대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제34권7호
  • /
  • Pages.829-835
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  • 2010
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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튜브형 고분자전해질 연료전지와 일회용 수소발생소자를 결합한 미세유체소자용 전원공급소자

Disposable Power Generator with Tubular PEMFC and H2 Generator for the Power Source of Microfluidic Devices

  • 김광호 (강원대학교 기계메카트로닉스공학과 및 의료.바이오신소재융복합연구단) ;
  • 서영호 (강원대학교 기계메카트로닉스공학과 및 의료.바이오신소재융복합연구단) ;
  • 김병희 (강원대학교 기계메카트로닉스공학과 및 의료.바이오신소재융복합연구단)
  • Kim, Kwang-Ho (Dept. of Mechanical and Mechatronics Engineering and Medical & Bio-Materials Research Center, Kangwon Nat'l Univ.) ;
  • Seo, Young-Ho (Dept. of Mechanical and Mechatronics Engineering and Medical & Bio-Materials Research Center, Kangwon Nat'l Univ.) ;
  • Kim, Byeong-Hee (Dept. of Mechanical and Mechatronics Engineering and Medical & Bio-Materials Research Center, Kangwon Nat'l Univ.)
  • 투고 : 2009.11.19
  • 심사 : 2010.05.06
  • 발행 : 2010.07.01
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초록

본 연구에서는 미세유체소자의 전원소자로 적용하기 위한 일회용 수소발생소자와 튜브형 고분자전해질 연료전지로 구성된 일회용 전원소자에 관한 것이다. 튜브형 고분자전해질 연료전지는 1.52 mm의 직경을 가지며, 수소발생소자는 알루미늄과 5M 수산화나트륨의 반응을 통해 수소를 발생시켜 튜브형 고분자전해질 연료전지로 공급하게 된다. 단위 튜브형 고분자전해질 연료전지는 순수한 수소에 대해여 0.81V 의 개방전압과 0.35V에서 $16.4\;mW/cm^2$의 최대전력밀도를 나타내었으며, 수소발생기는 15 분 동안 $11.6\;m{\ell}$의 수소를 생성하였다. 튜브형 고분자전해질 연료전지와 수소발생기가 결합된 일회용 전원소자는 아무런 주변장치 없이 10 분 동안 1.06 mW (0.46V)의 일정한 전력을 발생하였으며, 3 개가 직렬로 연결된 고분자전해질 연료전지는 10 분 동안 LED(2.5 mW@1.8V)를 동작시켰다.

This paper presents a disposable power generator for microfluidic devices; the power generator has a tubular PEMFC and a $H_2$ generator. The tubular PEMFC has a tubular MEA (diameter: 1.52 mm) that is supported by a spiral wire electrode. The $H_2$ generator supplied $H_2$ to the tubular PEMFC; $H_2$ was generated via the reaction of Al foil (27 mg) and 5 M NaOH (0.12 ml). The open circuit voltage and power density of a unit cell of the tubular PEMFC were 0.81 V and $16.4\;mW/cm^2$ (0.35 V), respectively. The $H_2$ generator generated 11.6 ml $H_2$ for 15min. The power generator was continuously operated for 15 min at 0.64 mW (0.71 V) and for 10 min at 1.06 mW (0.46 V). We experimentally verified that it is feasible to use the proposed power generator as a power source for microfluidic devices; in the experiment, an LED (2.5 mW; 1.8 V) was lit for 10 min by using three serially connected TPEMFCs and one $H_2$ generator.

키워드

참고문헌

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