Blockage of fluid distribution in pem fuel cells

By installing stoppers and barriers at the cathode and anode end plates of the fuel cell stack, the fluid distribution is optimized, solving the problems of uneven cooling and water accumulation, improving power generation efficiency and reducing costs.

CN122423016APending Publication Date: 2026-07-17INTELLIGENT ENERGY LTD
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Patent Information

Application Number
CN202480081400.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-21
Filing Date
2024-12-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fuel cell stacks suffer from uneven cooling, water buildup, and fuel waste, which affect efficiency and reliability.

Method used

By setting stops and barriers at the cathode and anode end plates of the fuel cell stack, fluid inflow into the flow field is restricted, fluid volume is reduced, and fluid distribution is optimized by using separate inlet and outlet covers.

Benefits of technology

It improves the power generation efficiency of fuel cell stacks, reduces uneven cooling and water buildup, and lowers production costs and carbon footprint.

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Abstract

本文中公开了控制燃料电池电堆的端板处的流体移动的方法、装置和系统的各方面。公开了在阴极端板和阳极端板两者处的控制。可以在所述端板中的一个或两个处利用所述控制来控制燃料电池电堆中的温度、温度梯度和冰积聚。
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Citation Information

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    GB2319831A