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posted by on Wednesday January 11 2017, @02:15PM   Printer-friendly
from the cars-start-on-fire-all-the-time-anyway dept.

Samsung has announced a new battery cell for electric vehicles that could enable 20 minute fast charging. The company plans to get that time down to 5 to 10 minutes:

Samsung's SDI battery subsidiary announced a new battery cell designed for use in electric vehicles that offers improved density to manage a max range of up to 372 miles on a full charge, with a quick charge capacity that will help it regain 310 miles or so of charge on just 20 minutes of charging. Unveiled at the North American International Auto Show for the first time, the new battery tech come with a 10 percent decrease in the number of units and weight required vs. current production battery units made by Samsung SDI.

Mass production isn't set to begin until 2021, but the tech should arrive in time to supply the first crop of autonomous cars, which are also targeting street dates sometime within that year from a range of manufacturers. EV and self-driving are tied closely to one another, since both are crucial components for operating the kind of on-demand ride-sharing fleets planned by Ford, among others.

Also at Engadget. Press release at Business Wire.

Samsung's SDI division is the same company that made the batteries used in the Galaxy Note 7 as well as the upcoming Galaxy S8. Samsung will reportedly reveal the cause of the Galaxy Note 7 overheating issues later this month, but the batteries are not expected to be the culprit.


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  • (Score: 1, Troll) by VLM on Wednesday January 11 2017, @02:30PM

    by VLM (445) on Wednesday January 11 2017, @02:30PM (#452504)

    Its going to be interesting watching range anxiety smash into cheapness and performance.

    I'd be pretty happy with 40 miles range for 10% of the cost, since most of the money in EVs is in the battery, I'll LOL all the way to the bank with my 40 mile EV and $90K in the bank. $90K in the bank means when I need to travel 1000 miles its by helicopter to the airport and private jet and still have money left over, not driving myself like a peasant. Also most of the mass of an EV is in the battery so when I drop the hammer the anxious people will be left in the dust while I go 0-60 in like 1 second.

    Americans are also legendarily cheap, and will buy absolute shit as long as its 5% cheaper at walmart or the stealership, so the result of 300 mile cars is going to be cheaper short range cars, in the marketplace on average nobody going to sell 300 mile cars if it costs more than an extra $1000 or so. You can go 300 miles instead of 200 miles but its gonna cost you $30K and increase your 0-60 times by 50% and your commute is 20 miles ... how many people will go for it?

    • (Score: 1, Interesting) by Anonymous Coward on Wednesday January 11 2017, @02:53PM

      by Anonymous Coward on Wednesday January 11 2017, @02:53PM (#452511)

      As usual, there is something wrong with your numbers, at least as it currently plays out in the market. The current short range EVs like the Leaf don't have nearly the acceleration capability of the long range Tesla models. Partly it's because the Teslas have bigger motors (which cost $$$) and I think partly because if the Leaf was somehow re-engineered for 3 second 0-60 mph times, you might get a couple of these blasts before the nominal 80 mile range battery was flat.

      Now, for a calculation I'd like to see: What sort of power source is required for a 310 mile quick charge in 20 minutes. And who pays for the refrigeration bill to keep the batteries from melting during this massive energy transfer?

      If the power can come out at 1000hp (~.76 MWatts) for the quick acceleration dash, can it go in as fast? And for how long (hopefully a little longer than 3 seconds). Who has a plug with a significant fraction of a Megawatt available--this is starting to sound like direct connect to a generating station.

      • (Score: 2) by Whoever on Wednesday January 11 2017, @03:26PM

        by Whoever (4524) on Wednesday January 11 2017, @03:26PM (#452523) Journal

        Now, for a calculation I'd like to see: What sort of power source is required for a 310 mile quick charge in 20 minutes.

        Figure on 3-4kWh per mile (probably Samsung is using 4). 310 miles is thus 77.5kWh. To deliver 77.5kWh in 20 minutes requires 232kW.

        • (Score: 2) by Whoever on Wednesday January 11 2017, @03:38PM

          by Whoever (4524) on Wednesday January 11 2017, @03:38PM (#452529) Journal

          Whoops: that should be 3-4 miles per kWh.

        • (Score: 2) by ledow on Wednesday January 11 2017, @09:17PM

          by ledow (5567) on Wednesday January 11 2017, @09:17PM (#452702) Homepage

          250kW after conversion losses.

          Call it 100A. That's an entire households maximum fuse where I come from. And many places have significantly less.

          You're not only talking specialised charger, you're talking an entire single-phase feed just for that. That's not gonna add up for someone who's bought a house and spent that much on this case, to get an entirely new feed just for an occasional quick charge.

          And it's not going to add up for chargers in stations / public places either.

          • (Score: 2) by ledow on Wednesday January 11 2017, @09:17PM

            by ledow (5567) on Wednesday January 11 2017, @09:17PM (#452703) Homepage

            100A @ 250V obviously.

            That's over 200A in the US, for example.

            • (Score: 2) by Scruffy Beard 2 on Thursday January 12 2017, @12:34AM

              by Scruffy Beard 2 (6030) on Thursday January 12 2017, @12:34AM (#452788)

              North American houses have 240V available for high-drain appliances. (split single phase with opposing 120V circuits)

            • (Score: 0) by Anonymous Coward on Thursday January 12 2017, @10:19AM

              by Anonymous Coward on Thursday January 12 2017, @10:19AM (#452901)

              100A@250V is 25KW. While the parent was mentioning 250KW.

              Charge rate will have something to do with this if you are talking KWH. 25KW over 10Hours is 250KWH.

          • (Score: 2) by Whoever on Thursday January 12 2017, @02:34AM

            by Whoever (4524) on Thursday January 12 2017, @02:34AM (#452819) Journal

            250kW after conversion losses.

            Call it 100A. That's an entire households maximum fuse where I come from. And many places have significantly less.

            Math fail! You are an order of magnitude out. It's 1000A @ 250V.

            People don't need a 30 minute charger at home. A regular level2 charger provides about 20 mph of charging, so 200 miles overnight. That's sufficient.

            Existing Tesla chargers are 150kW and there doesn't seem to be any significant difficulty installing these, so your arguments are invalid.

            • (Score: 2) by VLM on Sunday January 15 2017, @01:12PM

              by VLM (445) on Sunday January 15 2017, @01:12PM (#454064)

              A regular level2 charger provides about 20 mph of charging, so

              Another way to look at it is how long do you have to use a conventional AC power cord to get to the closest fast charge station. If, theoretically, recharge stations became as popular as gas stations, then whats important is not time to charge to 100% but time to charge until drive to the fast charge with some safety buffer. That drops both the power required and the time required to "normal garage charger, for about ten minutes or so"

              • (Score: 2) by Whoever on Sunday January 15 2017, @04:37PM

                by Whoever (4524) on Sunday January 15 2017, @04:37PM (#454111) Journal

                Another way to look at it is how long do you have to use a conventional AC power cord to get to the closest fast charge station.

                One of the really nice things about owning an EV is that you don't have to go to a gas station. Charging overnight at home is a fantastic convenience.

      • (Score: 3, Informative) by Scruffy Beard 2 on Wednesday January 11 2017, @08:58PM

        by Scruffy Beard 2 (6030) on Wednesday January 11 2017, @08:58PM (#452687)

        Only resistance heat is a problem for quick-charging.

        I think NiCd batteries are actually supposed to get cold during initial charging.

        As you get closer to full charge, you start overcharging some cells: which produces heat (since the energy can no longer be stored).

        • (Score: 2, Informative) by anubi on Thursday January 12 2017, @10:26AM

          by anubi (2828) on Thursday January 12 2017, @10:26AM (#452902) Journal

          Thanks... I had no idea charging Ni-Cds was endothermic... I just had to verify your claim. [jmbatterysystems.com]

          Charging process is strongly endothermic - the battery cools during charging. This makes it possible to charge very quickly, as the I2R heating and endothermic chemical reaction counteract each other.

          --
          "Prove all things; hold fast that which is good." [KJV: I Thessalonians 5:21]
      • (Score: 2) by maxwell demon on Wednesday January 11 2017, @10:16PM

        by maxwell demon (1608) on Wednesday January 11 2017, @10:16PM (#452732) Journal

        Who has a plug with a significant fraction of a Megawatt available--this is starting to sound like direct connect to a generating station.

        Do you have a gas pump at home?

        --
        The Tao of math: The numbers you can count are not the real numbers.
        • (Score: 2) by lx on Thursday January 12 2017, @06:10AM

          by lx (1915) on Thursday January 12 2017, @06:10AM (#452851)

          Does filling up your tank take 20 minutes?

          • (Score: 2) by maxwell demon on Thursday January 12 2017, @07:50AM

            by maxwell demon (1608) on Thursday January 12 2017, @07:50AM (#452873) Journal

            No, but 20 minutes combined with a long range is not bad. I would not be willing to wait two hours on the loading station. But 20 minutes would not be bad. Especially if in return you'd not get the gas smell. Note that with a bit of planning, you'd schedule those at times where you'd have a break anyway, like eating lunch.

            --
            The Tao of math: The numbers you can count are not the real numbers.
    • (Score: 2) by q.kontinuum on Wednesday January 11 2017, @03:04PM

      by q.kontinuum (532) on Wednesday January 11 2017, @03:04PM (#452512) Journal

      Americans are also legendarily cheap, and will buy absolute shit as long as its 5% cheaper at walmart or the stealership,

      True? I saw that Walmart didn't get a foot on the ground in Germany, when they tried around 2000 (+/- 5 years) because they couldn't compete with Aldi and LIDL price-wise, presumably due to costs of filling the shelves, service like packing the shopping bags, etc., while Aldi and Lidl have lower prices but a bit more rugged outfit, e.g. some of the goods displayed on their palettes in the store.

      A quick search now shows that Aldi started attacking the US market again 2016, and also they started to rebuild their shops in Europe a bit more appealing, so maybe things changed a bit by now. Also some articles seem to make out more cultural reasons [huffingtonpost.com]

      Walmart employees are required to stand in formation and chant, “WALMART! WALMART! WALMART!” while performing synchronized group calisthenics.

      [...] maybe they found this oddly aggressive, mindless and exuberant exercise in group-think too reminiscent of other rallies....like one that occurred in Nuremberg several decades earlier.

      Walmart requires its checkout people to flash smiles at customers after bagging their purchases. Plastic bags, plastic junk, plastic smiles. But because the German people don’t usually smile at total strangers, the spectacle of Walmart employees grinning like jackasses not only didn’t impress consumers, it unnerved them.

      prohibited sexual intimacy among its employees. [...] had no problem with screwing the environment, [but] they couldn’t abide employees doing it to each other

      while others also mention the price competition [nytimes.com].

      Aldi, with 4,100 stores in Germany, undercuts Wal-Mart on price, while still offering high-quality food.

      Personally, while I definitely don't like the Walmart culture as described in the Huffington Post article, was definitely mainly driven away by the higher grocery-prices at that time (wasn't earning well that time)

      --
      Registered IRC nick on chat.soylentnews.org: qkontinuum
      • (Score: 0) by Anonymous Coward on Wednesday January 11 2017, @10:28PM

        by Anonymous Coward on Wednesday January 11 2017, @10:28PM (#452743)

        e.g. some of the goods displayed on their palettes in the store.

        How colorful!!

    • (Score: 2) by RedBear on Thursday January 12 2017, @02:14AM

      by RedBear (1734) on Thursday January 12 2017, @02:14AM (#452816)

      Its going to be interesting watching range anxiety smash into cheapness and performance.
      I'd be pretty happy with 40 miles range for 10% of the cost, since most of the money in EVs is in the battery, I'll LOL all the way to the bank with my 40 mile EV and $90K in the bank. $90K in the bank means when I need to travel 1000 miles its by helicopter to the airport and private jet and still have money left over, not driving myself like a peasant. Also most of the mass of an EV is in the battery so when I drop the hammer the anxious people will be left in the dust while I go 0-60 in like 1 second.
      Americans are also legendarily cheap, and will buy absolute shit as long as its 5% cheaper at walmart or the stealership, so the result of 300 mile cars is going to be cheaper short range cars, in the marketplace on average nobody going to sell 300 mile cars if it costs more than an extra $1000 or so. You can go 300 miles instead of 200 miles but its gonna cost you $30K and increase your 0-60 times by 50% and your commute is 20 miles ... how many people will go for it?

      I don't think you've been paying close enough attention to what's been going on in the American EV market for the past several years.

      With the way that EV battery costs have been dropping (i.e., much faster than predicted, just like the continually decreasing costs of wind and solar power), all of this will soon be irrelevant. We already have the Chevy Bolt with a real-world range of over 200 miles, selling for around $32,000 after tax incentives. Due to all the safety regulations nobody can really market an ultra-cheap vehicle in the US, regardless of the size and cost of the battery. There is quite a high base-level cost of all the stuff that's required to make a vehicle legal to drive here. The American market has shown that people just aren't very interested in low-range EVs, or lightweight vehicles like the open-cage Renault Twizy, and by the time it would be possible to create a truly inexpensive low-range EV the battery costs will have dropped to the point where it will be possible to significantly increase the battery capacity for minimal increase of the overall vehicle cost. So there is simply no market pressure to create something that doesn't even have the range of the 1st generation Nissan Leaf (70-ish miles) from over half a decade ago.

      We are also on the verge of bringing multiple different kinds of battery improvements to market that will increase energy density as well as make batteries lighter. The fact that a high capacity EV battery pack is currently relatively heavy simply won't be a big deal before long. Because they won't be. The only people who are even worried about this sort of thing are those who haven't spent much time driving an EV and still have strange, mistaken ideas about EVs being somehow inherently infeasible because, for instance, they're "too heavy to work". In the real world, even with current battery technology, this has been shown to be nonsense. Current EVs work just fine, and they will only improve with time.

      --
      ¯\_ʕ◔.◔ʔ_/¯ LOL. I dunno. I'm just a bear.
      ... Peace out. Got bear stuff to do. 彡ʕ⌐■.■ʔ
  • (Score: 5, Funny) by FatPhil on Wednesday January 11 2017, @02:33PM

    by FatPhil (863) <reversethis-{if.fdsa} {ta} {tnelyos-cp}> on Wednesday January 11 2017, @02:33PM (#452506) Homepage
    The vehicle in question is a rocket, and this is simply a bunch of Note 7s strapped together.
    --
    Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
  • (Score: 3, Informative) by Anonymous Coward on Wednesday January 11 2017, @03:10PM

    by Anonymous Coward on Wednesday January 11 2017, @03:10PM (#452514)

    Consider that a car/truck needs between 0.1 and 1 kWh per mile. (That's, for example, 8 to 80 hp at 60 mph; obviously it's not linear with speed, but that range covers a wide variety of vehicles at a variety of speeds.)

    So a fast charge that gives you 310 mile range is 31 to 310 kWh capacity.

    Charging that in a third of an hour means average power delivery of 100kW to 1 MW, and the planned 5 to 10 minutes just doubles or quadruples that.

    And that means some ridiculous voltages, ridiculous currents, or both. Even at 460V (common enough industrially), and 20 minutes, that's 200 to 2000 amps. Ever handled a #3/0 or #4/0 welding cable? Mentally heft it, keeping in mind there's gonna be two of those conductors. Just the weight of the copper makes it impractically heavy to expect everyone to lift and connect to their car. And I'm not sure going over 460V is a good idea for something exposed to untrained users.

    (I have not RTFA yet, though I plan to. TFS is sufficient to make it clear the 20-minute/310-mile figure is more bragging rights than practical reality; of course that doesn't mean the batteries are useless: a 20-minute, 80% fast charge could make a lot of sense on a 30-mile range city car. Electric motorcycles, golf carts, all sorts of things have small enough battery packs that 3C charging involves reasonable power levels. Cars with 300+ mile range just aren't one of them.)

    • (Score: 2) by DannyB on Wednesday January 11 2017, @03:22PM

      by DannyB (5839) Subscriber Badge on Wednesday January 11 2017, @03:22PM (#452519) Journal

      If the amount of copper is as much as you say, this would make the cables at every charging station an attractive target for thieves.

      --
      The lower I set my standards the more accomplishments I have.
      • (Score: 1) by WillR on Wednesday January 11 2017, @05:55PM

        by WillR (2012) on Wednesday January 11 2017, @05:55PM (#452585)
        So we'll have to add a steel armor jacket to the cable, like a really big pay phone handset cord.
        • (Score: 2) by DannyB on Wednesday January 11 2017, @06:42PM

          by DannyB (5839) Subscriber Badge on Wednesday January 11 2017, @06:42PM (#452622) Journal

          Yes, that would definitely increase the value of the stolen cable. Is the steel armor worth as much as the copper?

          --
          The lower I set my standards the more accomplishments I have.
          • (Score: 2) by TK on Thursday January 12 2017, @10:06PM

            by TK (2760) on Thursday January 12 2017, @10:06PM (#453087)

            As supplied? Maybe, but not likely.

            As scrap? No way.

            --
            The fleas have smaller fleas, upon their backs to bite them, and those fleas have lesser fleas, and so ad infinitum
    • (Score: 1, Insightful) by Anonymous Coward on Wednesday January 11 2017, @04:45PM

      by Anonymous Coward on Wednesday January 11 2017, @04:45PM (#452552)

      I can do about 18 km /l with a 1.5 l honda ICE and no battery.
      the tank holds about 40 liters.
      the range (highway + no red light + pee-pee stop) is thus 720 km.
      40 l (91 octane) is about 40 x 34.8 MJ = 1'392 MJ = 1'392'000 kJ = 1'392'000'000 J
      1 joule is 0.000278 watt-hours, thus 1'392'000'000 J is 386'976 watt-hours or 386.976 kwh.
      so a equivalent (electrical) battery to 40 l gasoline tank would need to hold 386.976 kwh.

      assume we can use 3-phase 380 V from A/C grid to generate D/C @ 500 V and we want to move all the electrons
      from 0 kwh to 387 kwh via 500 V D/C in ONE HOUR we need a current of ... 773.952 A ... errr ...

      To be able to transfer this amount of current a very thick cable will be required + Isolation for 500 VDC!
      Also there's a place in the transfer system, where the charging "cable" stops and
      the car-system starts: the connection point.
      THIS will also have to guarantee a solid connection ... else a solid (and permanent) connection will be generated via WELDING!

      In houses with 3 phase systems that have a 100 A main breaker the transfer is
      solved with a SOLID copper BUS BAR.

      note: via 22kV (what a transformer connects to) A/C that's "only" 17.59 Amps : )

      • (Score: 3, Interesting) by VLM on Wednesday January 11 2017, @05:24PM

        by VLM (445) on Wednesday January 11 2017, @05:24PM (#452565)

        My original post held no small amount of 1 sig fig exaggeration but for a good time AC try this article:

        https://en.wikipedia.org/wiki/SAE_J1772 [wikipedia.org]

        Because a J1772 level 1 is essentially a single branch USA 115 volt AC power plug with water proofing and testing and stuff I was going to get a cheap charger and whip the hell out of an arduino to speak the signal protocol (doesn't look hard) and now I have an extremely easy way to attach AC power to my existing gas car.

        See I already have an engine block heater and I was thinking maybe a battery heater too and what the hell some kind of AC powered cabin heater. People who live in the frozen north like me already have all that but we also have to plug in via rube goldberg idiocy of AC extension cords under the hood and the connections are green with corrosion and its a PITA and I want the J1772 experience of flip the lid and slam it in and I'm done in about a second, even while wearing mittens.

        And sooner or later I'm gonna have an EV anyway, so if I install a J1772 in my garage, well..

        I mean, I even have a snowblower with electric start that needs 115V AC so yeah another application for a J1772 instead of crummy electric extension cords.

        Like many of my electronic projects I researched this and figured out its possible and promptly ran out of motivation and spare time. I could do it, at least I think I could.

        Anyway back to the main topic, J1772 was cool a decade ago but now the hotness is CCS

        https://en.wikipedia.org/wiki/Combined_Charging_System [wikipedia.org]

        CCS is kinda J1772 the same way USB2 is fancier USB1.

        And the numbers you're looking for, for a CCS system, is more than a hundred amps at less than a thousand volts.

        Needless to say the communications protocol for CCS is no longer resistors and voltages and shit that can be described on the back of a postcard, CCS uses some 700 page monstrosity of a protocol. What a waste. Very "system 2.0 disease" where the second redesign (of software) is uselessly fancy.

        My motivation is lower because CCS connectors so far are pretty ugly unlike the stylish J1772 some of which look to me like Star Trek hand held Phasors to the point of how are they avoiding legal problems?

        No small number of "way over the top engineering projects" boil down to something very prosaic at the core, like fundamentally I just wanted to cosplay with some star trek phasors in my garage and next thing you know I'm trying to figure out how to steal a copy of a licensed DCMA protected 700 page long protocol spec and next thing after that is F it I'm gonna go play minecraft tonight instead.

      • (Score: 2) by VLM on Wednesday January 11 2017, @05:44PM

        by VLM (445) on Wednesday January 11 2017, @05:44PM (#452577)

        Whoops AC forgot to mention the most interesting thing about your post is I'm aware of something else that draws about ten amps at 20 KV and thats a 100KW class AM broadcast transmitter.

        Think of something like a CCA 50000D like this link

        http://www.transmitter.be/cca-am50000d.html [transmitter.be]

        I'm pretty sure CCA isn't in business anymore which is too bad. 10000 pounds and 50 square feet of space so a little larger and heavier than your average gas pump.

        Wanna see the tube data sheet?

        http://www.cpii.com/docs/datasheets/78/4CX35-000C-8349.pdf [cpii.com]

        Those little loop things by the anode are handles... its about the size and weight of a full trash can. "How can something full of empty vacuum weigh so much?"

        You know you got a serious vacuum tube when the cathode needs 3KW just to keep warm.

        Anyway the point is that similar levels of voltage/current/power are a big "Eh" in industrial EE land, whereas you'll run into people that mistakenly think it takes an entire nuclear power plant to charge a car or whatever LOL.

        Now if every car were replaced by an EV and every garage in the burbs had a fast charger, yeah you'd need some more nukes and there would be issues on the grid and stuff. But at this point installing a mere charger is about as exciting to the electrical grid as installing a single medium/high power AM transmitter or a fraction of an old fashioned UHF TV transmitter. Now UHF TV transmitters, those guzzled electrions like drunken sailors at happy hour.

        • (Score: 1, Insightful) by Anonymous Coward on Wednesday January 11 2017, @08:17PM

          by Anonymous Coward on Wednesday January 11 2017, @08:17PM (#452671)

          teh calculation is wrong.

          an ICE can only convert the latent energy of 40 l of gasoline by about 30 % efficiency.
          an electrical motor, however can get much closer to 100 %.

          so if we just say that an electrical drive-system for a car is 3 times more efficient then a ICE, then
          a battery holding only a 3rd of energy of a 40 liter tank will get you just a far.

          thus 1/3rd of original charging amps (which is still alot) would suffice to charge for the range... or the same original crazy 700+ amps and
          1/3rd of time or 20 minutes .. i think.

    • (Score: 1, Informative) by Anonymous Coward on Wednesday January 11 2017, @05:19PM

      by Anonymous Coward on Wednesday January 11 2017, @05:19PM (#452563)

      A test facility I use has a high tech servo motor that can peak at well over 1000hp. Because the motor is mounted on a moving frame, it required something like 50 feet length of flex cabling. The cost of the copper was looking prohibitive, until they discovered that the latest high current conductor looks like a rubber garden hose with water cooled conductors inside. There are some problems in isolating the water cooling circuit from normal water pipe ground, with 440V on the bare wires inside the hose...but it's all working and touch wood has been reliable for a couple of years now.

      • (Score: 0) by Anonymous Coward on Thursday January 12 2017, @11:05AM

        by Anonymous Coward on Thursday January 12 2017, @11:05AM (#452905)

        Can it work safely with drivers like this around:
        https://www.youtube.com/watch?v=NZ4h_uCTCXA [youtube.com]

        Seems to be a cig in the guy's mouth too...

        • (Score: 0) by Anonymous Coward on Thursday January 12 2017, @07:16PM

          by Anonymous Coward on Thursday January 12 2017, @07:16PM (#453020)

          The charging plug-in interfaces (at least more advanced) don't let the car turn on until the plug is removed.

          I'm sure there is still some way for an idiot to ruin an electric charging cable, but this makes it a little harder.

    • (Score: 2, Informative) by NewNic on Wednesday January 11 2017, @05:48PM

      by NewNic (6420) on Wednesday January 11 2017, @05:48PM (#452578) Journal

      Cars generally do an average of 3-4 miles per kWh. At 4 miles per kWh and a 310 mile range, it requires approximately 250kW to charge in 20 minutes.

      Tesla is already hinting at chargers that put out over 350kW.

      --
      lib·er·tar·i·an·ism ˌlibərˈterēənizəm/ noun: Magical thinking that useful idiots mistake for serious political theory
      • (Score: 2) by bob_super on Wednesday January 11 2017, @06:02PM

        by bob_super (1357) on Wednesday January 11 2017, @06:02PM (#452588)

        > Tesla is already hinting at chargers that put out over 350kW.

        It's a good thing that they also sell home batteries, since the copper under the street isn't going to agree with me pulling even a tenth of that for more than a second or two.
        It would be a nice experiment to see which cable or transformer would give up the ghost first.
        I don't want to know how much it would cost to get 350kW service to my garage.

        The best avenue for fast charging for cars is still fast battery swaps at special centers. Pay for a battery "rent", swap them anytime for a charged one (much harder to do if you own). Too bad the experiment in France failed...

        • (Score: 1) by NewNic on Wednesday January 11 2017, @06:33PM

          by NewNic (6420) on Wednesday January 11 2017, @06:33PM (#452613) Journal

          They are not going to be putting these types of chargers in typical houses. You only need overnight charging capability at home.

          Battery swapping is a pipe dream and would retard progress (battery development would be slowed down by the need to have standard batteries). Battery swapping isn't going to make an order of magnitude difference to the electricity demands form a busy charging station. Those swapped batteries still need to be charged.

          --
          lib·er·tar·i·an·ism ˌlibərˈterēənizəm/ noun: Magical thinking that useful idiots mistake for serious political theory
          • (Score: 3, Insightful) by bob_super on Wednesday January 11 2017, @06:54PM

            by bob_super (1357) on Wednesday January 11 2017, @06:54PM (#452629)

            > You only need overnight charging capability at home.

            I'm pretty sure that the same people who can't imagine only having 200 miles will chime in with use cases requiring quick home charging.
            #NeverWithoutMyFreedomToDriveNow /s /s

            > Battery swapping isn't going to make an order of magnitude difference to the electricity demands form a busy charging station.
            > Those swapped batteries still need to be charged.

            It changes when and how fast you need to charge them.

            I know it's not going to happen on US long-range cars. But it can work for short-range convenience fleets (batteries that don't fill every last cubic inch) or citi buses with a regular service loop. It can, but nobody's going to pony up the money, so it likely won't.

            > battery development would be slowed down by the need to have standard batteries

            You could convince some people to trade off a few km of range for the convenience of having smaller charge modules that slide in and out easily. Bigger cars have more modules. The custom batteries will always be better, but the replaceable ones being much cheaper and more available has proven to work for many applications.
            After the AA, AAA, D-cells (LR6, LR3...), why not the same for big-boys' cars?

    • (Score: 0) by Anonymous Coward on Wednesday January 11 2017, @05:59PM

      by Anonymous Coward on Wednesday January 11 2017, @05:59PM (#452587)

      Let's just supply full 13.4kv mains level voltage to the charger. If it had some smart electronics to determine if a good connection is made before supplying a modest 6-1200 volts to the car, the conductor could be fairly light, but you'd want some heavily insulated and armored cable, and a plug that locked in place until current could be lowered so there would be no arcing...

  • (Score: 2) by Phoenix666 on Wednesday January 11 2017, @03:14PM

    by Phoenix666 (552) on Wednesday January 11 2017, @03:14PM (#452516) Journal

    The transition to EVs is so welcome. Engine noise, both inside a car, and the aggregate from traffic on the outside, is such a stressor. Being able to speed along in silence is sublime.

    Also, dependence upon fossil fuels for transportation and work of any kind is a jail most people don't even know they're in. Whether you're running a trucking company or a farm fuel prices take a serious chunk out of your bottom line.

    --
    Washington DC delenda est.
    • (Score: 2) by FatPhil on Wednesday January 11 2017, @03:40PM

      by FatPhil (863) <reversethis-{if.fdsa} {ta} {tnelyos-cp}> on Wednesday January 11 2017, @03:40PM (#452530) Homepage
      As someone who used to get a bus from the town centre bus-station to a business park every day, all I can say is that my nose and my lungs are happier than my ears. Fortunately, the town started using LPG busses, and started excluding cars from more and more of town, but in a highly built up old town area, even a moderate amount of traffic makes the air stink, and the 500-year-old buildings turn black.
      --
      Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
      • (Score: 2) by Phoenix666 on Wednesday January 11 2017, @08:23PM

        by Phoenix666 (552) on Wednesday January 11 2017, @08:23PM (#452674) Journal

        > the 500-year-old buildings turn black.

        Also good. I remember the Dom in Cologne was black from the same cause, no matter how much they scrubbed and sandblasted it. People from the Age of Coal would marvel at our air quality today, and I suspect we'll react the same way after the EV revolution has run its course.

        --
        Washington DC delenda est.
    • (Score: 0) by Anonymous Coward on Wednesday January 11 2017, @06:07PM

      by Anonymous Coward on Wednesday January 11 2017, @06:07PM (#452594)

      > Engine noise, ... is such a stressor.

      Listen again, for high speed roads the tire noise dominates (does depend on how smooth the road is). This was clear standing on a bridge over a freeway, it was mostly loud "white-ish" noise until an unusually loud vehicle passed under (bad muffler, heavy truck).

      • (Score: 2) by Phoenix666 on Wednesday January 11 2017, @09:01PM

        by Phoenix666 (552) on Wednesday January 11 2017, @09:01PM (#452689) Journal

        No, it's not. Our house in the suburbs is near the intersection of the Long Island Expressway and a major arterial road. There are sound barriers in place, but the engine noise is still what you hear, not the tire noise. When it's a semi, or a pack of Harleys, or crotch rockets, or muscle cars, you can tell.

        --
        Washington DC delenda est.
        • (Score: 0) by Anonymous Coward on Wednesday January 11 2017, @09:17PM

          by Anonymous Coward on Wednesday January 11 2017, @09:17PM (#452705)

          OK, near an intersection I can see the engine noise being the nuisance. I used to live backed up to a rural freeway that ended in a stop light--and what we heard over the sound barrier was the trucks jake braking (although there were signs prohibiting engine braking).

          Where the interstate is free running (and no sound barriers to intercept noise originating at ground level), then it's tire noise mostly.

          • (Score: 2, Interesting) by Anonymous Coward on Thursday January 12 2017, @08:43AM

            by Anonymous Coward on Thursday January 12 2017, @08:43AM (#452880)

            As a bicyclist I can't hear the difference between a passing Tesla and a passing Audi, at least not until I listen carefully after seeing the Tesla logo.

            Tire noise is a bigger part than people think.

            • (Score: 0) by Anonymous Coward on Thursday January 12 2017, @07:21PM

              by Anonymous Coward on Thursday January 12 2017, @07:21PM (#453024)

              Interesting comment, haven't been passed by a Tesla yet (while cycling). In cool weather, I've always been impressed by the bubble of warm air that follows after a car passes--assuming this is all the waste heat from the IC engine. Maybe the Tesla doesn't have this warm bubble behind it?

  • (Score: 5, Funny) by Thexalon on Wednesday January 11 2017, @03:18PM

    by Thexalon (636) on Wednesday January 11 2017, @03:18PM (#452517)

    I could see this kind of thing, coming from such a highly respected company as Samsung, having a potential to really explode onto the market!

    --
    The only thing that stops a bad guy with a compiler is a good guy with a compiler.
    • (Score: 3, Funny) by Anonymous Coward on Wednesday January 11 2017, @03:22PM

      by Anonymous Coward on Wednesday January 11 2017, @03:22PM (#452520)

      Well to be fair, I don't think we can give them all the credit. It's quite a booming industry after all. Everywhere you look there's technology that's just a blast coming onto the scene.

    • (Score: 2) by ledow on Wednesday January 11 2017, @09:23PM

      by ledow (5567) on Wednesday January 11 2017, @09:23PM (#452709) Homepage

      Whoa, hold fire there. Don't get too heated just yet.

  • (Score: 2) by chewbacon on Friday January 13 2017, @01:28AM

    by chewbacon (1032) on Friday January 13 2017, @01:28AM (#453141)

    So this is what happened to all of those note 7s?