Experimental investigation on PEM fuel cell flooding mitigation under heavy loading condition

Chen, Huicui; Zhang, Ruirui; Xia, Zhifeng; Weng, Qianyao; Zhang, Tong; Pei, Pucheng

doi:10.1016/j.apenergy.2023.121632

Cited by 18 publications

(1 citation statement)

References 45 publications

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“…High-temperature proton-exchange membrane fuel cells (HT-PEMFCs) represent a compelling solution to global challenges to eliminate the emissions of greenhouse gases and shift toward sustainable energy sources. − These fuel cells offer numerous advantages, including exceptional energy efficiency, minimal environmental impact due to zero emissions, and versatility that spans from powering electric vehicles to providing backup power in remote or grid-independent locations. , At the heart of HT-PEMFCs lies the critical component known as the polymer electrolyte membrane (PEM). The effective functioning of PEMFCs heavily relies on this membrane, which not only conducts protons between the anode and the cathode but also serves as a physical barrier to prevent the mixing of fuel and oxidant gases within the cell …”

Section: Introductionmentioning

confidence: 99%

Advancing High-Temperature PEMFCs: Synthesis and Characterization of Poly(2,5-benzimidazole) Nanoclay/SPVC Composite Membranes

Altaf,

Ahmed,

Khan

et al. 2024

Energy Fuels

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High-temperature proton-exchange membrane fuel cells (HT-PEMFCs) have indeed emerged as highly efficient devices for energy conversion with numerous applications, ranging from portable electronics to transportation. The development of advanced electrolyte materials is imperative to enhance the PEMFCs' stability and performance. Herein, we use sulfonated polyvinyl chloride (SPVC) and 2,5-benzimidazole-modified montmorillonite (AB-MMT) to create a series of novel composite electrolytes for PEMFC via a solution-casting method. PVC, well known for its excellent film-forming properties, is combined with modified MMT, a natural inorganic clay with a high surface area and ion-exchange capability (IEC). The composite polymer electrolyte membranes (PEMs) are further doped with phosphoric acid (PA) at varying concentrations. The structural, morphological, and electrochemical properties of prepared PEMs are systematically analyzed using FTIR, XRD, SEM, and impedance spectroscopies. The effect of PA on PEMs in terms of water uptake, mechanical and chemical stability, and ionic conductivity is also analyzed. The synergy between SPVC and AB-MMT creates a favorable microenvironment for ion transport within the membrane, contributing to enhanced PEMFC performance. The experimental results demonstrate that 10SBZMP exhibits a substantial increase in ionic conductivity, i.e., 0.069 at 150 °C and RH 98% with a power density of 0.252 W/cm 2 . The development of advanced materials like these paves the way for more efficient and reliable fuel-cell technologies, contributing to the sustainable energy landscape of the future.

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