Evaluating sustainability: A review of recycling technologies of spent lithium-ion batteries

The lithium-ion battery business has grown significantly over the last eight years, with lithium recycling playing an important role in this expansion. The organizations rely on lithium, a key component of lithium-ion batteries, which is derived from natural minerals and brines. However, the sophisticated and energy-intensive procedures required for lithium extraction use a huge aggregate of energy. Lithium usage poured by 18% between 2018 and 2019, indicating the depletion is inevitable. This has led to the development of various lithium recycling methods, including pyrometallurgy, hydrometallurgy, and electrochemical extraction. Despite increased interest in lithium recycling, less than 1% of lithium is presently recycled. Lithium-ion batteries are classified into several varieties, including lithium carbonate, lithium hydroxide, lithium metal, butyl lithium, and lithium specialty batteries. The applications section focuses on their use in transferrable strategies, rechargeable cars, and grid-energy packing structures. This study concludes by emphasizing the accumulative petition for lithium-ion batteries as well as the need for improvements in enactment, affordability, and safety.