There are still too many issues with all electrics, mainly range and recharging ability. Do some aggressive driving and watch your battery drain with lightning speed. Recharge times are also an issue.
There is a lot of hope in graphene based batteries, and actual science to back up the hype. Graphenes show promise because they offer near zero resistance, don't break down (so the battery has no limit to its lifespan), and hold far more charge in the same space as compared to even the best L-ion batteries.
These graphenes can also be layered into multi level, high efficiency photovoltaic skins that could cover the entire car invisibly.
What EV vehicles also need is a super capacitor so that you can plug in and rapidly charge.
Another problem with EVs is the toxicity and environmental impact of the battery materials. Ore is mined in Africa, where tribal warlords frequently kill each other for the mining rights. Then it goes to China, where processing the raw ore into refined material is so devastating that the land around the refineries look likes the surface of Mars for miles around. After that it is shipped to Japan to be made into batteries. When it arrives at the dealership, you now have a brand new gas-free vehicle that has already produced more pollutants than a still running 78 Mach-1 Mustang has to date. And never mind that if your car catches fire, EMS isn't coming near you due to the poison gas created by the large burning battery.
Extremism in defense of Liberty is no vice.