Atomic and Molecular Structure Regulated In Situ Cross‑Linked Polyurethane Gel Electrolyte for High‑Performance Lithium Metal Batteries (IMAGE)

Shanghai Jiao Tong University Journal Center

Atomic and Molecular Structure Regulated In Situ Cross‑Linked Polyurethane Gel Electrolyte for High‑Performance Lithium Metal Batteries

Caption

  • Hybrid polyester/polyether segments simultaneously enable high-voltage stability (4.97 V) and fast Li+ desolvation in Li||NCM811 batteries for both cathode and anode compatibility.
  • The sp2-hybridized boron Lewis acid centers anchor anions via acid-base interactions, boosting Li+ transference number to 0.78 and enhancing rate capability (157.7 mAh g−1 at 2 C).
  • Hydrogen bonding restructures solvation sheath, promoting anion-derived inorganic-rich solid electrolyte interphase/cathode electrolyte interphase that delivers 81.7% capacity retention after 500 cycles.

Credit

Jialun Ni, Yong Zeng, De Ning, Xuan He, Xiaokang Ju, Xueling Liu, Rui Gao, Yingchun Xu, Ruijie Du, Dong Zhou*, Jun Wang*, Yongli Li*.

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License

CC BY-NC-ND

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