[ARCHIVED THREAD] - GAME CHANGER: Toshiba develops EV battery that can go 200 Miles after only 6 minutes of charge (Page 5 of 5)
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Alternators need power to drive them and they are far from 100% efficient. They suck more power than they produce. Quoted:
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Maybe a stupid question but isn't an auto alternator a 3 phase? If so, why couldn't that take up the lion's share of recharging the batteries while driving? Not sure if it wouldn't give back more than it takes though.................??? |
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So you'd burn gas in a generator for hours and hours to recharge a car, when it would have been easier, quicker and more efficient to pour the gas directly in to the vehicles fuel tank? You'd have to have one hell of a generator on hand to charge a car anyway, let alone charge it in anyway approaching the time that this article claims. Quoted:
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I can keep gas in jerry cans, throw it in the back of the truck, and if I need to use a hand pump to get it out of tanks from stations when there is no power. Can't do that with batteries. I live in Hurricane Alley. Batteries don't work well for me. You'd have to have one hell of a generator on hand to charge a car anyway, let alone charge it in anyway approaching the time that this article claims. I was thinking more about "six minutes to recharge the batteries" like the article we are discussing stated. |
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Maybe I'm misunderstanding your question, but you can't recharge a vehicle with the electrical power output it generates. "Lisa, in this house we obey the laws of Thermodynamics!" Quoted:
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What REALLY REALL REALLY gets neglected in this "200 miles of range in 5 minutes of charging!" is... that is a FUCKTON of power being transferred in such a short period of time. You need a HUGE YUGE YUUUUUUUGGGEEEEE source of power to push that much energy into a battery. Yeah, I think electric cars are good, and I think they'll get much cheaper and much more practical, in part by things like this battery, and yes, I do think that infrastructure will be developed to do this superfast charging... but I always think it's weird as fuck no one bothers to do the math about how much power it actually takes to charge a battery like that in such a short time. If you make the plug 3 phase then the vehicle is going to have to have some heavy duty hardware to take 480 3 phase and charge a 400v battery Also houses dont have 3 phase. most businesses dont have 3 phase This would be an infrastructure night mare coupled with the needed upgrade to the power distribution and generation system to supply this much more power. If so, why couldn't that take up the lion's share of recharging the batteries while driving? "Lisa, in this house we obey the laws of Thermodynamics!" |
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Friction and heat always want their cut. Quoted:
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Yeah, good point..........they probably do suck up some power. Not sure if it wouldn't give back more than it takes though.................??? I mean, I am pretty sure they are 3 phase so I was thinking they might have potential.............??? |
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No way a generator could be cost effective in recharging in this scenario? I mean, I am pretty sure they are 3 phase so I was thinking they might have potential.............??? Quoted:
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Yeah, good point..........they probably do suck up some power. Not sure if it wouldn't give back more than it takes though.................??? I mean, I am pretty sure they are 3 phase so I was thinking they might have potential.............??? Now, a motor can be a generator in a electric/hybrid car and they already do it for most, it's called regenerative braking. |
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Nope. Now, a motor can be a generator in a electric/hybrid car and they already do it for most, it's called regenerative braking. Quoted:
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Yeah, good point..........they probably do suck up some power. Not sure if it wouldn't give back more than it takes though.................??? I mean, I am pretty sure they are 3 phase so I was thinking they might have potential.............??? Now, a motor can be a generator in a electric/hybrid car and they already do it for most, it's called regenerative braking. |
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Oh well, throw that idea out the window..........thanks for the info. The BS most everyone is missing isn't so much the a availability of power for 6-minute charging--which is a problem--it's getting 200 miles worth of energy into the battery in six minutes without burning the car--and the buildings around it--to the ground. The prodigiousness of the power availability of these cars' charging needs would have to be matched by equally prodigious battery-cooling power. Those whose retort is [paraphrasing] "may as well pour gas into the car and burn it in an engine" aren't just hating on Mother's Good Earth (MGE). They recognize the implications of proposed 6 minute, 200 mile range battery charging: MGE, Herself, would prefer gas burners over the proposed... 
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Sounds more like a Super Capacitor battery hybrid than a pure battery. I wonder how long it would stay charged when not driven? a day? a week? If it holds the charge over a month reliably, then it's definately going to change things from phones to cars, but if it self-discharges whether you're driving or not, it will have limited utility. That's the biggest issue with super capacitors getting larger right now. |