Synergetic pyrolysis of lithium-ion battery cathodes with polyethylene terephthalate for efficient metal recovery and battery regeneration.

ABSTRACT: Spent LiNi_xCo_yMn_zO₂ (x + y + z = 1) and polyethylene terephthalate are major solid wastes due to the growing Li-ion battery market and widespread plastic usage. Here we propose a synergistic pyrolysis strategy to recover valuable metals by thermally treating LiNi_1/3Co_1/3Mn_1/3O₂ and polyethylene terephthalate. With polyethylene terephthalate assistance, LiNi_1/3Co_1/3Mn_1/3O₂ decomposes at 400 °C, and fully converts to Li₂CO₃, MnO, and Ni-Co alloy at 550 °C within 30 min, using a 1.0:0.3 mass ratio of LiNi_1/3Co_1/3Mn_1/3O₂ to polyethylene terephthalate. Furthermore, density functional theory calculati

SUBMITTER: Meng Z 

PROVIDER: S-EPMC11585579 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature