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http://dx.doi.org/10.5229/JKES.2002.5.1.027

Development and Charge-Discharge Performance Analysis of Direct Methanol Fuel Cell Power Pack for Mobile Phones  

Han, Jae-Sung (Fuel Cell Project, Research and Development Center, SK Corporation)
Kim, Young-Shol (Fuel Cell Project, Research and Development Center, SK Corporation)
Park, Eun-Seong (Fuel Cell Project, Research and Development Center, SK Corporation)
Publication Information
Journal of the Korean Electrochemical Society / v.5, no.1, 2002 , pp. 27-29 More about this Journal
Abstract
We report a fuel cell power supply unit for mobile phone which operates at room temperature and ambient pressure using liquid methanol and air. The unit consists of a direct methanol fuel cell (DMFC) and a back-up battery connected parallely to the fuel cell. DMFC supplies half of the required power and the back-up battery supplies the other half during talk mode. In standby mode, DMFC covers $100\%$ of the required power and charges the back-up battery as well, Eight unit cells, each having $9 cm^2$ of active area, were connected in series in order to raise the output volotage to $2.5\~3.9V$, which is typical for most mobile phones.
Keywords
DMFC; Mobile phone; Battery; Methanol;
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