中国化学工程学报(英文版)2024，Vol.69Issue(5) ：1-12.DOI:10.1016/j.cjche.2024.01.023

Effect of carbon material and surfactant on ink property and resulting surface cracks of fuel-cell microporous layers

Zhekun Chen Weitong Pan Longfei Tang Xueli Chen Fuchen Wang
中国化学工程学报(英文版)2024，Vol.69Issue(5) ：1-12.DOI:10.1016/j.cjche.2024.01.023
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Effect of carbon material and surfactant on ink property and resulting surface cracks of fuel-cell microporous layers

Zhekun Chen 1Weitong Pan 2Longfei Tang 1Xueli Chen 1Fuchen Wang1
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作者信息

  • 1. Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China
  • 2. Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China;Key Laboratory of Pressure Systems and Safety,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China
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Abstract

Ensuring the consistency of electrode structure in proton-exchange-membrane fuel cells is highly desired yet challenging because of wide-existing and unguided cracks in the microporous layer(MPL).The first thing is to evaluate the homogeneity of MPL with cracks quantitatively.This paper proposes the ho-mogeneity index of a full-scale MPL with an area of 50 cm2,which is yet to be reported in the literature to our knowledge.Besides,the effects of the carbon material and surfactant on the ink and resulting MPL structure have been studied.The ink with a high network development degree produces an MPL with low crack density,but the ink with high PDI produces an MPL with low crack homogeneity.The polarity of the surfactant and the non-polarity of polytetrafluoroethylene(PTFE)are not mutually soluble,resulting in the heterogeneous PTFE distribution.The findings of this study provide guidelines for MPL fabrication.

Key words

Proton-exchange-membrane fuel cell/Microporous layer/Crack density/Crack homogeneity/Polytetrafluoroethylene distribution/Surfactant

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基金项目

China National Postdoctoral Program for Innovative Talents(BX20230121)

China Postdoctoral Science Foundation(2023M741163)

Shanghai Super Postdoctoral Incentive Program(2023741)

出版年

2024
中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
参考文献量4
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