Interfacial water distribution behaviors in high performance bipolar membrane fuel cell

Zhengjian Li; Sian Chen; Liting Cui; Haining Wang; Shanfu Lu; Yan Xiang

doi:10.1016/j.jpowsour.2022.231754

Interfacial water distribution behaviors in high performance bipolar membrane fuel cell

Zhengjian Li
, Sian Chen
, Liting Cui
, Haining Wang^*
, Shanfu Lu^*
, Yan Xiang

^*Corresponding author for this work

School of Energy and Power Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The acidic-alkaline interface of a bipolar membrane fuel cell (BPMFC) is the place to generate water, which significantly affect the output performance of BPMFC by regulating the water distribution due to the ion conductivity and oxygen reduction reaction (ORR) kinetics in cathode. To investigate the influence of water diffusivity (D_w) on the water distribution, four alkaline polymer electrolytes with different D_w is selected as anion exchange membrane or alkaline electrolyte ionomer to assemble BPMFCs. A combined experimental and simulated study reveals the positive correlation relationship of D_w to the water distribution and performance of BPMFC. By increasing the D_w of the alkaline polymer electrolytes, the interfacial-generated water amount can be increased and promptly transport to the cathode, thereby satisfying the ion conductivity and increasing the ORR kinetics, and breakthrough the peak power density of the BPMFC with 1.06 W cm⁻² without humidification.

Original language	English
Article number	231754
Journal	Journal of Power Sources
Volume	542
DOIs	https://doi.org/10.1016/j.jpowsour.2022.231754
State	Published - 15 Sep 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Alkaline polymer electrolyte
Bipolar membrane fuel cell
Output performance
Water diffusivity
Water distribution

Access to Document

10.1016/j.jpowsour.2022.231754

Cite this

@article{c08a288c548743a2988c0afb12a988bc,

title = "Interfacial water distribution behaviors in high performance bipolar membrane fuel cell",

abstract = "The acidic-alkaline interface of a bipolar membrane fuel cell (BPMFC) is the place to generate water, which significantly affect the output performance of BPMFC by regulating the water distribution due to the ion conductivity and oxygen reduction reaction (ORR) kinetics in cathode. To investigate the influence of water diffusivity (Dw) on the water distribution, four alkaline polymer electrolytes with different Dw is selected as anion exchange membrane or alkaline electrolyte ionomer to assemble BPMFCs. A combined experimental and simulated study reveals the positive correlation relationship of Dw to the water distribution and performance of BPMFC. By increasing the Dw of the alkaline polymer electrolytes, the interfacial-generated water amount can be increased and promptly transport to the cathode, thereby satisfying the ion conductivity and increasing the ORR kinetics, and breakthrough the peak power density of the BPMFC with 1.06 W cm−2 without humidification.",

keywords = "Alkaline polymer electrolyte, Bipolar membrane fuel cell, Output performance, Water diffusivity, Water distribution",

author = "Zhengjian Li and Sian Chen and Liting Cui and Haining Wang and Shanfu Lu and Yan Xiang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = sep,

day = "15",

doi = "10.1016/j.jpowsour.2022.231754",

language = "英语",

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journal = "Journal of Power Sources",

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}

TY - JOUR

T1 - Interfacial water distribution behaviors in high performance bipolar membrane fuel cell

AU - Li, Zhengjian

AU - Chen, Sian

AU - Cui, Liting

AU - Wang, Haining

AU - Lu, Shanfu

AU - Xiang, Yan

PY - 2022/9/15

Y1 - 2022/9/15

N2 - The acidic-alkaline interface of a bipolar membrane fuel cell (BPMFC) is the place to generate water, which significantly affect the output performance of BPMFC by regulating the water distribution due to the ion conductivity and oxygen reduction reaction (ORR) kinetics in cathode. To investigate the influence of water diffusivity (Dw) on the water distribution, four alkaline polymer electrolytes with different Dw is selected as anion exchange membrane or alkaline electrolyte ionomer to assemble BPMFCs. A combined experimental and simulated study reveals the positive correlation relationship of Dw to the water distribution and performance of BPMFC. By increasing the Dw of the alkaline polymer electrolytes, the interfacial-generated water amount can be increased and promptly transport to the cathode, thereby satisfying the ion conductivity and increasing the ORR kinetics, and breakthrough the peak power density of the BPMFC with 1.06 W cm−2 without humidification.

AB - The acidic-alkaline interface of a bipolar membrane fuel cell (BPMFC) is the place to generate water, which significantly affect the output performance of BPMFC by regulating the water distribution due to the ion conductivity and oxygen reduction reaction (ORR) kinetics in cathode. To investigate the influence of water diffusivity (Dw) on the water distribution, four alkaline polymer electrolytes with different Dw is selected as anion exchange membrane or alkaline electrolyte ionomer to assemble BPMFCs. A combined experimental and simulated study reveals the positive correlation relationship of Dw to the water distribution and performance of BPMFC. By increasing the Dw of the alkaline polymer electrolytes, the interfacial-generated water amount can be increased and promptly transport to the cathode, thereby satisfying the ion conductivity and increasing the ORR kinetics, and breakthrough the peak power density of the BPMFC with 1.06 W cm−2 without humidification.

KW - Alkaline polymer electrolyte

KW - Bipolar membrane fuel cell

KW - Output performance

KW - Water diffusivity

KW - Water distribution

UR - https://www.scopus.com/pages/publications/85132536697

U2 - 10.1016/j.jpowsour.2022.231754

DO - 10.1016/j.jpowsour.2022.231754

M3 - 文章

AN - SCOPUS:85132536697

SN - 0378-7753

VL - 542

JO - Journal of Power Sources

JF - Journal of Power Sources

M1 - 231754

ER -

Interfacial water distribution behaviors in high performance bipolar membrane fuel cell

Abstract

UN SDGs

Keywords

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