Lilium Battery Webinar, November 10th, 2023
New details about our revolutionary aircraft design and battery technology were presented by Lilium’s Co-Founder and Chief Engineer for Innovation, Daniel Wiegand.
The webinar, which includes newly released test data, explains the energy demands of the Lilium Jet, the existing high-performance battery technology that meets those demands, and how we and our partners are preparing to scale up the production of these battery cells.
*Disclaimer
No representations or warranties, express or implied, are given in, or in respect of, this presentation or the accompanying oral presentation. This presentation does not purport to be comprehensive or all-inclusive and is for informational purposes only. This presentation contains forward-looking statements that speak only as of November 10, 2023. You are cautioned not to put undue reliance on forward-looking statements, and Lilium N.V. assumes no obligation to, and does not intend to, update, or revise these forward-looking statements, whether because of new information, future events, or otherwise. Please refer to the Legal Disclaimer contained in this presentation for more information.
22 Comments
an air taxi for the rich 💸
This is all good, but when are you going to go into service?
This is going to make those battery trolls heads explode in frustration 🤣 Well done, Lilium
Very nice to finally get a lot of technical details on the jet and the batteries. Exciting developments! Keep up the good work.
Anyone knows if they are certifiying under "Basic" oder "Enhanced" ?
Well done lillium 😂 exiting times
Please explain. LG HG2 cell has energy density of 0,225kWh/kg with discharge rate 6,6C.
This means max. power density 0,225kWh/kg * 6,6C = 1,5kW/kg. It is way less than
needed 2,5kW/kg power just to hover without any power reserve. Your new cells must be
at least 4x better to support the claim of about 6kW/kg peak power or 2x better (3kW/kg) to enable some payload.
LG HG2 specification:
https://www.batteryspace.com/prod-specs/9989.specs.pdf
Excellent presentation! It has been a long haul for Lilium but the team, the discipline and the validated data is really shining. Thank you for sharing and for doing it in such a succinct and precise way. Daniel (and I mean this as a compliment) sounds like he could recall the data in his sleep😂🎉
Paper hope always sound good. Now make the darn thing fly carry people and payload for a few hundred miles. geez, the stock is in the toilet and you keep showing hypes without practical success.
Blessings. Go truckers and railway workers. Cleveland
CustomCells? is this the company that porsche uses and have invested in?
do you use strongly limited standard silicon loading like mixing silicon powder into the anode to prevent swelling, or are you using something more sophisticated like silicon nanowires connected on copper dots on the graphite like the method from sinanode? or do you use a kind of grown silicon "forest" like the one's from Amprius? the forest has enough space between the "trees" to take up lithium ions without swelling.
do you talk with HPB in Bonn or Storedot to produce samples together with CustomCells?
if i can remember right, HPB uses sulphur in the cathode but found a separator which allows small lithium ions to travel through but preventing polysulphides to travel through, which prevents destruction after about 70 charging cycles. thus getting in the area of 400Wh/kg or more
did you think about a combining of the concept of an axial magnetic flux motor – like the one's from Yasa or Magnax with an impeller in a way that the impeller and motor is one combined part?
as far as i know, the motors from Yasa are close to 98% in efficiency from 10 to 90% max rpm as i saw in a datasheet that i downloaded two years ago.
combining an impeller with an axial magnetic flux motor outside of the impeller could bring extreme weight savings.
and of course you might even could recuperate energy when landing if horizontal speed is very high.
maybe this could even be used for an emergency landing procedure.
stop blabla and look at the stock value…
So based on this, in theory it cold work 🙂
Chapters?
with such high power demand during hover, really wondering how they will manage energy reserve as not yet fully specified in new EASA ops rule for enhanced eVTOL, lot of scenarios and risks to figure out for eVTOL manufacturers and certif authorities…
case like balked landing will require sufficient energy to complete at least one missed approach and re-attempt landing, also including sufficient supplemental power for a short time to be defined, in the event of one or multiple inoperative engine due to failure, (even if they demonstrate it's a 10-9 event). This remain quite different from current AEO/OEI concept for chopper with 2 turbines and the 30min reserve which is well understood from a safety and certification std point. I'ld not be surprised that current EASA possible extension of MTOW of 3.1T for eVTOL is due to lack of confidence to have enough reserve…and so the 3175kg MTOW target may change.
Open propeller type eVTOLs are not the future. The only eVTOL company in the world with the most amazing technology is Lilium. I wonder when Elon Musk will participate in the eVTOL industry. the faster, the better. 😎
Lots of talk, lots of nice renderings but few facts.
IMHO bankruptcy before the end of 2014.
I hope I'm wrong.
Amazing, fantastic! I think maybe I love Germany and German engineering. I have never wanted to work for someone more than Lilium.
Great update! Good luck!
I wonder what performance advantage over Lilium other eVTOL aircraft like the Joby would have with those batteries and why they are not using them. Probably there is a reason…
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