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Electrolytes in liquid form are used in lithium-ion batteries. It extends battery life and boosts cell performance while allowing lithium ions (Li+) to flow between the anode and cathode and stabilising their surfaces.
As one of the crucial four elements of a battery, it plays an important role.
The Global Lithium ion battery electrolyte solvent market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
Electrolyte Solutions for Rechargeable Li-Ion Batteries Based on Fluorinated Solvents.Lithium was used as the anode and Li1.2Mn0.56Co0.08Ni0.16O2 as the cathode in high-voltage Li-ion cells, which explored electrolyte solutions based on fluorinated solvents.
Fluorinated cosolvents were used in place of the traditional alkyl carbonate solvents in the electrolyte solutions to achieve excellent performance.
The cycling behaviour of the cells charged up to 4.8 V was significantly enhanced by replacing EC with DEC and their fluorinated counterparts, FEC, 2FEC, and fluorinated ether (F-EPE).
The improvement is credited to the cathode particles developing a stable and protective surface coating as a result of special surface processes made possible by the fluorinated solvent molecules.
The active mass, which is highly reactive toward the electrophilic alkyl carbonates, is shielded from ongoing adverse interactions with solution species by the surface coatings that form on the lithiated transition metal oxide cathodes.
Experiments using complete graphite-Li1.2Mn0.56Co0.08Ni0.16O2 cells took advantage of the beneficial effects of fluorinated electrolyte solutions on the performance of high-voltage cathodes.
Excellent cycling performance was seen with solutions containing 1% TMSP, tris(trimethylsilyl)-phosphate, and 2FEC, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (F-EPE), which also produced excellent results with Li-Li1.2Mn0.56Co0.08Ni0.16O2 cells in shorter tests.
This electrolyte solution is an excellent candidate for other high-voltage cathode materials due to its remarkable electrochemical stability.
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