The company set another record after its plane hit airspeeds of 205 mph during a test flight earlier this year. At the beginning of December 2020, I joined Lilium as Chief Technology Officer. - ria Apr 6, 2011 at 18:36 We believe that the publication of our opinions about public companies that we research is in the public interest. In fact, Liliums mysterious battery cell supplier may be Zenlabs, although Lilium does not clarify the source of its battery technology. Bluetti B80: The perfect capacity booster for Bluetti power stations Lilium envisions directly connecting inner towns and cities across ranges of between 40 and 200km at launch (and up to 500km longer term) at speeds of up to 300km/h, while enabling significant time savings for individual passengers compared to alternatives. Given the context of VTOL, before I go any further we need to touch briefly on the attribute of disc loading. To prove the battery technology is available, Liliums white paper quotes Zenlabs Energy Inc a 34.8%-owned associated company [Pg 17] that reported battery cells in the lab with 315 Wh/kg energy densities while achieving 1,000 charge-discharge cycles. The aircraft features forward canards, main wings, and a distributed propulsion system providing vectored thrust. The case of Lilium raises questions on the quality of due diligence conducted by sponsor Qell Partners LLC prior to the merger. This effect is visualized in Figure 4. So this technology allows almost 4x the passenger throughput from the same infrastructure, which underlines the significant advantages in unit economics for ducted fan concepts. Although the assessment of this effect is heavily coupled to general drag housekeeping, due to the low disc exposure during cruise flight, boundary layer ingestion benefits offset blocking effects from the distributed fans. These fluctuations are mostly evident in the high frequency bandwidth of the audible spectrum. In Figure 1, we can see that a lift fan concept such as Lilium's incurs a 50% penalty in power consumption versus a tilt rotor concept during hover, for the same weight. Improvements in rechargeable batteries are enabling several electric urban air mobility (UAM) aircraft designs with up to 300 mi of range with payload equivalents of up to seven passengers. Its two arguments were: This silenced the critics but our research invalidates Liliums arguments: CTO Alastair McIntosh claims the Lilium Jet would hover for a very short time i.e., less than 60 seconds, of which takeoff would require 10-25 seconds and landing another 20 seconds. These results are presented in Table 9. Traditional thinking drives trade-offs which leads to meeting one objective and precludes meeting some of the others. Lilium says it's got it handled, however, thanks to multi-million dollar investments into a company called Ionblox, previously known as Zenlabs, for which Lilium has sewn up exclusive rights in the eVTOL sector. How do I find the maximum "discharge C rating" of a battery? 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Lilium's New Course: On Verge Of Going Public, It's - Forbes This means both firms must have sufficient test flights for certification credit to hit that target. In other words, the energy density of battery cells required by Lilium, designed to sustain repeated charges and discharges, are currently not available commercially. You can find more information about our newsletter and how we process your data in our Website Privacy Notice. Going forward, our sincere hope is to be more transparent (sensitive IP notwithstanding) about our technological progress and design thinking. And finally, it goes without saying that it needs to be an environmentally friendly and sustainable solution. LPO Announces Conditional Commitment for Loan to BlueOval SK to Further He added that the transition from hover to flight should not be too quick as the ride would be bumpy and uncomfortable for passengers. Lilium might have its bet right as well. Battery technology from earlier than 2014, which we used in our demonstrator, allowed for a minimum SOC of approximately 30-40% only, as the discharge capacity of the batteries did not provide sufficient power at lower levels of the SOC. The latest news from Lilium is that it has chosen a battery cell supplier, which happens to be a battery startup it invested in just last year. eVTOL competitor, Vertical Aerospace, said commercially available battery cells are currently ~270 Wh/kg at best. 22 March 2022. It's a special battery indeed that can maintain a high power output and pump out bulk juice even when it's running close to flat. The team has spent significant time optimising the fan blade and stator vane aerofoil design such that the noise emission is dropped even further. The WSJ showed that laboratory breakthroughs rarely manifest in the real world. The aircraft still needs to be capable of performing a safe vertical landing an operation that requires high power output for up to 45 seconds in Lilium's projections. Thirdly, duct and acoustic liners shield and dissipate tonal and broadband noise, and finally, ducted fans require less power at same disc load and thrust due to the significant performance advantages. Those are all costs which must be taken into consideration, not just pushed on down the road for someone else to deal with. The aerodynamics of the fan are designed to be most efficient during hover flight. Construction of Lilium's battery assembly facility is due to be completed in the first half of 2023, and battery line equipment is scheduled to be installed into the building shortly thereafter. The automaker cancelled its contract with Envia on the grounds it was predicated on a number of statements and representations made by Envia and Envias representatives that, in retrospect and in light of more recent statements by Envia, appear to have been inaccurate and misleading. The battery sent to GM had actually been purchased from a Japanese supplier and not produced internally. Now we are automating our production step by step towards large quantities., LiliumMeredith Bell+41 79 432 57 79press@lilium.com, Customcells Mike Eisermann+49482113392-21 mike.eisermann@customcells.de, Lilium (NASDAQ: LILM) is creating a sustainable and accessible mode of high-speed, regional transportation for people and goods. We believe the deal is more akin to a marketing agreement: Lilium offered cheap shares to Azul in exchange for the right to market an established company as a partner. Carrying that much more weight requires powerful batteries. Both these attributes can be addressed using small electric ducted fans arranged in an embedded, distributed propulsion system. It is visible that the required power is only around 40% of the hover power at approximately 25% of the cruise velocity. This press release contains certain forward-looking statements within the meaning of the federal securities laws, including, but not limited to, statements regarding Lilium N.V.s proposed business and business model, the markets and industry in which Lilium N.V. and its subsidiaries (collectively, the Lilium Group) operate or intend to operate, Liliums work with CUSTOMCELLS for the production of battery cells for the Lilium Jet, the anticipated timing of the commercialization and launch of the Lilium Groups business in phases and the expected results of the Lilium Groups business and business model, including when launched in phases. Electric VTOL Aircraft Like Joby & Archer Are Making A Wrong Bet On Pixel 8 Series Gets Tiny Battery Buff in Charging and Capacity You are cautioned not to put undue reliance on forward-looking statements, and the Lilium Group assumes no obligation to, and does not intend to, update or revise these forward-looking statements, whether as a result of new information, future events or otherwise. We may continue transacting in the securities of the company covered in this report, and we may buy, sell, cover or otherwise change the form or substance of our position in the issuer regardless of our initial views set out herein. We vetoed the idea and insisted there should be no connection between Lilium and the department. flown further and faster than anyone else, accused of misrepresenting Envias battery technology, Airlines lend brands for cheap eVTOL shares - The Air Current, Hyzon Unleashes a Load of Hot Air with its 3Q21 Results, Battery Claims: How Lilium ($LILM) Takes its Investors for a Ride. In other words, like a commercial airliner, to maximise time spent in the efficient cruise flight phase and to minimise takeoff and landing (i.e. Interesting stuff! The university wanted no association with Lilium. Azul received warrants to buy 8 million of Liliums class A shares at an exercise price of 0.12 per share. The canards and wings are positioned as far apart as practicable, to enable the aircraft to be stable in pitch. ("As an investor in Zenlabs since 2021, Lilium has . None of the orders, however, are firm as only a non-binding term sheet has been signed. Take-off and landing: during take-off we are only hovering approximately ~10-25 seconds and we also assume approximately ~20 seconds during a standard landing phase, whilst keeping approximately ~ 60 seconds as reserve. And we can leverage existing infrastructure to the full. In an open area, once they're 50 ft off the ground, they could start moving forward to be more efficient and not worry about building collisions. As one of the leading companies in the development and series production of special lithium-ion battery cells, Customcells is setting the pace for a comprehensive technological transformation. Batteries have been a source of controversy for Lilium. To deliver the desired range and top speed requires an aircraft that is highly efficient in cruise flight. That's why in step 4, the 7605 . Batteries for an eVTOL aircraft need to deliver two things. According to their source inside Google, the battery capacities will increase to the following in the Pixel 8 series: Pixel 8 Battery: 4,485mAh (24W charging) Pixel 8 Pro Battery: 4,950mAh (27W . Founded in 2015, Liliums headquarters and manufacturing facilities are in Munich, Germany, with teams based across Europe and the U.S. To learn more, visit lilium.com, Customcells brings premium battery cells to the road, water, and air. You represent to Iceberg that you have sufficient investment sophistication to critically assess the information, analysis and opinions in this report. Lilium has since changed its stance, as shown in an October 2021 prospectus, which states the cash will only progress part of the certification, production and commercialisation. Lilium remains on track to start production of its type-conforming aircraft later this year and plans for first manned flight of the type-conforming aircraft in the second half of 2024. The remaining 6.2 million will be issued after definitive agreements have been signed. Lilium announced in August last year a strategic alliance with Azul S.A. that could see the Brazilian airline buy 220 Jets for $1bn. 2023-03-28 | NDAQ:LILM | Press Release | Lilium NV - Stockhouse The pre-lithiation process, a key advantage for enabling greater energy and power density, inserts additional lithium to compensate for the loss of lithium during the first cycle. It uses 806Wh of energy and can charge a . The iPhone 14 family is already among the longest-lasting phones, with the iPhone 14 Pro Max . Cash burn is likely to accelerate as Lilium may increase its headcount by another 10%, from 900-1,000 at present. Against these criticisms, Lilium argued that battery consumption would be minimized as little time would be spent in hover (take off and landing). Ducted fans are well known for their noise shielding, asides from their aerodynamic efficiency advantages compared to open rotors, and the ducts themselves allow for the installation of acoustic liners. We call this Regional Air Mobility (RAM) - not to be confused with Urban Air Mobility (UAM) that typically seeks to connect points within a city over much shorter distances (<20km). We strive for accuracy and completeness to support our opinions, and we have a good faith belief in everything we write, however, all such information is presented as is, without warranty of any kind whether express or implied. Liliums greatest breakthrough is not accepting that traditional approach to trade-offs but rather getting to first principle understanding of the physics and then systematically innovating and optimising each subsystem in an integrated and coherent manner such that the resulting aircraft achieves all stated performance objectives. Investors have similar concerns. We believe this is a tacit admission of the Jets flaws and a direct contradiction of CTO McIntoshs claim that issues with disc load can be resolved by spending less time on takeoff and landing. Lilium engages ABB for MW aircraft charging system So despite 2x higher power consumption in hover than an equivalent open rotor concept, this increased power demand is compensated by optimising cruise flight performance, which only requires 1/10th of hover power and also makes up to more around 90-95% of the flight time, see also Figure 3b. This is an important step towards securing Lilium's future access to the high-performance battery cell technology that will . an all-electric vertical take-off and landing jet, offering leading capacity, low noise and high performance with zero operating emissions . A more detailed breakdown of the Lilium architecture, the aircrafts power demand during the different flight phases and the predicted range is presented in our recently published technology paper, which was recently developed with colleagues from TU Berlin, TU Stuttgart and The Whittle Laboratory at Cambridge University. This rumor first surfaced on Weibo and was spotted this week by ITHome. Lilium Jet - The First Electric VTOL (eVTOL) Jet - Lilium The battery specialist will "play a critical role in scaling up production of the 7-Lilium jet ahead of its planned launch in 2024", both announcements say. Actual events or results may differ materially from those contained in the projections or forward-looking statements. The Jet has 36 fan-like engines on its wing flaps. Further progress would be contingent on the completion of development, certification, and other performance milestones. In Figure 9 the decrease in power consumption is illustrated as a function of the flight velocity. The promise of energy-efficient battery-powered urban aircraft We expect Lilium to miss its certification timeline and lag advanced peers. iPhone 14: 3,279mAh. iPhone 15 and iPhone 15 Pro rumored to feature big boost in battery Lilium is aiming for regional travel over longer distances, rather than short intra-city hops. During this blog I showed you our thinking process linking low noise emissions with scalability and the key role ducted fans play. 3,200 mAh. The aviation-grade cells haven't undergone such brutal testing yet, but Ionblox says they've held up well over 700 cycles of 1C (60 minute) charge and discharge cycles. Above all, progress with aviation authorities is all that matters because you can get the money, build a fantastic aircraft, but if you dont have progress on certification, it doesnt matter. The landing gear is fixed and there are no hydraulics. Lilium's Battery Strategy: Performance at Scale. Lilium's Battery Strategy: Performance at Scale - Lilium Lithium hybrid organic battery Solution of lithium tetrachloroaluminate in thionyl chloride is the liquid cathode and electrolyte of some lithium batteries, e.g. iPhone 14 Plus: 4,325mAh. Both Joby and Lilium hope aviation authorities will certify their eVTOLs for commercial flight in 2023. [] March 14, the short seller Iceberg Research published adamning report on Lilium, calling the German developer of electric vertical take-off and landing aircraft the [], Your email address will not be published. To the best of our ability and belief, all information contained herein is accurate and reliable, and has been obtained from public sources we believe to be accurate and reliable, and who are not insiders or connected persons of the stock covered herein or who may otherwise owe any fiduciary duty or duty of confidentiality to the issuer. CEO Daniel Wiegand had no meaningful professional aerospace experience before starting Lilium in 2015. As a result, Lilium is targeting longer, inter-city jaunts as opposed to short cross-town hops where this inefficiency will be more of a disadvantage. He does not account for buffer time aviation regulators would require for bad weather conditions, hindrances such as drones and birds, and altitude needs i.e., vertiports will be surrounded by buildings of different heights. Against this backdrop and with a cash runway of 18 months, Lilium will have no choice but to forcibly dilute shareholders through additional fundraisings, while its commercialisation effort lags peers. If this is a gold rush, you can stake your claim and hope you get lucky and find a nugget, Engle said. The Development and Future of Lithium Ion Batteries - IOPscience Lilium quotes battery performance numbers of an associated company whose CEO was accused of misrepresentation by GM. The extraordinary batteries Lilium will use for its odd eVTOL approach, The 7-seat Lilium jet will act like a kind of electric air minibus for regional flights, The Zenlabs/Ionblox battery has a strong mix of high energy storage and high power output, Even at 30% state of charge, the Ionblox battery is putting out an impressive 3,000 W/kg over a sustained 30-second blast at a 12C rate, Lilium's energy-hungry small fan design makes vertical landings a particularly energy-intensive phase of flight, A 7-seat cabin makes this one of the largest air taxi designs headed for production, Where many eVTOL companies are concentrating on cross-town trips, Lilium is aiming for an average trip distance of 60 miles. Even if we ignore Kumars past, Zenlabs purported 315 Wh/kg is a nominal figure based solely on laboratory testing at the cell level. He told Aerokurier that the university offered Lilium help with their concept but the company refused. Lilium and Customcells ramp up silicon anode battery cell - GlobeNewswire Purchase a PDF of this article. Scalability whilst maintaining ground footprint and low noise. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. A lithium-ion capacitor is a hybrid electrochemical energy storage device which combines the intercalation mechanism of a lithium-ion battery anode with the double-layer mechanism of the cathode of an electric double-layer capacitor ().The combination of a negative battery-type LTO electrode and a positive capacitor type activated carbon (AC) resulted in an energy density of ca. The flap is rotated by an integrated servo unit, which can rotate the whole flap unit for controllability during hover and cruise flight. To set context, let me quickly explain the ambitions behind the service and its technical requirements. 2022-0824-assessliliumjetperfo-vg Download. We are entitled to our opinions and to the right to express such opinions in a public forum. Lilium's implausible battery requirements get a second look We've written before about Lilium's tiny-fan design and its effect on the aircraft's efficiency and likely use cases. Technology Blog - Lilium iPhone 15 Pro Max (rumored) 4,852 mAh. Joby flew over 150 miles on the longest eVTOL test flight to date in July 2021. For those not so familiar, disc load is the total aircraft weight to be lifted divided by the aggregate area of the rotors used during lift. Video Next generation of iPhones expected to feature significantly The eVTOL market is already saturated with over 200 companies including aerospace incumbents such as Airbus looking to commercialise their aircraft. The chargers will be designed to fully charge Lilium's eVTOL batteries in about 30 minutes and 80 per cent in 15 minutes. The total hover, transition and re-transition time consumes <15% of the total stored energy on a typical mission; or <20% if including reserves. Lilium Jet - Wikipedia How to calculate the lithium content in a battery Lilium does not consider security reserves in its calculations. The main problem lies with its power hungry design the ducted electric vectored thrust. But its batteries will also need to handle super-high discharge rates to handle those high-output VTOL flight phases, so they'll need to have a very impressive power density as well. For Lilium, this agreement represents an important step towards final assembly of the conforming aircraft due to begin later this year. We spoke to two experts an aerospace specialist and former Lilium employee to get a sense of the problems with Liliums aircraft. The Bluetti B80 offers flexible capacity for various needstwo units expand the AC60 from 403Wh to 2,015Wh. McIntosh himself wrote: A common, and reasonable, concern that is often raised is whether current battery technology can support Liliums architecture and its energy needs. Using the Lilium Jet, an all-electric vertical take-off and landing jet, offering leading capacity, low noise and high performance with zero operating emissions, Lilium is accelerating the decarbonization . Lithium-ion capacitor - Wikipedia Our consulting specialist underlined that design simplicity is essential to facilitate the certification process. Lilium says it has successfully developed, tested and refined the underlying technology for its eVTOL jets, DEVT, along with key control systems, aircraft and battery architecture. At the centre of this story is CEO Daniel Wiegand. It will probably depend on their take-off and landing sites, but I imagine that they can transition to forward flight relatively quickly once off the ground. This is largely due to its configuration of 36 ducted fans (recently reduced to 30) that devour power during takeoff and landing (hovering), and leaves little power for actual flight. Higher disc loads raise power requirements and lower efficiency, and in turn, means less batteries and range for actual flight. In this case, I understand and agree that opening the newsletter and clicking on links in the newsletter will also be visible to Lilium for analytical purposes, as described in the, Vertical take-off & landing for inner city accessibility, Low noise for high frequency inner city flight operations and customer acceptance, High seat capacity to achieve attractive unit economics and affordable pricing over time. Item 2: System architecture to maximise cruise flight efficiency. Our choices recognise both the limited time period spent in the power-hungry hover mode, and the need for speed in the dominant cruise phase. We also noted that Lilium initially told investors in August 2021 (see below) that the SPAC cash was enough to commercially launch our 7-seater Lilium Jet. The proprietary technology at the core of the Lilium Jet is Ducted Electric Vectored Thrust (DEVT) which we have refined through successive generations of aircraft demonstrators. measured until 80 percent capacity. Today, Customcells is a recognized premium partner of major automotive manufacturers and is playing a large role in driving the electrification of the aviation sector with its solutions to enable entirely new forms of mobility together with partners and customers.
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