversibility and cycling performances.

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