Paintable battery

Research by Neelam Singh, Charudatta Galande, Andrea Miranda, Akshay Mathkar, Wei Gao, Arava Leela Mohana Reddy, Alexandru Vlad and Pulickel M. Ajayan. From Innovation News:

The rechargeable lithium-ion batteries now found in many mobile phones and laptops may one day be sprayed like paint onto virtually any surface, potentially ushering in a new generation of thin, flexible devices, researchers say.

Spray-paintable batteries even might become available to the general public someday at hardware stores, the scientists added.

Lithium-ion batteries power most portable electronics nowadays, but their spiral, jelly-roll-like design generally limits them to rectangular or cylindrical shapes.

Now researchers have succeeded in painting these batteries onto a diverse range of surfaces, including glass slides, stainless steel, flexible plastic sheets, glazed ceramic tiles, and even the curved side of a beer mug.

“We can convert almost any object to a battery,” Neelam Singh, a materials scientist at Rice University in Houston, told InnovationNewsDaily. More:

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