Methyl phenyl bis-methoxydiethoxysilane as bi-functional additive to propylene carbonate-based electrolyte for lithium ion batteries

Improvement in safety and cycle life of lithium-ion batteries by employing quercetin as an electrolyte additive

“…2(d) and (e) is the CV curves of the graphite electrode in the bare electrolyte with and without 0.1 wt.% quercetin added. For the electrolyte without quercetin, the oxidation peak observed near 0.2 V in the first cycle agrees with the common carbon or graphite electrodes [16]. A small reduction peak showed at about 0.7 V that disappeared in the second scan may be ascribed to the decomposition of the electrolyte solvent.…”

Additives for Functional Electrolytes of Li-Ion Batteries

“…Nitrogen-containing heterocyclic compounds with fluorinated substitutions have also been reported as new flame retardant additives [61,62]. Finally, a silane compound, methyl phenyl bismethoxydiethoxysilane, has been reported to serve as both the SEI formation additive and flame retardant additive [79].…”

Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode

“…3. In the Nyquist plots, the semicircles at high frequency are related to the SEI film resistance and the impedance of lithium ion transport through the interphase of electrolyte and electrode (Hao et al, 2010;Li et al, 2011). The SEI film resistances of the cells with 5%, 10%, and 15% additions were 14.0 Ω, 15.0 Ω, and 15.5 Ω, respectively, as compared with higher values of 18.0 Ω and 17.7 Ω for the cell without and with 20% addition in the electrolyte, respectively.…”

“…Some organosilicon compounds have already been developed as functional electrolyte additives such as film forming (Markovsky et al, 2004;Schroeder et al, 2006a;2006b;Ryu et al, 2008;Xia et al, 2008;Song and Baek, 2009;Walkowiak et al, 2008;Li et al, 2011), and flame retardant (Zhang et al, 2009;Li et al, 2011) additives. To date, phenyl-functionalized silane (Xia et al, 2008;Li et al, 2011), polyetherfunctionalized disiloxanes (Walkowiak et al, 2008; and silicon tripodands (Schroeder et al, 2006a;2006b) have been reported as additives in propylene carbonate (PC)-based electrolytes for graphite anodes to prevent exfoliation of the graphite.…”

“…With the increasing demand for electric vehicles (EVs), much effort has been devoted to developing LIBs with long cycling life and high rate capacity (Hao et al, 2010;Li et al, 2011).…”