Development of Boron-Containing Electrolyte Additive for Lithium-Ion Batteries


Sarıgöl Z., Özkan G., Özkan G.

Journal of Electrochemical Energy Conversion and Storage, cilt.21, sa.3, ss.31005-31012, 2024 (Hakemli Dergi)

Özet

In this study, triphenylphosphine boron trifluoride (BF3.PPh3) was synthesized to be used as an
electrolyte additive in Li/LiCoO2 half-cells. FTIR, XPS, XRD, and NMR analysis techniques
were used to determine the structure and composition of the synthesized substance. The battery
performance was investigated by adding certain amounts of BF3.PPh3 in 1 M LiPF6-
EC/DMC/DEC (1:1:1 by volume) electrolyte. CR2032 coin cells were assembled with the
electrodes and electrolytes prepared in the laboratory. The electrochemical behaviors of the
battery were investigated via cyclic voltammetry and charge-discharge test. The addition of
0,5% wt and 1% wt BF3.PPh3 in the electrolyte improved the ionic conductivity and the capacity
retention of the lithium-ion battery. The results show that BF3.PPh3 has potential applications
in lithium-ion batteries.