Interfacial reactions in lithia-based cathodes depending on the binder in the electrode and salt in the electrolyte.

ABSTRACT: Lithia (Li₂O)-based cathodes, utilizing oxygen redox reactions for obtaining capacity, exhibit higher capacity than commercial cathodes. However, they are highly reactive owing to superoxides formed during charging, and they enable more active parasitic (side) reactions at the cathode/electrolyte and cathode/binder interfaces than conventional cathodes. This causes deterioration of the electrochemical performance limiting commercialization. To address these issues, the binder and salt for electrolyte were replaced in this study to reduce the side reaction of the cells containing lithia-based cathodes. The commercially used polyvinylidene fluoride (PVDF) binder and LiPF₆ salt in the electrolyte easily generate such reactions, and the subsequent reaction between PVDF an

SUBMITTER: Im HJ 

PROVIDER: S-EPMC8752660 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature