Swedish scientists have created ultra-thin battery on the basis of green algae

Monday, November 30, 2009

It is known that various types of batteries, are present on the market today, have several "generic vices, among which one of the first places is their volume and weight, as well as problems with disposal. Get rid of these shortcomings, a new type of battery will set up a team of researchers from the Swedish University of Uppsala.

In batteries, developed by Swedish scientists used Kladofora green alga (Cladophora), widely distributed in various regions of the world and often difficult navigation. Rotting layers of algae are often "decorated", for example, the Baltic and Black Seas.

Swedish scientists have found that algae Kladofora have a very unusual structure with a large specific surface area, which can be used as a storage device. Enough to cover its fiber with a layer of conductive polymer Polypyrrole thickness of only a few tens of nanometers in order to obtain the ultra-thin and still very effective electrode.

Batteries based on green algae Kladofora have little weight, but their thickness does not exceed a sheet of plain paper. Thus they are quite cheap to produce, quickly charged and have a much higher capacity compared to modern polymer batteries. And in the further development they may be competitive and market presence Lithium batteries.

Among other things, the batteries on the basis of algae virtually non-polluting and, therefore, easy to disposal. Their scope may be the most diverse - from mobile devices and flexible electronics to wrapping paper, which highlights Happy New Year or birthday.