Perptetua Power Puck
The core technology uses an assembly of ultrathin thermocouples in a unique configuration that exploit small (>2°Celsius) temperature differences occurring naturally in the environment of the application (e.g. ground to air, water to air, or skin to air interfaces). The individual thermocouples, 1 cm high by 1.5 cm wide and a few micrometers thick, are deposited in a linked chain onto a thin, flexible plastic substrate, using sputtered thin-film deposition thermocouples to be assembled into products of all shapes and sizes. These devices generate useful energy from temperature differences as low as 1°C to 2°C, while larger temperature differences produce correspondingly larger outputs. The devices can also be designed to work regardless of which thermal side is warmer or cooler.
August 19, 2009 11:58 AM PDT
Photo by: Contributed by R&D Magazine
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