Porsche's idea for a six-stroke internal combustion engine

55 pointsposted 3 hours ago
by tempestn

90 Comments

teo_zero

an hour ago

But isn't the chamber full of exhaust at the beginning of the second power stroke? What will burn?

OJFord

38 minutes ago

It says the goal is efficiency, so I assume the point is that if the first does say 80% combustion, then another cycle eeks out another 80% of 80% or whatever. (Brb, have an 8 stroke engine to patent.)

ttwwmm

3 hours ago

Seems pretty dumb considering it still consumes fossil fuels. Why waste R&D on a dead end?

Szpadel

an hour ago

I think many of people here live in US and assume that it everywhere things look similar. in my European country electric infrastructure is not ready for electric cars and with current energy prices this makes no financial sense.

I own plug in hybrid and I live in apartment meaning I have no possibility to charge at home. near me (about 10 min of walking there is public single phase allow charger with 2 plugs machine maxing 3.5kW total (for both)) and if I'm lucky I manage to find free slot one a week, but usually that's one every two weeks. This is only "free" charger in reasonable distance from me, and free means that I can use it when I have ticket for public transportation with I need to have anyways.

there are some normal chargers, but they cost 2x for slow charging or 3x for fast charging than energy prices here + you have to pay per minute of taking parking spot.

in summary when I calculated how much does it cost $/km it is very similar to gasoline but it's much trickier to recharge.

I would love to own fully electric but without also owning house with solar this makes no sense right now.

JumpCrisscross

2 hours ago

> Why waste R&D on a dead end?

"There were an estimated 20 million horses in March 1915 in the United States" [1]. In 2023? Almost 7 million.

Internal combustion engines will be around for a long time, in part because they're beautiful.

[1] https://en.wikipedia.org/wiki/Horses_in_the_United_States#St...

[2] https://www.ppfas.com/pdf-docs/b-finance/cigar-butt.pdf

AlecSchueler

33 minutes ago

Were horses ever actively restricted by governments around the world or did we move away from them because better solutions were available?

lostlogin

38 minutes ago

Something that surprised me: the German army in WW2 was mainly horse drawn.

According to the below link, 80% of its transport was via horse.

https://www.zdnet.com/article/the-wwii-german-army-was-80-ho...

082349872349872

12 minutes ago

I believe this has a lot to do with the failure of the Maginot line: it had been constructed to slow down an army with horse-drawn logistics (after all, germany had no oil) but the germans did their end run with mechanised units (having researched synfuels in the meantime).

From 1940 to 1943, one can readily explain Axis strategy as an insatiable quest for more oil: no barrels, no Blitz.

Tade0

38 minutes ago

In the meantime the human population quadrupled, so the actual demand for horses is not half, but closer to 1/8 of what it was.

They'll go the way of horses in the sense that you'll be hardly seeing any in cities.

GavinMcG

25 minutes ago

You seem to be using “actual” in a way that suggests proportion to population is a key part of the definition. But although a company that served a market for 20 million might well have failed as the market shrank, it also had the opportunity to survive and continue serving an actual market with an actual demand for 7 million actual horses.

lb1lf

3 hours ago

Presumably as Porsche is not about efficient transportation; it is about emotion, driving as an experience, making a statement, etc.

Chances are there will be - or, at least, Porsche appears to bet there will be - a sufficient number of well-heeled enthusiasts who prefer the sound, smell and vibration of an ICE to the quiet performance of an electric motor.

I am really curious to see how this pans out in a generation or two - I suspect nostalgia plays a significant role in the 'performance cars should have ICEs' mindset, so what happens when the generation who grew up on EVs enter middle age and have the disposable income for a performance car?

As for the rest of us, if, say, 1 in 1000 cars in a couple of decades' time burns fossil fuels, it is hardly going to be a nuisance. I'd be more worried (If I owned an ICE-powered vehicle) about the infrastructure needed to get the fossil fuels I needed in the tank.

(Glancing anxiously over at my 1949 S1 Land Rover (1.6l I4 petrol) and 1981 Land Cruiser 42 (3.4l I4 diesel) - neither of which are performance cars by any stretch of the imagination! The 3B engine in the Land Cruiser will merrily chug along on just about anything vaguely combustible you pour in the tank, though.)

sheepdestroyer

2 hours ago

"it is about emotion, driving as an experience, making a statement, etc"

These kind of motivations need to be heavily vilified and taxed.

lb1lf

2 hours ago

Oh, they will be, no worries - doubly so as the fuel they need goes from being a necessary evil of civilization to a niche product for enthusiasts.

There's going to be along tail of ICE vehicles out there, though - say, I have a tractor on my farm (which is not being worked commercially, it is basically an expensive and time-consuming hobby seeing as my wife's family has tilled this plot of land since the dark ages. Literally.)

Anyway, even if diesel prices soar to $25/l (That's $100/gal for the metrically challenged), with our current usage, it will still be cheaper to buy diesel at that cost than to invest in a new, EV tractor. Hence I can't see that tractor going anywhere anytime soon.

wiseowise

2 hours ago

They’re already heavily taxed. But why vilified?

aziaziazi

8 minutes ago

A tax can help common infrastructures (building road) or limit something (cigarettes price)

Some people think the ICE car tax(es) already in place are not sufficient compared to the damage they cause. To reduce usage, both tax and public opinion (shaming, vilifying) works great.

It’s regrettable the efforts only focus on a car motors, the most dangerous property of a car is it’s weight (and emissions depends on that weight).

Tade0

34 minutes ago

There's a huge overlap between people who seek out such experiences and those who drive recklessly and modify their exhausts.

inglor_cz

2 hours ago

Your proposals are a bit contradictory. If you heavily tax something, it becomes a money source for the government; does it then make sense to try to extinguish said activity through artificial social aversion? Also, whatever is vilified by the government, but stays legal or at least feasible, will act as a magnet for the counterculture.

If you really hate something, just propose an outright ban. It would work for Porsches; no one can secretly grow a Porsche in his backyard.

cbeach

2 hours ago

> performance cars should have ICEs

After driving a fast Tesla, stepping into an ICE performance car feels like going back to a steam engine. A very slow, unresponsive steam engine.

When avid petrolheads try a fast EV and feel the instant torque it will be an epiphany for them. Only the most stubborn will stick with fossil cars.

nottorp

5 minutes ago

I suppose you don't know how to drive a manual either :)

avereveard

8 minutes ago

Thats a very common misconception. Being very fast doesnt necessarily make a car very fun.

apelapan

18 minutes ago

Eh, no?

One car being objectively faster than another does not mean that it is more fun.

And even if one vehicle is more fun in some total measure, it will not be fun in all the same ways as all other fun vehicles.

There are plenty of people who alternate between something like a modern Mercedes V8 and a classic Mini. There is no question of which one is faster, but it might be the slow one that gives the most joy of sporty driving

lb1lf

an hour ago

-True, but I believe (at least this holds true for me) - the tinkerability, if you like, of ICEs is much higher. You can work on them at home, install all sorts of modifications and upgrades - real or perceived - to a much larger extent than you (currently) can on your EV.

It all depends on what makes cars interesting to you, of course - but a lot of the car enthusiast clientele would merrily start tinkering with their pride and joy even if all is well, just because they can.

wiseowise

2 hours ago

Instant torque is cool, but goddamn it is soulless.

082349872349872

an hour ago

If you want instant torque with soul, try a horse.

(the catch: this instant is often one which you weren't expecting, and if you are lucky it will mostly have been applied along the craniocaudal axis)

teo_zero

2 hours ago

I'm sure they said the same when they saw the first photographs and compared them with paintings.

stonogo

an hour ago

you might note that people still paint.

lowdownbutter

40 minutes ago

Well that also needs to be heavily vilified and taxed.

avereveard

a few seconds ago

Ah yes we should all live in a gray bloc working in a gray factory until the end of time

Vilifying a d taxing any luxury not only is a ludicrous position, it will only make inequality worse. Its not like the 0.1% will renoujce to it, and taxes don't matter to them.

prds_lost

an hour ago

Which ICE performance car? I went from an SRT8 back in 2012 to a Tesla Model 3 performance + mods and now most recently went back to ICE via an AMG GT63. I can confidently say that the GT63 is leagues more fun than the Tesla ever was. Sure the Tesla was quick off the line, but outside of that it felt sterile and the ride was quite uninspired.

uluyol

an hour ago

ICEs have a lot of advantages that make them much better suited than EVs to certain tasks (extreme climates and remote locations, for example). They will likely stick around for niche use cases (at least) for quite a long time.

As for why Porsche is spending money on ICE engines...well, no one really buys a Porsche because it's a "practical car", do they?

TacticalCoder

an hour ago

> As for why Porsche is spending money on ICE engines...well, no one really buys a Porsche because it's a "practical car", do they?

I don't know. I find my daily very practical: a Porsche Panamera MY2013, now nearing 125 000 miles and 12 y/o. Still under extended manufacturer warranty. I have it since more than five years now (bought it used). Next car is another used Panamera (probably a 2020 or something). Very sweet, comfy, luxurious ride and yet if you push the pedal to the metal, way funnier to drive than, say, a Mercedes Class S.

andrewxdiamond

3 hours ago

I think it’s likely we have passed the peak of R/D spend on ICE, but the momentum of research that has gone into it for decades is going to continue to produce innovations for a while longer.

Merad

2 hours ago

ICE aren't going to go away any time soon. Battery tech has a long way to go before it can compete with the energy density of liquid dinosaurs, and if it did there are plenty of cases where ICE has major advantages over battery power. But even if say 90% of the vehicles on earth could be replaced with electric, should we really stop innovating on that last 10%?

night862

2 hours ago

I definitely think this is a valid question.

ICE engines and every type of motor have a Power Curve. Many things go into the power curve including the construction, configuration, fuel and general type of motor. The power curve graphs engine power output as it relates to engine rotational speed. Every one of these different motors and transmissions out there including electric as well, have differing characteristic curves which effect the handling of the vehicle to great effect. This affects their possible applications.

Controlling the power and efficiency curves of motors is the entire story of the very well known "VTECH" Variable Valve Timing technologies, super and turbo chargers or other forced air intake, and even the way that Tesla electric motors arrange the magnets in their electric vehicle motors.

Inventing a new way to operate an ICE is good for many things. This patent looks cumbersome, and a bit complex. In my mind the long-term future of ICE for vehicles is in more specialized use cases as fossil fuels reach the long tail. Certain highly reliable, or certain types of safety prohibiting voltage or battery chemistry, types of standby vehicles, certain rugged vehicles, industrial equipment, small motors, these might be better off being petro-like. It might be better to make corn-gasoline than to stash a huge battery onto your lawnmower all year in this case.

But please do not discount: They are enjoyable.

Even during the end-of-days, we can process something like biofuels into "gasoline replacements". We can use waste vegetable oil to create biodiesel today. Small volumes are pretty easy and although we desperately must reduce fossil fuels to near zero (I dont need to have a blast gunning my Porche in bumper-to-bumper traffic, for example...) I don't see a reason why people can't still buy a motorcycle, even if we are living under sci-fi-like domed cities.

All else, people would simply make them themselves in their own garages. For Fun.

tehlike

3 hours ago

Because it will continue to sell - it's a porsche.

Something i wouldn't do, but i understand.

000ooo000

2 hours ago

Not all ICEs must consume fossil fuels. The tech could bring alternative fuels closer to viability.

whiteboardr

2 hours ago

Honestly, i can’t get my head around how many folks actually think that it is an either or situation.

There’s zero chance we will be able to electrify all personal mobility let alone the elephants in the room being construction equipment, planes of all sorts and above all marine vessels that ship our goods globally.

EVs are well suited for a couple use cases but far from a monolithic solution.

It is beyond me how a group this large actually thinks that ICEs are facing “death”.

Once line is done going up in that field, i sincerely hope the discussion around this will mature and become less histerical.

frankgrimesjr

2 hours ago

For sports cars, internal combustion engines still provide a weight advantage over battery packs.

left-struck

2 hours ago

Could be any of several reasons. As a backup plan, for niche uses, or just uses that you are not considering such as small aircraft. Could be a stop gap as well, it seems like there was a quick uptake in EVs but they aren’t replacing petrol engines just yet, even in cars.

yardstick

2 hours ago

> Why waste R&D on a dead end?

Because they’ll still make money from it.

Because they are selling a sports car. They’re not targeting the same audience as your typical car manufacturer.

freetanga

2 hours ago

Because large manufacturers are seeing EVs are struggling to take off.

Might as well spread your bets. They are also working heavily on efuel, that works with ICE engines, does not pollute much, but currently would cost 2x at the pump. If they could shave that cost in half we could keep most ICEs (plus an add on catalyst). Distribution networks could be kept. Batteries and their chemicals would not be needed.

So if either pays off, it’s a fortune.

freetanga

2 hours ago

Just to clarify: I had to do an analysis on car markets across 10 countries in EU, Mexico and Latin America recently.

If 100% of new vehicles were electric today, it would take 15 to 20 years to renew the whole fleet in those countries. But today the share of new EVs were between 0 to 5%.

While there is a subyacent network effect (when 30% of gas stations close, it will be so hard to refuel that adoption will spike, which in turn will kill more gas stations), it still seems way off. The people I interviewed at car makers seemed to see EV as a new segment more than a new paradigm.

Your mileage might vary.

abenga

3 hours ago

Why is it a dead end? I agree that it should be, but it seems the entire world is walking back the commitment to a full transition to EVs.

thebruce87m

2 hours ago

https://www.edie.net/one-in-seven-new-cars-worldwide-is-now-...

> One in seven new car sales worldwide is now electric

> Year-to-date figures show that nearly 10.6 million EVs have been sold globally as of July 2024, marking a 16.3% increase compared to the same period last year.

What constitutes “walking back”?

abenga

3 minutes ago

> What constitutes “walking back”?

Legally+Economically. After seeing how badly their cars were doing against Chinese EVs, it seems the EV-only mandates in the EU and US are on shaky ground; only heavy tariffs on imported cars seem to be giving local producers a chance. I do not think they will figure it out by the 2030-ish targets, and bet that European and American companies will be allowed to sell combustion engine cars after that.

> marking a 16.3% increase compared to the same period last year

This is buoyed a lot by growth in China (which is not nothing, I guess), but growth in Europe and the Americas is slowing.

freetanga

an hour ago

I need to check that source but I guess is heavily per country. In Southern Europe is under 5%, south from the US border between 0 to 1 % (source: per country Car Makers Association report)

Globally, if I recall, you need 20 years to replace the whole global fleet (so around 5% replacement rate). Let’s assume this global number is fixed (installed base is growing, as more vehicles are being created that destroyed, actually)

1/7 is 15%. 15% of 5% is 0,75%. So this means that every year 0,75% of global installed base is replaced by EVs. So 130y for full replacement?

Yes, the 1/7 weight will increase. But so will expand base. Even if suddenly today every car made now on the planet is EV only, iCE will still be around for 20-30 years.

freetanga

an hour ago

Not to pile on, but the linked article you presented backs their data on New AutoMotive’s Global Electric Vehicle Tracker, a UK based group fostering EV adoption.

NAGEVT site only shows data for UK, is unclear which data sources they used, and whether they added PHEV (still ICEs) into the mix.

Don’t mean to come obnoxious, I just spent a few weeks researching the topic for 10 countries and my data differs a lot from theirs.

yardstick

2 hours ago

Not the op but in NZ there has been a significant drop in demand due to removal of subsidies and introduction of a distance-based tax (road user charge) for EVs.

https://www.1news.co.nz/2024/09/15/car-importers-stuck-with-...

“In 2023 January through August, one in four new light passenger vehicles sold were EVs. Fast forward to 2024 and EVs make up just one in 11 new light passenger vehicles sold”

thebruce87m

an hour ago

The original claim was for the “entire world” which is why I specifically used global stats.

yardstick

an hour ago

Maybe not every single country, sure.

In the EU sales are sluggish.

https://www.forbes.com/sites/neilwinton/2024/05/19/europes-w...

“Current sales of EVs in Europe have stalled at just over 2 million a year, as early adopters and corporate purchasing peaked out. Schmidt Automotive Research said during the opening third of 2024 Western Europe EV market share stalled at 14.4% compared with the same period last year, according to its provisional data.”

thebruce87m

15 minutes ago

It’s fascinating the language used around EV sales. You have used “sluggish” where others might have used “stable”. In the past we had articles saying sales were “slowing” when in fact they were growing, just not growing as fast.

There are other regions that are growing, but I see little relevance to the original point unless people expected continued growth in every region with no blips?

Phil_Latio

2 hours ago

I think you should rescale your ideological compass. If you just brush such inventions off the table, something is wrong.

Electric motors will prevail long term, simply for the fact that ICEs can't reach their efficiency. So no need to have this attitude.

locallost

3 hours ago

Because it's the only thing these companies know how to do.

larodi

3 hours ago

Seems brilliant to me, as this is true marvel of engineering, contrary to electrocars which... well are not. They could've been should the engine be powered by fuelcells, but in their present form the electrocar movement took off only because of green deal, climate change, etc, which forced governments to allow business create the needed infrastructure of batteries and powerstations.

Besides, you'd be surprised at the amount of work geard towards hydrogen-based economy which is still about burning stuff to turn wheels (even when electricity is produced) as they did in 1890s...

pineaux

2 hours ago

Yeah. It looks pretty cool. There is something satisfying about a complex mechanical mechanism. However, in its current form it is not the future. Combustion engines in general are not going to be the future. Hydrogen is a joke. Not energy dense enough. And expensive to make (energy wise). It also needs a vast network of gas stations.

squarefoot

3 hours ago

Because people who buy those cars usually don't give a damn about pollution, and this time they could even have a counter argument against "you're driving 150 years old technology", which they would rarely hear in their circles anyway. Except, hopefully, from their kids.

throwaway48540

2 hours ago

Lol, I really want to see a 150-year old EURO6 200kw diesel engine coupled with a 150-year old 9-speed automatic dual-clutch allowing me to drive on the 150-year old roads for 4 liters per 100 km at German highway speeds.

BTW, electric cars are older technology than ICE cars.

larodi

2 hours ago

So if you built your fortune on IT running in datacenters which consume magnitutes more energy to feed your customers; or else - if your business is about delivering stuff with 1000s of vehicles regularly being wasted... Tell me, at what point you start giving a damn about environment, and what pollution are we talking about at all?

Sorry, but HN is full of people who made fortunes not giving major fucks about lots of rules. Not being one of them, I still find it perfectly appropriate to see this article and appreciate it here precisely, and not on... CNN or DW.

You may go ask "Founder mode" whether he can dever be blamed into "not giving a damn", considering his caring character towards all humanity.

One thing I agree - nobody cares if a Porsche is putting a 0.00001 KG of CO2 out now and then, as its aesthetic value is much much higher.

squarefoot

13 minutes ago

That's a flawed analogy. Datacenter draw X power to do X work, and people using them don't care about the brand or aesthetics. Give techies and companies less power hungry alternatives and look how quick they will migrate. That is quite different for cars, unless their perceived value has nothing to do with their #1 function, which brings us back to my post: most people buying luxury cars give more importance to appearance rather than any environmental issue. I completely understand, but cannot agree.

azherebtsov

2 hours ago

It’s a ridiculous argument. You are typing this comment just because this damn not environmental friendly data center exists. But you pay nothing for HN. Hence someone’s do. That maybe this damn dude who made a fortune. But more than that, this dude has had to work hard long ago so that the data Center could be built and some nerds have got their jobs.

wiseowise

2 hours ago

I’m not sure what your point is. The comment you’re replying to never argued that this data center is unnecessary. Both prestigious cars and data centers are necessarily evil. Just for different audiences.

hnlmorg

2 hours ago

Electric cars still consume fossil fuels. It’s just earlier in the pipeline.

People love to talk about combustion engines being pollutants but few people talk about just how damaging it is mining for rare metals to make those batteries. Nor how harmful for the environment it is disposing of old batters (we haven’t yet solved the problem of recycling them either).

And that’s before you even touch on problems at the power grid. Eg many addresses don’t have high quality enough power infrastructure to cope with everyone switching to electric, so that would need to be upgraded. And a lot of countries still rely on fossil fuels to generate electricity to begin with.

Electric cars are likely the future. But they’re not as green as people like to think. In fact for some use cases they can actually work out both more expensive to run and less environmentally friendly once you total up their carbon footprint in full. And I think it’s going to be a long time before they become the greener option of everyone.

Whereas in the meantime, research into combustion engines can provide benefits for more than just petrol-fuelled sports cars.

thebruce87m

2 hours ago

Many of the myths you are posting are busted here: https://www.carbonbrief.org/factcheck-21-misleading-myths-ab...

The national grid in the UK was so fed up with people making claims about the grid capacity it also busted some too: https://www.nationalgrid.com/stories/journey-to-net-zero/ele...

> The highest peak electricity demand in the UK in recent years was 62GW in 2002. Since then, the nation’s peak demand has fallen by roughly 16% due to improvements in energy efficiency.

> Even if we all switched to EVs overnight, we estimate demand would only increase by around 10%. So we’d still be using less power as a nation than we did in 2002, and this is well within the range the grid can capably handle.

> Nevertheless, at National Grid we’re working with the distribution networks, government, the regulator and industry to provide the green energy infrastructure around Britain – the wires, the connections to charge points – to support the needs of a decarbonised transport network into the future.

> In the US, the grid is equally capable of handling more EVs on the roads – by the time 80% of the US owns an EV, this will only translate into a 10-15% increase in electricity consumption.1

citrin_ru

an hour ago

> Since then, the nation’s peak demand has fallen by roughly 16% due to improvements in energy efficiency.

Energy demand in UK declining because prices went up which accelerated deindustrialisation and forced people's to use less energy e. g. heat homes less .

JohnVideogames

31 minutes ago

British homes are almost exclusively heated by natural gas boilers; home heating is only a small part of the grid electrical load.

citrin_ru

19 minutes ago

Yes, gas heating is common (thought in apartment buildings electric heating is more likely) but electricity and gas prices are correlated for now.

roywiggins

2 hours ago

> few people talk about just how damaging it is mining for rare metals to make those batteries

thank goodness oil production isn't damaging at all and has zero cost, then

if you're going to talk about mining, every other environmental cost of the fossil fuel lifecycle is fair game. how confident are you that oil and gas come out ahead?

mjamesaustin

2 hours ago

Most of these claims are dramatically false.

- Electric motors use low amounts of rare earth metals, or in some cases none. Batteries generally don't use them either.

- Automotive batteries have been demonstrated as >90% recyclable, far better than most materials we consider "recyclable" today such as plastic

- The electric grid has sufficient capacity to onboard millions of electric cars without issue, and will not be impacted by the transition to EVs

- Cost of ownership of EVs is significantly lower than ICE vehicles in their class, as is the lifetime carbon footprint

guax

2 hours ago

Considering how early we get rid of cars that are still usable. I wonder how well the cost of ownership actually holds over when a battery change can overshadow many years of maintenance of an ICE.

I really think as soon as batteries get even cheaper and denser there will be no chance for ICEs to be dominant but right now the balance is still against the change.

azherebtsov

2 hours ago

I’m particularly interested in last three points. Do you mind to share some data?

For instance, where one recycle a Tesla battery, say in Poland?

I do not see to many chargers around and I believe the grid is not very modern here. Why do you think it can easily handle millions EVs? What about peak hours like nights? Do you think it will be env friendly, provided that majority of electricity in Poland is produced on coal plants.

EV initial cost is about 5-10 times more than a slightly used ICE in a perfect condition. Such a car car drive decades and will never reach in total spendings even initial cost of EV. I’m not counting charging that may not be very cheap. As electricity prices went up in recent years and may go up more.

When you stating something, think beyond your household. Your statements are not universal.

Y_Y

an hour ago

You've gone from false to unfalsifiable! (or at least unnecessarily vague).

- Plenty of electric drivetrains still use neodymium for example[0]. Whether it's too much or likely to change soon I don't know, but I feel like that's crucial to making a judgement on the overall harmfulness.

- Battery recycling is happening[1], but so is plastic recycling. Are batteries likely to be recycled, and are the environmental benefits and available profit sufficient to make it significant in the near future? Seems like yes, but it's not clear to me.

- Which grid? Is capacity sufficient just on average, or also at peak demand? Would that still be the case if EV adoption increases in the next five years? (or some timescale to short to build more plants). Looks like the US will do ok[2] but again it's not obvious.

- Does this also apply to buying new? Are you including resale value? What about carbon generated at power stations to provide the electrical power? This is a complex claim and it's hard to do anything with unless it's sharpened and given some numbers or at least references. Seems like price to consumer is roughly the same[3] and CO2 emissions even over about five years of normal use and will improve if the grid moves towards cleaner fuel[4].

Overall I think it's annoying for a commenter who knows the truth to go to the trouble of being convincing, but it's critical for having an interesting discussion that might change someone's mind.

[0] https://www.reuters.com/business/autos-transportation/automa...

[1] https://www.npr.org/2024/06/27/nx-s1-5019454/ev-battery-recy...

[2] https://news.mit.edu/2023/minimizing-electric-vehicles-impac...

[3] https://www.nada.org/nada/nada-headlines/beyond-sticker-pric...

[4] https://www.scientificamerican.com/article/electric-vehicles...

xxs

2 hours ago

>how damaging it is mining for rare metals to make those batteries.

Even thought I'd agree mass EV would not be carried by the current grid, or that charging density and time is not satisfactory (in most of Europe)... LiFePO4 doesn't contain rare earth metals, unless you count Li for 'rare'.

goodpoint

2 hours ago

> Even thought I'd agree mass EV would not be carried by the current grid

In many places putting solar panels on roofs and on parking spaces would solve such issue.

xxs

2 hours ago

Talk about North Europe winters - all the forever gray (and snow)

keyboardcaper

2 hours ago

Have you ever been to North Europe in the winter?

xxs

2 hours ago

>ever been to North Europe

No need for personal snark comments. Not everybody lives in the US. The worst part moving there was surviving the lack of sun light during the winter but that was many years back.

AtlasBarfed

2 hours ago

On top of that, the commenter is completely ignorant of the rise of saltwater batteries which don't even use lithium.

Also probably unaware that with the rise of extremely low cost, solar and wind, Fossil fuel use on the grid is economically nonviable long term.

Even so, the fossil fuels consumed on the grid are very likely to be combined cycle natural gas, which has less carbon emissions than have equivalent. Amounts of energy were burned in ice engines.

Also, The energy efficiency of electric vehicles is much higher than an ice car, so if solar and wind do not generate the electricity, it still will emit less carbon than an ice.

The only useful new engine technology I am interested in is an extremely compact recharging engine for use in plug-in hybrid electric vehicles. There was something about the inside out rotary engine a couple years ago but nothing has come off of it.

xxs

2 hours ago

>On top of that, the commenter is completely ignorant of the rise of saltwater batteries which don't even use lithium.

I'd not call the rise, yet. The Na ones' energy density (and specific energy) is even lower than Li based (LiFePO4 is lower than cobalt ones). They might be okay for grid storage, of course.

flir

2 hours ago

> less environmentally friendly once you total up their carbon footprint in full

I'm trying to think of an example, and I'm honestly coming up blank.

dyauspitr

2 hours ago

Maybe now they do but once you get everything on the electric standard it’s a matter of gradually switching over to a fully renewable grid.

locallost

an hour ago

On top of all the other replies debunking this, one thing left is that they're not the greener option for everyone. Auke Hoekstra has been pretty active (on Twitter etc) debunking this - electric cars' additional footprint gets paid off under 20k miles even at the emission levels of electricity grids of yesterday. As the grid decarbonizes further it will become even less. The number of cars driven less than 20k miles is irrelevantly tiny.

https://x.com/AukeHoekstra/status/1332464525602410498