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IF this is true, it would be a massive breakthrough. Truly monumental. Hence, I am skeptical. But otherwise, this would be a massive thing. a 2x capacity per w
by rocqua 6y ago
IF this is true, it would be a massive breakthrough. Truly monumental.
Hence, I am skeptical.
But otherwise, this would be a massive thing. a 2x capacity per weight advantage of batteries? Without an increase in space? That comes down to doubling the range of EVs, and making electric planes and rockets a lot more viable.
A 3x capacity per space advantage means roughly a 3x improvement in your phone and laptop battery capacity. Or, more likely, a slight improvement in your phone and much thinner phones. On laptops, we might see the return of more ports.
A 10x speedup of charging? That makes all-day EV travel a lot easier. It makes topping off your phone something you can do a minute at a time, rather than an hour long process. It means, with wireless earphones, you can re-charge them in a minute and almost never be without them.
If even a third of what they claim here is possible, it would be amazing.
- sveme 6y agoWith the latest iphones, I already stopped night charging and just top it up whenever I'm close to a charger, i.e., in the car or in the kitchen.
- dontcarethrow2 6y agoBig if true, but I really don't need a thinner phone. Marketing will most likely salivate at an easy to break phone. Therefor I really hope this breakthrough is fake.
- Qwertious 6y agoI've seen iPhone ads advertising how hard to break they are recently, if that has a basis in reality and isn't purely marketing spin then we're fine.
- dTal 6y agoWhat exactly is an "electric rocket"?
- Qwertious 6y agoPresumably a rocket with a power source separated from its exhaust, and that flings its exhaust material out with an electrically-powered device. So basically think of a 'reverse railgun'.
- rocqua 6y agoI was thinking of https://en.wikipedia.org/wiki/Electron_(rocket) https://en.wikipedia.org/wiki/Electron_(rocket) Which uses electric power to pump the fuel and oxygen into the nozzle.
- ben-schaaf 6y agoEvery railgun is a thruster - or gun for that matter: https://what-if.xkcd.com/21/ https://what-if.xkcd.com/21/
- HeadsUpHigh 6y agoThat's an ion thruster. They've been around for a while.
- MertsA 6y agoMagic? Non-satirical response, there's companies like Rocket Lab that make electrically powered turbopumps to simplify their rocket engines but that comes with very steep power requirements. The Electron rocket literally has lithium ion packs that drop away from the rocket as they are depleted and the weight of those packs really starts to add up because those turbopumps use absolutely insane amounts of power to keep up with the pressure and fuel flow requirements of the engine.
- de_watcher 6y agoNot counting turbopumps for chemical engines there is also an electric propulsion when in space.
- ben-schaaf 6y agoTo expand on this there's these things called ion thrusters that use an electrically generated magnetic field to accelerate gas particles at extremely high velocities out the spacecraft thereby generating thrust. These are stupidly efficient but also very low thrust. Due to the high power usage I don't see much of an application for even incredibly dense batteries as you still need a sufficiently large power source anyway - though I'm no rocket scientist.
- pbhjpbhj 6y ago>Or, more likely, a slight improvement in your phone and much thinner phones. On laptops, we might see the return of more ports. // Please, no. I don't understand the utility of making something so expensive be so fragile and hard to hold. My phone is 5mm thick, that's already too thin for me. Does anyone want thinner phones or is it just a marketing thing?
- de_watcher 6y agoA phone with a wide screen is hard to hold. I'll begin having issue with thickness only if it starts cutting fingers.
- gsich 6y agoMarketing.
- foota 6y agoI wouldn't mind too much if it meant I could put a case on it and have it be the size it is now.
- rocqua 6y agoI do want a slightly thinner phone, or maybe for some of that extra space to be used for padding / reinforcement. This phone is almost always in my pockets, if it is thinner, it fits better.
- darksaints 6y agoThe battery life on my oneplus 8 is the best I have ever had on a phone, and the difference it makes is massive. If I am ever faced with the trade-off between thinner phone and bigger battery, I'll take the bigger battery every time.
- 0xffff2 6y agoThe thinner the phone, the thicker the case I can put on it with the same total thickness. It's incredibly rare to see a case-less phone in the wild these days.
- 6y ago
- 0xffff2 6y agoA 3x increase in density does approximately nothing to make electric airliners more viable. We need more like a 100x increase before we see an electric 737 or A320.
- alkonaut 6y agoThis is the second time in this discussion someone mentions electric planes being viable and you respond with electric airliners not being viable. Those are (in most peoples terminology) entirely different things. Having viable light electric aircraft could revolutionize flight even if every aircraft for more than 20 people would run on kerosene for the next century. I don’t think anyone is expecting a battery powered 737 any time soon. But a battery powered Cessna 172 with a 30 minute range would be huge.
- cmrdporcupine 6y agoThis. Enhancing drone flight times, or other automated/semi-automated airborne machinery would be an absolutely huge win for industry and commerce as a whole.
- 0xffff2 6y agoI can state from experience that you're mistaken in what you think people expect. I work in a field very closely aligned with electric aircraft, and people who say "electric planes" without further qualification virtually always mean "electric 737s". I also strongly question your assertion that viable light electric aircraft could "revolutionize flight". What exactly would the revolutionize? 2 seat electric trainers already exist, but the niche they fill is tiny. You're not going to move the needle on aircraft emissions with anything short of electric airliners. The rest of it is just a way to keep the research funded until we get there.
- Obi_Juan_Kenobi 6y agoAn electric airliner would be able to operate at much higher altitudes, and thus much more efficiently. Looking only at energy density is naive.
- 6y ago
- driverdan 6y ago> A 10x speedup of charging? Not possible with existing infrastructure. The limiting factors are cooling the batteries and feeding them enough power. On small scale like laptops it's possible to speed up charging but not at large scale like cars. That isn't to say it may be possible in the future but it isn't now.
- snovv_crash 6y agoIt increases the charging speed by reducing the heat produced while charging.
- driverdan 6y agoIf it makes charging more efficient (less energy converted to heat, more stored) then it would improve the charge rate but not by 10x.
- snovv_crash 6y agoCharging rate is typically limited by thermals. If you drop heat by 10x you can bump charge speed by the same.
- HeadsUpHigh 6y agoThe main way you can make batteries charge faster is my reducing the heat produced. This is the first limitation you hit anyway
- Teckla 6y agoI would like to see phones and batteries decoupled; i.e., phones without batteries. Most people use phone cases anyway; put the battery in the phone case. Replace the case as desired.
- TT3351 6y agoMost Android phones used to have swappable batteries. Too convenient and not thin enough, I guess.