Na2.3Cu1.1Mn2O7−δ nanoflakes as enhanced cathode materials for high-energy sodium-ion batteries achieved by a rapid pyrosynthesis approach

Na_2.3Cu_1.1Mn₂O_7−δ nanoflakes prepared by an ultrafast pyrosynthesis approach are used as the positive electrode for SIBs. In situ GITT and XRD results support the occurrence of a single-phase reaction in the Na_2.3Cu_1.1Mn₂O_7−δ nanoflakes cathode during Na⁺ (de)intercalation.