Thiophene-2-carbonitrile: a bifunctional electrolyte additive to improve the performance of lithium-ion batteries

The demand for efficient large-scale energy storage necessitates high-energy-density batteries, making research on high-voltage electrolytes particularly important. In this article, ethyl isopropyl sulfone (ES), which has a high dielectric constant, is added to traditional carbonate-based electrolyte solvents and analyzed. Based on calculated and analyzed results, different proportions of ES are added to the conventional carbonate-based electrolyte. The high-voltage performance, the influence on the surface of the electrode, the active material structure after cycling, the electrochemical behavior, and the impedance of the electrode were studied systematically. As a result, ES addition is applied in high-voltage lithium-ion batteries and exhibits excellent electrochemical properties. These results will provide support for the research and application of sulfone additives in increasing the decomposition voltage of lithium-ion battery electrolytes and improving battery cycle stability.

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Thiophene-2-carbonitrile: a bifunctional electrolyte additive to improve the performance of lithium-ion batteries

Cited by 2 publications

References 37 publications

Unveiling the practical impact of cyclic additive- ethyl-4-toluene sulfonate on stable interface and extended lifespan using a combination of theory and experiments in full cell LIBs

Unveiling the practical impact of cyclic additive- ethyl-4-toluene sulfonate on stable interface and extended lifespan using a combination of theory and experiments in full cell LIBs

Ethyl Isopropyl Sulfone Modulating to Achieve Stable High-Voltage Electrolyte for Lithium-Ion Batteries

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