Cross-Linked Polyurethane Phase Change Materials Based on Multiple Hydrogen Bonds with Excellent Mechanical, Flame Retardant and Energy Storage Properties for Novel Battery Jackets

This study designs and synthesizes a novel battery jacket material (PXHM2) through the polyurethane condensation reaction using polyethylene glycol (PEG) and m-xylylene diisocyanate (XDI) as main components and ammonia-based flame retardant additives as cross-linking agents. PXHM2 demonstrates superior performance in terms of flame retardant, mechanical properties, and energy storage capacity compared to a traditional PVC jacket material. In the flame retardant experiment, PXHM2 only experiences mild charring and melting without the occurrence of combustion, highlighting its excellent flame retardant characteristic. Additionally, PXHM2 effectively absorbs heat during short-time high-load operation of the…

• NS
  Natural Science Foundation of Jiangxi Province

  Award: 20242BAB26063