posted on Jul, 18 2013 @ 07:32 AM
Now this is interesting.
A battery made from wood coated with carbon nanotubes using sodium.
Everything there is very cheap to get. I'll be it's easy to make and very renewable.
I hope this gets some traction and is a good alternative to Li-Ion batteries.
I really wasn't sure what a wood battery would look like. I knew you could make a battery out of a potato and wires, so I figured maybe they were
doing something similar with a block of wood.
Wrong. The "wood" is actually microscopic wood fibers that are fashioned into thin sheets. The sheets are then coated with carbon nanotubes and packed
into small metal discs.
The wood batteries use sodium ions, rather than the lithium ions that are found in the batteries of cellphones and laptops. In this case, the charged
particles move around in the wood fibers, creating an electric current. It turns out wood is a good medium for sodium ions to move around in.
Now, wood is comparatively cheap. So is sodium. Liangbing Hu, head of the battery project, says he's hoping the new batteries can be scaled up so
they'll be useful for storing the vast amounts of energy generated by solar arrays or wind farms.
edit on 18-7-2013 by
grey580 because: (no reason given)