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Finite Analysis Simulation of a Lithium Metal Battery with Metal Organic Framework (MOF) Layer using COMSOL Multiphysics

  • Donnelly, Campbell
Publication Date
Jan 01, 2021
eScholarship - University of California
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Lithium Metal Batteries (LMBs) pose themselves as a key contender to increasing the energy density and specific energy of Lithium Ion Batteries (LIBs). This would both decrease cost and increase scope of application and versatility for LIBs across a range of weight and volume sensitive applications. However, lithium dendrite growth poses a key obstacle to LMB commercialization, decreasing cycle life and safety. A novel method published by Wu et al. (2020), involving the formulation of a MOF-based SSI layer, has shown promising results both in dendrite growth suppression and electrochemical performance of LMBs. A Finite Analysis Method simulation was created and investigated in COMSOL Multiphysics to model the MOF layer LMB vs. control. Significant electrolyte concentration and potential polarization reductions were achieved with the MOF layer addition. In addition, higher specific capacities were demonstrated even on a single cycling, especially at higher C rates.

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