Isocyanate compounds as electrolyte additives for lithium-ion batteries

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

“…Explosive accidents, and fire related incidents, involving Li-ion batteries are still frequently recorded; however, most incidents appear to involve overcharging or overheating. In most cases the typical liquid electrolyte solutions used for lithium-ion batteries are organic solutions, such as ethylene carbonate (EC)-, ethyl methyl carbonate (EMC)-, di-methyl carbonate (DMC)-based solutions containing lithium salts such as LiPF 6 , LiClO 4 , and LiBF 4 . However, these liquid electrolytes are easily flammable.…”

“…Several kinds of additives have been proposed to improve the cell's overcharging performance and flame retarding ability. The use of redox shuttle additives seems to be an effective way to improve overcharging performance [6,7]. A redox shuttle is an electrolyte additive that can be reversibly oxidized-reduced at a characteristic potential to provide an intrinsic overcharge protection for lithium-ion batteries.…”

Application of 2-chloro-1,4-dimethoxybenzene and 4-fluoro-1,2-dimethoxybenzene additives in electrolyte for liquid state Al-plastic film lithium-ion batteries

“…Current developments are aimed at their use as power sources for electric vehicles. However, the safety of the batteries was still an issue, such as battery cracking, firing, and explosion were hazardous behaviors for the batteries, and a number of exothermal reactions occurred by voltage runaway during the late stage of overcharge [5,6]. In recent years, great efforts have been devoted to the development of overcharge protection mechanisms for rechargeable lithium batteries, such as electrolyte additives [7][8][9], special separators [10][11][12], using positive temperature coefficient [13][14][15], etc.…”

Effect of heptamethyldisilazane as an additive on the stability performance of LiMn2O4 cathode for lithium-ion battery

“…HF formation from the decomposition of LiPF 6 salt in the presence of trace water is believed in accelerating the Mn dissolution [10][11][12]. The addition of the stability additives to the electrolyte can suppress the capacity fading of LiMn 2 O 4 batteries and the cycling performance of lithium-ion battery with LiMn 2 O 4 as the cathode can be improved [13][14][15][16][17][18][19].…”