Stories tagged ultracapacitor

Aug
27
2007

Paper batteries you can bend and cut.

Paper battery
Paper battery
Made from 90 percent cellulose plus carbon nanotubes acting as electrodes, this paper like composite acts either as a battery or as a supercapacitor. No water is needed so this material can function from 100 below zero up to 300 degrees Fahrenheit.

Along with use in small hand held electronics, the paper batteries’ light weight could make them ideal for use in automobiles, aircraft, and even boats. The paper also could be molded into different shapes, such as a car door, which would enable important new engineering innovations.
“Plus, because of the high paper content and lack of toxic chemicals, it’s environmentally safe,” Shaijumon said.

Print batteries by the roll.

The team has not yet developed a way to inexpensively mass produce the devices. The end goal is to print the paper using a roll-to-roll system similar to how newspapers are printed.

Read more.

Details of the project are outlined in the paper “Flexible Energy Storage Devices Based on Nanocomposite Paper” published Aug. 13 in the Proceedings of the National Academy of Sciences.

Source: Rensselaer Polytechnic Institute press release.