• 专利标题:   Bipolar plate useful for proton exchange membrane electrolysis device used for electrolysis of water to produce hydrogen, comprises e.g. composite material that contains carbon filling particles, and cathode side and anode side.
  • 专利号:   WO2022241740-A1
  • 发明人:   WEI J, NIE X, HOFMANN L, KURZBECK S
  • 专利权人:   SCHAEFFLER TECHNOLOGIES AG CO KG
  • 国际专利分类:   C25B009/19
  • 专利详细信息:   WO2022241740-A1 24 Nov 2022 C25B-009/19 202200 Pages: 15 Chinese
  • 申请详细信息:   WO2022241740-A1 WOCN094997 20 May 2021
  • 优先权号:   WOCN094997

▎ 摘  要

NOVELTY - Bipolar plate (1) comprises at least one polymer material as base material of the composite material, and comprises cathode side (3) and anode side (4). The composite material contains carbon filling particles, and metal particles, metal carbide particles, metal nitride particles and/or conductive metal tin oxide particles. The carbon-based filling particles are carbon black, graphite, carbon graphene, carbon tube and carbon nano-tube. The content of carbon based filling particles in composite material is at least 70 vol.%. The bipolar plate is partially composed of thermoplastic polymer material. USE - The bipolar plate is useful for proton exchange membrane (PEM) electrolysis device used for electrolysis of water to produce hydrogen to form oxygen and hydrogen. ADVANTAGE - The bipolar plate can be manufactured with low cost and has higher corrosion resistance and the oxidation resistance of bipolar plate anode side, makes the PEM electrolysis device with stable efficiency and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for proton exchange membrane (PEM) electrolysis device (2). DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the PEM electrolysis device with a bipolar plate. 1Bipolar plate 2PEM electrolysis device 3Cathode side 4Anode side