• flexible batteries;
  • polymer electrolytes;
  • deformability;
  • crosslinked polymer matrix;
  • nonwoven skeleton
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Thin, deformable, and safety-reinforced plastic crystal polymer electrolytes for use in high-performance flexible lithium-ion batteries with aesthetic versatility and robust safety features is reported on page 44 by S.-Y. Lee and co-workers. The combination of a plastic crystal polymer electrolyte matrix with a compliant nonwoven skeleton enables the fabrication of the innovative polymer electrolyte with optimized attributes. The cell assembled with the polymer electrolyte exhibits stable electrochemical performance under severely deformed states (even a wrinkled state), without suffering from internal short-circuit failures.