Better batteries are popping up regularly these days, and this one's on its way to the real world within six months. Some German smarty-pants researchers figured out how to slather together reactive layers that can magically create power, but the trick is that all the necessary components put together are less than a millimeter thick.
The secret? They're using manufacturing techniques that are similar to printing.
Imagine the devices that this 1.5 W power source could enable. Sure, you might need a few of them to power a cell phone, but there could be outlandishly flat handheld gadgets in our future if these batteries really are ready to go before the end of this year. Amazing. Maybe they should call them "flatteries".