Abstract
Abstract High energy density and safety are key issues of Li metal battery (LMB). A thin Li anode coupling with high voltage/high capacity cathode (NCM811) can increase the energy density of Lithium batteries. We have developed a fire retardant disiloxane based highly concentrated electrolyte which makes a coordinated Li+-FSI−-Solvent cluster to produce stable interphase on electrodes. This electrolyte shows reduced reactivity towards Li metal anode. The oxidation stability of electrolyte is high (5 V) and also shows less Al corrosion. The synergistic effect of additive makes inorganic ‘LiF’-rich dendrite free interphase. SEM analysis confirms dendrite free surface morphology. A Li metal full cell is fabricated with thin Li anode (20 μm, 4.12 mAh/cm2) and NCM811 cathode with moderate active material loading (1.1 mAh/cm2), providing a high energy density of 614 Wh kg−1 (based on total weight of anode and cathode excluding current collectors).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
