TDK claims insane energy density in solid-state battery breakthrough

Apple supplier says new tech has 100 times the capacity of its current batteries.

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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.

This puts a bit of a limit on things.
- My first thought is I wonder if you could layer a bunch of batteries together in sheets or weave a bunch of smaller batteries into a flexible structure of some kind.
The cassette kings ?!
- Haha that was a long time ago wasn't it. :)