Analysis of Electrolyte Recycling Technology from Spent Lithium-Ion Batteries(LIBs)

Recycling electrolytes from spent lithium-ion batteries(LIBs) is a critical step toward sustainable resource management and environmental protection.Electrolytes, consisting of organic solvents and lithium salts, contain hazardous chemicals and represent a significant fraction of battery waste.In the absence of effective recovery technologies, they may lead to severe environmental contamination and resource depletion.Current recovery methods including mechanical separation, solvent extraction, supercritical CO extraction, and low-temperature decomposition each present distinct advantages and limitations in terms of efficiency, purity, and cost-effectiveness.However, no single approach can fully satisfy the requirements for both safety and performance, highlighting the need for integrated and optimized processes.Future research should prioritize the development of eco-friendly and energy-efficient technologies with scalability for industrial applications.This study provides a comprehensive review of existing electrolyte recovery strategies and proposes pathways toward effective and sustainable recycling.