This review gives a full-scale and in-depth summary of CsPbI₂Br perovskite materials for the photovoltaic applications.

LiFePO₄ (LFP) is one of the cathode materials widely used in lithium ion batteries at present, but its electronic conductivity is still unsatisfactory, which will affect its electrochemical performance. Ga-coated LiFePO₄@C ([email protected]) samples were prepared by a hydrothermal method and ultrasonic dispersion technology. Ga has good electrical conductivity and can rapidly conduct electrons within the LFP cathode material under the synergistic effect with C coating, thus improving the dynamic performance of the LFP cathode material. The experimental results show that [email protected]/Ga samples exhibit good electrochemical performance. Compared with the pristine [email protected], the 1.0 wt % Ga-coated [email protected] cathode exhibits excellent discharge capacity and cycle stability. The former shows a discharge capacity of 152.6 mA h g^–1 at 1 C after 100 cycles and a discharge capacity retention rate of 98.77%, while pristine [email protected] shows only a discharge capacity of 114.5 mA h g^–1 and a capacity retention rate of 95.84% after 100 cycles at 1 C current density.