Paper Thin Batteries

can be activated by blood, sweat, tears . . .

[lawman]

. . . or even urine.

[news.bbc.co.uk...]

Because the battery consists mainly of paper and carbon, it could be used to power pacemakers within the body where conventional batteries pose a toxic threat.

"I wouldn't want the ionic liquid electrolytes in my body, but it works without them," said Professor Linhardt. "You can implant a piece of paper in the body and blood would serve as an electrolyte."

[engine]

I didn't realise how interesting these batteries were, until looking more deeply. This is quite a development.

[justgowithit]

I would think that using paper batteries in applications like an automobile would cause a bit of a fire-hazard that would have to be addressed.

[lawman]

I guess if your car caught on fire, you could just get out and take a whiz on it. Would put out the fire and charge your batteries at the same time. ;)

[justgowithit]

Ahhhhh Yes.

The problem has already been solved. I guess when life gives you lemons you should just pee on them.

[steve]

I guess when life gives you lemons you should just pee on them

Or stick two bits of dissimilar metal in them and connect a small bulb!