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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received May 14, 2018
Accepted June 22, 2018

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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순수 수소 공급조건에서 정치용 PEMFC MEA와 차량용 MEA 성능비교

Performance Comparison Between Stationary PEMFC MEA and Automobile MEA under Pure Hydrogen Supply Condition

오소형 이미화 이학주¹ 김욱원¹ 박정우² 박권필^†

Sohyeong Oh Mihwa L Hakju¹ Wookwon Kim¹ Jeong-Woo Park² Kwonpil Park^†

순천대학교 화학공학과, 57922 전라남도 순천시 중앙로 255 ¹전력연구원, 34056 대전광역시 유성구 문지로 105 ²(주)평산전력기술, 50924 경상남도 김해시 활천로 15번길 22

Department of Chemical Engineering, Sunchon National University, 255, Jungang-ro, Suncheon-si, Jeollanam-do, 57922, Korea ¹KEPCO, 105, Munji-ro, Yuseong-gu, Daejeon, 34056, Korea ²Pyungsan Power TEC. CO., alcheon-ro 15beon-gil, Gimhae-si, Gyeongsangnam-do 50924, Korea

parkkp@sunchon.ac.kr

Korean Chemical Engineering Research, August 2018, 56(4), 469-473(5), 10.9713/kcer.2018.56.4.469 Epub 2 August 2018

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Abstract

개질가스를 일반적으로 사용하는 정치용 PEMFC에 순수 수소를 공급했을 때 그 특성을 차량용 막과 전극 합체(MEA) 와 비교하였다. 수소 공급량을 변화시키며 anode에서 수소공급량이 전체 성능에 미치는 영향을 비교하였다. 수소를 1.0~1.7 과잉(stoi.)범위에서 공급량을 변화시켰을 때 정치용이나 차량용 모두 OCV에 미치는 영향은 거의 없었다. 0.7 V에서 정치용 MEA의 전류밀도는 차량용보다 약 16% 높았다. 그리고 상대습도를 변화시키며 I-V 성능, 임피던스, LSV 를 측정하였다. 상대습도 증가에 따라 OCV와 전해질 막 저항이 모두 감소하였다. 정치용 MEA의 수소투과도가 차량용보다 더 낮아 정치용 MEA의 전해질 막의 내구성이 차량용보다 더 높을 수 있음을 보였다.

When pure hydrogen was supplied to the stationary PEMFC generally using the reforming gas, its characteristics were compared with the vehicle PEMFC. The effect of varying the amount of hydrogen supply to the anode on the overall performance was compared. The variation of hydrogen supply in the range of 1.0~1.7 excess (stoi.) had little effect on the OCV of stationary and vehicle MEA (Membrane and Electrode Assembly). At 0.7 V, the current density of the stationary MEA was about 16% higher than that of the vehicle MEA. I-V performance, impedance, and LSV were measured with varying relative humidity. Both OCV and electrolyte membrane resistances decreased with increasing relative humidity. The hydrogen permeability of the stationary MEA was lower than that of the vehicle MEA, showing that the durability of the stationary membrane could be higher than that of the vehicle membrane.

Keywords

PEMFC Stationary Automobile MEA Hydrogen Performance

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