Non-flammable solvent-free liquid polymer electrolyte for lithium metal batteries

Abstract As a replacement for highly flammable and volatile organic liquid electrolyte, solid polymer electrolyte shows attractive practical prospect in high-energy lithium metal batteries. However, unsatisfied interface performance and ionic conductivities are two critical challenges. A common strategy involves introducing organic solvents or plasticizers, but this violates the original intention of security design. Here, an electrolyte concept called liquid polymer electrolyte without any small molecular solvents is proposed for safe and high-performance batteries, based on the design of a room-temperature liquid-state brush-like polymer as the sole solvent of lithium salts. This liquid polymer electrolyte…

• NN
  National Natural Science Foundation of China

  Awards: B20001, 51773134
• SU
  Sichuan University

  Award: 2021SCUNL201
• HE
  Higher Education Discipline Innovation Project

  Award: B20001
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 2021SCUNL201, B20001