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Bimetallic composites exhibit great potential as anode materials in advanced energy storage systems owing to their inherent tunability, cost‐effectiveness, and simultaneous achievement of high specific capacity and low reaction potential. However, simple biphase mixing often fails to achieve satisfactory performance. Herein, an innovative stress self‐adaptive bimetallic stellar nanosphere (50–200 nm)...
Layered manganese‐based oxides (LMOs) are promising cathode materials for sodium‐ion batteries (SIBs) due to their versatile structures. However, the Jahn–Teller effect of Mn3+ induces severe distortion of MnO6 octahedra, and the resultant low symmetry is responsible for the gliding of MnO2 layers and then inferior multiple‐phase transitions upon Na+ extraction/insertion. Here, hexagonal P2‐Na0.643...
Layered oxide cathodes for sodium‐ion batteries (SIBs) have drawn increasing attention owing to their fascinating additional capacity contributed by oxygen‐redox chemistry. Unfortunately, excessive oxygen redox incurs an irreversible oxygen release, deteriorating the cyclic stability and compromising the advantage of additional capacity. Significant efforts have been made so far to stabilize lattice...