SoylentNews is people
SoylentNews
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.
(Score: 2) by ledow on Wednesday January 11 2017, @09:17PM
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
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
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
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
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
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
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.