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A newly developed ionic-liquid- and silica-based gel electrolyte greatly improves both the energy and power density of flexible supercapacitors, say researchers at Korea University.

An insect's internal chemicals can be converted to electricity, potentially providing power for sensors, recording devices or to control the bug, a group of researchers at Case Western Reserve University report.

Researchers at the Polytechnic School of Montreal in Canada have built a battery that can be woven into a garment.

Within a few years, people in remote villages in the developing world may be able to make their own solar panels, at low cost, using otherwise worthless agricultural waste as their raw material.

Aerospace engineers from the University of Michigan in Ann Arbor have developed a prototype device that could power a pacemaker using vibrations in the chest cavity that are due mainly to heartbeats.

A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal of the research is to develop an all-electric highway that wirelessly charges cars and trucks as they drive down the road.

Promethean's Thermal Energy Battery is a technology aimed at bringing cold-storage infrastructure to emerging economies.