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Batteries

density of stored energy from batteries innovative
For reference, the new batteries from NEC have capacity of 350 Wh / liter, corresponding to 140 Wh / kg , versus 150 Wh / liter ( 50 Wh / kg ) of nickel / cadmium and 40 Wh / kg of those lead-sulfuric acid. As you can see, we have obtained an improvement by a factor of about 3.5 on the energy density than lead-acid batteries. It is undoubtedly a significant step towards the possibility of having a storage system appropriate to the range of a vehicle. In any case, you should always keep in mind as a reference that:

energy density of gasoline
The energy density of petrol is placed around 12,400 Wh / kg , still far a factor of 33 than that of the new lithium batteries, having considered the differential d ' end-use efficiency ( 30% for the internal combustion engine and 80% for the batteries + electric motor ).

Sources:

• Lithium Batteries and Auto Electrical
• Rechargeable

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Switzerland - Column parking with charging


Electric Cars Switzerland
In Switzerland there are only electric cars but also the columns for parking with the possibility of charging. It would not seem so hard, wanting to be able to achieve something similar in Italy.
Of course if they are nipped in the bud even the most simple and ingenious initiatives, such as the electric retrofit cinquino , the road seems to climb in net, unfortunately.

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The Cinquino with the retrofit

on Leonardo cinquino the electrical production of Pietro Cambi, December 12, 2007:

is the transformation of a classic sixteenth century, the internal combustion engine is replaced with an electric motor and tank batteries, like those on mobile phones to have more autonomy.
Unfortunately, the current Italian law, unique in the world, allow on-road use only under certain conditions and bearing test. Pietro Cambi is still fighting to liberalize the conversion to electric traction of vehicles. Official site
eurozev