Intrinsically Safe Lithium Metal Batteries Enabled by Thermo‐Electrochemical Compatible In Situ Polymerized Solid‐State Electrolytes

In situ polymerized solid-state electrolytes have attracted much attention due to high Li-ion conductivity, conformal interface contact, and low interface resistance, but are plagued by lithium dendrite, interface degradation, and inferior thermal stability, which thereby leads to limited lifespan and severe safety hazards for high-energy lithium metal batteries (LMBs). Herein, an in situ polymerized electrolyte is proposed by copolymerization of 1,3-dioxolane with 1,3,5-tri glycidyl isocyanurate (TGIC) as a cross-linking agent, which realizes a synergy of battery thermal safety and interface compatibility with Li anode. Functional TGIC enhances the electrolyte polymeric level. The unique carbon-formation…

• NN
  National Natural Science Foundation of China

  Awards: 22209014, 22075029
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: 2021YFB2500300
• NS
  Natural Science Foundation of Beijing Municipality

  Award: L223009
• FR
  Fundamental Research Funds for the Central Universities

  Award: 2023CX01031