Abstract
Superoxide-related parasitic reactions and high overpotentials are two major challenges to limit the practical application of Li-O2 batteries. Herein cerium iodide (CeI3) is used as a bifunctional redox mediator to solve the above two challenges together. CeI3 dissolved in the liquid electrolyte is ionized into Ce3+ and I−. The Ce3+ ions as superoxide radical scavenger capture the superoxide radicals. At the same time, the I− ions act as redox mediator to dissolve the Li2O2 solids on the cathode. As a consequence, the cycle life of the Li-O2 battery with CeI3 showed remarkably improved compared to the battery without CeI3.
Sign-in/Register to access full text options 
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.
