As Electric cars are being mooted as the future of motoring it would appear that to go any distance greater than 40 miles will require staging posts, in order to recharge the batteries. So from where I live a day trip to Brighton say would require at least 2 recharges to get there and back. There are several ideas being looked at by rival companies including a battery swap out station to minimise the down time, however a unified system will need to be adopted with similar adapters on each vehicle otherwise it could be chaos. The most worrying thing is Motorway travel as finding cars running out of power like the non Duracell Rabbit littering the lanes of the M25 doesn't bear thinking about.
An American company already manufactures battery powered trucks that have an eight ton payload and can travel 150 miles at 50mph. Much bigger vehicles are on the drawing board.
I can't see 18 wheel Kenworth rigs running on Lithium cells in the near future, but then twenty years ago you and I would not have envisaged a beautiful battery powered sports car that could do nought to sixty in 3.9 seconds, and run for 240 miles at speeds of up to 60mph, all for a few pence per charge.
I didnt say it wouldnt happen - in fact I agree with you - just that the thought of being near so much electrical energy gives me pause for thought. Strangely enough, if we were talking fuel cell technology I wouldnt be as worried, despite the inherent risks associated with hydrogen storage (a notoriously difficult substance to contain.)
I was fishing off Spurn Head when a friend stood on a wooden cover and caused a direct short circuit of a heavy duty battery. The boat owner had tried to make the cover stronger by fitting an alloy bracket under it. The battery blew up into many pieces and we all made a run for the Lifebelts around the boat deck.
When 120 amps let go in one second it is best to be out of the way.