StoreDot Shows EV Battery That Charges In 5 Minutes – videos

JUN 25 2017 BY MARK KANE 48

Israeli startup StoreDot, have been promising a revolutionary battery that is both energy dense and quick rechargeable over the past few years.

StoreDot

But now, the company has shown off a prototope that apparently can be recharged in 5 minutes (see video from CUBE Tech Fair in Berlin).

At the same time, the energy density is said to provide enough power up to 300 miles of range from the quick re-fill.

The technology was hinted all over in 2015, and in 2016 for smartphones (see videos below); but as we know, it’s hard to find any battery offerings promising a 5 minute charge on the market today.

The first EVs with StoreDot batteries could be delivered within three years according to press release.

Press blast:

First Time Ever: StoreDot Demos The Battery That Can Charge an Electric Vehicle In Just 5 Minutes

The First Ever Demo of StoreDot’s FlashBattery Technology for EVs Will Be Shown on stage at CUBE’s TechFair in Berlin. By The Time You Finish Reading This Release, Your Car Could Have Been Fully Charged

Tel Aviv, May 11th, 2017- StoreDot, the nanotechnology materials pioneer known for its super-fast battery charging technology, will showcase its ultra-fast-charge five minute car battery today on stage at CUBE Tech Fair in Berlin. StoreDot’s FlashBattery technology will make charging any electric car as quick and efficient as filling gas tank, as it only takes five minutes to reach a full charge that can keep the car going for 300 miles. While competitors seek to solve the problem of increasing the mileage per charge, StoreDot is focusing on fast-charging electric vehicles in just minutes, a solution all drivers can relate to.

After announcing the plan to bring StoreDot’s unique ultra-fast-charging solutions to the auto industry during Microsoft’s Think Next event, the company is excited to present live on stage in Berlin the first proof of concept of how its new organic compounds combined with the nano-materials will be implemented in cars. StoreDot’s new batteries are currently in advanced stages of development, and can be expected to be integrated into electric vehicles that will hit markets in the next three years.

StoreDot’s FlashBattery technology is a combination of gradient layers of nano materials and proprietary organic compounds. The FlashBattery avoids the common use of graphite in Li-ion battery’s cells. While Graphite is a material that is unable to sustain fast charging power, StoreDot’s proprietary chemical compound is not flammable and has a higher temperature of combustion, which dramatically reduces the resistance of the battery cell and thus increases its safety.

“Fast Charging is the critical missing link needed to make electric vehicles ubiquitous,” Says Dr. Doron Myersdorf, Co-Founder and CEO of StoreDot. “The currently available battery technology dictates long charging times which makes the EV form of transportation inadequate for the public at large. We’re exploring options with a few strategic partners in the auto space to help us boost the production process in Asia and reach mass production as soon as possible.”

Earlier videos about phone battery charging from 2015 and 2016:

source: Engadget via StoreDot

Categories: Battery Tech

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48 Comments on "StoreDot Shows EV Battery That Charges In 5 Minutes – videos"

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SJC

Stacking prismatic cells can reduce space a weight with the technology we have today.

Jelloslug

You could probably build in the cooling passage right into the cell also.

Someone out there

“300 miles of range” just depends on how many cells you are using so that claim in itself is meaningless. If you can charge one cell in 5 minutes you can charge 20 cells in 5 minutes.

I would like some more technical information though. It sounds like a scam so far, big words but very little content.

Anonymous

Does the car need to be submerged in liquid nitrogen to keep it from catching on fire? Not a serious question, but cooling is going to be…challenging.

300 miles of range means they’re adding on the order of 75kwh in 5 minutes. So the car is hooked up to a 900kw power source. Assuming 95% efficiency, it’s going to be throwing off 45kw of heat. Think of a kw as the output of a large space heater. Now imagine 45 of them packed into the undercarriage of a car.

Denis

The charging cable is going to have a coolant conduits and through the onboard heat exchager, remove excessive heat from the car. The heat exchanger would couple the internal coolant loop with external one, without the risk of contamination of internal coolant. Tesla actually has a patent describing this technology.

Alaa

Yet another battery story! I some how do not believe in these stories anymore.

J

That’s right. It is probably another IPO scheme.

R.S

Nano technology and organic?

It sounds interesting, but I hate those types of “information videos”.

unlucky

Without any information as to longevity and energy density this means nothing at all.

You can make a very fast charging pack by simply derating the cells inside. This reduces the energy density, a huge downside.

Current cells are created for a balance between longevity, energy density and charge rate (power density, roughly). Just stating this pack has improved one aspect without mentioning the others tells us nothing at all.

Stimpacker

Yup, I can fast charge in 5mins a Hobby King RC Lipo battery. It just won’t last for many cycles.

Which means there should be a required standard for presentation of such ‘Pitches’, so that all the needed known parameters are presented.

So, that basically should cover: Individual cell dimensions, weight, storage capacity (Ah), Voltage, Cycle Life @ Both an array of Temperatures and also at Various ‘C’ Rates (Temperatures from -40 to +50 C, and C-Rates from 0.5 to 60 C – if they want 1 minute charging values).

That would be the best presentation, and they could add volumetric and powermetrics numbers, too.

Driverguy01

You nailed it! But your calculations are for a linear charge. Todays batterie charging is not linear, it tappers in the last 20% so that probably means you need a 1200kw power source at the beginning of the charge. We are going to need Zeus! I’m not sure but i think that the BMS and cooling system might just cost more than the battery itself to get to those kinds of power rate. But Musk said 350kw charging is for a kid’s toy so, he must know something i don’t. I’m not sure i would pay the extra cost for such a system i would very rarely need but i know some will and that’s a good enough reason to go ahead with the research to reach that goal.

Joe

The car’s BMS is bypassed when supercharging.

Joe

Never mind my last comment I was thinking of the onboard charger being bypassed

Assaf

Hahahaha….

Israeli start up? Will revolutionize the entire EV world, with nothing else even coming close???

Wow, sounds familiar, but I scratch my head and wonder where I’ve heard all this before…

[disclaimer: I’m Israeli]

Chris O

ETVenergy comes to mind. Never heard of them again.

szryxl

Better Place comes to my mind. An israeli company who supplied batteries in 2012 for Renault Fluence ZE and went bankrupt in 2014. They were “revolutionizing” the ev market with their cattery change stations.

wavelet

Better Place had lots of issues, but it wasn’t at all a battery company or technology company, nor were the battery swap stations a significant feature of their scheme — they were intended to be a temporary solution until BEV range caught up.

unlucky

Nearly everything comes to mind for me.

I saw a facetious comment once: “hype level: Israeli tech startup”. Pretty much said it all for me. Not to say Israeli tech startups never produce anything, but the preponderance of hype for them usually far exceeds the expected level of success.

Assaf

Been there, (my bosses) done that 🙂

Scott Franco

“StoreDot’s FlashBattery technology is a combination of gradient layers of nano materials and proprietary organic compounds. ”

Might one of the organic compounds be Bulls***????

Q

Quick, patent the idea!!

But equally seriously, not, the thing won’t fly. The problem with organic compounds is their instability in high temperatures, which definitely will occur, at least locally, while charging.
Low ionic conductivity is another issue.

In the past I had enough to deal with Israeli startups in the energy sector to smell the rat.
Just switch the CEO name’s first letters and the secret is revealed!

Chris O

From what I could find this company plus partner Samsung are still trying to figure out how to actually mass produce these batteries.

Within all the right parameters of course like cost, energy density, longevity, safety.

So far delivery deadlines came and went so we’ll see….or not.

cab

They are right that charge time is still a big issue (for longer distance travel), but I question whether the whole “5 minutes” target (i.e. as quick as a gas refill) is really necessary given the challenges of Infrastructure that will go along with it. Of course, that begs the question – “What is the magic numbers for X miles in Y minutes”? I tend to think the value for miles is “300”, but I’m not sure what the value needs to be for “minutes”.

The flipside to my argument is: those folks w/o at home charging (i.e. apartment dwellers, etc.). This kind of charge speed opens the EV door for a whole new group of folks (beyond the few die hards who put up with away from home charging for all their charging today).

Pushmi-Pullyu
“‘What is the magic numbers for X miles in Y minutes’? I tend to think the value for miles is ‘300’, but I’m not sure what the value needs to be for ‘minutes’.” That’s something the market will have to choose. Decreasing charging time will drive up costs of building EV chargers (and providing them with power) on an exponential basis; that is, each reduction by 1 minute in the time it takes for a full charge (or an 80% charge) will cost more than the last 1 minute reduction. But the competitive benefit from faster charging will be a linear benefit. The “sweet spot” will be where decreasing the time by yet another minute costs more than customers will be willing to pay for 1 minute less wait time. Tesla says it wants to get charge times down to 5-10 minutes. It seems reasonable to me to believe that competition and the market will drive down charging times to 10 minutes, or possibly slightly less. Below that, the benefit seems questionable to me. Given that most charging will be slow charging at home or at work, most fast-charging will be on the road, where drivers will likely want to… Read more »
Asak

I think 10 minutes is probably short enough, maybe even 15 or 20. Even 30 might be viable.

Stopping at a gas station probably requires a minimum of 5 minutes, but that short duration is required due to the constant need to refuel. On the road if you use the bathroom and clean your window you’re already probably pushing 15 minutes. If you stop to eat at the same time then it’s 30 minutes easily.

Pushmi-Pullyu
“The flipside to my argument is: those folks w/o at home charging (i.e. apartment dwellers, etc.). This kind of charge speed opens the EV door for a whole new group of folks (beyond the few die hards who put up with away from home charging for all their charging today).” Isn’t that like arguing that during the motorcar revolution of the 1910s-1920s, the lack of places to park motorcars in cities would be handled by hiring lots of valets to whisk cars away to empty lots or pastures outside the city? Nope. The lack of EV chargers for apartment dwellers will be met by installing EV slow charge points in parking lots and public parking spaces everywhere, just like the rising need for places to park motorcars during that previous tech revolution was met by building lots of parking lots, and using parking lanes at the side of the streets, in cities. The increasing adoption of EVs is going to put increasing pressure on apartment building landlords, and municipalities, to cater to EV owners. During my lifetime, we’ve seen the idea that apartment owners could be provided with cable TV hookups go from unimaginable that the landlord would provide the… Read more »
Celestar

I tend to think the 300 miles as a good target, but that for me that means at 90 mph and in the winter, so we are probably looking at 200kW. For the “Minutes” 5 Minutes is not bad, since neither home and destination charging is an option for many.

Mr. M

90mph means 30-40kWh/100km (48-64kWh/100miles)
normal Winter 2kWh/100km
Extreme Winter 6kWh/100km

So 300 miles would need between 150 and 220kWh.

Bill Howland

Assuming 75 kwh (as one commenter figured it would take) for 5 minutes – that would be 900 kw rate into the battery alone. Lets say another 100 kw is needed for the battery charger, and another 100 kw is needed to run the refrigeration system to keep the battery from getting too smoking hot during the 5 minutes. So thats 1100 kw.

If EV’s never get popular, then maybe. But if a “Juice Station” gets as popular as your typical “gasoline station” where there is a constant flow of customers to too few ‘pumps’, then dump batteries in the back room won’t help much.

Of course, depending on the cost (I’d assume auch a station would have to make a half-hearted attempt to at least break even), I keep asking who is going to use the station considering the price that will have to be paid, by someone, presumably the customer as is the case with the gas stations currently.

As other commenters have said, there are tons of articles of the the next ‘miracle battery’, but its getting to the point of these up and coming battery startups are truly best at Crying Wolf.

Nick

100 kw cooling system? LOL. The demo cell was air cooled and was shown rising from 25 -> 35 degrees. The whole key to super rapid charging is dropping the internal resistance to ~0. Looks like they got it done. The real questions are: Cycle life?, Calendar life?, Self discharge rate?, Energy density (gravimetric and volumetric), and manufacturability?.

Also, you can charge the car at an arbitrary rate using a dump pack. You then only need to provide average power and not peak.

unlucky

If the charger is frequently used then the average power rises to essentially the same as the peak power.

I don’t think you can go by what their demo does to determine what a car pack would do. A larger pack will need to be liquid cooled. You can say you have to get the pack impedance to ~0, but at 900kW ~0 can easily be not close enough to 0 to use air cooling.

Also having seen how the LEAF worked with repeated fast charging and no cooling, I’m going to demand liquid cooling anyway. The LEAF pack would get warm during DCFC and not rid itself of the heat in the time it takes to drive to the next charger. Each additional charge during the day would add about 2 bars to the pack temperature. And thus the charging rate would drop with each consecutive charge during the day.

Pushmi-Pullyu

“You can say you have to get the pack impedance to ~0, but at 900kW ~0 can easily be not close enough to 0 to use air cooling.”

Lots of high voltage or high current systems draw that much power. For example, a large commercial building. Such wiring doesn’t need super-fancy cryogenic cooling. It’s merely a matter of using wiring or cables with sufficiently large gauge to carry the current without significant heating.

* * * * *

About the photo linked below:

…the world’s first all-electric car ferry… recharges its dual 450 kW/hour battery packs after each docking in less 10 minutes…

Do you think this charging system uses cryogenic cooling for either the charger or the battery packs? I think not!

Full article:

http://www.maritime-executive.com/article/worlds-first-electrical-car-ferry-in-operation

Bill Howland

Nick ” you need only provide average power not peak power “.

My 900 kw figure was an AVERAGE power rate for the 5 minutes. That is the theoretical MINIMUM AVERAGE necessary to charge a 75 kwh useable capacity battery in 5 minutes.

Nick

Right, I’m taking average over time.

900kw for 5 mins is only 75kw over an hour. So if you need to charge one car an hour, you need 75 kw continuous to charge your dump pack. This allows you to scale your grid connection with your demand.

Bill Howland

Wrong. That assumes 100% efficiency everywhere. And that no one will ever use the thing.

The only thing that is remotely similar to this ‘paper construct’ is the Tesla Supercharger. Go to one of those and see all the billows of heat that come out of the supercharger bay, and then at the car itself.

I’ll believe it when I see it. So please buy a few 100 kwh of these things and show me how little waste heat there is.

Pushmi-Pullyu

I am assuming superfast charging (10 minutes or less) won’t happen until they start using EV batteries that don’t significantly heat up when charging that fast. The idea that every public EV charger would have to be equipped with cryogenic equipment to keep both the charging cable and the battery pack from overheating… well, the cost of that would be prohibitive, even if the engineering obstacles could be solved for making a practical system to pump liquid nitrogen (or whatever) into the battery pack of every car that needs charging.

We have already seen laboratory demos of batteries with sufficiently low resistance not to overheat while superfast charging. No magic is needed here. We just need for that tech to be commercialized and mass produced.

Nick

Exactly, I agree completely PP.

This is “just” a battery with extremely low internal resistance.

Wally

In 2014 Storedot gave a presentation about Think Next talking about their amazing tech, they came back in 2015 touting their tech that was 3 years away.

Here we are 3 years later (from 2014) and Storedot is still talking about something being 3 years away.

3 years is the magic time frame where brilliant new tech is indistinguishable from pie in the sky new tech.

We don’t need 5 minute car recharges because 90% of recharging will be done at home or at work and L2 charging is perfectly adequate.

Long distance driving is a small percentage of charging and there taking a 20 minute break every 3-4 hours of driving is perfectly adequate. That only requires something already being proposed, 350kW DCFC stations.

EVs aren’t gas cars, we don’t need to have EV stations like gas stations where you stop in once a week for a 5 minute fill-up.

That’s as dumb as people suggesting we haul trailers behind EVs with generators on them for longer trips. Go rent a gas car if you want to drive 500 miles and don’t own a Tesla.

Mary Lamb

From 2014 article:

StoreDot’s prototype device is far from ready – right now it’s too bulky and awkward to be a viable product – the team has predicted that it will be ready for commercialisation by late 2016. They expect a slim, smartphone-friendly iteration to be on the market by early 2017, and it will be able to pump your phone with a day’s worth of energy within seconds.

Well here we are in 2017 and to nobody’s surprise, no new cell phone battery. So I guess that bit of hype is no replaced with new hype about charging cars in 5 minutes. Also to be ready in 3 years.

At which point I’m sure they’ll squeeze the snake for more oil to peddle.

Nick

I have a cell phone battery which will charge to 80% in 15 mins. Seems like that’s pretty much state of the art in the cell phone battery world.

Big Show

Driverguy: “you need a 1200kw power source at the beginning of the charge. We are going to need Zeus!”

1.21 Gigawatts? Great Scott!

Pushmi-Pullyu
Even in the unlikely event that all these claims are true, there likely will still be serious obstacles to mass production. What is the longevity of such battery cells? Can they be cycled 2000 times and still retain at least 80% of original capacity? What is the cost of making such cells? Can they be made cost-competitive with batteries used in EVs today? “StoreDot’s FlashBattery technology is a combination of gradient layers of nano materials and proprietary organic compounds.” Sounds expensive. “…StoreDot’s proprietary chemical compound is not flammable and has a higher temperature of combustion, which dramatically reduces the resistance of the battery cell and thus increases its safety.” That reads like complete B.S. Molten salt batteries run at a much higher temperature than li-ion cells, and obviously have a higher ignition temperature. That doesn’t mean they have dramatically lower resistance! Batteries with dramatically lower resistance than those in use in EVs today won’t significantly heat up when charging. They won’t need a higher combustion temperature! These days, claims like this one are seen every few weeks, or even more often. While we can hope that this startup will produce the Holy Grail of EV batteries, the odds don’t appear… Read more »
AlphaEdge

And never to be heard from again!

Dick Duffy

EV activists/fans should realize that all of the barriers to charging, etc have been faced by the alternative fuels business for several decades. As a CNG veteran, I believe you’ll find that vehicle buyers want transparency in convenience, refueling, and performance equal to petroleum. I may have drawn the wrong conclusions, but in my 30 years of selling CNG technology, if your propulsion technology doesn’t satisay all three requirements mass adoption will be an uphill fight. Just for fun, what do you think of CNG/electric hybrids?

Bill Howland

So what happened to that $500 home refueler that Whirlpool or GE were developing? I don’t want any unreliable $6000 PHILL unit – especially since now I’d have to send to Italy for parts as opposed to Toronto.

bbock

How would this not blow out the batteries? That’s a LOT of energy transfer in a short period of time. Assume the battery isn’t bulls*** (which seems suspect), how do you get that much power to it? HUGE capacitor? Because I don’t think you are going to get that much power off the grid in 5 seconds.

bbock

I wonder what the battery longevity would be on this thing. I can only imagine the challenges of keeping the battery cool as 60 kWh (Bolt EV) or 100 kWh (top Tesla battery) surges into it in five seconds. How does it hold up in weather conditions and would it meet the warranty needs of car makers? And what is the size and weight compared to the other cars’ battery pack?