Justice League Action - Season 1 - Eps 12: Repulse!
Superman has been infected by the "Repulse", who was revealed as Lex Luthor, and has now become the new Repulse. As Wonder Woman and Hawkman try to find a way to save him, Superman must remove those nanobots from his body by sending them into a black hole before he gets pulled into it as well.
About Justice League Action

Title: Justice League Action
First Air Date: 2016-12-16
Last Air Date: 2018-02-10
Status: Ended
Rating: 7/10 (from 84 votes)
Language: EN
Seasons: 2
Total Episodes: 52
Network: Cartoon Network
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy, Kids
Production Companies: DC Entertainment, Warner Bros. Animation
Synopsis
Batman, Superman and Wonder Woman lead the DC Super Heroes against their most infamous foes.