Spray-on lithium-ion batteries could shape the next generation of portable electronics
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Rice University graduate student Charudatta Galande wires an array of LEDs to a set of batteries painted on the surface of ceramic tiles (Photo: Jeff Fitlow/Rice University)
Rice University graduate student Charudatta Galande, Professor Pulickel Ajayan and graduate student Neelam Singh show off the first test device for their paintable batteries (Photo: Jeff Fitlow/Rice University)
Conventional lithium-ion batteries wrap active layers into a canister or other portable container, but Rice University researchers have found a way to paint those layers onto any surface (Photo: Neelam Singh/Rice University)
An electron microscope image of a spray-painted lithium-ion battery developed at Rice University shows its five-layer structure (Photo: Ajayan Lab/Rice University)
A beer stein served as a substrate for the paintable battery developed at Rice University (Photo: Jeff Fitlow/Rice University)
Ceramic tiles coated with battery paint and then heat-sealed powered LEDs spelling out "RICE" for six hours (Photo: Jeff Fitlow/Rice University)
Article Summary
While battery technology has come a long way in recent years, it still places constraints on the size and shape of cellphones and other personal electronic devices. Researchers at Rice University are looking to solve this problem by developing a rechargeable lithium-ion battery that can be painted on virtually any surface ... and early results are promising.
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