Direct formic acid fuel cell portable power system for the operation of a laptop computer

Craig M. Miesse, Won Suk Jung, Kyoung J. Jeong, Jae Kwang Lee, Jaeyoung Lee, Jonghee Han, Sung Pil Yoon, SukWoo Nam, Tae Hoon Lim, Seong A. Hong

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

A direct formic acid fuel cell (DFAFC) hybrid power system for a laptop computer has been developed at the Korea Institute of Science and Technology, Fuel Cell Research Center. At the heart of the system is a 15 MEA DFAFC stack capable of 30 W at 60 mW cm-2. Stack characteristics relevant to integration into the power system such as concentration and orientation dependence, dynamic response, and long-term performance are elucidated and the resulting hybrid power system's performance is detailed. The stack's fast dynamic response eliminated the need for significant power buffering in the power conditioning equipment. The MEAs were found to give reduced but stable performance after 3 months of operation. The system is capable of an overall system efficiency of 0.23 (delivered power compared to theoretical power), and can operate under a substantial computing load for 2.5 h using a 280 mL tank of 50 wt.% fuel.

Original languageEnglish
Pages (from-to)532-540
Number of pages9
JournalJournal of Power Sources
Volume162
Issue number1
DOIs
Publication statusPublished - 2006 Nov 8
Externally publishedYes

Fingerprint

Formic acid fuel cells (FAFC)
Laptop computers
formic acid
fuel cells
Dynamic response
dynamic response
power conditioning
Fuel cells
Korea

Keywords

  • Direct formic acid fuel cell
  • Dynamic response
  • Fuel cell stack
  • Hybrid power system
  • Portable power supply

ASJC Scopus subject areas

  • Electrochemistry
  • Energy (miscellaneous)
  • Fuel Technology
  • Materials Chemistry

Cite this

Direct formic acid fuel cell portable power system for the operation of a laptop computer. / Miesse, Craig M.; Jung, Won Suk; Jeong, Kyoung J.; Lee, Jae Kwang; Lee, Jaeyoung; Han, Jonghee; Yoon, Sung Pil; Nam, SukWoo; Lim, Tae Hoon; Hong, Seong A.

In: Journal of Power Sources, Vol. 162, No. 1, 08.11.2006, p. 532-540.

Research output: Contribution to journalArticle

Miesse, CM, Jung, WS, Jeong, KJ, Lee, JK, Lee, J, Han, J, Yoon, SP, Nam, S, Lim, TH & Hong, SA 2006, 'Direct formic acid fuel cell portable power system for the operation of a laptop computer', Journal of Power Sources, vol. 162, no. 1, pp. 532-540. https://doi.org/10.1016/j.jpowsour.2006.07.013
Miesse, Craig M. ; Jung, Won Suk ; Jeong, Kyoung J. ; Lee, Jae Kwang ; Lee, Jaeyoung ; Han, Jonghee ; Yoon, Sung Pil ; Nam, SukWoo ; Lim, Tae Hoon ; Hong, Seong A. / Direct formic acid fuel cell portable power system for the operation of a laptop computer. In: Journal of Power Sources. 2006 ; Vol. 162, No. 1. pp. 532-540.
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