"...will finally make the electric car a reality?"
Um, first of all electric cars are actually older than gasoline cars (snobby comment, done).
Second, with current battery tech electric cars are already more cost effective than gas driven cars when you compare vehicles of identical costs. The only wrinkle is lack of highways travel, but there's a solution for that too. Compare a $10k used car to $10k electric car: The cost of a decent LiFePO4 battery pack is $6k, the distance per charge is at least 50 mi, the charge cycles is at least 2k -meaning that the $6k battery pack will last for 100k mi. The cost of electricity to recharge the pack is ~$0.10 per 950 Wh which means the cost of 100k mi is ~$1645.14 -or $7645.14 for the total cost of electricity and battery. Now, for the gasoline car lets say gas will average $4/gal for the next 10 years (that seems low considering it more than doubles in price every two years) and that a decent used car will get 35-40 MPG in the city. Considering ONLY the cost of gas (not oil, maintenance, or repairs on the engine), the cost of fuel for 100k mi will be between $10k and $12k. This is with a very conservative estimate of gasoline costs and not accounting for the lower maintenance costs of electric drive systems. To address highway travel, any car 3500 lbs and under requires about 18 HP to travel at 60-70 MPH. If you have trunk space or a trailer hitch on your electric car, you can add a gasoline or propane generator to produce the 13.5 kW that your car uses on the highway and have infinite range. Or do what I do and barrow someone's gas car when you need to go more than 50 mi. Sorry about the formatting, /. took away my paragraphs :(