<p>➀ Researchers from China have proposed adding a soluble catalyst to lithium-air batteries to improve their performance and lifespan.</p><p>➁ The new imidazolyl-iodide salt (DMII) acts as a redox mediator that facilitates charge transport and prevents electrode passivation.</p><p>➂ Tests show promising results with reduced overpotential, high cycle stability, and reversible formation/decomposition of Li2O2 without side reactions.</p>