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Beyond cover sheets and TPS reports–white copy paper could be the basis for lightweight, inexpensive batteries
Nanotechnologist Maria Strømme of Uppsala University in Sweden and her colleagues have also devised batteries with a paper made from seaweed. Because such paper had 100 times more surface area than that made from wood, it can hold dramatically more power, they reported in the October 14 Nano Letters.
One concern about the new sheets is their electrical resistances, which are some 10 times or more than those of the metal foils used as current collectors in conventional batteries. Such resistance slows the delivery of power. Cui suggests incorporating metal nanowires into their devices to lower resistance, thereby helping provide more electrical oomph.
Another major obstacle to implementing these findings is the current high price of carbon nanotubes. "However, carbon nanotube price will continuously drop as production ramps up," Cui notes. "The conductive paper concept can also be realized with other nanomaterials with potentially low cost, such as graphene."
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4 Comments
Add CommentThis may be the start of something big, hopefully we can follow the development of this novel idea. I remember when thin film solar, thin-film photovoltaic cell (TFPV), just came out with a novel idea -- printing them.
Reply | Report Abuse | Link to this"The silicon is mainly deposited by chemical vapor deposition, typically plasma-enhanced (PE-CVD), from silane gas and hydrogen gas. Other deposition techniques being investigated include sputtering and hot wire techniques.
The silicon is deposited on glass, plastic or metal which has been coated with a layer of transparent conducting oxide (TCO).
High speed roll-to-roll printing of polymer solar cells may potentially produce as many square meters of solar cells in an hour as a crystalline Silicon solar cell plant produces a year."
http://en.wikipedia.org/wiki/Thin_film_solar_cell
I'm sure there will be other methods to deposit carbon nanotubes for efficient electrical storage devices but this is just the beginning...
wouldn't making batteries out of paper be wasteing trees?
Reply | Report Abuse | Link to thisPaper can be made from many kinds of grass, including the original form, made by the ancient Egyptians from papyrus weeds. It can even be made from pond scum algae and/or grass clippings, garbage waste or recycled materials.
Reply | Report Abuse | Link to thisIf you want to create a smooth consistent coating on any substrate, you might consider screen printing. The thickness of the coating can be controlled from a few microns up to several layers to increase thickness.
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