Spray-On Battery

In today's mobile world, developers are continually looking for new and better ways to incorporate battery storage into portable devices. The latest is a lithium-ion battery that can be sprayed onto a surface.

The battery is constructed by spraying in layers and consists of five components - two current collectors, a cathode, an anode and a layer of polymer which acts as a separator. Once they are sprayed on, the layers are infused with electrolyte, heat sealed and charged.

The new form factor could also make solar power more practical by removing the need for large storage batteries. Because it uses standard spray-painting methods, it's also easily scalable for commercialization.