Black Holes Can Be Turned Into Batteries?

Zhan Feng Mai, a postdoctoral researcher at the Kavli Institute for Astronomy and Astrophysics at Peking University, recently published a study proposing two different ways it may be possible to use black holes as an energy source someday. Mai’s predicted processes utilize the rotational and gravitational properties of black holes to extract excess energy. 

According to Zhan Mai, “We (researchers) know that we can extract energies from black holes, and we also know that we can inject energy into them, which almost sounds like a battery.” Mai proposed two different methods for transforming the power of black holes into a supercharged battery.