A couple people have brought them up. They look very promising. The problem is I think they have a gel electrolyte, not a true solid state battery, which means they are not pressure stable over time. They will offgas hydrogen which will eventually build up and compromise any biosafe encapsulation.
I could be wrong though. No one I know is has been able to get their hands on them. The manufacturer I’m familiar with is “Prologium”. You could reach out to them for some samples. If you need some up front capital to meet the minimum order quantity we could arrange a group buy and test them out.
I seriously doubt these are lithium ceramic… probably typical lithium polymer.
They use the word “flexible” but usually what they mean is moldable… as in they can custom mold the shape to fit your product, but it will not “flex”… it will not bend without serious damage to the battery.
$100 for just a sample is also quite expensive.
I’m going to keep looking around and will be contacting ProLogium through my company.
Hope they still are manufacturing them cause from what I’ve read there’s no real expansion/degassing with them.