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Submission + - Spray-on batteries turn ordinary household objects into objects with batteries (nature.com)

boneglorious writes: As reported in Slate (http://tiny.cc/ne9ngw) a team from Rice University report in the most recent issue of Nature (http://tiny.cc/is9ngw) that they have formulated the components of rechargable batteries into a liquid with which they then coated objects in such a way as to duplicate the layered dipole structure of a battery.

This technique was applied to a number of substrates, including glazed ceramic tile and an ordinary beer mug. The battery was then connected to a charging source. I take some issue with the Slate headline because the beer mug did not actually "become a power source" in that the battery itself was then connected to a solar cell for charging. However, my main concern is that the graduate students have not yet begun selling the obvious product, rechargable reheating coffee mugs, on thinkgeek where I can purchase one yet. Unfortunately for my daily displeasure at discovering my caffeine source has grown cold, this is currently a rather expensive process due to the safety risks of the caustic chemicals involved, and to the sensitivity of the constituents to oxygen and moisture.

Submission + - Spray-on batteries turn ordinary household objects into objects with batteries (nature.com)

boneglorious writes: As reported in Slate (http://tiny.cc/ne9ngw) a team from Rice University report in the most recent issue of Nature (http://tiny.cc/ph9ngw) that they have formulated the components of rechargable batteries into a liquid with which they then coated objects in such a way as to duplicate the layered dipole structure of a battery.

This technique was applied to a number of substrates, including glazed ceramic tile and an ordinary beer mug. The battery was then connected to a charging source. I take some issue with the Slate article because the beer mug did not actually "become a power source" in that the battery itself was then connected to a solar cell for charging. In addition to the obvious application of making rechargable reheating coffee bugs, this could also be applied to actual power sources. However, due to the safety risks of the caustic chemicals required and the sensitivity of the constituents to oxygen and moisture, this is currently a rather expensive process.

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