The Secrets Behind Rimac Batteries | Mondays with Mate E04 

If you cannot wait for the giveaway announcement, you can order the mug in our e-store: estore.rimac-automobili.com/product/rimac-mug/

I love how Mate goes into all the technical details. Reminds me of Christian von koenigsegg. We want more!

Hi Mate, so nice of you to take questions and give answers ... we all knows your time is gold ;) Of course, as one of those who have been following your work for so many years, I have far too many questions ... About the built-in energy storage (let's call it battery if you wish), - What about a mixed / hybrid solution to take the best of all at any specific time? (Li-Ion / Super-capacitor / Solid-stats / Hydrogen / etc..) - Why build a vehicle around the battery, because the battery will be the first element to die (the motors and chasis could last millions of km) when (depending on the battery capacity and motor power and driving style ) battery will end in about one or two hundreds of thousands of km? I was fortunate enough to asked this question to the battery's chef Enginer at one of Bigger OEM (Producing BEVs) but got round eyes and no answer. And my last question: As a person who had the chance to realize the dream (with the beauty C1), would you support a dreamer to drive a dream to succeed? If I was not aiming for something a little different, I would apply to work with such an inspiring team. Thank you for all that you have done and are doing.

This was the best episode imo. Thank you so much, you guys are amazing!!

So next billionaire is gonna be the one with revolutionary battery technology.

Excellent information and perspective. I love the candid nature of these episodes; no marketing doublespeak. Keep up the great work 👊🏽

The technical discussion is what we are all here for! Please keep doing these!!!

Appreciate you’re doing this - really interesting! 🙏 Please keep going and keep us in the loop.

Hey Mate! have you considered entering a racing series or developing a hardcore track focus vehicle? Greetings from Spain!

What are the contributing factors to the performance of the C2 over C1 as percentages? (software 10%, battery pack density 25%, weight 15%, etc)

#Question: How your team contributed to building "Rimac Automobili" The connection between reality and dream this company shows is just awesome.. --Follower for more than 5 years

This video is worth it to watch it twice! Great work!

Thank you Mate, you are our big Croatian pride!

Loved the comments on new batteries technologies. I find hard to explain this to people but it was perfectly summarized here!

What were the biggest challenges for you going from concept cars to production? Love the merch 👍

Great video, I was wondering if your sister company Greyp is a sign you may move into high performance motorbikes from the e-moto style bike

We love the technical stuff Mate! My question is: What is involved to R&D "Drift mode"? Have a great week!

Clear and simply effective explanation...well done Mate!

One of the advantages of building up the knowledge of battery shape design is that eventually you will see these in VTOL craft and tractor semi trailers due to constraints in both.

Pozdrav Mate. 1. Da li se isplati praviti jeftinija elektricna auta, na prostoru balkana, za serijsku proizvodnju i uz to da se pokusava razviti masovna proizvodnja el.skutera, el.bicikala i slicno. 2. Kako si učio sve ovo i da li prvo treba prakticno raditi pa onda traziti teoretsko objašnjenje kako te volja tjera dublje u to ili jedno sa drugim uporedo? 3. Kako sve uspijevas napraviti u Hrvatskoj (el.motor, baterije i ostalo). Da li je nesto uzimate, jos uvijek od drugih? I sta je lakse kupiti nego li praviti svoje? Hvala i uzivajte!

Are you seeing any good R&D from Formula E concerning battery discharge rates, thermal management, and software/power management? Understanding the energy density and thermal issues faced by batteries what are your thoughts on how much potential efficiency gain remains within the integrated system excluding the batteries? Would you be open to discussing some of the magic math :-) that goes into managing discharge/recharge rates.

Thankyou sir u gave me sum confidence for me and thankyou for this new technology share with us thankyou

An excellent and informative video. Thank you Mate 👍🏻

I enjoy listening to someone like Mate who actually knows what he's talking about... technically speaking. Like him, I too have been a car guy since I was young, although my profession ended up in electronics engineering. I drive an i3 BEV, and hate it that it's still in warranty.... or I'd be modifying it for "just a little more power". (Tesla m3 rear drive would fit pretty nicely!)

how are you progressing with autonomous driving for c2?

Have you thought of any other major projects, such as speedboats or something else? Pozdrav iz Požege 🇭🇷🇭🇷

I brag to people all the time about the young Croatian guy and marvel over your technical expertise and flawless prepreg sculpting. Do you do your own pcb and smd stencils? Many thanks for this series.

Hi Mate, could you explain the autonomous abilities of the C2? Also thanks for sharing your time with everyone it's pretty exciting stuff.

Battery technology is definitely not something anyone should rush. Great to see that Rimac is being careful and sensible to not throw clickbait batteries into their vehicles. 🔋

I also find EV technology fascinating, especially in this time and age and I think that you guys are pushing the limits forward. But what about the tyre technology? Is it on par with EV technology? Is it ahead, or is struggling to catch up?

Mate do you think there is potential for supercapacitors in hypercars? Great video as always, your humble and cooperative attitude is a breath of fresh air in an industry dominated by old bureaucratic monopolists.

Great video as always. I have two questions, 1) it's possible to show the motors fabrication process? and 2) have you consider axial flux motors.

Thanks Mr, Rimac, you too.

Nice series! Thanks! I hope that you will do an episode on software. I remember some impressive numbers you mentioned when introducing the C Two in Geneva. I'm sure your car is as impressive in software as it is on looks and technology. To ask a question: can you provide more numbers? :-)

Well explained. I have a question. Is it possible to have 2 different battery packs in one vehicle? One larger with higher energy density for cruising and another one with higher power density for extreme acceleration. And while cruising, the high power density battery recharges slowly using the energy from the first battery.

Go ahead, the future is Croatian factory. Design, visualisations, graphics design & inventions of engeneering. Cheers mate!

Mate/Rimac...thanks for these awesome videos! What battery type are Lithium Carbon and how high is their internal resistance looking to be for applications...if they can get them to recharge without losses?

Question: May I have that amazing mug.

Hey Mate, Congratulations on recruiting Boosted Borris 😎 My question would be regarding charging plugs - what have You chosen to use in C2, and Your thoughts on standarts around?

Hey Mate, love the show! Can you talk a bit more about funding the start and the scaling of your company?

Hi and thanks for your amazing work. I will ask, as a student of automotive engineering in Italy, what advice would you give to create an amazing company like yours and what skills (personal and technical) are important to work in an innovative company like yours. Thank you and good luck

Hello Mate and the Rimac team, nice video series! Mate, does Rimac have a stance on sustainability and CO2 footprint, like when choosing materials, processes etc.?

Thank you for a superb video on the bleeding cutting edge of the Electric Super Car Part 2 💪👍 .. I have watched so many videos on this topic and none have been as candid as direct to the point as you. My question is: how much closer are you to completely redefining the wheels as we know them now into an integral part of the motor? (and or transmission) ?? Would you consider a taller or wider wheel to migrate the motor into it 🤔😎

Good video and lovely to see how Mate loves going into the technical side much more than the corporate side of his field. Awesome company and I hope to own one of your products at some point, directly or through partners. You guys seem to deserve it, or is it just Mischa's production value?

How does your motors and torque vectoring technology work? What type of sensor fusion and control loops do you use to make it work? What motor technology do you use? Permanent magnet AC motor, axial flux, or something else? How do you get torque feedback from the motors?

Hi Mate, How do you rate the importance of computer simulation during development and validation of vehicle dynamics, ADAS or powertain applications? How does Rimac benefit from an integrated simulation tool chain while facing cross domain functions and their calibrations? Keep up those M-Mondays! Great Series!

How does the vehicle dynamics differ from a conventional hypercar, also how complex is the tire dynamics for C2?

What goes into your graphic user interface (GUI)? It looks highly integrated with all the components of the car. I assume there is a lot of consideration to ergonomics and ease of use

Thanks for these videos, as an engineer myself I really enjoy these! I have a question about the drive lines of current electric cars: why do we see so much difference between the amount of kilometres per kWh between different brands?

Would be interesting to see how rimac preforms vs the tesla plaid powertrain.

I'm looking forward to watching the ETCR series, which I know Rimac was involved with development of the currently revealed cars from Hyundai and Cupra. Have you seen or heard much from other types of motorsport (endurance, rally, drift etc) looking to go electric?

@Mate -- Question: How do you design a suspension system to handle the weight and weight distribution of batteries and motors and how does the suspension on a car like the C -Two differ from an ICE powered hypercar?

What are your projections for cars in the future? Are they going to be 100% electric as it is the most efficient way? Or is there any room for ICE cars or other types like hydrogen or gas powered? Also in regards to heavy equipment vehicles and trucks etc. Would love to hear Your thoughts!

What would be the sound or noise of the C_Two if it was mandatory for electronic cars to have that for city driving?

Very interesting updates. It refreshing to see an OEM being so open and proud of their research. Would you be able to share any information on how Rimac are keeping your electronics cooled in the C-2? I imagine the inverters are producing significant amounts of heat energy which needs managing. How do you prevent thermal accumulation around these components?

Could we have a solution for the cars we have with the transformation from combustion to electric as well as your first bmw project?

Mate, što misliš o gorivim ćelijama za dopunu baterija tijekom i nakon vožnje. 10kWh sistem bi težio manje od 25kg. Koštao bi cca. $50.000 (trenutna cijena je 5$/Wh ali na nikakvom tržišnom udjelu). Ekstreman slučaj bi bilo smanjiti bateriju i ugraditi veliku gorivu ćeliju - možda se može dobiti domet fosilnog bolida? Gorivo (hydrogen, methanol,...). Učinkovitost pri konstantnom opterećenju je otprilike 50%, znači 30 litara spremnik bi udvostručio domet. Preostalih 50% je toplina što je iskoristivo za grijanje cestovnih EV zimi - ozbiljan nedostatak trenutne tehnologije u hladnim klimama. Glavno: PR benefit firme bi bio golem. :)

svaka cast, pozz iz ns

#question Hey Mate! When can we see another Drag Race with either the C One or C Two?

I love to know about you guys; i love petrol cars but i am really loking forward for the c two to be realise and kick some ass!!!!!!!!!!!! Best regards from Uruguay, a small cuntry is south america!!!

You are such an amazing company, every engineer would dream about. I wonder, if you are thinking of designing some kind of city car or mid range van, like a Berlingo version, which is very popular for families of at least two kids (like our)? It could be also a conversion from petrol/diesel to electric or combined power train? Continue good work, you are doing, you are fantastic and innovative firm!

#Question: Is it possible to make a wireless charger for the car, example in a personal or public garage?

Q: What is the performance trade off of having one motor per axle, and using a LSD VS one motor per wheel, and using software to manage the torque to each wheel? It seems the weight gained by adding an additional motor could be offset by the removal of the differential but I have no idea in terms of the performance.

1.) In the last video you mentioned that you increased RPM of your motors so can we know what is the peak RPM considering that last time it was 12 000 2.) Why don't you use Michelin sport cup 2 tires instead of Pirelli P 0's sice they have a great load index since Tesla is using them for the 2nd gen. Roadster and Bugatti on Chiron

To cool your coolant, are you using counter-current flow heat exchangers, and if not, why not?

Hello Mate! - Your thoughts were exactly the same I had, when I rebuilt my E-scooter, 1 year ago. It now has double the battery-capacity (from 4,3 kWh to 9,5 kWh) with about the same weight (change from big LiFePo to small LiPo-Cells), 1,5 times the end-speed (from 80km/h to 120km/h, I didnt really check out the end speed, I closed the "throttle" at 120) - and more than double the range (85 km to about 200 km in summer) ...

How hard was it and how long it took your team to make first 3D render of C TWO? Thank you!

Question: Do you have any plans to go into some kind of volume production? Get an automated assembly line running, push down-market, take advantage of economies of scale?

Mate, could you tell us something more about the powertrain (power electronics, type of electric motors, etc.) in C2? How difficult it was making of an efficient powertrain for electric motors with a total power of more than 1MW compacted in so small space?

What has Rimac done to improve the electric motors used in your cars and could you please talk about the type of motors you currently use, and the future of electric motors? Thanks from Australia!

I would be really interested in how far you are with autonomous driving for your cars. Do you develop this for your own cars? If yes - how well do you perform and if not - what is your personal opinion about autonomous driving?

Can you explain the differences between rimac two speed powertrain versus the tesla raven powertrain?

Rimac, What is your perception of the Tesla roadster 2.0 ? what are your thought about the performance vs the C2? To me it seem it willbe your direct competitor? Thanks Doc

Talk us through the process how you invented the technology that make the C1 so powerful and unique, was it trial and error, by design? How did you came up with it and how unique the process was ie why has a big car manufacturer not invented this earlier with their money and r&d departments? Second topic please explain the underlying principles of the technology and your patents. Thx

Do you use frequency converters? Which manufacturer?

Hey Mate why do you have a wing door and not the falcon door or any other? Thank you for the videos.

What makes the Rimac electrical motors so great?

Hi. What you think about aerodynamics. Ex: 4 individual wings.

How do you compare to Magna builder of ipace and Sony car, are you doing high end and they doing middle market?

Do you think energy density of electric field storage (supercapacitor) will ever be feasible?, also do you think future battery architecture will involve both traditional Intercalation storage for its energy density and electric field storage for power density ?

What are the challenges with developing Greyp and Rimac simultaneously? Also, I am sure a lot of things trickled from the C1 to the e-bikes but has anything ever happened the other way round? Has making Greyp bikes helped in the development of the C2?

Next question How sync of different Motor achieved such as rpm?

Hey Mate, how far away do you think we are from graphene batteries to become something feasible? Congrats, keep up with the inspiring work! PS: Is there anywhere I can find more info about you're future plans for the company in other contries?

Is Misha making these videos? if so nice work 👍

Hi Mate! Would you like to create a smaller and cheaper sport car? like for example the Porsche Cayman and the 911 and as a result switch to an economy of scale? Huge fan of Rimac team, you are amazing!

What are your thoughts on fuel cell hybrid electric vehicles?

Mate, your English accent got much better. Ekipa, you rock!!

Hey Mate, it would be nice to se an episode about software development. P.S: Is the e30 still being driven?

Are you looking at dry electrode to improve battery cycles improvement (i.e. 1000 cycles to 10000 cycles) ? So you get the million mile battery?

How do you work on vehicle aerodynamics to achieve that low a Cd = 0.28?

Greetings! Is the brand identity will continue in "future punk" ? or will you guys add some dramatic material such as ebony sheet, marble coating to the interior/exterior of the Rimac cars?

We stuck in hyper information traffic. I have spinal cord Injury and I read a lot about stem cell therapies but nothing really happened in the last 10 years and will not in the next 10.

How do you ensure flawless build quality given the price range of the cars? How will customers service their cars?

What kind of partnership you have with Mahindra Electric Battery for Battista?

#question: have you experimented with capacitors between inverter and battery? I imagine it can alleviate the stress the battery is exposed to during rapid accelerations and decelerations. In the long term, you may even be able to do without the physical brakes.

da li planirate napraviti formula-e tim i vozilo da se pridružite natjecanju

Have you been thinking about starting to produce passenger vehicles to be the competator to tesla model 3? And if so, could this came true?

Q . Since you have not been manufacturing cars for last several decades (like others) How do you overcome the difficulty of mass manufacturing and mechanical perfection?

Can u give me spec's of your bmw e30 m3 conversion kit???

Hey Mate, Knowing you came from making your own EV BMW, i wanted to ask you a question, as its been spoken in USA about the right to repair and lithium-ion batteries being "very" dangerous, what's your stance on it? Do you believe customers should be able to do anything with their cars? Knowing that, would you in example provide your customers with their own manuals for the car(i guess it might be different for Rimac company, as its pretty much a car with direct internet connection and issue tracking). Greetings from Poland.