Recovery of valuable metals from spent NMC 811 lithium-ion cell via perchloric acid leaching
JOURNAL OF POWER SOURCES, cilt.691, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 691
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.jpowsour.2026.240904
- Dergi Adı: JOURNAL OF POWER SOURCES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Kocaeli Üniversitesi Adresli: Evet
Özet
In the recycling processes of lithium-ion batteries, various methods such as pyrometallurgical and hydrometallurgical techniques are employed. In the hydrometallurgical process, operations such as pre-treatment, acid leaching, and the recovery of Li, Co, Ni, and Mn from the cathode section of lithium-ion batteries are involved. In this study, perchloric acid is utilized in the acid leaching process with different parameters. The recovery rates of valuable metals (Li, Co, Ni, and Mn) were calculated by ICP-OES analysis according to metal leaching efficiency equations. Two different options for the used and end-of-life LiNiMnCoO2 (NMC 811) lithium-ion cell cathode material are examined. The results of the characterization analyses support the idea of using the end-of-life NMC 811 cathode material after pre-treatment. The concept proposed in this study offers a new alternative approach to improving the recovery rates of valuable metals using perchloric acid in the acid leaching process and the pretreatment of the NMC 811 lithium-ion cell cathode material. Initially, an experimental design is developed using Response Surface Methodology (RSM) in design expert software based on predetermined experimental parameters. According to the study, the recovery efficiencies of the individual metals in the cathode are determined as follows: Li at 81.28%, Ni at 72.80%, Co at 71.62%, and Mn at 72.30%.