BYD unveils battery system that charges EVs in five minutes
Posted by AravRAndG@reddit | anime_titties | View on Reddit | 57 comments
Posted by AravRAndG@reddit | anime_titties | View on Reddit | 57 comments
shahtjor@reddit
I'm pretty certain no charger will support such drawdown for at least a decade where I live. Currently, most rural locations have grid limitations, meaning you can't even get a fast charge in filling stations.
ImportedCanadian@reddit
Could you not get a stationery battery to essentially trickle charge as fast as the grid allows and when the actual EV shows up the battery slams it all in the EV?
Stonek88@reddit
Correct, a capacitor would be ideal for this scenario
EmergencyComputer337@reddit
That would be one heck of huge capacitor
dosedatwer@reddit
Or, you know, more than one?
NWmba@reddit
Try licking it
deBluFlame@reddit
would also be extremely dangerous no?
SeeminglyUseless@reddit
Depends on the numbers involved.
But yeah, you don't want capacitors like that sticking out where some idiot can back up into it.
ScratchHacker69@reddit
I mean could you not just make the capacitor be underground? The big fuel tanks are all underground at gas stations after all
SeeminglyUseless@reddit
Unfortunately not. Gas tanks have the benefit of just being a container for a dangerous liquid.
Capacitors can burn out and need to be replaced. You can't really do that when they're buried in concrete.
Saint_EDGEBOI@reddit
If we can build stadiums with rolling covers to protect GRASS, I'm sure with the right investment it could be done. That's an extreme example but I'm sure I've seen bins in The Netherlands that are lifted from underground storage and emptied into a truck. Surely that would be on a similar scale to underground capacitor storage
SilverDiscount6751@reddit
We talking about plugs at home or on the side of a store.
Saint_EDGEBOI@reddit
Well in the home charging scenario, 90% of the time you won't be in a hurry to charge, so the infrastructure is suitable. In a scenario where you're in the middle of travelling and you need to stop at a charging station, you don't want to be waiting around for hours. That's the scenario that makes most sense to have these capacitors that allow faster charging.
binksee@reddit
It could definitely be done - you could have a standardized charging unit (maybe 4m3) that is lowered down as a unit underground. When repairs are needed just lift the whole unit up to service, or transport the whole unit to a repair site substituting a new one.
SeeminglyUseless@reddit
Which is a lot of effort for little to no gain.
It's much simpler to just put the equipment in a dedicated building or somesuch and run wires underground to the terminal. Being underground only makes it more complex for no reason.
tpneocow@reddit
So.. a substation?
ScaryShadowx@reddit
You can have substations underground no problems. There are plenty of places in highly developed cities that have this set up. The issue of putting electrical infrastructure underground isn't technical, it's cost.
EmergencyComputer337@reddit
Yeah if massive capacitors that happen to be safe could exist we would have been already using them
sluttytinkerbells@reddit
You say that like there isn't a way to put a door on the structure that holds them so that it can be enclosed and protected from physical damage but opened for maintenance.
ScratchHacker69@reddit
Fair point
shadesdude@reddit
At that point why not just do a battery swap?
Bullywug@reddit
Batteries have a lifespan, so the only realistic way to do battery swap is with a subscription model, like Gogoro uses for their electric scooters, which locks you in to using a single provider.
loozerr@reddit
No it isn't if we get regulation to standardize the batteries. But that would limit free markets' ability to milk people so it wouldn't happen in a western country.
Even if it would also help with the massive problem of energy storage.
temotodochi@reddit
How would you standardize battery degradation? The issue is not regulations, its psychology as nobody wants to end up with junk of others.
loozerr@reddit
You could choose to never own a battery. Buy a car which takes a standardized battery format for less, then rent it. However, it needs to be legislated carefully or outright be ran by the state.
The economy behind it makes sense, since maintaining a large volume of similar batteries would simplify for example swapping a bad battery cell out. Currently even something caused by a cheap part like welded contactors can mean that the service recommends a swap of the entire battery module.
temotodochi@reddit
There are no two identical batteries, what happens when the service station you used goes under and you are left with a worse battery than you had originally. It would only work as a subscription service in which you only own the car, not the battery and would still pay for each exchange to compensate for battery degradation.
ScaryShadowx@reddit
You then go swap it with another battery at another service station...
There are plenty of ways to do this. You have charge counters built in and your battery gets replaced with one that is of a similar capacity from the pool the station has available. A station having a pool of 10 batteries will mean you will usually have something of a similar capacity available. Or the cost of replacing degraded batteries get built into the charge price through legislation and it becomes a non-issue as people no longer care if their battery is degraded or not.
temotodochi@reddit
Yeah but in that case you don't own the battery. Then who does? Nobody wants to, because they are currently the worst depreciating item in a new car.
loozerr@reddit
It's as if you didn't even read the message.
temotodochi@reddit
You didn't understand the problem of ownership and responsibility. Who is responsible for fixing a bad battery pack? Who owns them if they are swapped out?
roiki11@reddit
Because swapping a battery of that size and capacity is neither fast nor cheap. And you'd need to manufacture more batteries than cars at that point.
It might make sense when the battery is the size of a brief case and can be popped out of the boot of the car by the owner. But not with current tech where the battery is usually part of the superstructure and very heavy.
We can dream of a time where we can just swap a canister size battery at a service station...
General-Woodpecker-@reddit
A batteryswap work in China when it is used by a lot of people but having a battery swap station in your garage is probably very expensive for no reason.
GoldenInfrared@reddit
Which is easier, plugging in a cord or changing a whole dang car battery
Laughing_Orange@reddit
Battery swaps are complicated, and require moving parts. A capacitor bank charging slow, and discharging fast is easy to make. This also has the benefit of the user owning the battery, with no chance of ending up with a battery that has been driven several times longer than the rest of the car.
ColdProfessional111@reddit
And it’ll recharge a car or two and then need to slowly charge itself. Freewire did this… and they’re gone.
Appeased_Seal@reddit
Tesla and other EV companies already have it implemented.
ColdProfessional111@reddit
They’re using a standalone BESS not an integrated unit, which is fine, but also expensive. Stuff like the ARC doesn’t do fast charging.
shahtjor@reddit
From an engineering perspective, there are a couple of things you can do, but there needs to be a political will and financing to back it up. That's the real stumbling block.
marklein@reddit
More like never IMHO. They're using a 1000v charging & battery system, which nobody else is using. Fat chance you'll ever see a charger outside of the factory that can deliver this.
800v may or may not be the new standard going forward (maybe just for larger cars) and even that will probably be rare.
Ictoan42@reddit
"what, you think there's gonna conveniently be a shop in every town that sells this 'gasoline' stuff?"
MarderFucher@reddit
Problem is you'd need high power lines everywhere which are already difficult to build due to costs and regulations. Just consider the amperage necessary to charge something this fast, your usualy city lines would melt.
I could see some dedicated spots where this is feasible, but widespread adoption would require rebuilding our energy infra when we have trouble maintaining it as it is.
Chagrinnish@reddit
You're underestimating the amount of power a transmission line carries before it's stepped down to the voltage that a typical business or residence would use. There's plenty of power there; it just needs a larger transformer.
Stubbs94@reddit
Well that, and the whole trade war against Chinese electric vehicles.
PTMorte@reddit
Do you guys have that in Ireland? Chinese EVs are everywhere now in Aus and there are like 12 new brands launching this year.
Molested-Cholo-5305@reddit
There is an EU wide tariff of up to 45% on Chinese EV's
PTMorte@reddit
Hmm. There are only 3 or something of the 27 EU member states that mass produce EVs right? That kind of protectionism led to us failing to secure a trade deal with the EU after about 7 years of negotiating in good faith.
Molested-Cholo-5305@reddit
Yes it's just France, Germany and Italy abusing their power to bolster their own industry by forcing all other europeans to buy their overpriced cars. The EU at its worst.
PTMorte@reddit
Pretty much the same attitude as India and the US bring to world trade.
If I were Irish or a Scot I would be seriously thinking about independence and then pursuing a Euro version of the Indonesian model.
(Historically bullied by colonial nations, but then the first ever country to manage to land in both the western free trade blocs CPTPP and RCEP, and also starting to trade with BRICS).
Of course, that leaves out how much they are subsidised by the poms and if they could even survive a disconnect.
nuttynutdude@reddit
There’s an ongoing dispute at the WTO. China says they are being unfairly targeted for tariffs, the counter argument is that China has a huge market share and has EV’s half the price of competitors due to subsidies. The GAFF does allow for tariffs in order to counteract subsidies or protect producer/citizen welfare
Ictoan42@reddit
Remember this is China, the current world record holder for the urban development speedrun. I don't doubt for a second that if enough people bought these cars, the chargers to support them would pop up soon enough
HugoCortell@reddit
Decade, or more.
The standards in Europe and the US have already been set. Between the legislative changes and how adoption of charger stations is being handled as poorly as humanly possible...
DaddaMongo@reddit
These technologies tend to trickle out from areas of mass population to more rural areas. Just as its not cost effective to supply fibre broadband to a rural area like where I live the same goes for other tech. If I went ev I could charge from home and even install three phase power for fast charging, not everyone can but it will come when there is profit to be made.
Gregnor@reddit
The article is light on details but it really depends on voltage. For those speeds at that much charge they might be close to powerline voltage. So no home chargers, but in any major area it shoudn't be a problem.
Doza13@reddit
I need to see the research on battery life. The SEI formation is drastically accelerated during fast charging and I can only imagine exponentially during this super all in jam of energy. Curious how they got around that.
CRSemantics@reddit
Trash article, the not secret is they get there by using a 1000volt battery architecture and a 1,000kW charger even then it's more math than reality. 5 mins of ideal math gets you there.
Still advancements but i do wonder how practical 1kV is, I mean it's DC and high voltage is 1.5kV but it's really pushing the potential for arcs going past 900VDC. I would wonder how everyone who barely moved to 800v is going to update their chargers for 1000v.
The drawdown of just going for 1megawatt charging per charger would be brutal, it's basically asking for a dedicated wind turbine for every charger. It's not a small amount of electricity to be hitting the grid with randomly.
empleadoEstatalBot@reddit
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Hi empleadoEstatalBot,
We've found 35 sources (so far) that are covering this story including:
Israel Hayom (Right): "China's BYD shocker: 300 miles of range, in 5 minutes"
Benzinga (Center): "BYD Reveals 5-Minute EV Battery Charging System: Bloomberg - BYD (OTC:BYDDY)"
Stuff (Leans Left): "BYD unveils battery system that charges an EV in five minutes"
Of all the sources reporting on this story, 39% are left-leaning, 33% are right-leaning, and 28% are in the center. Read the full coverage analysis and compare how 35+ sources from across the political spectrum are covering this story.
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