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The University Of Illinois Helped Develop A 3D GOn Coating That Inhibits The Formation Of Lithium Dendrites

- Jan 15, 2019 -

Foreign media reported that although lithium metal batteries have theoretical advantages such as large capacity and lowredoxpotential, in practical application, lithium metal anodes are prone to Dendriticgrowthoflithium dendrites.

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Researchers at the university of Illinois at Chicago (UniversityofIllinoisatChicago) with the university of Texas a&m (TexasA&MUniversity) colleagues using 3 d graphene oxide nanometer conformal coating (3 dconformalgrapheneoxidenanosheetcoating, GOn), and turn it into glass fiber clapboard (glassfiberseparator) fabric structure, enables lithium ion mobility within the structure, It also inhibits the formation of lithium dendrites.

Its research results published in the journal of advanced functional materials (AdvancedFunctionalMaterials), claimed that the service life of the lithium battery anode and stability got & other The security risks are significant. . Initio molecular dynamics (Abinitiomoleculardynamics, AIMD simulation results show that the lithium lithium ion will be initially kiss (lithiophilicGOn) absorption, and then through the defect in the space (absence, defectsites) proliferation, migration of delayed lithium (ion) (Litransfer), aimed at eliminating & other; End effect (tipeffect) ” To prevent homogenous lithium nucleation.

At the same time, during the AIMD simulation, carbon-carbon bonds. The breakdown of Cbonds would create more avenues to speed up the transmission of lithium ions. In addition, phase-field modeling (fieldmodel)