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Bio-Friendly Energy Storage Device Draws Electrical Power From the Human Body #WearableWednesday

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Via Inhabitat

Humans are constantly on the go, so doesn’t it make sense to harness some of that kinetic energy? Scientists from UCLA and the University of Connecticut asked themselves that question, which eventually led to them developing an energy-storing device that can draw electrical power from the human body.

The biological supercapacitor is a protein-based battery-like device capable of extracting energy from the human body. A supercapacitor is a term used to describe a high-performance electrochemical capacitor (ECs), which is similar to batteries but has a much higher power density. Supercapacitors have faster char-discharge rates, lower internal resistance, higher power density and better cycling ability than batteries.

Once energy is obtained by the newly-developed energy storage device, it is then released inside an electrical circuit which looks similar to an implantable medical device. According to the paper Ultrathin Graphene – Protein Supercapacitors for Miniaturized Bioelectronics, which was published earlier this month, the supercapacitor utilizes a “harvester” that operates by using the body’s heat and movements to capture electrical charges from ions, which are found in human body fluids including blood and urine.

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