Just a correction: the study does not say LFP batteries degrade faster than other chemistries, just that they degrade faster if you are constantly top charging them than otherwise.
One correction: if the parking is underground it's not a parking lot. It's a parking garage! Sorry, am a parking consultant so have to get that correct. :)
From what I understood from the LFP research article, the RELATIVE degradation of LFPs at high SOCs vs low SOCs was a higher ratio than for NCM batteries. It did not say that overall LFPs degrade faster than NCMs, or even that they degrade faster than NVMs at high SOCs. Overall, LFPs have a much longer lifespan than NCMs. But they are relatively more affected by keeping them at high SOCs.
The cause of the fire at the Rivian plant is unknown. It has not been determined to have been started by a battery, as far as any article I saw said. The press has a long time habit of implying that any fire involving an EV was started by the battery. Articles to this effect are spread far and wide. If the cause is something different (which is usually the case) there may be a few small retraction articles that don’t get much circulation. This gives the impression to people unacquainted with EVs that EVs are highly likely to catch on fire than ICEs whereas in reality the reverse is true.
For the record, Lucid claims an energy density of 15.67 kW/kg, for its motor. Still, GAC comes very close to Lucid's gravimetric energy density achievement and 30,000 rpm is quite incredible. I wonder what the power and torque curves for this high revving motor look like?
These are power density numbers, not energy density. The scientific term for these power to weight ratios is “specific power”. Nice to post the Lucid motor power to weight ratio for comparison, thanks!
@@12345682900 Q1: to what? A1: FREE LUNCH is what. Q2: What do you think Ford should charge? A2: from the popular Mastercard commercials of a few years ago they think "$0 Dollars". see in the consumer mind there's no price a Manufacturer can give, that someone will not IMMEDIATELY come behind and say it magically should be lower. welcome to the "Race To The Bottom" (which is ultimately a dead end and unsustainable).
The Investigating of a vehicle fire is to be taken seriously on its own. However, a fire, any fire, spreading across an entire garage is a failure in fire suppression or said oversight. But hey, redirection is an art form.
@@phillyphil1513 Yes compared to NMC, LFP is about 50% heavier, 1000x safer for fire risk, 30% cheaper. Surely both chemistries will be superseded before long, at least with liquid electrolytes.
Drivers massively supercharge LFP batteries to the top every day. I'm talking taxis in China. Cars with 300+thousand km see hardly any change in battery performance
I refuse to buy any ICE without 1200 mile range and with a price under $35k. I am tired of going to gas stations every few days. I want a car that only has to get gas once every couple months. Range anxiety is something I should not have to worry about. Ever.
Most people are not going to use fast chargers to charge their batteries. The car can be charged to 100% if your charge slowly. The car will slow the charge rate to do the least damage to its battery. It’s basically the same as it has always been. 80% in less than 30 minutes and very low trickle the rest. I personally charge mine on 110 every night. You should only use fast charging when necessary.
@@tnickknight if you were planning to do a great deal of traveling and EV probably wouldn’t be your best choice. I have been driving an EV since 2011 and have never once used a fast charger. The vehicles I drive are for business purposes and are plugged in every night and used every day with no issues. That’s my experience.
@@ricktotty2283 nice to be privileged. Most people don't own a place to charge, and have limited time. Nice to be privileged, and show why EVs are currently a foolish choose for most people who are not so lucky.
@@tnickknight luck and privilege have nothing to do with it. My wife and I started our life together 40 years ago sitting on the couch trying to decide weather we could buy a loaf of bread or a half gallon of milk, because we couldn’t have afforded both. We didn’t use credit. We didn’t buy things we couldn’t afford. We worked everyday and we paid our bills on time. We raised two sons and sent them to college. We made good choices by the grace of God. if you want to make a difference in your life ,get up and do something! Don’t get on the internet and insult people for what they have worked for. It’s about choices.
@@ricktotty2283 by the way, I grew up on welfare to a single mother. I served in Iraq got a PhD. No person has ever given me any financial assistance. I own many properties and travel the world. However, I still know I have been privileged. See maybe think about it , a bit harder
Why are people so keen in fast charging? People in Europe drive not even 40 km per day on mean average. And usually they drive to and from work. Let's say 20 km each. So they can charge the capacity lost after 20 km at work and at home. Slow charging is enough for that.
Q: How does GAC's motor compare to Lucid's in efficiency and Kw/mile? A: nobody knows. in fact since everybody forgets how they CAN'T READ OR WRITE MANDARIN IN THE FIRST PLACE nobody in the West knows if what they're claiming is even true to begin with. yeah those who are astute and paying attention know we've been watching this EXACT SAME DYNAMIC play out for the past 3-4 years in regards to so called "battery breakthroughs" out of China. (not unlike the capabilities of Russian Aviation back during the Cold War) until such time it's performance is independently verified, then it's the same technique of PROPAGANDA being used by knuckleheads like Elon and Donald right here in 'Murica. that's right, so the condition of a person being "naive AF" is a CATCH-22 in that the person is unable to recognize that they are "naive AF".
Regardless of how a modern car is charged the electronics in the car manage the battery so as not to overcharge it. The new motor has engineering improvements in it that can be applied to motors that run at lower speeds. Which will make them less expensive to build. Unless your building a super car the motor will need to be geared lower to make use of 30K RPM. That and the cost of the bearings might make it some what impractical.
15 дней назад
While interesting from a technical perspective this new motor design needs to be tested under real world conditions in different vehicle configurations in order to be called an improvement over current designs. Until that time the information provided in this video is mostly an advertisement that must be taken with a grain of salt.
Yes. Just as there are torque curves there are efficiency curves. Would be bad it the RPM where it was most used in our cars was not where it was efficient. So much to be evaluated.
Are the EV motor devs going high rpm to reduce current and I2C losses? If so, when do we learn about vacuum packaged units to eliminate windage loss? Wonder where the rpm efficiency vs gear reduction losses curve intersect?
Reliable vacuum seals will be an issue, as will lubricant degradation if bearings are under vacuum too. Perhaps magnetic seal tech will work, not sure how the field of the motor would affect them.
But fees in ICE vehicles can be extinguished when they occur. Fires in EVs can't be extinguished at all, and the vehicle has to be just left to burn itself out because the EV battery fire chemistry produces its own oxygen to constantly fuel the fire, as well as producing much deadlier combustion gases when burning then ICE cars do.
Yep. Provides copious subsidies and protective policies for years, gain a competitive advantage, stop said practices, then claim innocence and unfair trade practices when they face trade barriers.
Americans and Europeans provide subsidies to loser companies in order to solicit more bribes. Chinese provide subsidies to the best companies to destroy foreign competition. Clear who will rule the future.
15 дней назад
China's economy is a shambles right now, is this their "long game"?
China already slaps over 100% import tariffs on imported cars. So threatening another 25% is meaningless. What comes around goes around eventually, whether its COVID or automobile import tariffs.
Imagine making a skateboard and shipping it to the USA for final assembly. The only Tariff would be on the battery. This sounds like what Toyota might do with its BYD hybrid skateboard when BYD adds the Toyota engine in China and Toyota assembles the body in the USA. *POOF no 100% TARIFF.*
I don’t understand John’s commentary about how better power to weight ratio for the motors translates to noticeably higher EV range. If the motor weighs a few pounds less, allowing the vehicle mass to be a few pounds less. It will help range, but only a tiny bit.
I think it was more about the efficiency...but its funny how they try "and it adds 30 kilometers of range" - as if its the only factor involved...(they do it with batteries of course)...
re: "No mention of the Tesla Semi fire." correct, the Cognitive Dissonance here (and at other channels) is REAL, but no worries though we've covered it and all the numerous other disasters conspicuously not being reported on (but should be) over at other channels run by brave First Responders. unlike laymen and consumers what's important to recognize is Fire Fighters simply don't have the luxury of "pretending" THREATS and HAZARDS don't exist, no, instead they "face up" to DANGER DAILY so what you're dealing with then between the 2 groups is a whole different ETHOS and way of behaving. so like the sign says: immature teens and those "baby young to the world" NEED NOT APPLY. also ref: The Idiocracy circa 2006.
15 дней назад
The complete melt down is symbolic of the entire Tesla Semi project.
@@georgepelton5645 Well spotted George. I meant 1.8 million revolutions per hour. You do an 8 hour stint on a road trip and thats well over 14 million revs those bearings have endured. There are bearings that can potentially do that in aviation applications but you’re looking at an eye watering number of dollars per bearing.
As a Canadian, I am horrified at the prospect of 100% tariffs on Chinese EV's. We don't produce enough of a variety of products ourselves so consumers wanting an affordable EV are once again SOL... Thanks, you rent-seeking bastards!
I was saying a few years ago that this was the idea time for Canada to get into BEV manufacturing. Not an effort paying millions to the CEO but a grass roots thing. It did not happen.
Ahaw, world politics. Ain't cars fun? Disruption killed the horse drawn carriage. Some bad horses killed good people. Some batteries on new Electrics are exploding. Same issue, just repeated a little different over time....
With the reactive nature of water on exposed lithium, is mandating water fire suppression sprinklers close to charging stations a good idea? Smothering them seems to work best, but that method would be detrimental to any life in the vicinity.
There's a common misconception that lithium-ion batteries react violently with water, likely due to confusion with pure lithium metal. Lithium-ion batteries contain lithium in the form of lithium compounds, not pure lithium metal. These compounds are less reactive with water than pure lithium. Unless the cell is ruptured it will not react to water.
Basically the entire purpose of the EV "charging station" , or proper terminology of EVSE (Electric Vehicle Supply Equipment).... essentially a glorified circuit breaker and fault protection unit to bridge the gap between the grid and EV. If something goes wrong, the charging (current) stops.
China EV market has the unfair advantage of aggressive government subsidies. A level of subsidies that Americans aren't willing to stomach for U.S.manufacturers.
@@KTPurdyAlso, even if the Chinese subsidies were stopped today, the benefits are still there. Need to look historically, not only at the current state.
Not really, their economy is headed to the toilet, and they are in trouble. Lots of people are also not happy with their EVS , especially as the cost keep piling up
re: "China is coming strong, DANG." are they...? or are your simply now engaging in "Confirmation Bias" as an unfortunate by-product of something somebody else TOLD YOU (yet you are POWERLESS to verify for yourself)...? see Websters' entry for: "Propaganda". also ref: "The greatest DERANGEMENT of the mind is believing in something because one WISHES it to be so..." - Louis Pasteur, a Forefather of Modern Microbiology (1822-1895)
Theoretically, you can store an enormous amount of energy in a flywheel if it spins fast enough, far more than any battery or fuel. You could use a magnetic bearing to support it in a vacuum chamber. Practically, it would blow up past speeds that would give you very limited range. The math is left as an exercise to the student. Some people have tried, along with hybrids that use hydraulic accumulators. EV regeneration has made them all obsolete.
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Tesla Headline News: flOptimus static, non functional at China robotics show! 0% buy here, pay here financing continues in China! 500,000 trees turned into paper for German furnace!
@@nguyep4 Facts are that Adrian cut down 500,000 mature trees to build a furnace. Dishonesty is now admitting that all cars do not have all hardware required for fsd.
@@bobbbobb4663 all cars are equipped with the latest hardware at the time of manufactured. These hardwares could become obsolete over time. Which they are. Hardware development sees incremental upgrade over time, it doesn’t materilize out of thin air, it takes gen 1 to develop gen 2, then gen 3, etc. You are just sour, but Tesla eats the cost of the included hardware on owner that don't purchase or use subscription on FSD. No other company would do that. But then they don't have the vision to. Oh, wait Merc or BMW charges monthly for heated feature, like seats and steering wheel. Lol
