A porous nickel-fluoride film less than a micron thick, seen here in an electron microscope image, is an effective electrode in a new type of battery created at Rice University (Image: Tour Group/Rice University)
Tests on a flexible battery less than 200 microns thick showed it retains more than 76 percent of its energy capacity after 10,000 charge and discharge cycles (Image: Tour Group/Rice University)
Nickel-fluoride electrodes around a solid electrolyte are an effective energy storage device that combines the best qualities of batteries and supercapacitors, according to Rice University researchers (Image: Tour Group/Rice University)
A thin-film energy storage device, seen attached to a polymer backing, retains its battery- and supercapacitor-like qualities even after being flexed 1,000 times, according to tests at Rice University (Image: Tour Group/Rice University)
Rice University researchers have created a new flexible energy storage technology that uses no lithium – from left, postdoctoral researcher Yang Yang, Professor James Tour and graduate student Gedeng Ruan (Image: Tour Group/Rice University)
Rice University postdoctoral researcher Yang Yang holds an energy storage unit with the best qualities of batteries and supercapacitors in a scalable, flexible package (Image: Tour Group/Rice University)
Researchers at Rice University have created an ultra-thin, high-performance flexible battery that is lithium-free, only a hundredth of an inch thick, and also doubles as a supercapacitor. The technology could find use in mobile and wearable electronics such as smartphones and fitness bands.
Other Images from this Gallery