Method for manufacturing a high-pressure-resistant gas diffusion layer
By combining a gradient porous titanium sintered plate substrate layer and a titanium fiber layer, the problem of insufficient mechanical strength of the anode gas diffusion layer under high pressure is solved, achieving efficient gas transmission and rapid drainage, and improving the working efficiency and stability of the hydrogen electrochemical compressor.
CN122400570APending Publication Date: 2026-07-17CHINA ENERGY INVESTMENT CORP LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA ENERGY INVESTMENT CORP LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
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Figure CN122400570A_ABST
Abstract
本公开涉及一种耐高压气体扩散层的制备方法，包括以下步骤：配置含超细金属钛粉末的浆料；将浆料进行静电纺丝，制备不同纤维直径、厚度与孔隙率的钛纤维前驱体，高温烧结后得到钛纤维层的中间体；对第一钛纤维子层的中间体进行亲水处理，获得第一钛纤维子层；对第二钛纤维子层的中间体进行疏水处理，获得第二钛纤维子层；将第一钛纤维子层与第二钛纤维子层进行机械加工，再压制得到钛纤维层；将金属钛粉末与烧结助剂充分混合后置于模具中压制成预制体；预制体高温烧结后形成钛烧结板，将钛烧结板进行疏水处理，再按所需尺寸进行机械加工得到钛烧结板基底层；将钛纤维层与钛烧结板基底层进行表面处理后直接压制结合，得到耐高压气体扩散层。
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