@inproceedings{15c8dcd23abe49c6a11f338d8b2cfe5b,
title = "Performance degradation analysis of DMFC by freeze/thaw cycles",
abstract = "At sub-zero temperature, the startup capability and performance of DMFC is poor. Performance degradation of direct methanol fuel cell (DMFC) was investigated by freeze/thaw cycle. Maximum power density of DMFC decreased as the cycle number increased by 71% after 35 cycles of -20°C and 60°C and by 62% after 12 cycles of -32°C and 60°C. However, the cells purged by nitrogen gas before freeze stage were found to have less performance loss than the cell which was not purged. Electrical resistance increase of the cells with gas purge was also less. These results showed that it is necessary to remove the water in DMFCs to maintain stable performance under sub-zero temperature and gas purging is proved to be effective for storage under subzero temperature.",
author = "Yumi Oh and Kim, {Sang Kyung} and Seongyop Lim and Peck, {Dong Hyun} and Doohwan Jung and Yonggun Shul",
year = "2011",
language = "English",
series = "EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition",
publisher = "ENEA",
pages = "203--204",
editor = "Chiara Barchiesi and Michela Chianella and Paola Lunghi and Stefano Ubertini and Viviana Cigolotti",
booktitle = "EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition",
note = "4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011 ; Conference date: 14-12-2011 Through 16-12-2011",
}