Fabrication of thin film LiCo{sub 0.5}Ni{sub 0.5}O{sub 2} cathode for Li rechargeable microbattery
- Yonsei Univ., Seoul (Korea, Republic of). Dept. of Metallurgical Engineering
- Kangwon National Univ., Chuncheon (Korea, Republic of). Dept. of Materials Engineering
LiCo{sub 0.5}Ni{sub 0.5}O{sub 2} thin film cathodes were fabricated by electron beam evaporation and postannealing in oxygen atmosphere. As-deposited film showed almost amorphous characteristics, but included some crystalline phases. Hexagonal phase of LiCo{sub 0.5}Ni{sub 0.5}O{sub 2} was formed in the films annealed between 500 and 700 C. The crystallinity of the film was improved as the annealing temperature increased to 700 C. Open-circuit voltage (OCV) curves were measured. Especially, the film annealed at 700 C for 10 min showed a similar OCV curve to that of bulk powder cathode. It can be suggested that LiCo{sub 0.5}Ni{sub 0.5}O{sub 2} thin film is suitable for the cathode of Li rechargeable microbattery.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 428153
- Journal Information:
- Journal of the Electrochemical Society, Vol. 143, Issue 11; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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