Comparison of waste lithium-ion batteries recycling methods by different decision making techniques

Authors : Mahmut ÖZTÜRK, Esra EVİN, Aysun ÖZKAN, Mufide BANAR

Pages : 226-241

Doi:10.35208/ert.1243162

View : 22 | Download : 37

Publication Date : 2023-09-30

Article Type : Research Paper

Abstract :Today, to reduce fossil fuel consumption and to prevent gas emissions that are increasing day by day, vehicles working with electrical energy have started to be produced and developed. The environmental impact of the batteries of electric vehicles, which are increasing in number, is an undeniable fact and is predicted to be a major problem. In this study, three different alternative recycling processes were selected for waste lithium-ion batteries insert ignore into journalissuearticles values(LIBs);, namely pyrometallurgical process, hydrometallurgical process and direct recycling.These processes were compared in terms of their technical, economic, environmental and social aspects using a Multi-Criteria Decision Making insert ignore into journalissuearticles values(MCDM); approach.. From this point of view, in this study, entropy method which is an objective method was used to weight the criteria and Analytic Network Process insert ignore into journalissuearticles values(ANP); and TOPSIS methods were used to prioritise the alternatives in order to determine the best process for the recycling of waste LIBs. The alternatives were determined as being pyrometallurgical process, hydrometallurgical process and direct recycling, and these alternatives were evaluated in terms of environmental, economic, technical, and social dimensions. Afterwards, sensitivity analysis was performed. The ranking results showed that direct recycling is the best alternative insert ignore into journalissuearticles values(with values of 0.68 and 0.8101 for ANP and TOPSIS, respectively);. In addition, sensitivity analysis was applied for the robustness of the results. As a result of the sensitivity analysis, direct recycling was found to be the best alternative.
Keywords : Electric vehicle batteries, lithium ion, multi criteria decision making, recycling