کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7702093 1496856 2018 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrasound-assisted leaching of cobalt and lithium from spent lithium-ion batteries
ترجمه فارسی عنوان
شستشوی سونوگرافی از کبالت و لیتیوم از باتری های باتری لیتیوم یون
کلمات کلیدی
اشباع سونوگرافی، باتری های لیتیوم یونی مصرف شده، بازیافت، کبالت،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
چکیده انگلیسی
Recovery of cobalt and lithium from spent Li-ion batteries (LIBs) has been studied using ultrasound-assisted leaching. The primary purpose of this work is to investigate the effects of ultrasound on leaching efficiency of cobalt and lithium. The results were compared to conventional leaching. In this study sulfuric acid was used as leaching agent in the presence of hydrogen peroxide. The cathode active materials from spent battery were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) before and after leaching. Effects of leaching time, leaching temperature, H2SO4 concentration, H2O2 concentration, solid/liquid ratio, and ultrasonic power have been studied. Optimal leaching efficiency of 94.63% for cobalt, and 98.62% for lithium, respectively, was achieved by using 2 M H2SO4 with 5% (v/v) H2O2 at a solid/liquid ratio of 100 g/L, and an ultrasonic power of 360 W, and the leaching time being 30 min under 30 °C. Compared with conventional leaching, the ultrasound-assisted leaching gave a higher leaching rate and improved leaching efficiency under the same experimental conditionals. The kinetic analysis of ultrasound-assisted leaching showed that the activation energy of cobalt and lithium were 3.848 KJ/mol and 11.6348 KJ/mol, respectively, indicating that ultrasound-assisted leaching of cobalt and lithium from spent LIBs was controlled by diffusion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 48, November 2018, Pages 88-95
نویسندگان
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