种燃料电池电极结构及其制备方法

• Format: Patent
• Language: Chinese
• Published: 04.12.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明公开了种燃料电池电极结构及其制备方法，该电极结构包含活性区，以及设置在活性区四周的边框区；活性区包含质子交换膜、催化层、多孔扩散层，催化层位于质子交换膜的两侧，催化层的两侧分别与多孔扩散层压合；边框区由质子交换膜延伸出催化层边缘的区域与夹置在延伸出的质子交换膜两侧的纤维增强复合材料组成；边框区厚度小于活性区。本发明还提供了该燃料电池电极结构的制备方法。本发明提供的燃料电池电极结构及其制备方法，不但能够解决电池的密封，并且使得电池的密封可靠性提高、额外重量降低。电池的寿命延长，操作简易，生产效率高。 The invention discloses a fuel cell electrode structure and a preparation method thereof. The electrode structure comprises an active zone and a frame zone arranged around the active zone, wherein the active zone comprises a proton exchange membrane, catalysis layers and porous diffusion layers; the catalysis layers are respectively positioned on two sides of the proton exchange membrane; two sides of the catalysis layers are respectively pressed with the porous diffusion layers; the frame zone comprises a zone where the proton exchange membrane extends out of the edges of the catalysis layers and a fiber-reinforced composite material is clamped on the two sides, extending out of the edges of the catalysis layers, of the proton exchange membrane; the frame zo