Structural optimization of VO 2 /NH 4 V 4 O 10 cathode materials for high-performance wide-temperature zinc-ion batteries

In this study, we design a synergistic modulation strategy for preparing VO 2 /NH 4 V 4 O 10 electrodes by doping with Ce ions. The resulting batteries provide a stable capacity at −20 °C and maintain a capacity retention rate of 92% after 1500 cycles.