- AutorIn
- Ingolf Scharf TU Chemnitz, Institut für Werkstoffwissenschaft und Werkstofftechnik
- Markus MüllerTU Chemnitz, Institut für Werkstoffwissenschaft und Werkstofftechnik
- Dominik HöhlichTU Chemnitz, Institut für Werkstoffwissenschaft und Werkstofftechnik
- Thomas Mehner
- Ulrich Holländer
- Hans Jürgen Maier
- Thomas Lampke
- Titel
- Cost-efficient and reach-compliant surface treatment of bipolar plates
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa2-362494
- Konferenz
- FC³ Fuel Cell Conference. Chemnitz, 26./27.11.2019
- Quellenangabe
- FC³ - 1st Fuel Cell Conference Chemnitz 2019 - Saubere Antriebe. Effizient Produziert.
- Abstract (EN)
- In fuel cells, stacks of several hundred bipolar plates are combined in membrane electrode assemblies, in which the electrochemical reactions take place. As a result, it must be possible to produce the bipolar plates cost-efficiently. In addition, the corrosion resistance in the surrounding medium and the electrical conductivity have to be sufficiently high. As stainless steels show passivation over time, more expensive materials, like graphite or noble-metal coatings, are used. This paper describes an alternative coating, which can fulfil the above-mentioned requirements. Using electroplating, Cr coatings with thicknesses > 20 µm can be deposited at low costs and REACH compliant. Subsequently, the Cr layers are gas nitrided resulting in a dense Cr-N coating with electrical and corrosion properties exceeding the ones of common stainless steels. Using this new approach, well-performing fuel cells could be produced cost-efficiently.
- Freie Schlagwörter (DE)
- Übergangswiderstand
- Freie Schlagwörter (EN)
- bipolar plate, fuel cell, chromium, chromium nitride, contact resistance, electroplating, electrodeposition, nitriding
- Klassifikation (DDC)
- 600
- 620
- Normschlagwörter (GND)
- Bipolarplatte, Brennstoffzelle, Chrom, Chromnitrid, Kontaktwiderstand
- Herausgeber (Institution)
- Technische Universität Chemnitz
- Version / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:ch1-qucosa2-362494
- Veröffentlichungsdatum Qucosa
- 25.11.2019
- Dokumenttyp
- Konferenzbeitrag
- Sprache des Dokumentes
- Englisch