This survey is to review the advancement recorded so far in the lithium-ion battery recycling technologies in compliance with environmental laws. Amongst many of the technologies used to date, the best is the use of simple but scale-up dissolution technology involving non-toxic suitable organic solvents that can effectively dissolve toxic binder, PVdF in battery to avoid much pollution. Pollution through the hydrolysis of LiPF 6 from the lithium-ion battery can also be minimized through conversion to useful compounds instead of using
Journal of Environment and Ecology
Recycling of battery components for natural resources sustainability and consumer products has become an important endeavor that demands continuity through effective processes. In compliance with the need for waste management, LiMn1/3Ni1/3Co1/3O2 in the positive electrode of spent lithium-ion batteries has been recovered using specially designed device, consisting of two compartments separated with a plastic sieve of pore size 0.2mm. The upper compartment equipped with a mechanical stirrer contained the electrode pieces, while the lower compartment contained the powders recovered from the electrode pieces during the separation process. Both compartments were filled with a solvent such as N-N dimethyl formamide (DMF), N-dimethyl acetamide (DMAC) or dimethyl sulfoxide (DMSO) used to extract the binder in the electrode materials. The whole device was put in a hot bath maintained at a constant temperature. During the separation, the binder, polyvinylidene fluoride (PVDF) in the electrode dissolved in the solvent, which made the solid powders to fall off from the aluminium foils and then passed directly through the sieve pores into the lower compartment. This easy passage of the particles through the sieve pores without being adsorbed unto the foils made the separation much more efficient using the device. The XRD, SEM and the electrochemical performances results showed that the secondary use of the powder recovered in a new lithium-ion battery will be successful.
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