A solid lithium electrolyte via addition of lithium isopropoxide to a metal-organic framework with open metal sites |
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| Authors: | Wiers Brian M Foo Maw-Lin Balsara Nitash P Long Jeffrey R |
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| Institution: | Department of Chemistry, University of California, Berkeley, California 94720, USA. |
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| 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. |
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