Chinese scientists suggested using black holes as batteries: How possible is that?

Chinese scientists from the Institute of Astronomy and Astrophysics at Peking University have proposed a method that could eventually allow humanity to use black holes as sources of energy, effectively charging them like batteries. The research has been published in the scientific journal Physical Review D (PRD).

According to the calculations of the scientists, it is theoretically possible to charge a black hole by directing massive electrically charged particles into it. These charges would be absorbed until the black hole develops an electric field that repels new portions of matter.

The scientists claim that a black hole could convert approximately 25% of its mass into energy that could be harnessed. Such a source could produce about 250 times more energy than is released in the detonation of an atomic bomb.

Researchers propose extracting energy using a process known as super-radiance, based on the theory that some electromagnetic waves can escape a black hole's gravitational field due to its rotation.

Another method of utilizing black holes involves extracting energy in the form of Schwinger pairs, or paired particles that spontaneously form in the presence of an electric field. If a black hole is fully charged, it would start emitting streams of positrons, which could then be collected as energy.

While these proposals from scientists remain theoretical for now, in the future, humanity may discover ways to leverage some of the most enigmatic objects in the universe for its benefit.