Fabrication of solid thin film electrolyte and LiCoO2 by aerosol flame pyrolysis deposition

✍ Scribed by Kihyun Cho; Jangwon Oh; Taewon Lee; Dongwook Shin

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 987 KB
• Volume: 80
• Category: Article
• ISSN: 0165-2370
• DOI: 10.1016/j.jaap.2007.04.007

✦ Synopsis

Aerosol flame pyrolysis deposition method was applied to deposit the oxide glass electrolyte film and LiCoO 2 cathode for thin film type Li-ion secondary battery. The thicknesses of as-deposited porous LiCoO 2 and Li 2 O-B 2 O 3 -P 2 O 5 electrolyte film were about 6 mm and 15 mm, respectively. The deposited LiCoO 2 was sintered for 2 min at 700 8C to make partially densified cathode layer, and the deposited Li 2 O-P 2 O 5 -B 2 O 3 glass film completely densified by the sintering at 700 8C for 1 h. After solid state sintering process the thicknesses were reduced to approximately 4 mm and 6 mm, respectively. The cathode and electrolyte layers were deposited by continuous deposition process and integrated into a layer by co-sintering. It was demonstrated that Aerosol flame deposition is one of the good candidates for the fabrication of thin film battery.