But camera makers will still charge $80+ each for the batteries...

"Rich" wrote in message
...
Battery made of paper charges up

Batteries made from plain copier paper could make for future energy
storage that is truly paper thin.

The approach relies on the use of carbon nanotubes - tiny cylinders of
carbon - to collect electric charge.

While small-scale nanotube batteries have been demonstrated before,
the plain paper approach lends itself to making larger devices more
cheaply.

Batteries for DSLRs are an expensive rip-off with batteries for Sony DSLRs
being the most expensive.