Research on Proton Exchange Membrane Fuel Cell with Gradient Gas Diffusion Layer

詹志刚 1; 张永生 1; 2; 肖金生 1; 罗志平 1; 潘牧 1

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Research on Proton Exchange Membrane Fuel Cell with Gradient Gas Diffusion Layer

更新时间：2025-12-08

- Research on Proton Exchange Membrane Fuel Cell with Gradient Gas Diffusion Layer
- Vol. 42, Issue 6, Pages: 770-773+787(2008)
- 作者机构：
  
  武汉理工大学材料复合新技术国家重点实验室,武汉,430070
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK91
- Online First：09 June 2008，
  
  Published：2008
- 稿件说明：
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詹志刚 1, 张永生 1, 2, et al. Research on Proton Exchange Membrane Fuel Cell with Gradient Gas Diffusion Layer[J]. 2008, 42(6): 770-773+787.
DOI：

詹志刚 1, 张永生 1, 2, et al. Research on Proton Exchange Membrane Fuel Cell with Gradient Gas Diffusion Layer[J]. 2008, 42(6): 770-773+787. DOI：

摘要

为了考察质子交换膜燃料电池气体扩散层孔隙率的梯度变化对扩散层排水、导电、导气以及电池整体性能的影响

在综合考虑电化学反应、水的生成、相变及传输、氧气传输、膜中水传输等因素的基础上

研究了扩散层孔隙率沿厚度方向梯度变化时燃料电池内部的传输现象和电池性能.结果表明

梯度扩散层能够提高液态水和气体的通过能力

从而提高电池的性能

且孔隙率梯度越大排水性能越好.

Abstract

In order to investigate the influence of gradient gas diffusion layer(GDL)in proton exchange membrane fuel cell(PEMFC)on discharging water

conducting electricity and diffusing gas in GDL and the total performance of the cell

the transport phenomena in the fuel cell and its performance that has GDLs with gradient porosity along the thickness are numerically investigated. The results show that the gradient GDL has larger water flux and better gas diffusion effects than the uniform GDL has

thus improves the performance of the cell. Moreover

bigger the porosity gradient is

more powerful the discharging ability of GDL is.

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references

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汪圣龙. 质子交换膜燃料电池梯度扩散层研究[D]. 武汉: 武汉理工大学材料复合新技术国家重点实验室,2005.

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