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Rapidly increasing demand for energy density in consumer electronics is eager for developing high‐voltage LiCoO2 (LCO). However, some great challenges such as severe phase transition and surface instability negate the cycle life of LCO operated at high‐voltages (≥4.6 V). Herein, a chemical reconstruction strategy is proposed to form a collective surface of LCO through an interdiffusion reaction of...
Perovskite has been widely applied in the optoelectronic field due to its strong light absorption and high carrier mobility. Maintaining high crystallization is critical to fabricate high‐performance perovskite devices, where many methods have been reported, such as the use of additives in precursor solutions. However, there are few reports for the working mechanism of these additives. Herein, a new...