- PMMA 구를 주형으로 이용한 3DOM 전극 구조체의 제조
- ㆍ 저자명
- 서경수,정하균,손용근,Seo. Kyoung Soo,Jung. Ha-Kyun,Son. Yongkeun
- ㆍ 간행물명
- 한국재료학회지
- ㆍ 권/호정보
- 2004년|14권 8호|pp.587-594 (8 pages)
- ㆍ 발행정보
- 한국재료학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Three-dimensionally ordered macroporous (3DOM) structures of the $LiCoO_2$ electrode materials for Li secondary batteries were fabricated by using the close-packed arrays of PMMA spheres served as templates. In order to successfully fabricate the cathode materials with highly ordered array form, the metal citrates were applied to new precursors. The precursor/template composites were prepared by the infiltration with metal citrate precursors into the voids of template. By removing the PMMA templates, then, the inverse opal structures with the uniform pores of narrow size distribution were resulted. It was confirmed that the 3DOM $LiCoO_2$ material is to take a single phase of rocksalt (R3m) structure. In addition, 3DOM $LiNiO_2$ and $LiMn_{2}O_4$ cathode materials were fabricated using an identical preparation procedure. Also, the morphology of the 3DOM cathode materials calcined at $500^{circ}C;to;700^{circ}C$ was observed by scanning electron microscope.