In the world of rechargeable batteries, "hundreds" of charges isn't very many. You could use that up in six months if you're a heavy user. In cars you want thousands of cycles, so the battery outlives the car (charging every day for 15 years = 5478 cycles), which prevents very costly replacements.
So, it's cool, but by itself, not the breakthrough we're looking for.
In the world of rechargeable batteries, "hundreds" of charges isn't very many. You could use that up in six months if you're a heavy user. In cars you want thousands of cycles, so the battery outlives the car (charging every day for 15 years = 5478 cycles), which prevents very costly replacements.
So, it's cool, but by itself, not the breakthrough we're looking for.