Fuel cell stack redesign and component integration radically increase power density

Tongsh, Chasen; Wu, Siyuan; Jiao, Kui; Huo, Wenming; Du, Qing; Park, Jae Wan; Xuan, Jin; Wang, Huizhi; Brandon, Nigel P.; Guiver, Michael D.

doi:10.1016/j.joule.2023.12.003

Cited by 36 publications

(1 citation statement)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Energy conservation and environmental preservation present formidable challenges within the context of industrialized society. 1 , 2 Owing to its pollution-free characteristics and remarkable efficiency, PEMFCs have emerged as one of the important development directions of clean energy. 3 , 4 Their application has already reached a certain level of maturation within the automotive sector, as discerned by the active integration of FCEVs by prominent automobile manufacturers.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Zhang,

Luo,

Zhang

et al. 2024

iScience

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Zhang,

Luo,

Zhang

et al. 2024

iScience

View full text Add to dashboard Cite

Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Lu,

Cui,

Zhao

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Proton Exchange Membrane Fuel Cells (PEMFC) consist of channels that require efficient drainage for optimum performance. However, it remains a grand challenge to achieve both directed and high‐speed active drainage in PEMFC channels. This greatly limits current PEMFC performance. Herein, inspired by respiratory cilia, a bioinspired structural design strategy is introduced into the channel surface to significantly enhance its active droplet transport efficiency. Two artificial cilia arrays are fabricated and named as plane‐bottom artificial cilia array (PACA) and concave‐bottom artificial cilia array (CACA) according to their respective shapes. PACA demonstrates stable directional transport. The droplet speed reaches as high as 86 mm s−1 with droplet volumes ranging from 10 to 20 µL. This is surpassed by CACA. Its speed reaches as high as 163 mm s−1 for droplet volumes ranging from 10 to 50 µL. PEMFC experimental evaluation of diameter sizes shows that CACA can be tuned for enhancing its electrochemical performance. CACA‐8 achieves the maximum power density (0.5339 W cm−2) at 1.1864 A cm−2, representing an 18.70% increase compared to conventional PEMFC channels. This work provides a promising strategy for the stable and efficient transport of liquid water in PEMFC.

show abstract

Similarities and Differences between Gas Diffusion Layers Used in Proton Exchange Membrane Fuel Cell and Water Electrolysis for Material and Mass Transport

Zhang,

Meng,

Chen

et al. 2024

Advanced Science

View full text Add to dashboard Cite

Proton‐exchange membrane fuel cells (PEMFCs) and water electrolysis (PEMWE) are rapidly developing hydrogen energy conversion devices. Catalyst layers and membranes have been studied extensively and reviewed. However, few studies have compared gas diffusion layers (GDLs) in PEMWE and PEMFC. This review compares the differences and similarities between the GDLs of PEMWE and PEMFC in terms of their material and mass transport characteristics. First, the GDL materials are selected based on their working conditions. Carbon materials are prone to rapid corrosion because of the high anode potential of PEMWEs. Consequently, metal materials have emerged as the primary choice for GDLs. Second, the mutual counter‐reactions of the two devices result in differences in mass transport limitations. In particular, water flooding and the effects of bubbles are major drawbacks of PEMFCs and PEMWE, respectively; well‐designed structures can solve these problems. Imaging techniques and simulations can provide a better understanding of the effects of materials and structures on mass transfer. Finally, it is anticipated that this review will assist research on GDLs of PEMWE and PEMFC.

show abstract

Fuel cell stack redesign and component integration radically increase power density

Cited by 36 publications

References 56 publications

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Similarities and Differences between Gas Diffusion Layers Used in Proton Exchange Membrane Fuel Cell and Water Electrolysis for Material and Mass Transport

Contact Info

Product

Resources

About