fig6

Figure 6. Polymeric binder development for high-voltage stabilization of NCM cathodes. (A) Schematic illustration of bonding mechanisms in NCM523 cathodes using PVDF and MPDMS/PVDF binders. (B and C) SEM images of electrodes after 100 cycles with (B) PVDF and (C) MPDMS/PVDF binders (insets: high-resolution SEM). (D) LSV curves of electrodes with different binders at a scan rate of 0.5 mV s^-1. (E) ICP-OES analysis of metal ions dissolved into the electrolyte from PVDF- and MPDMS/PVDF-based electrodes. Reproduced with permission^[96]. (F) Schematic diagram of interfacial stabilization in NCM622 cathodes using PVDF and P(VDF-g-VPh) binders. (G) XPS spectra of O 1s and P 2p regions. (H) ¹H NMR spectra of baseline and cycled electrolytes. (I) Comparison of TM dissolution in PVDF- and P(VDF-g-VPh)-based electrodes after 100 cycles. Reproduced with permission^[97].