Well there's a huge difference between filing a patent, and getting a working small scale prototype in a lab. There's a huge step in taking a lab prototype and up-scaling to power something like a car; an even bigger step in actually getting a working one into a vehicle, and even once that's done - a way of bringing that to market - so it's going to be a long time coming.
It's a very exciting time, but the current technological revolution is a bit bi-polar, with so many evolving technologies to consider in a relatively unsure term, we seem to be hesitating about where to place our bets - which seemingly leads to delays and slower than optimal roll-out.
Again, a major part of the transport evolution to electric is about having enough electricity available at the right time, and that's something we are a long way away from. You can imagine a situation where you could charge your car with say 30KWh of juice in 1-2 mins, but thats not going to be possible with current domestic power, so the only solution would be a gas station setup with an absolutely huge electricity supply - which needs to be available - so I suppose if the grid is able to take it, you would have to book a slot throughout the day to go charge, and clearly peak electricity would have to go up a lot in price, while off-peak would have to go down a lot. I can see that in the future, there will need to be a new pricing model for peak and off peak energy prices to load balance the grid, and chasing off peak times will mean you will have to keep going there to recharge at bedtime... until autonomous vehicles implicate that they can go there themselves. There are enough problems with grid load already from people coming home, turning on the oven and tumble dryer, and then boiling the kettle...
I also keep having these thoughts about the majority of car makers going under in the future, as there are only going to be a couple of producers that win this race. Huge automotive companies can very quickly go bust if their pipeline is wrong, and that would be a shame for workers and consumers. At this stage I cant see how we are going to get to a stage where we have affordability and choice, preserve workers jobs, and make products that can be repaired simply. Other than a pay per mile model, I can't see a private ownership model in the future where purchase price is higher than it is now, with the repairability where it is now. What you need is the ability to swap out broken parts like cells or a motor with ease, so that a single component failure doesn't render you with a problem that is logarithmically more significant than it is now. And that is something exemplified by Mitsubishi with a complete battery pack being one part number... it's only OK if you can guarantee that it won't fail for a very long time, and that if it does, it's taken care of.
Does this mean that in the future I will be able to ditch my oven and microwave and cook my pizza in 3 seconds in a superconductor oven?