The whiteboard's back! Inevitably these kind of topics bring up discussions about the environment, which is great! I'd really encourage you to watch my video on the subject if you haven't already: kzread.info/dash/bejne/aIac1suJlcm8qrA.html

@mattieuleveille

5 ай бұрын

Thanks for sharing!!

@grandinosour

5 ай бұрын

Man is NOT causing climate change and man CANNOT stop it!!! Using basic physics taught in high school, you will see how the demonic things man is doing "for the benefit of the climate" is actually harming the climate. You can toss around all the biased facts and figures all you want, but, reality is reality and not a pipe dream. Stop riding around on your purple, fart powered unicorn before you fall off and slam into reality so hard you will not know what hit you. Stop being a climate sheep....baaaa baaaa.

@GeekSHO

5 ай бұрын

There should be a whiteboard in every video. Don't you have a pocket sized one? Maybe one that fits like a credit card in your wallet?

@ugetridofit

5 ай бұрын

here's my comment. Where's the video of the LG tour.

@MrJustinOtis

5 ай бұрын

The best white board on all of KZread!

Joined for the Mechanical Engineering, stayed for the Electromechanical and Chemical Engineering. Thanks for being so loyal to the core meaning of this channel. I love your contents, Jason ❤️

@EngineeringExplained

5 ай бұрын

Love this, thanks and thanks for watching!

@jameshoffman552

5 ай бұрын

Jason is from the Sputnik era. They don’t make them like they used to.

Now you need to do a part Two, explaining the differences between NMC and LFP type Lithium-ion batteries..

@rouchar

3 ай бұрын

Plus, now we already have Solid state and Sodium-Ion in production 🙂

@zontetaji506

Ай бұрын

Explain why the Congo is being abused for this material

Great explanation! You should definitely do more electric vehicle engineering info. I'd really like to understand the process behind regenerative braking and how some of the other systems work in electric vehicles, and your explanations are some of the best.

@kevingarfield2094

5 ай бұрын

If you know how an electric motor works, then you would know how a generator works... Should've payed attention to the physics classes

@GrimReaping

5 ай бұрын

@@kevingarfield2094 You should have "paid" attention in class when they were teaching you how to spell. I understand how a motor and generator work. The core component of these systems is a generator, but engineers can come up with many ways to make these systems more efficient. We have engines that are mostly the same core idea as when they were first invented, but engineers didnt just stop there. I personally enjoy watching videos on things that I already know about, just to hear someone else's info, ideas, and opinions about it. Learning never stops, and no matter how much you think you know, our understanding of the way things work changes over time. Also, not everyone has had a proper formal education. If someone is ignorant or curious about specifics, they should have the opportunity to ask questions without being heckled.

@markotrieste

5 ай бұрын

For synchronous motors, the DC-AC converter knows the angle of the rotor, torque is proportional to the relative angle between rotor and rotating field. So to start braking, you must delay the field rotation w.r.t. the rotor, this is enough to force power back. I don't know, however, how does the same frequency converter switch between power directions.

@Tron-Jockey

5 ай бұрын

@@GrimReaping - Ignore the troll grim. You're correct. While it's true that an electric motor (polyphase AC motor in this instance) can be effectively used to generate power and a generator (alternator in this instance) can be made to operate as an electric motor they are typically optimized to function more efficiently as one or the other. For cross applications the differences in efficiency are typically small however so EV's will usually employ their electric motors as alternators for purposes of regen. Regen is simply using the vehicles kinetic energy to spin the motor which will act as an alternator when the brakes are applied. If you've ever tried spinning an alternator that's been removed from a car you may have noticed that it's very easy to spin when not connected to any sort of electrical load. However, connect an electrical load to it (like a 500W incandescent bulb) and it becomes much more difficult to spin. The load that a braking EV can place on the motor (when it's configured as an alternator), can be substantially more than that of a light bulb and can be quite effective at slowing a moving vehicle. Unlike with gasoline or diesel vehicles which use their friction brakes to convert kinetic energy into heat, an EV's regen during braking is generating electrical energy that's being dumped back into the battery. Keep in mind as well that EV's also have friction brakes that are used in conjunction with regen to slow the vehicle. Below a certain speed an EV doesn't have enough kinetic energy to allow significant braking via regen so the friction brakes are needed. They are also there as a backup. The seemingly "seamless" operation between the two systems is actually a bit more complicated and maybe Jason can make a video on this. Your question is actually a great question as it's not always easy for non "electricals" to understand. I believe Jason is an M.E. but his grasp of E.E. fundamentals make him great at teaching (which is unusual as while engineers are typically very erudite they are not always great at teaching. Jason has a gift 🙂) .

@geemy9675

5 ай бұрын

easy way to look at it is regen is same as reverse gear of the electric motor. on the motor side just send the exact opposite current to the 3 phases (compared to working as a motor). opposite current creates opposite magnetic field and opposite force/torque. but because the motor is still spinning in the same direction, the torque slows it down instead of speeding it up. once the motor spins backward, regen becomes reverse power and power becomes reverse Regen. on the battery side the current is also reversed => charging instead of discharging. if the battery is full or almost full, the battery doesn't accept charge current or only a very small one => reduced regen power.

Great video! This could be the start of a series going into things like "full" and "empty" voltages and how they effect pack longevity, temperature's effect on charge/discharge rates and regenerative breaking, the trends in price, mass and volume per Kwh and more.

Please do more of these electrical vehicle videos! I’m a senior in Electrical Engineering and am scared school isn’t teaching me enough for the real world. I’ve been watching your channel since freshman year of high school and wouldn’t be where I am without your channel.

@michaelschneider-

4 ай бұрын

+1.. Copy that..

Excellent overview! At 6:37 - battery charging slows down at the end because of more practical reasons too: (1) The battery's voltage rises near the end so the voltage gap that the charger has over the battery is smaller. Since current I=V/R then current at the end is naturally less the end since V becomes smaller and smaller as the battery charges. (2) The charger may naturally slow down charging because it does not want to over charge the battery past any of the battery cell's limits (4.2V for Lithium-ion). This is better than having the BMS forcibly disconnect the charging process -- see (3) below. (3) The BMS may actually cut off charging if any cell is past the cell's upper limit to avoid possible damage and fire. After a time of 0 charging current, the cells drop back down in voltage and the BMS will then re-connect the charger. This can happen over and over again making charging is slower at the end.

Battery chemistry is legitimately one of my most favorite areas of research!

@juzoli

5 ай бұрын

Then go and do it, you can definitely find jobs there in the future.

I absolutely love that you can explain all that with a simple whiteboard. Shows that fancy animations don't always make things easier to understand :)

I honestly searched for a EE video on Li-ion a few hours ago, finally we have it! :D

WOW! ... just **WOW**!! TY so very much for the basics thru the nitty-gritty! I've tried to follow some of this (as a fellow [now retired] engineer, techo geek and gear head), but your diagrams always solidify concepts. In this case the WHOLE concept of a separator was never ever explained to me, so a BIG "light bulb" moment! Your videos are amazing, and I love your channel, but this is probably my first deep comment and thank you 1e6 times! Also many TY's to LG, I will keep them in mind for future purchases!

Fantastic video as always! Concise and vividly illustrative! I have been excited for solid state batteries for years now ever since I first read an article years ago in college on it's research and development. Every so often when I hear news of a manufacturer expressing interest in researching the means to produce it at scale I get even more excited. Looking forward to working with the technology in the future!

In the charge cycle, electrons are driven into the cathode by the external power supply. These electrons combine with lithium ions to produce neutral lithium atoms which migrate back to the anode. Lithium is chosen due to its high redox electrochemical potential. The battery performs reversible reduction and oxidation chemical reactions. The electrochemical potential defines the voltage of one cell of the battery. With lithium, that can be as much as 4.2V.

@majist0

5 ай бұрын

Thank you, he was incredibly brief on the charging mechanism of action.

@RotoRCol

5 ай бұрын

what is the difference between a lipo used in RC hobby and a lithium battery used in real cars?

@armadillito

5 ай бұрын

@@RotoRCol it’s a different cathode chemistry and uses a polymer gel electrolyte rather than a liquid. They’re similar but hold a little less charge, can discharge faster (high ‘C rating’), and operate about 0.1 V higher due to the different chemistry.

@lucianbakerii7562

5 ай бұрын

​@@RotoRColThe LiFePO4 battery LiPO for short used in RC is also being produced for cars. The battery packs are just higher capacity, more durable, and stronger shielding. Are you referring to Lithium polymer or lithium iron phosphate? Lithium polymer is a construction technique. The chemistry of the battery defines the nominal voltage.

@RotoRCol

5 ай бұрын

@@lucianbakerii7562 lithium polymer

Wow, this is the best overview of li-ion battery I have seen. Lot of infos that are well structured, nice infograhics. That make it easy to understand. And kept short. Excellent work.

LG's HG2 was a _game changer_ in the drone world. For the first time, a Li-Ion had the discharge capacity to be considered for flight packs in fixed wing models, and I bought enough to support many car payments for their staff. I remember these cells being responsible for re-writing my checklists - cutoff voltages are quite different than Li-Po, and as such can be used safely at lower voltages than their more volatile counterparts. One issue I found, quite dramatically: in 3S configurations, you will discover which equipment requires over 10V to function: I'm looking at you video transmitters!

It would be interesting to see you go through the differences between traditional Lithium Ion batteries and Lithium Ion Phosphate batteries. My understanding is Lithium Ion Phosphate batteries are less energy dense but have a big advantage when it comes to being much less prone to catching on fire. Fire fighter friends of mine have told me charging of cheaply made Lithium Ion batteries such as those used in electric bicycles has resulted in a very significant growth to fire call outs and these fires can be quite difficult to put out.

@Neojhun

5 ай бұрын

LiFePO4 also have better cycle lifespan. Slightly more resistant to draining the battery deep.

@OtisFlint

5 ай бұрын

Thats correct. Less energy dense, slower charge/discharge, but more stable, less flammable, and longer life. NMC for performance and range, LFP for cost, safety, and longevity.

@berttroubleyn3475

5 ай бұрын

And because LFP batteries are less energy dense, they tend to be heavier. Best illustration: Tesla Model 3 Standard Range. In Model Year 2019 they used NMC cells, from 2020 onwards Tesla switched to LFP cells in this specific model. The kerb weight went up by a whopping 200 kg (though the battery capacity also grew from 53 to 60 kWh, to be fair).

@khuo0219

5 ай бұрын

You mean Lithium Iron Phosphate as the F stands for ferrous

@Beer_Dad1975

5 ай бұрын

@@berttroubleyn3475 Sounds like they would be a good solution for home solar power storage though - been thinking about this for my home, but worry about thermal runaway leading to a house fire - so if they have chemistry that is safer, that would be a great selling point for me.

Nice graphics! Batteries is very big and ever changing subject. Nice work Jason!

Always a pleasure Jason, thank you! I love my ICE platforms, but I just couldn't resist your explanation of this science. You had me at WHITEBOARD. :)

Great overview, very well explained! It's a very exciting space to work in

Great video! I've been doing research in solid-state batteries and this is by far the best video I've watched of how a Li-Ion battery works and is manufactured.

Well done Jason. That is by far the best Li battery explanation that l have seen. l look forward to the next installment . Maybe a video on the types of chemistries, density vs weight , ship batteries vs aircraft versions ? That type of thing. A lot of commentators generalize when talking about batteries when really it's such a diverse topic. Particularly as we are now moving from a fossil economy to a renewably powered electric economy of which energy storage is going to play a crucial role.

I have been working in the battery industry for 6+ years. This is a very good summary. Any more and the video would have been an hour long

Beautifully explained, Jason!

As an electrical engineer, i really appreciated the presentation here! I only wish my college professors were half as good as you :)

This is so fascinating! So cool to see this process. I’m super curious to see more about how these batteries are recycled

@coredumperror

5 ай бұрын

Jerry Rig Everything did a video about lithium ion battery recycling. Definitely worth checking out. They actually take a whole battery pack and *grind it up*, then melt the metals and extract them at the elements' various melting points. It's wild.

@Timo_tambien

5 ай бұрын

Newer companies have figured out strategic disassembly.

I feel like a lifecycle analysis on the individual cell and then on the battery industry would be a great video. Something to counter that 'we can't possibly get enough materials to do this ev transition' trope. Maybe explore the practicalities of the various mining and exploration processes to get lithium, nickel, and other feedstocks into cells/packs.

Not any content creator, but the best one! Thanks for another awesome video!

That was a masterful summary. Nice job!

*I've been sub'd for years and now gave myself an Honorable EE Degree! Thanks!*

Great stuff as always, Jason.

Great explanation I learned a lot from this video. Thank you.

Nice analogy with a parking lot! Makes it more clearer!

Great video! I love 15 minutes from Holland. It would have been so cool to meet you! ☺️

All this materials science is.....awesome! Please more of this

Jason, I love your videos! Please, keep it up! 😎

Great explanation and kudos to LG for allowing you film inside their facility

@tooltalk

3 ай бұрын

>> Great explanation and kudos to LG for allowing you film inside their facility

After watching this guy and his white board for +10 yrs I'm still glued to the screen 😊

I just want to find out how the battery works. You clearly demonstrate it and is understandable even if the listener only has a rudimentary knowledge of chemistry. Thank you.

Very interesting, thank you! I’d be curious to hear your explanation comparing the conventional lithium batteries to the newly developed blade batteries from BYD.

@ronaldlenz5745

4 ай бұрын

They are all lithium ion batteries. What is different is the "form factor:" cylindrical, prismatic, pouch, and blade. The other difference in lithium ion batteries is the cathode chemistry: various formulations of NMC (nickel, manganese, cobalt), versus LiFePO4 (lithium iron phosphate).

A most excellent presentation, thank you!

Would love a deep dive into all the chemistry and research towards better performance.

The analogies in this video were great.

Neat and simple explanation! Would be neat to see a video expanding on battery life and degradation over time/charge cycles.

@Simon-nx1sc

5 ай бұрын

+1

This was soooooooo informative. Stopped my dinner and took notes. Thank you.

Solid video, would love to see a breakdown of recycling these batteries, surely a big business in years to come.

At a slightly higher level yet still technical level... which goes back to the reason you outlined... and also probably for another reason being cell balancing. Lithium charging is done using Constant Current -> Constant Voltage cycle. Its easy to shove a ton of current into the battery when the voltage required to do so is still less than its max rated charge voltage. But once that max voltage is reached .. the charging current starts to drop ... thus your charge rate continually drops (gets slower) as the battery fills up =) In the case of lithium ... every single cell has to be tracked and kept at or below this max charge voltage while charging, and with thousands of cells and variances within, its easy for them to get unbalanced ... so the speed of charge nearer end of cycle also has to do w/ how well your pack cell balancing capabilities are and what current it can do it at... the more cells that reach their upper voltage, the more time is spent waiting around for the other cells to 'catch up'. Without some sort of active balancing, packs with really unbalanced cells can take forever to charge... in fact just due to imbalance, packs can become seemingly "unuseable" but have otherwise good cells in them... it would just require a lot of time to balance them. It would be interesting to know what the balancing capabilities / specs of a lot of the battery management systems used in these cars are. At minimum, I think its fair to say they are active balancers =) I'll also mention that, as per some of your other videos, current battery tech isnt high enough energy density to really do anything meaningful to "power the future". Its really just a gimmick right now. And as per the caption in this video.. LIION or any battery, really doesnt "power" anything... whatever charges them is the power source.... and that, is a much bigger topic of discussion and interest... imo

Impressive, 50K packs a year is nuts. That’s keeping up with startup production values of EV companies. That certainly does not include all the cells that LG sells to EV companies, either. I am very curious how cell balancing is done on the pouch style packs, I wish I could be there with you to poke and prod with questions, thanks so much for the video. Loved it

@ShainAndrews

5 ай бұрын

Please don't poke and prod the cells.

Fascinating stuff! So much of the modern world relies on battery tech, Li-On for now, Solid State and Gallium tech in the future! Super cool and critical tech for sure.

Great video and explanation. Can you shoot a video about solid state batteries and their utilisation in future EVs, pros and cons and feasibility. Thank you :)

this channel is evolving and we can learn more in Electrochemistry

Best explanation, very educational!

Next, a solid-state battery explanation, please. Thanks

@MrJustinOtis

5 ай бұрын

Matt Ferrell on the Undecided channel has one.

Love your videos. Would love to see your analysis of what causes these batteries to build up so much heat they can catch fire (especially when charging it seems?). This is more than idle curiosity since a home near me was completely destroyed when a car was charging in the garage and a fire ensued.

@carlfe4891

5 ай бұрын

You can find some examples in the defects of Chevy Bolt and LG home energy products (both with batteries manufactured by LG.) EV fires are less common than ICE fires and we've lived with that for decades. We've seemingly accepted that manufacturing defects and fires will happen in all areas of home energy usage. The more interesting is the question in how we prevent the chain reactions and reduce the furiosity of battery fires.

@ricomeitzner7584

5 ай бұрын

There are multiple possibilities, but the most common issue is dendrite growth. So when you charge a Li-Ion battery very fast, what can happen is that the Li is not properly able to intercalate into the graphite anode and instead gets deposited as a metal on top of the graphite. Unfortunately it doesn't simply grow as a uniform, flat metal layer, but instead likes for form very thin needle like structures called dendrites. If these dendrites grow long enough, it can happen that they will pierce the separator and short circuit to the cathode side. If this happens you have locally a very high current running all of a sudden. This high current, through a very thin wire so to say, results in a lot of heating. Enough heating actually to get the electrolyte to vaporize and getting ignited. And when this happens it can start to set the rest of your battery easily ablaze.

@coredumperror

5 ай бұрын

Two points to consider that Ricomeltzner didn't already cover: 1. Electric vehicle battery fires are about 60 times less common than gasoline vehicle fires. 2. Newer battery chemistries are immune to thermal runaway, and thus cannot set themselves on fire. LFP is one such chemistry, and the even newer sodium-Ion chemistries are similar. A large percentage of the EVs being build today use LFP batteries, which makes fires even less common than they were earlier this decade and late in the 2010s, when high-nickel chemistries were all we had in mass production.

@ricomeitzner7584

5 ай бұрын

@@coredumperror the previous commenter just wanted to know how batteries set themselves on fire, so I just mentioned one of the mechanisms that can happen. btw the one I explained can literally happen for any Li-Ion and Na-Ion battery technologies, when you have a liquid electrolyte. Likely only solid state batteries are really immune against it. What you can do to kinda prevent it, is to have a good battery management system, which prevents you from ever charging so quickly that the metal cannot intercalate into the anode. But that obviously comes with the price of always having inherently reduced charging speeds. This is also the main reason why you can have potentially higher charging speeds in solid state batteries, you do not have to worry about dendrite growth, that could set your battery ablaze. Co containing batteries have an additional mechanism, which can set them on fire, which is basically a decomposition mechanism of Co2O3 at high voltages, where it starts releasing reactive oxygen species, which will react exothermically with the electrolyte and boom there you have your runaway reaction going to set your battery on fire. Though all this can be prevented with a good battery management system, but as these are all external systems, they might fail.

@coredumperror

5 ай бұрын

@@ricomeitzner7584 LFP batteries are immune to *thermal runaway*, because they don't burn hot enough to set the nearby cells alight as well. They also don't explode when punctured like NMC batteries do.

Great video. I was researching optimal charging strategies so I am familiar with the concepts you explain. The new NMC structure is called monocrystalline NMC. I didn't know about how the crystals were structured though, that was news to me. I understood that monocrystalline simple meant that NMC particles made of multiple crystal lattices will deteriorate more than a monocrystalline structure. Perhaps this is completely different to what you are talking about though. Reading about how the cathode and anode are impacted by charging and discharging has made me have a different charging strategy to the simple "up to 80%" charge recommendation for NMC. First of all I don't charge above 75% if I can avoid it as it is above this level that deterioration due to high SOC really kicks off. Second of all it is better to go over the 75% for a trip than go below 30% charge. Third of all I charge up to the required amount above 50% just before my trip. When the car is parked up I keep the car at 50% SOC. I think it might be better to have it in a lower resting SOC but I think 50% is a reasonable compromise to allow me to top up with the required charge amount just before I drive. The overall theme is to charge and discharge as close to the 50% SOC mark for your given trip and don't hold a high SOC for long periods. Obviously the above strategy works when you know the percentage battery you need for a given trip. A more pragmatic strategy is needed for trips to unfamiliar destinations. I am now thinking of altering my strategy in cold weather. I have type 2 charging at home but when the ambient temperature is below 10 degrees celsius I am thinking of pre-heating the battery even for type 2 charging to prevent lithium plating on the anode. I will charge up to the 50% mark immediately upon arriving home as the battery is still warm. Overall though I am glad I live in a colder climate from an EV ownership perspective as nothing deteriorates a battery more than high temperatures. Could you do a video on battery deterioration? I think there is a real need for it. There are several videos on KZread but none of them get the views this topic deserves.

@kevingarfield2094

5 ай бұрын

Bruh you think Tesla isn't the best electric car ever made?!

@Menon9767

5 ай бұрын

Battery deterioration is fairly simple. The closer you get to 100%, the more energy is lost for charging and the more strain is put on the battery. Emptying your battery close to 0% isnt too good either. Staying around 50% will last you the longest, but modern EVs will last long with charging full as well, since they never get 100% full and 100% empty. The faster you charge, the faster it deteriorates. Use fast charging only when necessary, it causes unnecessary heat and is less efficient

@brendansheehan7714

5 ай бұрын

@@kevingarfield2094Tesla is great but the battery drain caused by Tesla's sentry mode and other advanced features is well documented. Therefore if it is sitting up for a while then probably needs some extra charge to tide it over.

@phillyphil1513

5 ай бұрын

re: "There are several videos on KZread but none of them get the views this topic deserves." well i don't know, Kim Java just did one with her neighbor (Dobson) who used his Tesla Standard Range for Ride Sharing and was fast charging 2x per day, and has basically burned out his battery and lost capacity from driving 120,000 miles around Atlanta in 1 year. he just had the battery replaced with a refurbished one by Tesla (not new) that cost him $9,000 dollars. that's the best "torture test" and info you're going to find on KZread.

@brendansheehan7714

5 ай бұрын

@@Menon9767 The thing is the battery buffer varies from model to model. I suspect in what I drive most of the buffer is on the low end with very little at the top end. I wish car manufacturers were more transparent about where the battery buffers are in each model.

Wow, this is actually a really good video and I would say it is genuenly everything one needs to know. Well done!

Love the parking lot explanation.... Next Solid state batteries?

You forgot to mention that Lithium price is lower 4x compared to this time last year and explain why didn't that affect the electric car prices? (cause you mentioned that Li is the most expensive part of the battery and the car).

Excellent video, specially the whiteboard.

please do one on solid state batteries with a company that has promise for mass production (assuming there are any: I know there are companies like Quantum Scape and Enovix(which isn't even solid state; they're silicon) but I don't know how promising they really are.) Thanks

@robertkelleyroth409

5 ай бұрын

You don’t want to know. Lots of hype, but no products.

Great video! Thank you Jason.

Thanks for the awesome video! A question, why is it difficult to recycle the batteries? If they degrade and lose performance over a decade, are the materials inside, if extracted and re-manufactured going to be ok?

Well done Jason! I'm a chemical engineer.

I heard the parking lot analogy a few days ago and thought it was an amazing analogy

If you could manage an interview with Jeff Dahn, that would be great.

Can you make a video explaining the engineering behind the Mitsubishi Outlander PHEV's onboard generator? Why is it more efficient for them to use gas to convert to electrical energy compared to driving the vehicle? Thanks, been following for years, and your videos are awesome!

the risk of fires come from very flammable electrolyte and the failure of the separator. the samsung galaxy note 7 fires was a defect in the separator (i think) that allowed the battery to overheat and lighting the electrolyte and the device. by reducing the cathode elements they can reduce the costs and some of the human rights problems related to mining.

I enjoy these videos even when I don't understand any of it.

The parking lot analogy is great.

I love your videos, you are a very good Yourtuber.

@EngineeringExplained

5 ай бұрын

Thanks!

@kevingarfield2094

5 ай бұрын

​@@EngineeringExplained🏳️‍🌈🏳️‍⚧️ happy pride sir

epic to see the whiteboard in action! I miss physics for gearheads inspired episodes...

I really would like to see a video explaining solid state batteries

Great video as always but I have to say it definitely isn’t everything I need to know about Li Ion batteries. Why do they get shorter and shorter life spans the more you charge them? Why does fast charging damage them? What is the best charge and discharge percentage to cycle between to get the most life out of them? Thanks 😊

Great video! Do you have a good explanation on why batteries have different performance in different climates, how cold or hot batteries degrade faster and what is changed in the batteries to accommodate different climates? In Scandinavia EV batteries need to be made to work in -30 celsius, but at that temperature they perform extremely bad and range is reduced by as much as 50% on some cars.

Your white board skills are amazing.

Awesome ❤

Where do you get all these informations from? trying to gather data for personal interests but i can't really find stuff which is new and free.

Your explanation on how a Li-Ion battery works is mostly right, only thing that is wrong is that the electron going to the cathode is getting reduced to elemental lithium again. Actually the lithium in the cathode stays an ion and the electron is reducing one of the transition metals part of the cathode oxide, e.g. in LFP Iron gets reduced from +3 to +2 upon discharging and lithium ion intercalation. If Li metal from the anode would turn to Li metal in the cathode, you would not get any voltage out of your battery, as there is zero chemical potential between lithium metal vs lithium metal ;)

Love this channel!

Very lucky guy congratulations on your tour.

Hey Jason, As always really good job 👍 Now, just a random tricky question ❓️ : What u would rather go for ? - a 400Drive Experience Bugatti at Kennedy Space Center's Space Landing Facility in a mighty Chiron Super Sport - or one lap in the mind boggling Gordon Murray T50 at Spa Circuit Let me now 😇

Great vid!

I like the zooming in and out of the white board

Great video, Thank You

Great video!

Jayson, thanks for the very interesting video. I have a question: how does a lithium-ion battery compair to a lithium iron phosphate (LiFePO4) battery??

@jonathanjohnson8376

5 ай бұрын

Hi, Lithium iron Phosphate is a type of Li-ion chemistry. Different chemistries have different properties, so some are more common than others. For example, I have been using a Lithium nickel cobalt aluminum chemistry, which has more energy density than LiFePO4, but is a little more dangerous.

Cheers from the Pacific West Coast of Canada.

Very grateful you covered this topic Jason! Great video every time! Did you ask any LG rep what happened with the thousands of bad batteries they sent to gm?

@JulyOverland

5 ай бұрын

Greg Less, technical director of the University of Michigan’s Battery Lab, “If they weren’t hard, everyone would be making them.” At least LG is manufacturing the majority of their batteries here in America providing jobs when the largest American EV factory (Tesla) is importing all of their batteries from China Nice try

@borshardsd

5 ай бұрын

@ShepherdOverland I asked a question, what try was nice?

@JulyOverland

5 ай бұрын

Trying to troll@@borshardsd

The fact that we are making videos on how batteries work is emblematic of the inevitable future that battery is the new engine.

Great video

Please do a video on Liquid Piston Rotary Engine and compare it to Mazdas. Thank you.

You should reach out to Redwood Materials and cover battery recycling ♻️

If you can, please speak 15% slower, when it gets to the more technical stuff it can be hard to follow along for those who certain topics are new for. You're very fast in your explanations which makes it harder to follow along. Even if its just an additional brief pause between sentences that would be much better. Of course you're videos are excellent, informative and very well explained. Thank you.

Great explanation. Question: The generation of electric power comes from the electrons separating from the lithium atom. Why do those electrons leave the lithium atom? I understand that in an electrolyte solution the electron and lithium plus ion are dissociated from each other. But what drives the electron outwards through the anode away from the lithium ion from which it came?

Wow that's great! How about showing how they recycle these things and dispose of the parts that can't be reused?

Hello , cool video ! I want to ask if you can make a video about bmw brake energy regeneration ! I know a little bit how it works but i dont understand how the alternator knows when to stop charging and when to charge.I also see 1 cable on the alternator but thats normally for the charging lamp on dashboard.I also dont understand ...is there a clutch ? i dont see one on the bmw f30 ! so maybe it is interesting for you and us a video like that ! sorry for my english i am from europe. And i am so crazy that i want to put a multimeter on the alternator and see if the voltage will come and go ....

Stellantis has blurbed about a Ram pickup with electric traction and what's basically a range extender 3.6l engine (I'm guessing they're leveraging one from their existing production lines somewhere). Can you do a show on the net efficiencies of such a configuration, where the ICE doesn't ever mechanically drive the wheels (ala Volt gen 2 I think) and just generates electricity to feed the electric traction motors ? In it can you factor in size of battery, miles per kwh of storage and then running at speed using the range extender to be either backfilling the battery for use or directly powering the electric traction ? They're trying to appeal to the towing world as well as the longer range wtihout so much battery (cost/weight) ? Enough variables ? It appears to me to be roughly a 1500, but possibly a 2500 equivalent . An idea for some white boarding show :)

Jason, i hope you are well. I have a question which the simplest explanation for still does not make sense to. I know Ford uses a bi-turbo 2.0l diesel, question is why isnt there a bi-turbo 2.0l petrol engine? Please help

You need to watch veritasium’s video on electricity. Those electrons don’t actually flow down the the wires…

@GregHassler

5 ай бұрын

Sort of, they're not "moving" in the sense that you normally think, the wire is full of electrons already, they just sort of bump they're way along. In a DC application they do move, though not quickly. Verutasiums video was a poor explanation, but had more to do with fields.

I have a question. Can battery cell be manufactured via lithography, just like transistors on processors? Wafers and such. Im thinking of if we have super precise miniature cells, then it will be less likely to clump. Of course, lithography is expensive.

Can you make video on... how Lithium-Ion + Lithilum-Polymer Hybrid Battery Cell are made. or any information on it.