Extreme fast-charging EV batteries emerge

Via The Guardian:

Batteries capable of fully charging in five minutes have been produced in a factory for the first time, marking a significant step towards electric cars becoming as fast to charge as filling up petrol or diesel vehicles.

Electric vehicles are a vital part of action to tackle the climate crisis but running out of charge during a journey is a worry for drivers. The new lithium-ion batteries were developed by the Israeli company StoreDot and manufactured by Eve Energy in China on standard production lines.

StoreDot has already demonstrated its “extreme fast-charging” battery in phones, drones and scooters and the 1,000 batteries it has now produced are to showcase its technology to carmakers and other companies. Daimler, BP, Samsung and TDK have all invested in StoreDot, which has raised $130m to date and was named a Bloomberg New Energy Finance Pioneer in 2020.

The batteries can be fully charged in five minutes but this would require much higher-powered chargers than used today. Using available charging infrastructure, StoreDot is aiming to deliver 100 miles of charge to a car battery in five minutes in 2025.

“The number one barrier to the adoption of electric vehicles is no longer cost, it is range anxiety,” said Doron Myersdorf, CEO of StoreDot. “You’re either afraid that you’re going to get stuck on the highway or you’re going to need to sit in a charging station for two hours. But if the experience of the driver is exactly like fuelling [a petrol car], this whole anxiety goes away.”

“A five-minute charging lithium-ion battery was considered to be impossible,” he said. “But we are not releasing a lab prototype, we are releasing engineering samples from a mass production line. This demonstrates it is feasible and it’s commercially ready.”

The important thing to remember with the EV rollout is that it will be slow at first but once past a certain tipping point it will parabolic. It will be in the coming cycle.

David Llewellyn-Smith
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  1. ““The number one barrier to the adoption of electric vehicles is no longer cost, it is range anxiety,””
    Pretty sure it still is cost. And will be even moreso in the second hand market as batteries approach end of life.

    • pyjamasbeforechristMEMBER

      Indeed dismissing the cost as a barrier in thier statement is telling that they cant compete

      Capacitors can already charge much faster then them but we don’t have capacitor cars for good reason, the energy density and cost don’t work

      Meanwhile Tesla have started mass mass production of thier new battery – https://youtu.be/zB8_HbrxUi8

      I also think QuantumScape have actually got something to watch (as do Toyota I think)

      It also appears Apple might have solved a few of Lithium Titinate’s draw backs (efficiency losses, energy density, cost) while maintaining its benefits (fast charge and much safer inherently)

      • The oft used argument by many commentators that battery costs are the primary reason why EVs are currently so expensive implies, therefore, that the average sales price for a EV will be cheaper than the equivalent combustion engine vehicle in three to four years’ time as prices continually drop. This, however, fails the simple Empirical test; for example, using historical prices published by JATO (2019), the retail price in 2012 of a Renault Zoe has, in fact, increased 18% to €26.6k (€32.6k without the Government subsidy) in 2020. The Nissan Leaf in the US was priced at $33.7k (2011), has managed a modest decrease of 6% to $31.6k (40kWh model, before state taxes) by 2020. Although more difficult to compare like-for-like, the Tesla Model S managed a small 3% increase over its model life to $80k from 2014 to 2020.

        According to JATO (2019), EV sales prices in Developed Nations have increased on average 42%-55% over the past eight years, hence the conundrum, when you realise that over the same period Chinese BEV prices halved! (they used to be very expensive, more so than in the West) Although this is difficult to compare like for like, whilst there is substantial government support in the form of subsidies to auto firms as well as consumer subsidies from both central and local government. The rationale for this discrepancy being that Western manufacturers have focussed on more premium offerings owing to demand for luxurious interiors and more sustainably sourced materials, leaving fewer entry-level possibilities. There is some evidence backing this argument, but if this trend were to continue, then it is unlikely that future EV prices would be any more financially accessible for the average consumer than at present .

        • These battery shortcomings are always subject to advancements in technology, more recently, US researchers claim that development using thermally modulated (working temperature ~60 °C) lithium iron phosphate (LFP) could allow 10-minute recharge times, in all climates [Yang, XG., Liu, T. & Wang, CY (2021) “Thermally modulated lithium iron phosphate batteries for mass-market electric vehicles”. Nat Energy. https://doi.org/10.1038/s41560-020-00757-7%5D. Problem with the type of battery and why researchers have ignored it for so long is that it has a very low energy density relative to others.

        • “that the average sales price for a EV will be cheaper than the equivalent combustion engine vehicle in three to four years’ time as prices continually drop. This, however, fails the simple Empirical test;”
          They fail this test because lithium batteries are now a mature tech and not falling in prices at anywhere near the rate claimed by all the ev’s will be cheap soon crowd.

    • Yeah not wrong there. I bought my current car 4 years ago for $3k used. When EVs get down to that priced on the used market with decent battery life, I’ll consider one then.

      • They probably won’t. Battery life is always going to be limited. Until the battery cost is an insignificant portion of the total cost of the car, a 20 year life for an EV is a pipe dream.

        • Looks like I’m on ICE forever then. Or at least till cars drive themselves and I no longer have to own one because these cars will be like cheap taxi service running around the clock.

        • Data from existing EVs would suggest battery lives of 200-300,000km with reasonable levels of degradation (10-20%).

          The typical car does ~10-15,000km/yr.

          Practical EV lifespan with today’s technology and typical usage should easily see 15 years, and 20 years is certainly not out of the question.

          • wonderful, we have 3 of 4 cars here with well over 300,000 k and still running fine on original drive trains.
            Also time degrades lithium batteries as well as usage

          • @ bjs

            It all depends on depth of discharge per cycle.
            Batts can have as many as 10000 recharge cycles but as little as 2000, the difference being up to 10% discharge per cycle and 100% discharge each time.
            EV are unlikely to have less than 50% discharge per cycle.
            This is for batts to reach 70% ish capacity, hence projections of their long life. Problem isnthat after 70% capacity batts coild last another 2000 cycles or just 2 cycles…

    • Christopher Kennett

      Cost is only a factor because fossil-fueled cars can dump their pollution into the atmosphere for free.

    • David WilsonMEMBER

      Another huge issue is that a massive increase in power infrastructure will be required as fast charges chew up very high amounts of energy very quickly that our grid systems are not built or designed for.
      I still keep asking … why is everybody including the greens ignoring the fact that massive areas of solar panels destroy our landscape, farm and cropping lands along with forest areas and the well know fact that solar panel have have a very high impact on global warming as they heat the atmosphere around them and lets not forget unbelievably large battery backup systems will be needed to smooth out energy supply … cant see anything good here that is going to save the planet…. Lets not forget solar and batteries last 10-20 years whilst nuclear power stations have an 80 year life span.. or is that truth a problem.

  2. The only way you get stuck at a charging station for 2 hours is if the chargers are all faulty or all being used. I have had to sit at the petrol station for 30 minutes waiting for it to clear, only to find the diesel pump is out of order and had to go elsewhere…

    A Mate drives his Model 3 between Canberra and Foster, the trip takes just as long as it used to when he drove his Amarok. The key difference is when he stops he plugs in then goes to the bathroom and gets food etc… instead of filling up then doing those things…..

  3. Not every household has off street parking (me included). For mine – solar is an interesting option (eg. Lightyear One car).

    But a hybrid solar / EV might also be interesting.

  4. I guess Eve Energy in China will have the IP and start making their own in the not too distant.

    • Yes, I literally LOLd when I read that, they won’t benefit from their world leading tech, just like we didn’t from solar panels. (China achieved a record FDI list year)

  5. “The number one barrier to the adoption of electric vehicles is no longer cost, it is range anxiety,” said Doron Myersdorf, CEO of StoreDot.

    I’d challenge that. The majority of drivers would not exceed the range of typical EVs in any remotely normal usage.

    Meanwhile there’s a multitude of cheap cars for sale at half the cost of the cheapest EVs.

  6. I’m no expert, but I love articles like this. People can’t be trusted to do the right thing. Maybe science & tech can do it.

  7. via slashdot:
    “Range anxiety, the fear of running out of power before being able to recharge an electric vehicle, may be a thing of the past, according to a team of Penn State engineers who are looking at lithium iron phosphate batteries that have a range of 250 miles with the ability to charge in 10 minutes. “We developed a pretty clever battery for mass-market electric vehicles with cost parity with combustion engine vehicles,” said Chao-Yang Wang, William E. Diefenderfer Chair of mechanical engineering, professor of chemical engineering and professor of materials science and engineering, and director of the Electrochemical Engine Center at Penn State. “There is no more range anxiety and this battery is affordable.” The researchers also say that the battery should be good for 2 million miles in its lifetime.

    They report today (Jan. 18) in Nature Energy that the key to long-life and rapid recharging is the battery’s ability to quickly heat up to 140 degrees Fahrenheit, for charge and discharge, and then cool down when the battery is not working. The battery uses a self-heating approach previously developed in Wang’s center. The self-heating battery uses a thin nickel foil with one end attached to the negative terminal and the other extending outside the cell to create a third terminal. Once electrons flow it rapidly heats up the nickel foil through resistance heating and warm the inside of the battery. Once the battery’s internal temperature is 140 degrees F, the switch opens and the battery is ready for rapid charge or discharge. […] Because of the self-heating, the researchers said they do not have to worry about uneven deposition of lithium on the anode, which can cause lithium spikes that are dangerous.”

  8. My issue is I have nowhere to charge it as I have no off-street parking. Most people I know are in the same situation.
    Until charging stations roll out and become close by I simply cannot buy an EV even though I would like to.

    • Diogenes the CynicMEMBER

      Inner city I get it. But suburbs with garages like Perth – crikey at least half and probably more like >70% of households could charge their EV off street.

  9. SnappedUpSavvyMEMBER

    its not that amazing: StoreDot is aiming to deliver 100 miles of charge to a car battery in five minutes in 2025.

    2021 and in 5 minutes i add 650kms of range at the servo

  10. These developments don’t change the facts that (1) these batteries still require electricity to be generated elsewhere before they can be charged and (2) the efficiency cannot be as high as 100%, so they require extra electricity to be generated elsewhere.

  11. Are there any studies that have looked at battery use across the different electric vehicles over a period of time? That would give the best picture of how long they are lasting for, how they are generally used, and any trends in the improvement of the tech over the years.

  12. The only thing holding back adoption of EVs today is that there’s not enough manufacturing capacity to meet demand.
    Our Tesla adds around 80 miles of range in five minutes at the newer 250kW Superchargers, but rarely need to use them since we just plug it in when we get home and it charges overnight on off-peak so every day you start with a full charge just like with your phone.
    Superchargers are for road trips and people who have to park in the street. Lots of places we visit have complimentary chargers available as well.

    • +1 people don’t fully comprehend how much overall time is saved having a full charge every day and by almost never going more than 400km+ in a single day the occasional 10-15min wait is no big deal.

  13. BarratuesdaiMEMBER

    “…this would require much higher-powered chargers than used today. ”
    Are we going nuclear; or just burning much more coal to “save” the environment in a multinational corporation friendly way?

  14. Jumping jack flash

    I really do love the idea of EV. I will certainly be setting up off grid electricity in my home with the goal of energy independence within 5 years. EV is a part of that, but the question i ask everyone is “will it tow my caravan?”.

    Nobody wants to answer.

  15. Tassie TomMEMBER

    Three short comments (I apologise if I’ve repeated a comment from above):

    1) When I get an EV (I’ve got my name down for a tri-engine Cybertruck) I’ll never need to use a public charger. Speed of charging won’t matter – 2.4kW at home will be plenty.

    2) It will be good for electric trucks though. Will require significant infrastructure upgrades, but this will happen.

    3) When EV penetration rises past the tipping point (some say 5%, others use the 10-90 rule) the rise will not be “parabolic” – it will be “sigmoid”.