T-Shirt Phone Charger

[engine]

It seems it's not such a crazy idea.

T-Shirt Phone Charger [bbc.co.uk]

They used a T-shirt bought from a local discount store, which was soaked in a solution of fluoride, dried and then baked in an oxygen-free environment at high temperature.
Hybrid fabric

The fibres in the fabric converted from cellulose to activated carbon during the process, but the material remained flexible.

By using small parts of the fabric as an electrode, the researchers showed that the material could be made to act as a capacitor.

[rocknbil]

OK now that is awesome. :-) It doesn't appear to say anything about how you recharge the shirt, though. + bonus: if they make it so it only charges with aggressive movement, you might see a few more people walking and exercising. :-)

[Leosghost]

Given the toxicity of many of the fluoride compounds ( fluoride as a distinct "thing" doesn't exist, it is...

Fluoride is the anion F−*, the reduced form of fluorine when as an ion and when bonded to another element.

always in combination / compound with another element or elements )..don't try making your own textile capacitors at home..

[en.wikipedia.org...]

For those who didn't do an additional few years ( after the "a level" ) of chemistry..most of the fluorine compounds are in the "not to be messed with" category..

*Anion should be shown as a superscript - ( or an "overscore" ) ..this board doesn't like it :( ..so use F- instead..

[lorax]

>> how you recharge the shirt

You stand outside holding a large umbrella in a lightning storm. THe original Flash charge.

[Old_Honky]

Why stop at the T-shirt recharging through your underpants could be interesting, and have the benefit of a cosmetic enhancement illusion. Why not a recharging hat? That could also have a photovoltaic panel on the top.