Exploring the Solubility of Ethylene Carbonate in Supercritical Carbon Dioxide: A Pathway for Sustainable Electrolyte Recycling from Li-Ion Batteries

Batteries, Год журнала: 2025, Номер 11(3), С. 98 - 98

Опубликована: Март 4, 2025

Ethylene carbonate is, among other applications, used in Li-ion batteries as an electrolyte solvent to dissociate Li-salt. Supercritical CO2 extraction is a promising method for the recycling of solvents from spent batteries. To design process, knowledge solute solubility essential. In this work, ethylene at different pressure (80–160 bar) and temperature (40 °C, 60 °C) conditions studied. It shown that increased with both temperatures, ranging 0.24 8.35 g/kg CO2. The retrieved data were fitted using Chrastil model, average equilibrium association number was determined be 4.46 4.02 40 °C respectively. Scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction analysis collected indicated crystal morphology structure remained unchanged. A proof-of-principle experiment showed EC can successfully extracted battery waste 140 bar °C.

Язык: Английский

Mechanism demystification and factor optimization of uranium decontamination on fabrics via supercritical CO2: Role of off-line prepared additives

Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(2), С. 116125 - 116125

Опубликована: Март 11, 2025

Язык: Английский

Thermochemical conversion and gasification of high-density polyethylene (HDPE) in supercritical CO2: A sustainable approach to plastic waste management

Chemical Engineering Journal, Год журнала: 2025, Номер 512, С. 162343 - 162343

Опубликована: Апрель 8, 2025

Язык: Английский