一种用于质子交换膜燃料电池双极板的(V1-xWx)2AlC金属陶瓷材料及其制备方法

By preparing W-doped alum-alumina-carbon cermet material for proton exchange membrane fuel cell bipolar plates, the problems of high processing difficulty, high cost and poor corrosion resistance of existing materials have been solved, realizing the application of high-performance and low-cost bipolar plate materials.

CN116581317BActive Publication Date: 2026-07-17QINGDAO UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QINGDAO UNIV
Filing Date
2023-04-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing graphite, metal, and composite bipolar plates in proton exchange membrane fuel cells suffer from problems such as high processing difficulty, high cost, poor corrosion resistance, and insufficient electrical and thermal conductivity, which limit the performance and commercial application of fuel cells.

Method used

A single-phase modified alumina carbon material was prepared by hot pressing and sintering using W-doped alumina carbon cermet material. Combining the excellent properties of metal and ceramic, it was used for bipolar plates in proton exchange membrane fuel cells.

Benefits of technology

The material's electrical conductivity, thermal conductivity, corrosion resistance, and mechanical strength have been improved, processing costs have been reduced, and the volumetric power density and stability of the fuel cell stack have been enhanced to meet the requirements of large-scale production.

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Abstract

本发明属于燃料电池技术领域,具体涉及一种用于质子交换膜燃料电池双极板的金属陶瓷材料及其制备方法,该金属陶瓷材料为W掺杂改性的钒铝碳材料,改性钒铝碳的化学式为(V1‑xWx)2AlC。本发明制备的W掺杂改性钒铝碳材料同时具有金属和陶瓷的优良性能。该陶瓷材料在常温下具有一定的延展性,可以像金属与石墨一样进行机械加工,在常温下具有很好的导电性能和导热性能,较高的弹性模量。同时又具有陶瓷材料的特性,具有高的屈服强度和高熔点、高热稳定性和优异的抗腐蚀性。并且,钒铝碳材料在V位置固溶掺杂W元素,能够极大地提高钒铝碳块体的耐腐蚀性能,使之能在PFMFC的工作环境中能稳定工作。
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