> The ceramic material used by TDK means that larger-sized batteries would be more fragile, meaning the technical challenge of making batteries for cars or even smartphones will not be surmounted in the foreseeable future, according to the company.
Still, doubling an Apple Watch’s battery life or 1.5x but making it smaller would still be great.
Cars don't have one huge battery, and smartphones are starting to have multiple smaller ones to fit around the other components (and in folding phones).
You wouldn't need a huge array of coin cell batteries; one coin cell might well be enough.
[1] https://en.wikipedia.org/wiki/Static_random-access_memory#De...
From the TFA: "Solid-state batteries are safer, lighter and potentially cheaper and offer longer performance and faster charging than current batteries relying on liquid electrolytes."
The article to me is worse than click bait. They keep mentioning Apple supplier TDK as if this battery is currently being used in Apple devices. The only link this battery has to Apple is that they use other batteries from the company. So, yes, you're correct in that nothing indicates this as a direct replacement. It is shitty journo looking for relevancy in SEO