New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
권호 표지

Preparation of Co-Ni Electrode by Precipitation Method and it's Application for Molten Carbonate Fuel Cell or Optimization of Co-Ni Electrode's Fabrication and it's Application for Molten Carbonate Fuel Cell

침전법을 활용한 Co-Ni 전극의 제조와 용융탄산염 연료전지의 그 적용

  • 김시열 (서울대학교 화학생물공학부) ;
  • ;
  • 류보현 (두산중공업 연료전기개발팀) ;
  • 함형철 (한국과학기술연구원 연료전지연구단) ;
  • 한종희 (한국과학기술연구원 연료전지연구단) ;
  • 윤성필 (한국과학기술연구원 연료전지연구단) ;
  • 남석우 (한국과학기술연구원 연료전지연구단) ;
  • 임태훈 (KIST 연료전지연구단) ;
  • 이호인 (서울대학교 화학생물공학부)
  • Published : 2008.03.25
Download PDF
⟨ Previous Next ⟩

Abstract

In-situ lithiated NiO has been manufactured as a conventional cathode material of molten carbonate fuel cell (MCFC), however this material has a weakness for commercialization of MCFC because NiO is spontaneously dissolved into the electrolyte under MCFC operating conditions, resulting in short circuit between cathode and anode. In this research, therefore, $Co(OH)_2$-coated Ni powder was prepared by precipitation method with controlling pH at low temperature and atmospheric pressure. Modified cathode was fabricated by a conventional tape casting method and sintered at 700$^{\circ}C$ in a $H_2/N_2$ atmosphere, Based on characterization result, Pore size distribution and porosity was suitable for the cathode of MCFC. According to the result of dissolution, Ni solubility of modified cathode was 33% lower than that of conventional cathode. In addition, modified electrode showed a good performance from the single cell operation.

Keywords