We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium−oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li 2 O 2 growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium− oxygen batteries.