I wish I could give this 10 thumbs up. Best comprehensive description of lithium-ion battery degradation that I've ever seen. I worked in the battery industry and I know batteries VERY well, and this video taught me a few things I didn't know. Well done!
I wonder if there are battery limiters available for EVs? For small devices like iPhones, battery limiters like Chargie can be used. I use it personally to limit my charging to 80% and possibly maximize my lithium-ion battery life. But I wonder if there is a similar device for full-blown Electric Vehicles.
74 cells in parallel: you know its impossible to distinguish between these cells whilst they are connected in parallel.........therefore there is NO cell level monitoring in any ev's battery pack. Sad but true.........when will this be solved? Look at it this way: 6S 74P pack.....thats 444 cells 74 cells in parallel are basically monitored as a single cell ( cannot distinguish between cells): so 74 out of 444 cells are monitored or 17% of the pack. The reality is less than 20% of a packs cells are being monitored is one way of looking at it. It very rarely this point is raised as a weakness in the electric vehicles, in fact its very rarely raised at all, most people continue to say that there is monitoring at an individual cell level.....which is not the case.
This explanation isn't even able to separate supercapacitors from 'magic', eb "ion" is about the most generic, information free word, that exists, IONS OF WHAT? What is even a simple framework for the dynamics, rates of change, limitations, and resulting energy density characteristics? A person can't reason at all about supercapacitors based on the 'explanation' in this video.
"If you have managed to reach the end of this video" lol. This video is brilliant. There are plenty of videos explaining what to do and what not to do when it comes to EV use and charging. Nothing comes close to this video in terms of explaining why.
Hi would you please able to share the reference research articles based on your talk on the root causes of battery degradation and preventive measure. thanks. I will share my email address or you may kindly put the reference here. thanks
When EV batteries need to be replaced. The old batteries have to be disassembled to be recycled .. that is going to create an industry because it takes technicians hours to carefully disassemble each battery..There will be millions of them
In 7:30, the reduction of porosity size of the SEI as it thickens, makes it possible for Li+ to not fully dissolved. Question here, if the porosity size is smaller, wouldn't the pre-solved Li+ (before entering anode) been more cleanly "stripped", hence more fully disolved, AFTER they penetrate the SEI layer? Completely opposite logic here, I wish I made it clear here and hopefully anyone can shed some light on it?
Can you explain the reasonS why a Tesla battery might catch on fire? I have seen on the internet different Tesla models catch on fire when: 1. just being parked. 2. parked and plugged in for charging. 3. driving down the road. 4. and after a crash. Let's assume a 2022 model 3, hits a dip and the bottom of the car hits the roadway, the car crashes by striking a 8 inch curb, the car hit a tree too, 3 minutes later it explodes into a ball of fire. Q1: can i hire you to help me develop theories of 'why' the 2170 design had some faults and why they catch on fire. Q2: does the 4680 battery fix any problems with the 2170 catching fire?
On the Tesla S 5.2kWh battery pack there is a pcb with a 10 pin plug socket. What is this socket for ? We have a Tesla battery which we want to use with a solar panel array, and maybe this socket has some significance?
Space Travel? Lol. Space is FAKE! Earth is FLAT and Motionless! Still beLIEve we went to the Moon? Only thing that went there was your imagination. Lol. Otherwise good video.
Mini (Winter) Solar Tip: You can gradually turn down a boiler and all other hungry electricity consumers with the "5000W dimmer". Ebay €7. I run 5 dimmers in parallel on an 850W inverter. Kettle 2.2KW at 150W runs 12 hours a day, so the water is always hot. The room is also nicely heated. 2.5KW washing machine runs in parallel with dimmed to 200...400W. Iron, dishwasher, oven, electric heater, coffee machine, all internal heating are throttled with me. Videos about it on my channel ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-eC2olbCBhh0.html The inverter stays cool, quiet and the MOSFETs remain intact because extreme current peaks no longer arrive at the inverter. Now every Mini PV Inverter is enough to sell large devices. So, with the dimmer, all internal heaters/devices can be converted into base load devices that stay almost permanently ON, drawing very little current directly from the PV. With a wattmeter / energy cost measuring device you can then measure this perfectly in order to set the dimmer optimally. A little hint (for everyone else): Energy cannot be saved. So if I want to boil my water, I always have to use the same amount of energy for one liter. Christian's method relies on a longer period of time with less power in order to be able to use the power provided by the PV as efficiently as possible - so consumption peaks are intercepted. In the end, the energy consumption should even be (slightly) higher due to the interposition of the dimmer, but it doesn't matter, since more efficient coverage by the PV system and therefore better use of the self-generated energy.............................🌞..............
What this video taught me is that either there will be decades of small changes that will fix and improve each individual piece of this problem, or that there needs to be a radical change in chemical and structural design of batteries in order to eliminate these issues. This was a very in depth discussion, and I'm glad to have seen just how difficult and complex this problem is, and I'm also glad you included ways that the average person could improve the longevity of their batteries with the explanation.
What a master lesson, and how well explained. Congrats and thank you! Question: you mention that Anode volume increases about 13% for NCM and NCA. With that, can we say that the Cathode volume decreases 13% as well?
No, the volume changes in the cathode are far less radical. I don't know if it's because it has more stable voids, or if there's just more cathode material per unit of lithium. It might be a combination of both. Silicon anodes can store far more lithium than graphite, but they expand and contract even more, which is a big challenge.
If a battery loses 50% of it's capacity, how is the efficiency of the charge affected? In other words, how does energy in vs energy out change as a lithium battery degrades?
It is astounding, and a revealing insight into the sad state of online information sharing, that only a few hundred people have "liked" this excellent video in the almost three years that it has been posted.
Disculpa pero estos es más que sinceros o claros digamos estando en nuestros planes abandonarme de esta manera es de técnicos o técnica despojo and or other membership Just loque nos da vida es amor simedas desconfianza es traicion
I really wished more people would watch this before championing for EVs. Also, most batteries might not have enough usable range after 10 years due to all these factors.
Yes, the usable life of an EV battery is much shorter than the expected life of a vehicle, so - unlike vehicles with engines - replacement of this major component should be expected once in the life of the vehicle. That's okay, if it considered in the cost and environmental consequences of the vehicle choice. One city (Edmonton, Canada) that recently started adding battery-electric buses to its fleet budgeted for complete battery replacement at 12 years, and was provided with a 12-year battery warranty from the bus manufacturer.
Most EVs come with a 10 year warranty on the battery. The average car ownership in the US is 6 years. Although there are plenty of people who keep cars for 10-20 years, this is not necessary common. EVs in their current state are perfectly fine for 85% of people. I have a 2012 Nissan Leaf with only 15% battery degradation and the Leaf doesn’t even have thermal management. There are plenty of Tesla Model 3s and Chevy Bolts who only experience 5% degradation after 100,000 miles. So it’s rare for a battery to degrade past the point of usable during ownership. People also confuse degradation with function. Most EV batteries are manufactured to function for 300-500k miles. So it’s also a rarity that a battery will ever just stop working during the ownership of one.
