Effects of Difluoro(oxalato)borate-Based Ionic Liquid as Electrolyte Additive for Li-Ion Batteries.

ABSTRACT: In this work, the use of N-methyl-N-propylpiperidinium difluoro(oxalato)borate Pip₁₃DFOB ionic liquid (IL), originally synthesized in our laboratory, as an additive for liquid electrolytes in lithium-ion batteries (LIBs), is proposed. The synthesized IL exhibits glass and melting transitions at -70.9 °C and 17.1 °C, respectively, and a thermal decomposition temperature over 230 °C. A mixture based on 1.0 M LiPF₆ in 1:1 v/v ethylene carbonate (EC): dimethyl carbonate (DMC) electrolyte solution (so called LP30) and the IL was prepared and tested in lithium metal cells versus two different commercially available carbonaceous electrodes, i.e., graphite (KS6) and graphene (GnP), and versus a high voltage LiNi_0.5Mn_1.5O₄

SUBMITTER: Di Donato G 

PROVIDER: S-EPMC9967885 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature