Fig. 1. Preparation method diagram of NCM811 coated with TiO₂

Fig. 2. SEM images of coated products with different amounts of tetrabutyl titanate

Fig. 3. SEM and elemental distribution spectrum of T-NCM811

Fig. 4. Comparison of SEM images of NCM before and after TiO₂ coating

Fig. 5. Comparison of TEM images of NCM before and after TiO₂ coating

Fig. 6. XRD patterns of NCM811 original sample and TiO₂ coated sample

Fig. 7. C80 test heat flow curve of NCM811 and T-NCM811

Fig. 8. Charge and discharge distribution of NCM811and T-NCM811 under different cycles

Fig. 9. Loop performance and first lap performance

Fig. 10. EIS spectra at different periods