A combined recovery process of metals in spent lithium-ion batteries

Novel approach to recover cobalt and lithium from spent lithium-ion battery using oxalic acid

“…HCl, H 2 SO 4 , and HNO 3 ) and chemical precipitation or solvent extraction are well sophisticated to recover cobalt and lithium [21][22][23][24]. For instance, hybrochloric acid (HCl) was adopt to dissolve the cathode material, and then the leaching solution would be precipitated using NaOH, NaC 2 O 4 , or Na 2 CO 3 to achieve the recovered product such as Co(OH) 2 , CoC 2 O 4 , and CoCO 3 [22,25,26]. Additional process need to be initiated again to recover lithium.…”

Thermal treatment process for the recovery of valuable metals from spent lithium-ion batteries

“…In many of the proposed hydrometallurgical recycling processes, the active cathode materials are separated from the cathode current collectors by dissolving the Al foils with NaOH, and the binder, Polyvinylidene Fluoride (PVDF), is removed with N-methylpyrrolidone (NMP) (Weng et al, 2013;Li et al, 2010). The obtained active cathode materials are then leached by either HCl (Wang et al, 2009;Joulie et al, 2014;Li et al, 2009a), HNO 3 (Ferreira et al, 2009), H 2 SO 4 (Zhu et al, 2012;Shin et al, 2005;Chen et al, 2011) or their mixtures (Bok et al, 2004). The valuable metals are separated from the Al in the leaching liquid by solvent extraction with extractants such as D2EHPA, PC-88A, Cyanex 272 and Acorga M5640 (Zhao et al, 2011;Granata et al, 2012;Pranolo et al, 2010;Zhang et al, 1998), followed by ion exchange (Li et al, 2009b) and electrochemical (Freitas and Garcia, 2007) or chemical precipitation processes (Li et al, 2009c).…”

Battery Recycling Technologies: Recycling Waste Lithium Ion Batteries with the Impact on the Environment In-View

“…The ultrasonic washing improved the recovery efficiency of Co, reduced energy consumption as well as environmental pollution. This process was considered feasible for recycling spent LIBs for scale-up operation (Li et al, 2009a). A recycling process that combined hydrometallurgical and sol-gel steps in addition to other general steps was also used to recover Co and Li from LiBs.…”

“…A combination of ultrasonic washing, acid leaching and precipitation was proposed by Li et al (2009aLi et al ( , 2009b to recover Co from spent LIBs. The ultrasonic washing improved the recovery efficiency of Co, reduced energy consumption as well as environmental pollution.…”