The lithium ion battery's days are numbered. I find it most interesting that there might not be a one size fits all solution, but rather different energy storage means for different applications. One thing is for sure - LI-IONs can't keep up.
There’s is one component of all of these things that hasn’t changed in that time period: the lithium-ion battery. Whether in the iPhone, the Prius, and even the Tesla Model S, the Li-ion battery is essentially made of the same stuff as those first introduced by Sony in 1991. That’s not to say that innovation hasn’t happened around them, of course. Device-makers have become better at charging them, cooling them, and controlling how much power they draw into our phones, cars, laptops, and USB gadgets. But they’re still largely the same battery. Even Tesla’s $5 billion plans for a “giga”-sized battery factory involve the manufacture of—you guessed it—lithium-ion packs.