A novel battery system for using in extremely low temperature conditions
- Authors
- Yoon, Young Soo; Cho, Sung Baek; Nam, Sang Cheol
- Issue Date
- Jun-2012
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Thin film battery; Reserve battery; Stack; Thermal switch; Heating source
- Citation
- ELECTROCHIMICA ACTA, v.71, pp.86 - 91
- Journal Title
- ELECTROCHIMICA ACTA
- Volume
- 71
- Start Page
- 86
- End Page
- 91
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/84826
- DOI
- 10.1016/j.electacta.2012.03.082
- ISSN
- 0013-4686
- Abstract
- A module with 11 thin film battery (TFB) stacks was fabricated to investigate its internal resistance and charging characteristics to a real capacitor with 150 mu F. Each cell consisted of thin layers of LiCoO2, LiPON and Li on a ceramic substrate, and each layer was deposited by radio frequency (RF) + direct current (DC) hybrid magnetron sputtering. RF reactive sputtering, and thermal evaporation, respectively. In order to increase the effective surface area of the TFB in a limited small volume, 11 cells were stacked and connected in parallel. By designing the thermal switch with a heating source, its capacitor charging performance was well maintained, even at temperatures below -30 degrees C, as well as at room temperature. Charging to greater than 4V was completed within 0.06 sec at room temperature and within 0.13 s at -30 degrees C due to the heat-up process. A novel battery system consisting of the TFB module with a thermal switch and a heating source proved to be a promising substitute for the ampoule type reserve battery in small sized electrical fuses, even at very low temperatures. (C) 2012 Elsevier Ltd. All rights reserved.
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