A novel approach for synthesis of nanocrystalline γ-LiAlO2 from spent lithium-ion batteries

Synthesis, characterization and magnetic properties of microcrystalline lithium cobalt ferrite from spent lithium-ion batteries

“…1. More detailed description on cathode separation and purification can be found elsewhere [11]. Upon calcinations at 500 • C, the binder and organic additives were burned out leaving behind LiCoO 2 and carbon powder.…”

“…A recycling process involving mechanical, thermal, hydrometallurgical and sol-gel steps has been applied for the recovery of cobalt and lithium from the spent batteries, also re-synthesis of electrode materials or synthesis of other reactive materials from the recycled spent Li-batteries is studied through many investigations [6][7][8][9][10][11]. By reacting of Li 2 CO 3 , CoCO 3 and Ni(NO 3 ) 2 ·6H 2 O, Gummow and Thackeray [6] prepared LiCo 1−x NiO 2 cathode material for rechargeable Li-batteries.…”

“…Also in a related work by the present authors [11], the synthesis of microcrystalline ␥-LiAlO 2 from spent lithium-ion batteries by thermal treatment of the cathode material over its aluminum sheet at 800-900 • C for 2 h is studied.…”

Hydrometallurgical processing of spent lithium ion batteries (LIBs) in the presence of a reducing agent with emphasis on kinetics of leaching

“…From the phase identification, it is clear that the intensity of the major phases is reduced progressively in different residues. In untreated sample, the major phases identified were found to be LiCoO 2 , Li 2 Other phases containing the lower ratio of lithium and nickel are also present along with that of cobalt-containing compound in the minor amount. In 4 h, the amount of the leach residue was found to be very small and therefore, several experiments were conducted under the similar conditions to generate sufficient amount of residue for XRD and SEM studies.…”

“…LIBs are made of heavy metals, organic chemicals and plastics and generally contain (by wt.) 5-20% cobalt, 5-7% lithium, 15% organic chemicals and 7% plastics [1][2][3]. The metal concentrations in the LIBs are thus quite high and at times even higher than those found in natural ores.…”