Triethyl 2-(1,3-oxazolidin-3-yl)ethyl orthosilicate as a new type electrolyte additive for lithium-ion batteries with graphite anodes

摘要

Triethyl 2-(1,3-oxazolidin-3-yl)ethyl orthosilicate (OZOS) has been studied as an additive to the 1M LiPF_6/EC:EMC:DMC;PC (3:6:1:1) electrolyte of lithium-ion battery with graphite anode by cyclic voltammetry and chronopotentiometry. The above additive in amounts of 0.25, 0.5, and 1.0 wt. percent increases the first cycle efficiency (ratio of charge to discharge capacity) by 0.4-1.0 percent as compared to the base electrolyte.