Effects of mechano-thermal conditioning on PVDF decomposition and fluorine distribution in spent lithium-ion batteries

F. Mulet-Mery

doi:10.1016/j.wasman.2026.115798

Effects of mechano-thermal conditioning on PVDF decomposition and fluorine distribution in spent lithium-ion batteries

2026-08-11

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AI

F

F. Mulet-Mery *

J

J. Valenzuela-Elgueta

C

Cholasit Kaewwichit

Y

Yousef Ghorbani

DOI：10.1016/j.wasman.2026.115798

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Abstract

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• Mechanical conditioning coupled with controlled pyrolysis. • Evaluation of PVDF and organic residue removal by advanced techniques. • XPS provided direct evidence of fluorine redistribution after pyrolysis. • Cryogenic grinding increased PVDF degradation compared with dry grinding. • Surface fluorocarbon species from PVDF were significantly reduced after treatment.

Keywords:

Spent LIBs

PVDF binder

Mechanical pre-treatment

Slow pyrolysis

Fluorine speciation

Effects of mechano-thermal conditioning on PVDF decomposition and fluorine distribution in spent lithium-ion batteries

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