วีดีโอ

Vielen Dank für Ihre Frage. Die Bestimmung des Wirkungsgrades des Gesamtsystems sowie die Unterstützung bei der Weiterentwicklung bis zum Produkt sind Gegenstand unserer aktuellen Forschung.

Thank you for your request. Professor Meulenberg said: "If you want to produce a membrane, it has to be a thin-film membrane because only a thin-film membrane has a high performance."

@@FraunhoferIKTS thankyou

Hallo. Das komplette Video finden Sie hier: th-cam.com/video/D9fjkX4rK6o/w-d-xo.html

@@FraunhoferIKTS danke 👍😎

Es freut uns, dass Ihnen unser Video gefällt. Zu Ihrer Frage: Die Dichte des Mineralgusses liegt bei ca. 2,5 g/cm³. Damit ist unser entwickelter Reaktionsharzbeton etwas dichter als klassische Faserverbunde aus CFK und GFK (zwischen 1,5-2 g/cm³). Diese haben aber auch einen Bindemittelgehalt. Unser Anliegen, welches es zukünftig zu untersuchen gilt, ist die Frage, ob eine dünne Beschichtung der besonders auf Abrasion belasteten Stellen die Standzeiten der Rotoren von Windkraftanlagen verbessern kann. Ganze Flügel für Windkraftanlagen lassen sich aus diesem Material nicht herstellen.

What kind of battery do you need to make. pouch cell, cylindrical ， prismatic, coin。。。

We typically coat graphite or silicon based materials on copper (10-20µm) and oxides (like NCM) or phosphates (like LiFePO4) on aluminum foil (15µm-20µm), respectively, as electrodes (anodes and cathodes) for lithium-ion batteries. For anodes the process is typically water based, for cathodes either water on NMP based. The maximum width of this coater is 300 mm. with a speed of approx. 0.5 - 1.0 m/sec depending on the wet film thickness. Keep in mind that this is a coater used for research & development, so it is designed for flexibility rather than for max. speed and throughput.

​@@FraunhoferIKTSsht talker!

Hello Greg, sorry it took a while to respond ;-) RTE or standby losses strongly depend on battery module and system design as well as on external temperatures and the utilization itself. So, there is no single number that I can give you. Since our technology runs at 270 °C a good thermal insulation is mandatory and can minimize the losses. This is in contrast to Li-Ion BESS. They usually need a chiller or air condition to guarantee the well feeling temperature for the cells. Otherwise, they lose performance and lifetime or even run into safety issues. This cooling definitely lowers the RTE! And this aspect, by the way, is verry often not mentioned. Published data are hard to find. Please check this page: ITP’s Battery Test Centre | ITP Renewables (www.itpau.com.au). The Australian colleagues had several batteries in real live test a sodium nickel chloride battery (from FIAMM) was under testing, too. Looking at these date sodium nickel chloride is on the same level as Li-Ion. Best regards, Matthias

@@FraunhoferIKTS Thanks for the reply Matthias, I'll do some more study.

Energy density is a property of a cell or battery and does not scale with the area of the electrode. Maybe you meant ‘… is required to deliver a cell with 100 Wh energy’? In this case, assuming an areal capacity of 3 mAh/cm² and a voltage of 3.7 V you have an ‘areal energy’ of 0.0111 Wh/cm². So, you would need roughly 9000 cm² each of anode and cathode to manufacture a 100 Wh energy cell (or in capacity 100 Wh/3.7V = 27 Ah). (rough estimations!)

As coating tool a Dr Blade or Slot die system is used without any gravure coating.

Hello Namdev, thank your for your question. Yes, in principle that´s possible. It depends on your cell set up and chemistry. The material is stable against sodium and sulfur but struggles with humidity. The conductivity at room temperature is in the range of 4 mS. For low cell resistance it is recommendable to make the BASE as thin as possible.

I want to visit too please can you write me

Electrode making is so pleasing

Thank you very much for your enquiry, but such data are internal know-how and will not be disclosed to external persons. Thank you for your understanding.

Hello João, thank you for your question! After sintering we reach gas tight electrolytes with a relative density of above 97 %.

Dear Mr. Campos, we are working on LATP as a Lithium conducting solid electrolytes. In the field of sodium-conducting solid electrolytes, we are interested in NaSICON compounds and in a ternary glass-ceramic system (Na2O-Y2O3-SiO2). The second system is mentioned in the TH-cam video. You can find some of our publications on this topic at Science Direct. With best regards

@@FraunhoferIKTS thank you, I will read the papers!

Die Frage ist, was du für ein Zeug nimmst? Du hast die TH-cam-Kanäle vom digitalen Chronisten, Tim Kellner, Tichys Einblick, MM News und Anti Spiegel abonniert. Wer außerdem Neverforgetniki abonniert und eine Flagge vom Königreich Sachsen im Profilbild hat, hat wahrscheinlich den Durchblick uns alle hier wirtschaftlich und wissenschaftlich zu beraten. 😂

@@herrwinkler4760 Kollege das nennt man Nationalstolz. Aber das ist für solche links rot Grünen Pfeifen wie Du ein Fremdwort.

Go on their site and contact them directly :)

Hello Bryce, thanks for your question. The chlorine from table salt goes to the metal, such as Ni, Fe, Cu, that is used in the cathode. The general equation is: 2Na+NiCl2→2NaCl+Ni

Lets see if we will meet again in some years