MXene-derived TiO₂/RGO composite was designed and synthesized by the hydrothermal process as a universal anode for Li-ion and K-ion batteries.

A photoassisted chargeable Li–O ₂ battery is developed by integrating a g-C ₃ N ₄ photocatalyst, which delivers an ultralow charging voltage of 1.9 V.

We present a Na-rich layered cathode, Na₃RuO₄ (Ru⁵⁺), with solo oxygen-related anionic redox activity, which can be utilized as a prototype for electrode design in sodium-ion battery.