Fujifilm Sheet Converts Body Heat To Electricity

25 February 2013 - 11:34 am

-Fujifilm Corp. and the National Institute of Advanced Industrial Science and Technology (AIST) have developed a resin sheet that generates electricity, utilizing the temperature difference between human body and the air.

The power-generating sheet developed by Fujifilm and AIST could be used to provide additional power for portable devices.

The sheet uses the thermoelectric effect, which generates a voltages due to the temperature difference between the surface of an object and its reverse side. The sheet is 0.4mm thick and soft. In a normal environment, the temperature of the air is lower than that of the human body or the surface of clothes. That temperature difference can be used to generate a steady flow of electricity.

It can be used as an additional power source for portable devices by attaching it to a human body or clothes. Heat emitted from TVs, steam in a bathroom, curtains in sunlight or a car’s body can also be used to generate electricity.

A postcard-size sheet can generate a few milliwatts of electricity. Developers aim to commercialize the product within five years, after improving its performance and durability. One possible early application would be as a power source for a cardiac and blood-pressure monitor.

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