Solid lithium electrolyte via addition of lithium salts to metal-organic frameworks

摘要

Various embodiments of the invention disclose that the uptake of LiOiPr in Mg2(dobdc) (dobdc4−=1,4-dioxido-2,5-benzenedicarboxylate) followed by soaking in a typical electrolyte solution leads to a new solid lithium electrolyte Mg2(dobdc).0.35LiOiPr.0.25LiBF4.EC.DEC. Two-point ac impedance data show a pressed pellet of this material to have a conductivity of 3.1×10−4 S/cm at 300 K. In addition, the results from variable-temperature measurements reveal an activation energy of approximately 0.15 eV, while single-particle data suggest that intraparticle transport dominates conduction.

主权项

1. A solid lithium electrolyte comprising:
a metal-organic framework comprising Mg2(dobdc), wherein dobdc=1,4-dioxido-2,5-benzenedicarboxylate; and a lithium alkoxide comprising lithium isopropoxide (LiOiPr).