Gas cells supply a promising answer for clear vitality with benefits over conventional electrical energy programs, together with prolonged driving vary and better vitality density. Regardless of these advantages, the excessive prices and sturdiness considerations related to gas cell stacks have restricted their commercialization.
The sturdiness of membrane electrode assemblies (MEAs), a key part of proton trade membrane gas cells (PEMFCs), is especially affected by the body sealing construction, which is commonly missed in analysis.
A research, carried out by Tiankuo Chu and Yanbo Wang from Tongji College and the Nationwide Middle of Know-how Innovation for Gas Cell (China), investigates the results of various body sealing buildings on MEA sturdiness.
The researchers utilized a thermal shock bench check as an accelerated getting older methodology to simulate the influence of frequent temperature modifications on MEA sturdiness. The work is printed within the journal Frontiers in Vitality.
The outcomes reveal that thermal shock results in the formation of cracks within the proton trade membrane (PEM) on the hole between the body and the energetic space, in addition to injury to the bonding interface between the body and the membrane. This injury will increase the danger of reactant fuel crossover, a important concern for gas cell efficiency.
The research in contrast single-layer and improved double-layer body buildings and located that the addition of a cushion layer within the double-layer body enhances continuity and reduces membrane deformation, thereby stopping injury.
This analysis offers helpful insights into the design of MEAs, emphasizing the significance of body sealing buildings in enhancing the sturdiness and efficiency of PEMFCs.
By understanding the mechanisms of mechanical attenuation on the body and evaluating the effectiveness of improved body buildings, the research contributes to the event of extra dependable and long-lasting gas cell programs.
The findings are essential for attaining the 5,000-hour sturdiness objective for gas cells, bringing the commercialization of gas cell automobiles nearer to actuality.
Extra data:
Yanbo Wang et al, Enchancment of sturdiness of membrane electrode meeting by body sealing construction in temperature shock, Frontiers in Vitality (2024). DOI: 10.1007/s11708-024-0955-3
Supplied by
Increased Training Press
Quotation:
Investigating results of various body sealing buildings on sturdiness of membrane electrode assemblies (2024, August 29)
retrieved 29 August 2024
from https://techxplore.com/information/2024-08-effects-durability-membrane-electrode.html
This doc is topic to copyright. Aside from any truthful dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is offered for data functions solely.