Japanese firm believes it could make a solid-state battery with a range of 745 miles that charges in 10 minutes

2 points

Yeah, chuck in on the pile of “battery innovations” that get announced but never come out. It’s a large pile.

Hydrogen is the future.

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2 points

Why do you feel hydrogen is the future?

From my understanding, it’s more of a fuel than a storage medium so they kind of play different roles. On top of that, I thought it’s currently pretty difficult to store outside of pretty extreme conditions and the best way to create it at the moment is by burning fossil fuels (natural gas).

I’m not an expert, so let me know if I got any of that wrong!

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2 points

TL;DR: You’re correct, in my professional opinion.

The catalyst in most hydrogen fuel cells are still too expensive and have a limited life. Hydrogen will mostly be sourced as a waste product from oil and gas extraction (though it could be done with clean electricity and electrolysis), that’s why oil and gas companies are becoming so interested in pushing hydrogen (see the successful “clean” natural gas campaigns, but depending on how you measure it natural gas can result in more emissions than coal and is just a bunch of greenwashing. Same would happen with hydrogen in my opinion). Additionally, we’d have to build out an entire hydrogen delivery infrastructure that serves only that purpose. We’ll just end up with commercial fuel stations like we have now. Fuel cells (for many fuels) can make sense in very remote applications, or industrial applications where specific waste gasses can be turned into supplemental electricity right on site.

Battery-electric on the other hand is much more flexible and fits into our existing infrastructure better. It’s not just power dense batteries for cars; it’s (maybe gravity) batteries for communities, safe and long-lived (maybe salt) batteries for homes, better batteries for our electronics. Research in one area can support improvement of the others. They all connect to the same electricity grid so the energy can be shared among applications. Batteries play a role in decentralizing and democratizing energy (today you can put PV on your house, charge your car or home battery, use your car to power your house in a power outage, etc). As mentioned we can use greener and cleaner batteries (even completely non-chemical) in some applications, and one day we can hopefully get to the point of using ultra- or super-capacitors in place of high-density chemical batteries. In the mean time we have batteries that work and are getting quite affordable, we can transition to this solution now without waiting for a miracle breakthrough, then continue to iterate the technology over time.

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0 points

Hmm I thought Toyota was focusing more on Hydrogen powered cars as a long-term strategy rather than EVs.

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0 points

Yes, in the US they have gone so far as to lobby against EV adoption and run anti-EV commercials in favor of trying to get people to buy their hybrids. They innovated earlier with the Prius but then stagnated and are behind now and instead of trying to catch up, they spent time and money trying to block competition. Really made me dislike the company despite the stellar reputation of the quality of their vehicles.

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1 point

Especially since hydrogen as a fuel is a dead-end, so far as I can tell. In addition to the net energy loss that come from separating hydrogen from whatever else it’s attached to in the precursor material (please tell me they’re not using water for this…), who is going to want to drive a 2025 Toyota Hindenburg?

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8 points

Since Toyota is way ahead with hybrids but behind with EVs, this would be a way to tell the public, “wait, don’t buy a competitor’s EV, because we’ll have something 100x better in a year or so.”

I hope I’m just being cynical, because solid state batteries do sound awesome. I wonder was the weight difference would be

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5 points

Oh fuck off with that charging times.

Assuming this battery will be 150kwh (which is a conservative estimate for such a range)

Let’s ignore even heat loss So you need to 150kwh in 10 minutes, wish equals to 900kw of immediate charging speed.

Now imagine 20 of those power inputs connecting/disconnecting on a local power management substation.

Not fucking gonna happen.

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1 point

Even if the power load on the grid was doable, heat dissipation is also a huge problem. Current DC fast chargers max out at 350 kW (in theory, my car supports charging at that rate but the best I’ve seen in real life is around 190kW), and the liquid-cooled cables are already heavy/bulky enough to give some women and older folks a hard time. I can’t imagine a practical way to handle 2 or 3 times the current without making the cables something like 6 inches in diameter and weighing a couple hundred pounds.

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1 point

The quickest way I’ve found to separate the articles that are going to be meaningless waste-of-time fluff pieces from ones that might be informative is to find the verb in the headline.

Is it something like “claims”, “calls for”, “praises”, “criticizes”, or “expects”? Fluff. If something deserving of a more concrete, direct verb had happened, the headline would have said so. Verbs like “slams” or “attacks” or “demands” are even worse; they’re aggressive and enthusiastic about their content but still can’t make the claim something actually happened or changed.

If the verb is preceded by “could”, “might”, “maybe”, or similar, especially with regard to tech news, it’s also probably an empty slow-news-day article, but those words aren’t necessarily as hollow as the ones mentioned above. Sometimes they’ll contain interesting information about the current state of things, even if they’re just going to lead you on a merry speculation romp about the optimistic/horrifying future.

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