| Titre : |
Ultrathin bipolar plates for fuel cells : Modified conductive compounds make it possible to manufacture bipolar plates from a bipolar film coil |
| Type de document : |
texte imprimé |
| Auteurs : |
Thorsten Hickmann, Auteur ; Thorsten Derieth, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 38-40 |
| Langues : |
Anglais (eng) |
| Catégories : |
Composites à fibres de graphite
Conducteurs organiques
Emboutissage
Films plastiques
Films plastiques -- Propriétés mécaniques
Graphite
Piles à combustible
Pliage (mécanique)
Polyéthylène
Polyfluorure de vinylidène
Polypropylène
Polysulfures de phénylène
Résistance électrique
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Bipolar plates are one of the key components of fuel cells and redox flow batteries. They consist of plastics compounds highly filled with electrically conductive materials. To save space, cut costs, and reduce weight, there is increasing demand for the production of thinner plates without compromising robustness and service life. This can be achieved using modified polymers. With a new technology, bipolar plate films based on these modified polymers can be processed as coils. |
| Note de contenu : |
- Challenge : Thin but durable
- Modified films achieve the required values
- Coil processing is possible
- Figure : The modified polymers enable films to be processed as coils
- Fig. 1 : By modifying the highly filled plastics, considerably thinner bipolar plate films can be produced than was previously the case
- Fig. 2 : Film thickness of the processed compounds and comparison with reference materials (filling degrees in brackets) : the thickness of the plates ranges between about 0.5 and 1 mm
- Fig. 3 : The tensile strength of the different films is lower than that of the reference materials. However, the reference materials are also considerably thicker (3 mm)
- Fig. 4 : The electrical resistance of the compounds (filling degrees in brackets) is higher than that of the reference materials. However, this is compensated for by the lower thickness of the films
- Fig. 5 : Stamped graphite compound film : the bipolar plate is produced by the stamping/ bending process |
| En ligne : |
https://drive.google.com/file/d/1n7ao1giAoz3sk2teppAwRxmgGVpFTlgv/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36168 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 5 (2021) . - p. 38-40
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