214
Fully Charged in Just 6 Minutes – Groundbreaking Technique Could Revolutionize EV Charging
(scitechdaily.com)
this post was submitted on 15 Sep 2023
214 points (85.0% liked)
Technology
59179 readers
2145 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Imo the way things stand things are already good enough as they are.
we don't need to double battery capacity/distance or even charging speeds, it's a massive waste of resources that won't benefit the vast majority of people.
from quick google
so even if you have a 200km worst case scenario range on your EV, unless you are one of those people that are on the road a lot, it literally covers like 99% of your car usage.
Hyundai EVs charge with 350Kw, to 80% in like 15m which is perfectly fine for a longer roadtrip imo. I used to travel 200kms every two weeks and in most cases I took a rest half way through the 2 hour trip anyway to stretch.
if you are one of those guys that will come on and say you drive 500+kms every day and BEV is just unacceptable for you, well guess what, just get a fucking Hydrogen EV, pretty sure those can get up to 1000km ranges already which is more than my Diesel Hyundai.
Faster charging means a lower chance of all the chargers are in use at the service stations en-route. Currently if you're in need of a charge you'll have to wait for the others cars to get charged and then you still have the 20+ minute wait for your own car. That's going to put a lot of folks off owning an EV. Coupled with the fact the EV uptake is growing a lot faster than the charging infrastructure to support it. Faster charging has a lot of benefits.
except, the vast majority of your trips are from your home to some place and back, you charge at home and the range is more than enough to cover 90+% of your trips.
rather than focusing on super chargers (which we also need along high ways) we need to focus on smaller lvl 2 chargers at places where they make sense, apartment complexes, offices, to enable BEV use for people who don't own a home with their own garage.
you also completely ignore load balancing of the infrastructure, for one 350KW charger you can create 7 50KW chargers, that means 7 cars being charged while parked at places you spend lots of time at instead of 1 charger charging 1 car.
so like I said, fast chargers make sense next to main roads and highways during long trips and they don't make much sense at all in cities.
This assumes everyone can have a charger at home. A large portion of people can't. Apartments, associated spaces, on-road parking... a lot of people need public chargers.
we can build out charging infrastructure for apartments and offices
Average trip duration is not a great metric because they measure a trip as going from point A to point B. That's great, but then I do six trips a day in errands.
Total miles per day is the metric to use. On average, in America, it's 37 miles.
That is to say, EV cars would work for many people. But to reach the majority we need these advancements.
why? you literally say 37 miles, that means it's already good enough for the majority.
Because we're talking averages. People don't buy a car to go an average number of miles. People buy a car to cover the maximum number of miles that they would go.
Maybe I average 37 miles a day. But four of those trips are 8-hour drives to see my in-laws. I'm not doing that in my Nissan leaf.
I'm lucky enough to have two cars. My Nissan leaf which I use for everyday driving, and an ICE for the in-law trips and my spouse's driving. If there were a vehicle with extended range, like 300 mi, and a very quick charge, I would get rid of the ICE. Until then, 50% of my cars are not EV.
people go cars to go places 90%+ of those trips is below 200km
300mi with a quick charge? isn't Hyundai Ioniq right there?
I still don't understand why people need ultra distance in EVs. If I drove as much as often as the "I need a million mile range" crew I'd take a good, long look at my life and what was wrong with it.
I mean, it could be part of the job they do, whatever, but people vastly overestimate what they actually need from a vehicle.
If my commute distance was as long as some of these people claim, I'd do any number of things to change that.
there is stuff other than commute, for example a friend of mine works as a mechanic for agricultural machinery.
so there are days where he goes 400km one way to go do repairs on a piece of equipment.
Of course he is an exception to the rule just wanted to point out that there are jobs where you actually have to drive more than a BEVs range in a day.
Sure, it's the long tail, but everyone pretends they're in the tip of it.
I think there's something else behind it honestly. People have grown used to not planning and making long drives randomly and don't want to have to plan before making a Lewis and Clark length voyage now even if it's pivotal because of impending climate collapse.
I don't think the average American has moved very far from being aghast at Jimmy Carter's suggestion that they wear a sweater when heating prices were high.
We're spoiled babies and we don't intend to change, even if it means the end of all things.
Averages are useless. It does not matter if my car is fine most of the time, I'm not going to have a second car for when it is difficult or impossible.
Hydrogen is the other tech which makes quick refuelling possible, but there are not yet enough hydrogen refuelling stations to make them feasible for most drivers. And we don't yet know if leaks can be controlled enough to make hydrogen a net positive for consumer applications.
so what, you would want to triple your battery capacity because once a year you might need it?
why not just a rent car for that one occasion?
Where did once a year come from? I can't reach any of my family without stopping to charge most (currently affordable) EVs. We only bought a car because it was getting more expensive to rent them when needed (and train prices have doubled), we're not going to pay twice over.
so that's what 150+ 200+ km? (and that's being generously low given something like Hyundai Ioniq 5s range)
is it unfathomable for you to take a 15 minute break during a trip like that?
Where are you getting 15 minutes from? Why do you keep inventing scenarios to make your point?
bruh
Now you want everyone to drop £50k on a car?
Come on. Be serious.
you know BEV cars will get cheaper with time, right?
you also do know about used car market right?
be serious...
This guy: "You're expecting people to drop 50k on a car."
me: screaming in the land of 80k V12 F-150s driven by city commuters
(I seriously live in a dense neighborhood in the city in CA aka US liberal HQ and people here regularly buy high five to low six figure trucks they can't fit in their condo garage...)
Have you rented a car for a week? It's prohibitedly expensive for most people, especially if it needs to be big enough for the family and a week vacation. I'm considering getting an EV, but it's only because we'll have my wife's gas powered SUV to use for our longer trips, which are 1-4 times a year. That not an unusual need, and one that make exclusive EVs a no-go for a lot of people. Hybrids are an option of course.
it's not more expensive than owning a second car that's for fucking sure. I can rent an RV for less than just the typical maintaince cost of a second car
But are either of those options cheaper than getting an EV that doesn't require you to do either of those things? That's the decision.
It's pretty common for people to take their vehicle on road trips even if that's only 1-2 trips a year.
Road trips are the reason I wouldn't even be looking at a full EV. I'd be looking at plug-in hybrids. Enough electric for around town trips and gas for when I take it on road trips.
I am sorry but if you have an issue with taking a 15 minute break every 300 kms or so then maybe the issue lies with you, I mean you literally should take a break like that in those intervals anyway for your health, your focus and thus your safety.
plug-in hybrid is just gonna be less efficient again, it's cost is higher due to additional stuff in the car and fuel efficiency sucks once the batteries run out.
You have different priorities, and that's fine. You don't need to go around acting like your opinion is the only valid one though.
If nothing else, you say 15 minutes as if that's always how long it'll be. In an ideal world, yes. Have you not heard/read the multitude of people who have problems with chargers though? Waiting on others to finish, broken chargers, chargers not going their rated speed, etc.
15 minutes isn't bad. With all I've read I just think it's going to typically be longer than that and I don't want to add hour(s) to a long trip just because of charging.
For me, vehicle cost of a plug-in hybrid would be the biggest factor. I haven't really looked since I'm not in the market for one just yet. I can't imagine it's going to be worth fixing my 17 y/o Prius for much longer though. While they do need ICE and electric parts, they don't need nearly the battery capacity. It's not just slapping on an ICE to something like a Tesla where there would only be extra cost.