A solid lithium electrolyte via addition of lithium isopropoxide to a metal-organic framework with open metal sites

Brian M Wiers; Maw-Lin Foo; Nitash P Balsara; Jeffrey R Long

doi:10.1021/ja205827z

A solid lithium electrolyte via addition of lithium isopropoxide to a metal-organic framework with open metal sites

J Am Chem Soc. 2011 Sep 21;133(37):14522-5. doi: 10.1021/ja205827z. Epub 2011 Aug 30.

Authors

Brian M Wiers¹, Maw-Lin Foo, Nitash P Balsara, Jeffrey R Long

Affiliation

¹ Department of Chemistry, University of California, Berkeley, California 94720, USA.

PMID: 21877685
DOI: 10.1021/ja205827z

Abstract

The uptake of LiO(i)Pr in Mg(2)(dobdc) (dobdc(4-) = 1,4-dioxido-2,5-benzenedicarboxylate) followed by soaking in a typical electrolyte solution leads to the new solid lithium electrolyte Mg(2)(dobdc)·0.35LiO(i)Pr·0.25LiBF(4)·EC·DEC (EC = ethylene carbonate; DEC = diethyl carbonate). 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 just 0.15 eV, while single-particle data suggest that intraparticle transport dominates conduction.