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These are essentially the inputs and outputs for hydrogen, oxygen (air), and the coolant. They are called manifolds. A fuel cell stack consists of several bipolar plates, and these are the main channels to supply each individual bipolar plate with the substances.

Thank you for your inquiry. You can find more information on this topic here: www.iws.fraunhofer.de/en/newsandmedia/press_releases/2022/press-release_2022-12_sandblasting.html Please do not hesitate to contact our scientist Dr. Patrick Herwig for further questions. You can find his contact details at the link above.

The Al-foil is precoated

Maybe Tesla is actually licensing and/or using R&D by Fraunhofer? There were reports, Saueressig Engineering, who Fraunhofer partnered up with, would be setting up cell production for Tesla.

@@hankmoody7521 Well, setting up cell production lines for Tesla now doing maybe every cell manufacturer in the world, but sure you could also be right. I do not have that deep info on this.

This is definitely something the person from @The Limiting Factor should look into.

According to a battery industry expert, everything Tesla announced on Battery Day were things that other battery manufacturers have been working on. The difference is that Tesla is more public about their efforts

@@areitu Could you share some sources?

Dear Tim, indeed most of the ceramic coatings are applied by plasma spraying since this is a much cheaper process. By using HVOF you can produce coatings with a much denser microstructure, higher hardness and smoother surface. This is due to the higher particle velocity in the spray process, which combined with lower process temperatures can also reduce phase transformations (which means you can maintain a higher amount of the original crystal phase in the powder). In the video the "dark coating" is a electrical conductive TiOx based coating for application as a heating coating system and by having a denser structure (less pores and cracks) you increase its performance. I hope this helps. Kind regards, IWS Thermal Spray Team

@@kylasmurff I would imagine that there would be much less un burnt powder. One thing about plasma it sure seems put quite of bit on everything in the booth and pulled through the collector.

We haven´t tested this material combination yet but it´s surely thinkable with our tool and we happily assist you on your tests.

Carbon is added to the mix with sulfur

@@yogamon What is the chemical formula?

@@abdallahsroor9039 what do you mean. Sulfur is sulfur and carbon is carbon. Carbon, like is found in conductive carbon blacks like graphene

@@yogamon cs or cs2 that's what I meant

@@abdallahsroor9039 Not a chemical compound. Just a mixture of C and S.

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