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10/23/2017 8:57:28 PM EST
[#1]
i would like to see this tech in a motorcycle.

Kthanxbye
10/23/2017 8:57:44 PM EST
[#2]
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I hate electric cars, but that's a big deal.

Very cool.
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Why?

I love gasoline engines, but we are fast approaching the practical limit for performance. We are just starting with Electric, and the performance, not to mention power to weight possibilities are incredible.

Either they were going to have to make the batteries swappable at a station, or batcaps to make it viable.  The batcap is the best option, and if this pans out as true, I’m all in.
10/23/2017 8:58:31 PM EST
[#3]
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Have the gas corporations bought the patent to never be seen again?
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Don't forget the Fish Carburetor that got 100MPG....................
10/23/2017 9:01:15 PM EST
[#4]
There has been a staggering amount of intellectual capital applied to the battery problem.  It will be solved.
10/23/2017 9:03:13 PM EST
[#5]
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Why do people keep posting that crap? Has anyone even calculated the energy draw of 2 million EVs? Because that is less than 1% of the registered/titled vehicles. I do not care if you are talking off peak overnight hours, excluding the fact that there are industries that only run in those hours, that is a significant energy draw.


Which takes even more time to get approved and built than a new coal power plant.
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In the event that electric car usage becomes wide spread, there will be no "off peak hours" but probably a change of peak hours.
10/23/2017 9:04:17 PM EST
[#6]
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There has been a staggering amount of intellectual capital applied to the battery problem.  It will be solved.
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Now they need to spend a little on figuring out how to recharge them all every night because our national grid and power plants are not up to the task.
10/23/2017 9:09:21 PM EST
[#7]
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Now they need to spend a little on figuring out how to recharge them all every night because our national grid and power plants are not up to the task.
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There has been a staggering amount of intellectual capital applied to the battery problem.  It will be solved.
Now they need to spend a little on figuring out how to recharge them all every night because our national grid and power plants are not up to the task.
That is because we don't have enough wind farms, and solar panels, man!
10/23/2017 9:19:33 PM EST
[#8]
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How many amp hours are these batteries?
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Dunno, but charging that fast must be a ridiculous draw of power.  I bet the heat up pretty fierce.
10/23/2017 9:34:49 PM EST
[#9]
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This is great news for the 8 year olds that dig up Elan Musk's Lithium for the electric cars.
These kids need job security!
https://www.AR15.Com/media/mediaFiles/413300/lithium_mining_2-341836.JPG
https://www.AR15.Com/media/mediaFiles/413300/lithium_mining-341837.JPG

Lithium mining
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That's just stupid.  First of all, they aren't mining lithium, they are mining cobalt which is probably worse.  Second, those kids were constantly beaten for losing goats or not picking oranges fast enough before they got beaten for picking the cobalt rocks fast enough. 

If the Belgians retake the Congo, they can make the place nice with really excellent beer.
10/23/2017 9:36:02 PM EST
[#10]
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Assume a 10kw/h battery.  Now x10 to get it in 6minutes. Devise by volts.  900+ amp charger.  Yes, the current electric grid can handle that... rofl.
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Gonna need a bigger transformer and some thicker triplex, and a meter with a lot more magic smoke inside of it.
10/23/2017 9:38:00 PM EST
[#11]
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So I cant say more than this but you might want to research companies that produce and market titanium dioxide. Not a recommendation....................
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You mean like out of the paint? Does it have electrolytes?
10/23/2017 9:39:24 PM EST
[#12]
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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.
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The article doesn't make it sound like a capacitor at all.  It says they changed the anode materials. 
10/23/2017 9:40:37 PM EST
[#13]
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Why don't they use capacitors?    What's the max capacity of capacitors which could be carried by an EV?
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Capacitors haven't reached the energy storage capacity of batteries.
10/23/2017 9:43:07 PM EST
[#14]
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Why?

I love gasoline engines, but we are fast approaching the practical limit for performance. We are just starting with Electric, and the performance, not to mention power to weight possibilities are incredible.

Either they were going to have to make the batteries swappable at a station, or batcaps to make it viable.  The batcap is the best option, and if this pans out as true, I’m all in.
View Quote
That sounds wonderfully practical. So we'll just have a crew and some cranes on staff to swap out 3-400 lbs battery packs, at every other station, then? And a fenced yard of freshly charged battpacks, alll standardized for each brand. Cool. I want the battery swap team to wear logo coveralls and sing, like in the fifties, too.

Edit: Hey, all you unemployed McDonalds guys that lost your jobs to robots...gotta deal for you!
10/23/2017 9:45:14 PM EST
[#15]
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They want to Make American Great Again by making sure that the oil/automotive complex which has been responsible for 2/3s to 3/4s of our trade deficit for 40 years now keeps on going. Also hoping for an American company that is a global leader in an emerging industry to fail while cheering on it's foreign competition... It's the only way America can truly be great again.
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Your post makes even less sense considering that electric cars mean being able to use a variety of energy sources other than imported oil.
10/23/2017 9:50:57 PM EST
[#16]
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On the contrary. That new lithium battery would be a big help for them. Their cars currently run off of several thousand 18650 lithium batteries. These new batteries will shorten the Tesla car's charging time and increase their range. I've wondered why Tesla doesn't incorporate solar cells into the roof, hood, and trunk lid of their cars so they would be constantly charging the batteries as long as they were exposed to the sun. Would just require redesign of regular solar cells into an integrated array that could be designed to appear to be part of the hood, roof, and trunk lid.
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That's nice, too bad they're under contract with Panasonic for a long fucking time. Do people simply have no idea that Tesla was going to change the world by making all it's own shit(lol) and being a technology company that was(they're not)going to change the game on technology.  
10/23/2017 9:53:47 PM EST
[#17]
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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.
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I was wondering if the quick charge capacitors are used to discharge to the batteries for endurance.
10/23/2017 9:59:49 PM EST
[#18]
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Gonna put this right near the rest of the stack of "battery breakthrough game changer never been dun befo" items and wait until it's actually on the fucking market before getting excited.

There are dozens of announcements like this every year, none of them fruition into anything at all.
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Toshiba is notoriously reliable in making claims. You rarely hear from them and when you do, you can place a very high confidence level on their statements.
10/23/2017 10:00:13 PM EST
[#19]
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I also want to throw out there that the charge time is all good and fine, but what would it matter if your 200 mile range battery can charge in 5 minutes, if it weighs 3000lb?

Energy density is the HUGE hurdle for batteries, not charge time. Most battery cells can charge in a pretty reasonable amount of time as they are, but most charging systems in vehicles can't charge as fast as the batteries could realistically absorb the power. (heat management and degradation aside)

Now, lots of people here have said that batteries need to get to an equal amount of energy storage per gallon that gasoline has. This isn't really true. A gallon of gasoline has about ~34kWh worth of energy (thermal). Not all of that is converted into work, of course. So if we take a pretty fuel efficient vehicle that gets 40MPG (not a hybrid, straight ICE power) as the measuring stick, we only need a similar volume of battery to get that range. This is easy to guesstimate, as a Chevy Volt does about 40 miles on ~10.5kWh (I owned a Volt for 3 years, this is my hands on "I actually owned one" experience).

Thus a battery really only needs to get to about 10-12kWh per gallon volume/weight to have the same usable energy as a gallon of gas.
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Tesla already makes cars that have 200 mile range, so while heavy, such batteries obviously don't way 3000lb.
10/23/2017 10:03:42 PM EST
[#20]
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That sounds wonderfully practical. So we'll just have a crew and some cranes on staff to swap out 3-400 lbs battery packs, at every other station, then? And a fenced yard of freshly charged battpacks, alll standardized for each brand. Cool. I want the battery swap team to wear logo coveralls and sing, like in the fifties, too.

Edit: Hey, all you unemployed McDonalds guys that lost your jobs to robots...gotta deal for you!
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Quoted:


Why?

I love gasoline engines, but we are fast approaching the practical limit for performance. We are just starting with Electric, and the performance, not to mention power to weight possibilities are incredible.

Either they were going to have to make the batteries swappable at a station, or batcaps to make it viable.  The batcap is the best option, and if this pans out as true, I’m all in.
That sounds wonderfully practical. So we'll just have a crew and some cranes on staff to swap out 3-400 lbs battery packs, at every other station, then? And a fenced yard of freshly charged battpacks, alll standardized for each brand. Cool. I want the battery swap team to wear logo coveralls and sing, like in the fifties, too.

Edit: Hey, all you unemployed McDonalds guys that lost your jobs to robots...gotta deal for you!
Too bad for the unemployed McDonald's guys, if battery swap ever becomes a thing, it will probably look more like this, than a 1950's gas station.

BattSwap battery swap system for electric cars
10/23/2017 10:04:03 PM EST
[#21]
We have a Niobium deposit in the US. It is in Nebraska. It is low grade making it uneconomical to mine, particularly in light of how environmentally impactful it is to mine and refine. But if the market value or strategic need was high enough, we have a reserve.

NioCorp Nebraska Niobium Deposit

There are many other rare earth deposits in the Americas that aren't mined due to economics. But if China gets stingy or prices rise, we can get at it.
10/23/2017 10:07:02 PM EST
[#22]
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I won't be surprised to see them get those charging times down in the future.
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I want to see the heat sinks they used to keep it cool...
10/23/2017 10:08:35 PM EST
[#23]
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On the contrary. That new lithium battery would be a big help for them. Their cars currently run off of several thousand 18650 lithium batteries. These new batteries will shorten the Tesla car's charging time and increase their range. I've wondered why Tesla doesn't incorporate solar cells into the roof, hood, and trunk lid of their cars so they would be constantly charging the batteries as long as they were exposed to the sun. Would just require redesign of regular solar cells into an integrated array that could be designed to appear to be part of the hood, roof, and trunk lid.
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Umm.... Tesla is betting huge on current Li ion tech with their gigafactory, if Toshiba refuses to license to them and their batteries are obsolete before the factory is finished, that will be enough to crater the company.

Either way, 200 miles requires ~ 60kwh.  To power required to transfer that amount of energy in 6 minutes is 600,000W!  Charging to support that is not feasible, unless you plan to install that at substations.
10/23/2017 10:10:21 PM EST
[#24]
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Well that's some serious shit if legit.
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And it's what EV cars have been waiting for to really become practical.
Combine that battery with a 15-20kw diesel generator for the ultimate hybrid.  Run on EV until the battery gets down to like 30% then generator starts up and with conservative driving recharges you back up to full power and shuts down.

10/23/2017 10:12:58 PM EST
[#25]
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Either way, 200 miles requires ~ 60kwh.  To power required to transfer that amount of energy in 6 minutes is 600,000W!  Charging to support that is not feasible, unless you plan to install that at substations.
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600KW it going to generate a fuck ton of heat in that charging battery
10/23/2017 10:30:27 PM EST
[#26]
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Too bad for the unemployed McDonald's guys, if battery swap ever becomes a thing, it will probably look more like this, than a 1950's gas station.

https://www.youtube.com/watch?v=G9WXExbF0GI
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Why?

I love gasoline engines, but we are fast approaching the practical limit for performance. We are just starting with Electric, and the performance, not to mention power to weight possibilities are incredible.

Either they were going to have to make the batteries swappable at a station, or batcaps to make it viable.  The batcap is the best option, and if this pans out as true, I’m all in.
That sounds wonderfully practical. So we'll just have a crew and some cranes on staff to swap out 3-400 lbs battery packs, at every other station, then? And a fenced yard of freshly charged battpacks, alll standardized for each brand. Cool. I want the battery swap team to wear logo coveralls and sing, like in the fifties, too.

Edit: Hey, all you unemployed McDonalds guys that lost your jobs to robots...gotta deal for you!
Too bad for the unemployed McDonald's guys, if battery swap ever becomes a thing, it will probably look more like this, than a 1950's gas station.

https://www.youtube.com/watch?v=G9WXExbF0GI
Cool. We'll be using all electric equipment and robots to build enough of those setups to handle an all electric fleet, and remove all the gas and diesel fueling stations and tanks too, right? In the next ten years?
10/23/2017 10:35:47 PM EST
[#27]
Sure, but wtf is the power source needed to charge that shit.  You sure ain't gonna charge up for a 200 mile trip in 6 minutes off of a commonly available low voltage power source...
10/23/2017 10:49:48 PM EST
[#28]
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Battery tech making that next big leap will result in actual robot police officers/soldiers/mechanics.



I hope we never get there.
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This is exactly what I was thinking.
10/23/2017 10:53:55 PM EST
[#29]
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On the contrary. That new lithium battery would be a big help for them. Their cars currently run off of several thousand 18650 lithium batteries. These new batteries will shorten the Tesla car's charging time and increase their range. I've wondered why Tesla doesn't incorporate solar cells into the roof, hood, and trunk lid of their cars so they would be constantly charging the batteries as long as they were exposed to the sun. Would just require redesign of regular solar cells into an integrated array that could be designed to appear to be part of the hood, roof, and trunk lid.
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Discharge, park your car for three days and your battery explodes.
10/23/2017 11:00:37 PM EST
[#30]
Hmmm, Lithium -
How much do we have on Earth?
Was Star Trek again ahead of its time in the ever on-going search for "Di-Lithium" power???
Co-incidence?  I think not.... 
10/23/2017 11:04:36 PM EST
[#31]
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Capacitors haven't reached the energy storage capacity of batteries.
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Not true in the case of Graphene supercaps.  They're definitely able to achieve energy storage densities comparable to lithium based battery technologies.

And graphene isn't even toxic.  A baby could eat it.  

The catch is in the power output curve.  Batteries have a fairly flat voltage level until they reach depletion,  while caps have a much more dramatic output
curve which makes very different demand on the driven system.

But I think there's a lot of potential in using a combination.  GET BOTH.  It's the arfcom tradition anyway, right?
10/23/2017 11:09:13 PM EST
[#32]
As a guy who has studied lithium-ion battery technology for 9 years in college/grad school, and 6 years working for .gov, call me fucking skeptical.

The amount of data cherry picking and absolutely fucking terrible science in battery technology lead me away from research entirely.

I don't believe a single fucking thing that is written in these scientific journals.


As a side note, my latest patent/research article was cited by John Goodenough (the father of lithium-ion battery technology and national medal of science recipent) as a "major improvement".

Butt-fuck battery research. I'm that guy that insisted on having statistically significant results for every claim I make and having designed experiments to test every hypothesis and meanwhile some Chinese research group publishes one article where they got one result on one fucked up coin cell that they extrapolated to a full-sized car battery that they claim will cure the worlds ill-wills for electric cars.


fuck battery research

/rant



yeah. I'm drunk.
10/23/2017 11:11:31 PM EST
[#33]
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As a guy who has studied lithium-ion battery technology for 9 years in college/grad school, and 6 years working for .gov, call me fucking skeptical.

The amount of data cherry picking and absolutely fucking terrible science in battery technology lead me away from research entirely.

I don't believe a single fucking thing that is written in these scientific journals.


As a side note, my latest patent/research article was cited by John Goodenough (the father of lithium-ion battery technology and national medal of science recipent) as a "very encouraging result".

Butt-fuck battery research. I'm that guy that insisted on having statistically significant results for every claim I make and having designed experiments to test every hypothesis and meanwhile some Chinese research group publishes one article where they got one result on one fucked up coin cell that they extrapolated to a full-sized car battery that they claim will cure the worlds ill-wills for electric cars.


fuck battery research

/rant



yeah. I'm drunk.
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You and me against the world, mate. Fuck all these sober ass mofos.
10/23/2017 11:15:09 PM EST
[#34]
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As a guy who has studied lithium-ion battery technology for 9 years in college/grad school, and 6 years working for .gov, call me fucking skeptical.

The amount of data cherry picking and absolutely fucking terrible science in battery technology lead me away from research entirely.

I don't believe a single fucking thing that is written in these scientific journals.


As a side note, my latest patent/research article was cited by John Goodenough (the father of lithium-ion battery technology and national medal of science recipent) as a "major improvement".

Butt-fuck battery research. I'm that guy that insisted on having statistically significant results for every claim I make and having designed experiments to test every hypothesis and meanwhile some Chinese research group publishes one article where they got one result on one fucked up coin cell that they extrapolated to a full-sized car battery that they claim will cure the worlds ill-wills for electric cars.


fuck battery research

/rant



yeah. I'm drunk.
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True, same with solar "breakthroughs"
10/23/2017 11:21:51 PM EST
[#35]
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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.
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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.
This is correct.  My quick calculations of 12KWh output over three hours (required to deliver about 15 HP for highway driving, which is probably on the low side even for an eco car) is 360 KW of power delivered for 6 minutes!  In other words, 433 amps of 3-phase power at 480V.  None of the current US or Chinese standards will deliver this, it is immense.

Quoted:




Nope, it wouldn't. 480V x 3 phases x 20A = 28,800W, or 28kW, which would be easily extrapolated into kWh, as 28.8kWh in an HOUR of charging. Vehicles like the Chevy Bolt use ~60kWh to travel a bit more than 200 miles.

Such a circuit would take a little more than 2 hours to charge such a battery. See my previous post about this, it's gonna take a lot more than 20A on a three phase circuit to charge this bad boy!
The actual formula, in this case, is 480 X 1.73 X 20A, for a total of 16608.
10/23/2017 11:36:06 PM EST
[#36]
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In the event that electric car usage becomes wide spread, there will be no "off peak hours" but probably a change of peak hours.
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Why do people keep posting that crap? Has anyone even calculated the energy draw of 2 million EVs? Because that is less than 1% of the registered/titled vehicles. I do not care if you are talking off peak overnight hours, excluding the fact that there are industries that only run in those hours, that is a significant energy draw.


Which takes even more time to get approved and built than a new coal power plant.
In the event that electric car usage becomes wide spread, there will be no "off peak hours" but probably a change of peak hours.
Explain that to the blockhead who thinks there is enough electric grid right now to cover this. He also does not understand in places like CA the grid is already strained in the summer or not understand that the car shredders the US CBP/DHS/US Marshalls use in San Diego is restricted to night operations only because as the GM of the facility says "if we went online during daylight hours San Diego would lose power."
10/23/2017 11:42:28 PM EST
[#37]
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They want to Make American Great Again by making sure that the oil/automotive complex which has been responsible for 2/3s to 3/4s of our trade deficit for 40 years now keeps on going. Also hoping for an American company that is a global leader in an emerging industry to fail while cheering on it's foreign competition... It's the only way America can truly be great again.
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Couldn’t be because Tesla wastes billions of dollars of tax subsidies on a technology the market doesn’t want yet still manages to get to the verge of bankruptcy.  Couldn’t be because Tesla is just a horribly managed company that makes a pretty shitty product in terms of quality control, despite having an astronomical high price, which is mostly picked up by the taxpayers via subsidies just so fucking virtue signaling liberals like you can feel areodite and snuggly superior.  Couldn’t  be because electric cars are a darling of the envirowacko left and Musk is their poster boy and we are sick of their shit.  Couldn’t be because making and disposing of overpriced electric car batteries is actually extremely dirty and does far more damage to the environment than gasoline does.

No, it must be a conspiracy by the oil companies...

Welcome to my ignore list, you fucking libs make it so damned easy.
10/23/2017 11:49:51 PM EST
[#38]
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Couldn’t be because Tesla wastes billions of dollars of tax subsidies on a technology the market doesn’t want yet still manages to get to the verge of bankruptcy.  Couldn’t be because Tesla is just a horribly managed company that makes a pretty shitty product in terms of quality control, despite having an astronomical high price, which is mostly picked up by the taxpayers via subsidies just so fucking virtue signaling liberals like you can feel areodite and snuggly superior.  Couldn’t  be because electric cars are a darling of the envirowacko left and Musk is their poster boy and we are sick of their shit.  Couldn’t be because making and disposing of overpriced electric car batteries is actually extremely dirty and does far more damage to the environment than gasoline does.

No, it must be a conspiracy by the oil companies...

Welcome to my ignore list, you fucking line make it so damned easy.
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I agree with you totally, and the dude's username is a clue. It's spelled "erudite", though.
10/23/2017 11:53:34 PM EST
[#39]
Since "utopia" means "no place" which is basically the same as "nowhere", and the prefix "neo" means "new", then his username means "New Nowhere Man"
Living in his nowhere land.
Making all his nowhere plans for nobody.
La la la la.

@S_A_C
10/24/2017 12:52:06 AM EST
[#40]
6 minute charge time for a Tesla Model S, with the big battery:  Battery voltage is 375v, battery capacity is 85 kWhr, or 85,000 Whr.  

Charging amps would be 2267 Amps at 375 Volts, at 100% efficiency.  The 240 Volt circuit at the home would require 3542 Amps at 100% efficiency.  At 50% efficiency, half the Amps charging the car, half the amps heating the battery and charger, the 240 V circuit in the home would need to provide 7100 Amps.

For comparison, at 240 Volts, a clothes dryer draws about 13 Amps, a 4 element range all on high draws about 25 Amps and the oven another 13 Amps.  Run it all, on max power, and the home 240 Volt circuit needs to provide about 51 Amps.  51 Amps at 100% efficiency.  

Charging a Model S big battery in 6 minutes would require 139 times more Amps than running the dryer, all the stove elements and the stove oven at the same time.

Put another way, charging a Model S big battery in 6 minutes would use the same power as 139 homes, each home using close to maximum electrical power.

How many homes can provide this much power?  How many charging stations can do it?  How many electrical grids can supply this much power to each home that has a Model S?  

Talk is cheap but it takes money to buy whiskey.  It's easy to make stuff up, doing 9th grade math is harder.  But, sometimes 9 grade math is needed.  We just finished two terms of a President who could not add, subtract, multiply or divide, we don't need more babble from innumerate, silly people about nonsense stuff, like 10 C charge rates for big batteries.

Even iPhones have a built in calculator, and this isn't rocket science.
10/24/2017 1:12:35 AM EST
[#41]
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6 minute charge time for a Tesla Model S, with the big battery:  Battery voltage is 375v, battery capacity is 85 kWhr, or 85,000 Whr.  

Charging amps would be 2267 Amps at 375 Volts, at 100% efficiency.  The 240 Volt circuit at the home would require 3542 Amps at 100% efficiency.  At 50% efficiency, half the Amps charging the car, half the amps heating the battery and charger, the 240 V circuit in the home would need to provide 7100 Amps.

For comparison, at 240 Volts, a clothes dryer draws about 13 Amps, a 4 element range all on high draws about 25 Amps and the oven another 13 Amps.  Run it all, on max power, and the home 240 Volt circuit needs to provide about 51 Amps.  51 Amps at 100% efficiency.  

Charging a Model S big battery in 6 minutes would require 139 times more Amps than running the dryer, all the stove elements and the stove oven at the same time.

Put another way, charging a Model S big battery in 6 minutes would use the same power as 139 homes, each home using close to maximum electrical power.

How many homes can provide this much power?  How many charging stations can do it?  How many electrical grids can supply this much power to each home that has a Model S?  

Talk is cheap but it takes money to buy whiskey.  It's easy to make stuff up, doing 9th grade math is harder.  But, sometimes 9 grade math is needed.  We just finished two terms of a President who could not add, subtract, multiply or divide, we don't need more babble from innumerate, silly people about nonsense stuff, like 10 C charge rates for big batteries.

Even iPhones have a built in calculator, and this isn't rocket science.
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Like I said, you better call and up your service, have your local utility hang a bigger can, drop a much thicker piece of triplex for your mains, and you'll need a meter with one fuck of a lot more magic smoke in it.
#electricityislikemagic
#magicholesinthewall
#unicornfarts
#itscalledelectricaltheory
10/24/2017 1:15:36 AM EST
[#42]
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Quoted:
6 minute charge time for a Tesla Model S, with the big battery:  Battery voltage is 375v, battery capacity is 85 kWhr, or 85,000 Whr.  

Charging amps would be 2267 Amps at 375 Volts, at 100% efficiency.  The 240 Volt circuit at the home would require 3542 Amps at 100% efficiency.  At 50% efficiency, half the Amps charging the car, half the amps heating the battery and charger, the 240 V circuit in the home would need to provide 7100 Amps.

For comparison, at 240 Volts, a clothes dryer draws about 13 Amps, a 4 element range all on high draws about 25 Amps and the oven another 13 Amps.  Run it all, on max power, and the home 240 Volt circuit needs to provide about 51 Amps.  51 Amps at 100% efficiency.  

Charging a Model S big battery in 6 minutes would require 139 times more Amps than running the dryer, all the stove elements and the stove oven at the same time.

Put another way, charging a Model S big battery in 6 minutes would use the same power as 139 homes, each home using close to maximum electrical power.

How many homes can provide this much power?  How many charging stations can do it?  How many electrical grids can supply this much power to each home that has a Model S?  

Talk is cheap but it takes money to buy whiskey.  It's easy to make stuff up, doing 9th grade math is harder.  But, sometimes 9 grade math is needed.  We just finished two terms of a President who could not add, subtract, multiply or divide, we don't need more babble from innumerate, silly people about nonsense stuff, like 10 C charge rates for big batteries.

Even iPhones have a built in calculator, and this isn't rocket science.
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You're talking the electrical service of a good size manufacturing facility. 
10/24/2017 2:03:49 AM EST
[#43]
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Quoted:
You're talking the electrical service of a good size manufacturing facility. 
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Quoted:
Quoted:
6 minute charge time for a Tesla Model S, with the big battery:  Battery voltage is 375v, battery capacity is 85 kWhr, or 85,000 Whr.  

Charging amps would be 2267 Amps at 375 Volts, at 100% efficiency.  The 240 Volt circuit at the home would require 3542 Amps at 100% efficiency.  At 50% efficiency, half the Amps charging the car, half the amps heating the battery and charger, the 240 V circuit in the home would need to provide 7100 Amps.

For comparison, at 240 Volts, a clothes dryer draws about 13 Amps, a 4 element range all on high draws about 25 Amps and the oven another 13 Amps.  Run it all, on max power, and the home 240 Volt circuit needs to provide about 51 Amps.  51 Amps at 100% efficiency.  

Charging a Model S big battery in 6 minutes would require 139 times more Amps than running the dryer, all the stove elements and the stove oven at the same time.

Put another way, charging a Model S big battery in 6 minutes would use the same power as 139 homes, each home using close to maximum electrical power.

How many homes can provide this much power?  How many charging stations can do it?  How many electrical grids can supply this much power to each home that has a Model S?  

Talk is cheap but it takes money to buy whiskey.  It's easy to make stuff up, doing 9th grade math is harder.  But, sometimes 9 grade math is needed.  We just finished two terms of a President who could not add, subtract, multiply or divide, we don't need more babble from innumerate, silly people about nonsense stuff, like 10 C charge rates for big batteries.

Even iPhones have a built in calculator, and this isn't rocket science.
You're talking the electrical service of a good size manufacturing facility. 
For the people saying "Why not add solar panels", I did the math.   If all horizontal surfaces of a Tesla S, including windows, were recent generation photovoltaic solar cells,  it would only take 9,000 days to get a full charge, assuming no losses in conversion, and a sunny 12 hours per day.   So, if you're stranded, you'll be able to drive home 25 years from solar recharging!  

In other words, photovoltaic solar sucks, and wouldn't even power the stereos they put in Teslas.
10/24/2017 2:10:12 AM EST
[#44]
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 Shut Up and TAKE my money.
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If this is legit I may be interested in buying stocks. So they can shut up and TAKE my money.
10/24/2017 5:16:38 AM EST
[#45]
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Quoted:
This, better have a 3 phase plug in to transfer that much juice in 5 minutes.
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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.
This, better have a 3 phase plug in to transfer that much juice in 5 minutes.
115V 400Hz 3 phase AC rated to 90 KVA.

10/24/2017 5:23:59 AM EST
[#46]
I'm just an ME, not an EE; so go easy on me.

A battery that would power a car for 200 miles that can be charged in 6 minutes is awesome.  Where does the heat go in that 6 minutes of charging?  

Shall I hoist the flag?
10/24/2017 5:32:51 AM EST
[#47]
If that IS true.........WOW!!!
10/24/2017 5:41:21 AM EST
[#48]
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. 
10/24/2017 5:43:29 AM EST
[#49]
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Quoted:
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. 
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Well you could have a gas powered generator on hand..................that would somewhat alleviate that problem wouldn't it?
10/24/2017 5:50:53 AM EST
[#50]
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Quoted:
I hate electric cars, but that's a big deal.

Very cool.
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Electric cars are not the first thing I'm thinking of in terms of a longer lasting battery.  There are so many applications more important than an electric car IMO.  Think of the medical applications...that alone means quite a bit.
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