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Company Builds Fast Charging Station For Electric Cars
thecarchik writes "Japanese based JFE Engineering has released its ultra-fast charge station. Designed to comply with the CHAdeMo standard developed by Tokyo Electric Power Company, Nissan, Mitsubishi, Subaru and Toyota, the system is capable of charging a 2011 Mitsubishi i-Miev from empty to 50% full in just three minutes. Even just three minutes plugged into the fast-charge station was enough to enable a standard 2011 Mitsubishi i-Miev to travel a further 50 miles before further charging was required."
350*70=24.5 kW, not 240
And regarding the snow? Yea, electric cars do just fine there:
http://www.youtube.com/watch?v=tH_mSJC21f8
But for retail locations and gas stations, the 62.5 kW power requirements of each charger should not be impossible to accommodate in all but the remotest of locations.
In addition, even the remotest location can accommodate it: just install a generator burning gas (I'm kidding but only half-kidding: remote locations in which you can currently refill your tank will have petrol and a generator will consume less per kWh generated than the car's petrol engine...be it only because it doesn't need to change gears/etc).
Questions raise, answers kill. Raise questions to stay alive.
...16kWh battery pack of the Mitsubishi i-Miev...
...charging a 2011 Mistubishi i-Miev from empty to 50% full in just three minutes
50% of 16kWh is 28800000J. 28800000J divided by 180 seconds (3 minutes) is 160000 J/s, or 160kW.
This source also has some more technical details, like charging current, how much current the charging station will draw from the grid (20kW), that the charging station has twin batteries with different properties, that car makers need to adopt new battery types for it to work:
http://techon.nikkeibp.co.jp/english/NEWS_EN/20100621/183598/
I wonder if it has some sort of means of load smoothing and a limited duty cycle
Yes, it does. One of the charging stations described itself has a battery, for load smoothing purposes.
That's a win for stations without heavy power available. But busy stations are going to need a high-current feeder, so that can charge one car after another during busy periods.
The correct answer is actually hydroelectric power from Hokkaido. There is some nuclear power available though, and with enough warning it can be ramped up to full capacity for quite a while to provide even more.
It makes perfect sense in the 1970s and may do again - electricity available if there is a naval blockade by China. Expensive, high maintainance, awkward waste problems but ultimately it works in that situation. That's the sort of niche nuclear advocates should be arguing for and improving to turn it from the expensive alternative energy everyone hates into a commercial reality.
noting that most electrical storage devices that work in this manner have had run-away discharges and other problems that have caused burns with even something as simple as a laptop recharger.
Misconception: "All batteries are the same".
Reality: Different battery chemistries have *very* different properties. Excepting Tesla and their partners, the types of batteries you find in EVs are *not* the same type you find in laptops. They're a chemistry chosen specifically for dramatically greater stability and longer life (at the cost of some energy density). And even in Tesla's case, they put *way* more safety measures into their batteries than you find in a laptop pack. Each cell is kept inside of a "can" to prevent failures from propagating to other cells, for example.
In catastrophic failures, traditional li-ion/li-po cells burn vigorously, while phosphate cells smoke and manganate cells do nothing (as a general rule).
Trump's plan to get rid of Mueller appears to be 'be so guilty of so many things that Mueller works himself to death.'