• • MP46 achieves a 5.1 V electrochemical window, enabling high-voltage LiCoO2 cycling with 92.1% capacity retention after 200 cycles at 4.5 V; this directly addresses oxidative instability that limits conventional PMMA-based electrolytes to <4.0 V.
• • Stable lithium plating/stripping for >800 h at 0.2 mA·cm–2 with no dendrite-induced short circuit; the hierarchical ionic network suppresses dendrite nucleation, a critical failure mode in high-energy-density SLMBs.
• • LiFePO4 cells retain 80.1% capacity after 1400 cycles at 2 C, demonstrating long-term cycling stability; this exceeds typical polymer electrolyte performance (<70% after 1000 cycles) and supports industrial viability for EV and grid storage.
• • Pouch-type cells maintain operational safety under mechanical deformation, validating flexibility for wearable and conformable battery applications; this mechanical robustness is absent in rigid ceramic electrolytes.