Spray-On Batteries: Anything Is A Power Source
Researchers at Rice University (Houston, US) have developed a technique for rechargeable spray-on batteries to be constructed from thin liquid layers for each component of the traditional battery: two current collectors, cathode, anode and polymer separator. Surely, so far there are some limitations to the technology, as difficult-to-handle liquid electrolytes, and the need to construct the battery in a dry and oxygen-free environment. However, the researchers have already successfully created power sources from glass, stainless steel, airbrushed ceramics, even on the curved surface of a ceramic mug. That means, this technique is a valuable asset is transforming various objects into smart ones, in the near future.