Nature Energy, Published online: 20 August 2026; doi:10.1038/s41560-026-02112-8

Lattice-oxygen redox can raise the energy density of layered oxide cathodes, but poor reversibility causes structural degradation and capacity loss. Here the authors use iron as a bulk redox mediator to boost oxygen-redox reversibility and stabilize high-energy sodium-ion batteries.

Nature Energy, Published online: 09 June 2026; doi:10.1038/s41560-026-02097-4

Author Correction: Stable tin–lead perovskite inks for efficient all-perovskite tandems

Nature Energy, Published online: 26 May 2026; doi:10.1038/s41560-026-02077-8

Low-bandgap tin–lead perovskites can boost solar cell efficiency but degrade quickly due to tin oxidation. Here the authors add proton-scavenging additives that stabilize inks for over 300 days, enabling 24.06% single cells and 29.56% certified tandem efficiency.