Comparative study for selective lithium recovery via chemical transformations during incineration and dynamic pyrolysis of EV li-ion batteries

Balachandran, SrijaKTH,Resursåtervinning,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH) (author)

QC 20210810
Selective leaching of Li from spent LIBs thermally pretreated by pyrolysis and incineration between 400 and 700 °C for 30, 60, and 90 min followed by water leaching at high temperature and high L/S ratio was examined. During the thermal pretreatment Li2CO3 and LiF were leached. Along with Li salts, AlF3 was also found to be leached with an efficiency not higher than 3.5%. The time of thermal pretreatment did not have a significant effect on Li leaching efficiency. The leaching efficiency of Li was higher with a higher L/S ratio. At a higher leaching temperature (80 °C), the leaching of Li was higher due to an increase in the solubility of present Li salts. The highest Li leaching efficiency of nearly 60% was observed from the sample pyrolyzed at 700 °C for 60 min under the leaching condition L/S ratio of 20:1 mL g−1 at 80 °C for 3 h. Furthermore, the use of an excess of 10% of carbon in a form of graphite during the thermal treatment did not improve the leaching efficiency of Li.

Forsberg, Kerstin,1979-KTH,Resursåtervinning,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)(Swepub:kth)u1dfmuzo (author)
Lemaitre, Tom,1995Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Industrial Materials Recycling and Nuclear Chemistry, Chalmers University of Technology(Swepub:cth)tomle (author)
Vieceli, Nathalia Cristine,1989Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Industrial Materials Recycling and Nuclear Chemistry, Chalmers University of Technology(Swepub:cth)cristine (author)
Lombardo, Gabriele,1990Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Industrial Materials Recycling and Nuclear Chemistry, Chalmers University of Technology(Swepub:cth)gablom (author)
Petranikova, Martina,1983Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Industrial Materials Recycling and Nuclear Chemistry, Chalmers University of Technology(Swepub:cth)marpetr (author)
KTHResursåtervinning (creator_code:org_t)

By the author/editor: Balachandran, Sr ...; Forsberg, Kersti ...; Lemaitre, Tom, 1 ...; Vieceli, Nathali ...; Lombardo, Gabrie ...; Petranikova, Mar ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Chemical Process ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Polymer Technolo ...

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Materials Chemis ...

By the university: Chalmers University of Technology; Royal Institute of Technology

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