- Researchers in Sweden have developed power paper — a new material consisting of nano-cellulose and a conductive polymer with an outstanding ability to store energy.
- Each sheet is 15 cm in diameter and a few tenths of a mm thick and can store energy similar to the super-capacitors currently on the market.
- The structural foundation of the material is nano-cellulose or cellulose fibres which, using high-pressure water, are broken down into fibres as thin as 20nm in diameter.
- With the cellulose fibres in a solution of water, an electrically charged polymer, also in a water solution, is added. The polymer then forms a thin coating around the fibres.
- Power paper is made from renewable cellulose and an easily available polymer.
(Source URL: http://www.thehindu.com/todays-paper/tp-national/now-rechargeable-paper-that-can-store-energy/article7950322.ece)