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Next-Gen Samsung EV Battery Gets 300+ Miles of Range From 20-Minute Charge (techcrunch.com)
An anonymous reader quotes a report from TechCrunch: 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. A 20-minute charge delivering that kind of range would help considerably with making EVs more practical for more drivers; it's around the time you'd spend at a rest stop using the restroom and grabbing coffee or a snack, after all. By comparison, Tesla's superchargers currently manage to provide around 170 miles of range on a half-hour charge, so Samsung's planned tech could approximately double that.
I have no details about this battery in particular, but my experience with owning an EV, and knowing others who own them is that range drops around 15% at 0-5C compared to 20-30C.
Yeah... this weekend's weather forecast calls for 40 Below Zero in my town (Alaska).
I wonder how those batteries will do here. Our car batteries get a little cranky w/o either a trickle changer or a battery pad warmer at those temperatures.
In my parts of the woods, all cars plug in, just not all year round! ;)
No, you need to warm the battery first only to charge it. This is why Tesla disables recuperation during initial drive with cold battery. When it is cold it only has reduced capacity + current but that does not matter as during winter you do not need super-sport accelerations; and after 30 mins of driving it gets a normal temperature from invertor+engine heat so that you can utilize its full capacity.
In 1913 the average income was about $15,000 and a car cost about $30,000, in today's dollars.
Not even remotely true. A Model T cost $525 in 1913 which is only $13000 in 2016 dollars. Also the average income was $800 or approximately $19700 in 2016 dollars.
Sure, this technology will beat Tesla's current capability, but it won't be available until 2021. Does Samsung think Tesla won't make improvements by then? They are already quietly increasing the capability of their charging stations, and rolling out new batteries using production tooling.
One of our competitors trademarked the term "hypothesis". From now on, we will call them "boneheaded ideas".
Charging that in 20 minutes will be around 300Kw, 300V and 1000A or 1000V at 300A or some variation thereof.
Any way you look at it the cable and connectors will be ridiculous.
Hardly.
Take 2000V 150A, for instance. 1/0 or 2/0 welding cable, insulated to that voltage, would be well within the current electrical code. The stiffness of such a two-wire bundle would compare favorably to a gas-pump hose - especially in states (like CA) where the hose includes a vapor recovery passage.
Most wiring these days is insulated to 600V by default because it's hard to make insulation any thinner without making it fragile. 2000V is not difficult at all.
You could even include a coaxial "shield" that would detect any failures in the inner cable's insulation, along with signal-level switch wiring that would detect whether the plug was fully inserted into a matching connector, to prevent the enabling of significant current unless the system is safe.
A gasoline pump, running at 10 GPM, is feeding your car about 22 megawatts of fuel heat-equivalent. What's such a big deal about feeding it a mere 300 kilowatts, nearly 2 orders of magnitude less, as electricity rather than liquid fuel?
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way