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Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO RULE 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Craig Cunningham, the Principal Financial Officer of Li-Cycle Holdings Corp. (the “Company”), certify that, to the best of my knowledge:

(1)    The Quarterly Report on Form 10-Q for the quarter ended June 30, 2024 of the Company (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)     The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 8, 2024

By:			/s/ Craig Cunningham
			Name:    Craig Cunningham
			Title:    Chief Financial Officer (principal financial officer)