• @Agent641@lemmy.world
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            32 years ago

            Li-ion batteries explode.

            LiFePO4 batteries can’t explode without the aid of some C-4. Im so tired of my boi LiFePO4 being lumped in with their explodey cousins.

            • @PeterPoopshit@lemmy.world
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              2 years ago

              I like lifepo4 batteries. You can safely forget about them and then they don’t burn your house down. They last long enough that when you finally do remember and need them for something years later, they’re probably still good.

        • Cosmic Cleric
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          22 years ago

          This image, right or wrong, is why hydrogen cars were never going to win. The public gestalt on how they thought of them mimics this photo.

        • @PersnickityPenguin@lemm.ee
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          2 years ago

          The reason why the Hindenburg exploded like that was because they coated the fucking thing in what is essentially thermite. They doped those things with aluminum powder mixed with nitrate.

    • @assassin_aragorn@lemmy.world
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      22 years ago

      Ironically hydrogen works well as a storage solution for the variability of wind and solar. When you have a large excess of them, you can run electrolyzers to generate green hydrogen. And then when the grid needs some more supply, we can use that hydrogen to make up the gap.

      • Hypx
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        12 years ago

        Which is basically the same problem with green transportation: A car is usually lightly used, but every once in a while you drive hundreds of miles. That requires a high capacity energy storage mechanism where “efficiency” is not that big of a concern. But that creates the need for hydrogen cars. At best, you can conceive of a plug-in hybrid car where short trips are battery powered. But then you have redundant infrastructure, and it is simpler to just to move everyone to hydrogen.

        • @assassin_aragorn@lemmy.world
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          12 years ago

          I will also say that transport and storage of hydrogen is way better than what people are envisioning here. Full disclosure, I work for a hydrogen energy company, so I am biased, but I also have seen things in this space work well

  • @coyootje@lemmy.world
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    152 years ago

    This is my main problem with hydrogen cars. I think it’s a very cool concept that might eventually overtake pure electric cars but there’s almost no places to get hydrogen yet.

    • FuglyDuck
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      2 years ago

      It also requires dedicated infrastructure. EVs can have charging stations at basically anywhere with a power hookup (or a genset. A grocery store here puts small VAWTs to charge off of in their parking lots. And every new-ish building has added charging stations to some of their spaces.

      Hydrogen cars would need refueling stations with dedicated pressurized gas hookups, tanks, and fill machines. And the tanks and the tankers to keep the tanks full.

      Finally the ultimate problem is it’s rather low energy density.

      • @AA5B@lemmy.world
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        102 years ago

        And all that infrastructure is a problem that doesn’t need solving with EVs. An entire industry we don’t need to build/rebuild

    • Flying Squid
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      172 years ago

      Something else no one has said yet (I think) is that most hydrogen is produced from natural gas, so this is in no way a climate solution. It’s been sold as one and it’s bullshit.

      • @Moonrise2473@feddit.it
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        92 years ago

        While producing hydrogen from natural gas is cheaper, this company claims to produce it with electrolysis

        But IMHO at the moment is a waste of energy

      • @UniquesNotUseful@lemmy.world
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        82 years ago

        Yes but not for long.

        As (generally climate denying) people love to point out, wind and solar is erratic power generation. For this reason you need triple capacity Vs requirements.

        This means that for a huge amount of time you’ll have excess energy, once we start to be predominantly renewables, battery storage is expensive. One of the solutions is to create hydrogen, also pumped hydrogen, etc.

    • rentar42
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      172 years ago

      Why do you think it’ll overtake electric cars? The energy efficiency of hydrogen cars is significantly worse, as they introduce some extra steps in pipeline of energy-generation -> movement.

      The only major advantage they have is “ICE-like” fuelling, which has a bunch of major caveats attached to it (as in: it’s nowhere near as simple a system as ICE refuelling. Everything from generation, to transport to getting-it-in-the-car is way more complex and thus expensive and error-prone).

        • @night_of_knee@lemmy.world
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          2 years ago

          I hadn’t thought of it before but it’s obvious, hydrogen is a gas at room temperature, it had to be stored under pressure in order to get any significant mass into the volume of a tank. So it’s under pressure in the refueling station and in the car’s tank. How does it get from one to the other without boiling away?

          • @supercriticalcheese@feddit.it
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            22 years ago

            Hydrogen is a gas, under very high pressure but you will never find it in a liquid form unless you cool it down to -250 C or so. It’s not used in liquid form for such applications.

            There is though the need to chill the hydrogen to about -20/-40C before delivery to the vehicles due to some anomalous properties of hydrogen respect to ever other gas known to humans.

          • @joel_feila@lemmy.world
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            22 years ago

            oh there are a few ways. One group is researching turning H2 into a paste. the paste mixes with water and breaks down into water and Ca+ ions. You now have a energy density around liquid hydrogen and it only add some calcium to the exhaust. There is also storing hydrogen in metal disks.

    • Carighan Maconar
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      2 years ago

      I dunno, everything I’ve always seen on it made it seem like a hyper-specific solution that’s more suited to a few edge cases that could have their specific infrastructure.

      For the average consumer, the recharging of EVs is actually Not A Big Deal™️. It seemed like one at first. Now all it does is ensure I take hourly short breaks which I should have been doing anyways, basically. The only big upside of Hydrogen is the ability to refill very quickly, but you pay with a whole bunch of downsides like inefficient generation, inefficient transportation, secondary infrastructure, energy inefficiency, etc.

    • @endhits@lemmy.world
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      52 years ago

      They’re still electric cars at their base. They just use a hydrogen reactor in lieu of a battery to power the motors.

      I don’t see a future where hydrogen supplants electric cars, unless there’s some revolution in storage technology for it. In that case, progress in battery tech is more likely.

      • threelonmusketeers
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        22 years ago

        True, but “gas” is not a gas in the way that hydrogen is a gas. Hydrogen presents some unique storage and distribution issues.

    • @GenEcon@lemm.ee
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      2 years ago

      Another problem to the already mentioned ones (expensive, expensive dedicated infrastructure needed) is the range. Hydrogen is not very energy dense. For example the Toyota Mirai has a range of 500 km (310 miles) and its a pretty big, fuel-efficient car and the fuel storage is as big as the vehicle allows it.

      So while you can refuel faster than electric, you need to do it more frequently and its less convenient.

        • @spongebue@lemmy.world
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          22 years ago

          Just spitballing here, please pretend I’m some rando on the Internet and not some kind of expert.

          On its own, there’s not much wrong with it. It takes a little longer to fill than a normal gas dispenser, but not bad. But you’ll still need to put hydrogen fuel stations everywhere similar to gas stations now.

          Hydrogen’s biggest competitor is pure electric. I love my EV in part because I can charge at home. There’s just something really nice about waking up to a full battery every day, and realizing you haven’t been to a gas station in months (I have an ICE as well, but it’s not my daily driver). Having to go to a fueling station every week or so again would feel like a big step backward, especially if we need to create a from-scratch infrastructure for it. We already have power lines pretty much everywhere, and can generate power relatively easily, so much of the hard part is done.

          Going back to range: in theory this problem could be alleviated if the range were enough that one had to refuel less often, but going through all that trouble to be in a similar situation to what you’ve had, when a better alternative exists? Nah.

      • @stealthnerd@lemmy.world
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        12 years ago

        The XLE does 410 miles. Few electric vehicle can touch that and EV ranges decline over time so almost no EV that’s more than a couple years old could match it.

  • @PersnickityPenguin@lemm.ee
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    42 years ago

    Relevant bits:

    “According to the Danish Car Importers association, there were 147 fuel-cell cars on Danish roads at the end of last year, with only one sold so far this year — all of which now have no means to refuel.”

    “He added: “There is no doubt that hydrogen cars are not an option in the short term and that electric cars will win the vast majority of the passenger car market.”

  • Cosmic Cleric
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    32 years ago

    As a former Betamax owner, even I could see that hydrogen wasn’t going to win this one.

    • Hypx
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      02 years ago

      Hydrogen is guaranteed to win this one. Batteries are just another unsustainable greenwashing idea. People are falling prey to BEV propaganda.

      • Cosmic Cleric
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        12 years ago

        Hydrogen is guaranteed to win this one.

        I wish I knew if you lived in Denmark or not.