Re synthesis of Lithium Cobalt Oxide LOC from Spent Lithium ion Batteries Model Based Performance and Life Cycle Assessment

Abstract

newline newlineABSTRACT newlineThe power sector is undergoing a paradigm shift as a result of rising demand for newlineelectrical energy and the effects of global warming. As a result, the use of renewable newlineenergy sources has increased. Due to limited availability and supply of renewable energy newlinesources, devices that can store the electrical energy are required to increase its reliability. The most common means of storing the electrical energy is the battery systems. Among newlinethe various available battery systems, lithium-ion batteries (LIBs) are considered to be newlinethe highly efficient due to its excellent electrochemical performance. Most of the modern newlineportable electronic devices such as mobile phones, laptops, cameras use lithium-ion newlinebatteries (LIBs) because of their higher energy density, lighter weight, lower self- discharge, durability and safer operations. Recently LIBs have also found their newlineapplication in electric vehicles (EV) promising a greener route for transportation. The vast application base of lithium-ion batteries and its subsequent production will newlineinevitably lead to a large number of spent LIBs after their useful service life. Recycling newlineof the spent LIBs is an essential route to safeguard the environment and to have a newlinesustainable supply of valuable metals contained by these batteries. This thesis explores newlinetwo routes of recycling process (acidic leaching and baking) and compares their newlineenvironmental and economic impacts along with the extraction efficiency and purity of newlinecobalt oxalate. This work uses Box-Behnken method to optimize operating conditions of newlinethese two routes, and polynomial equations based on the experimental data of both the newlineroutes are developed for the extraction efficiency of cobalt oxalate. Various newlineenvironmental indices given in GaBi software are studied for these routes. The newlineenvironmental impact (GWP 100) of these two routes are found to be 4.38 and 6.37 kg newlineCO2 equivalent. The optimum extraction efficiency and purity of the cobalt oxalate using newlineacidic leaching route are found as 85.40 and 89.80%,