Degradation behavior of membrane–electrode-assembly materials in 10-cell PEMFC stack

Luo, Zixue; Li, D.; Tang, Haolin; Pan, Mu; Ruan, Ruineng

doi:10.1016/j.ijhydene.2006.02.029

Cited by 107 publications

(42 citation statements)

References 19 publications

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“…The degradation sources with respect to various material selections and different operation conditions are identified in the first stage and in the second stage, mathematical models are developed to predict the lifetime of fuel cells, in which expressions of the aging phenomena and aging effects are incorporated into performance models through constitutive relations [10]. But in most literatures, the lifetime study of fuel cells remains in the first stage, with mostly experimental characterizations presented [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A quick evaluating method for automotive fuel cell lifetime

Pei

Chang

Tang

2008

International Journal of Hydrogen Energy

331

117

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Section: Introductionmentioning

confidence: 99%

A quick evaluating method for automotive fuel cell lifetime

Pei

Chang

Tang

2008

International Journal of Hydrogen Energy

331

117

View full text Add to dashboard Cite

“…This will be discussed in more detail in Section 3.1.1. [42][43][44][45][46][47][48][49] ard hydrogen electrode by a H 2 SO 4 as used as shown in Fig. 1.…”

Section: Pemfc Cell Reversal Descriptionmentioning

confidence: 99%

“…Catalyst dissolution and agglomeration would occur via carbon support material corrosion [44], Pt loss [13,45], and surface energy reduction during standard fuel cell operations. Generally, the dissolution of Pt in the anode was more stable than in the cathode because of the electrode potential; the Pt particles' dissolution follows Equations (12) and (13) into Pt 2+ , and the standard equilibrium potential is +0.88 V vs. RHE [46].…”

Section: High-performance Catalystmentioning

confidence: 99%

Proton Exchange Membrane Fuel Cell Reversal: A Review

et al. 2016

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Abstract:The H 2 /air-fed proton exchange membrane fuel cell (PEMFC) has two major problems: cost and durability, which obstruct its pathway to commercialization. Cell reversal, which would create irreversible damage to the fuel cell and shorten its lifespan, is caused by reactant starvation, load change, low catalyst performance, and so on. This paper will summarize the causes, consequences, and mitigation strategies of cell reversal of PEMFC in detail. A description of potential change in the anode and cathode and the differences between local starvation and overall starvation are reviewed, which gives a framework for comprehending the origins of cell reversal. According to the root factor of cell starvation, i.e., fuel cells do not satisfy the requirements of electrons and protons of normal anode and cathode chemical reactions, we will introduce specific methods to mitigate or prevent fuel cell damage caused by cell reversal in the view of system management strategies and component material modifications. Based on a comprehensive understanding of cell reversal, it is beneficial to operate a fuel cell stack and extend its lifetime.

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“…상용화 시 PEMFC는 높은 출력을 내기위해 단위전지 보다 스택을 사용하므로 스택에서의 실제 내구성 평가가 이루어져 야 하는데 그렇지 못했다. 스택에서의 MEA 열화 및 내구성은 가 속시험방법보다는 정상 운전 후 수명이 다 했을 때 분석 평가하는 방법을 사용해 많은 비용과 시간이 소모되었다 [6,7]. 그러므로 지 금까지 MEA 의 열화 및 가속화시험 방법에 대해 단위전지에서 얻은 방법을 스택에 적용해 같은 결과가 나오는지 검토해야할 필 † To whom correspondence should be addressed.…”

Section: 서 론unclassified

Accelerated Degradation Test of Electrolyte Membrane in PEMFC Stack

정재진¹,

이세훈²,

이혜리³

et al. 2016

Korean Chemical Engineering Research

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− Until a recent day, degradation of PEMFC (Proton Exchange Membrane Fuel Cells) has been mainly studied in unit cell. But operation and degradation of real PEMFC going along in stack instead of unit cell. Therefore in this work, ADT (Accelerated Degradation Test) of PEMFC was done in stack and the result from stack's test was compared with that of unit cell. The polymer electrolyte membrane was degraded by repeated electrochemical and mechanical degradation method among several ADT methods. Current densities of MEA at 0.6V decreased in stack and unit cell, 28.4% and 27.8% respectively after ADT for 312 hours. Hydrogen crossover current densities of membrane increased in stack and unit cell, 16.8% and 15.2% respectively after ADT for 312 hours. The result of ADT in stack was similar that of ADT in unit cell, which showed that ADT method of unit cell was available to the stack.

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Degradation behavior of membrane–electrode-assembly materials in 10-cell PEMFC stack

Cited by 107 publications

References 19 publications

A quick evaluating method for automotive fuel cell lifetime

A quick evaluating method for automotive fuel cell lifetime

Proton Exchange Membrane Fuel Cell Reversal: A Review

Accelerated Degradation Test of Electrolyte Membrane in PEMFC Stack

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