%0 Journal Article
%T Reclamation of Lithium Cobalt Oxide from Waste Lithium Ion Batteries to Be Used as Recycled Active Cathode Materials
%A Rakibul Qadir
%A Fahmida Gulshan
%J Materials Sciences and Applications
%P 142-154
%@ 2153-1188
%D 2018
%I Scientific Research Publishing
%R 10.4236/msa.2018.91010
%X Waste laptop batteries (Type-Lithium ion) have been collected and
manually dismantled in the current work. Active electrode materials were
scraped off from the copper current collector and polyethylene separators. The
aluminum current collectors were found to be severely damaged and attached with
the electrode material. It was treated with NaOH later to be recovered as Al<sub>2</sub>O<sub>3.</sub> The leaching of LiCoO<sub>2</sub> was done by 3 M HCl aided by 5% H<sub>2</sub>O<sub>2</sub> at 60ˇăC from the scraped active electrode materials (LiCoO<sub>2</sub> and
graphite) leaving the graphite completely. Co was precipitated as hydroxide by
the addition of NaOH and later converted to Co<sub>3</sub>O<sub>4</sub>. The
remaining solution was treated with saturated Na<sub>2</sub>CO<sub>3</sub> to
acquire Li<sub>2</sub>CO<sub>3</sub> as crystalline precipitate with high
purity. The recovery of Co and Li was 99% and 30%, respectively. Co<sub>3</sub>O<sub>4</sub> and Li<sub>2</sub>CO<sub>3</sub>were mixed in stoichiometric proportions and
calcined around 950ˇăC with air supply to achieve LiCoO<sub>2</sub> successfully.
%K LiCoO&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K Lithium Ion Battery (LIB)
%K Reclamation of LiCoO&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K Leaching
%K Active Cathode Materials
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=81832