A team of researchers have developed a method to create homemade power sources using 3D printing and graphene. The team has produced prototype batteries with the same power as common AA batteries. The 3D technology can be used to manufacture batteries of any size or shape.
The key advantage of these new 3D-printed batteries is their flexibility, allowing them to be used in places with limited space. The batteries could be easily produced when needed using a 3D printer and a mixture of plastics and graphene. This mixture would then be heated before it is formed into a battery.