A High‐Performance Zinc–Air Battery Cathode Catalyst from Recycling of Spent Lithium Iron Phosphate Batteries

Kun Luo*, Mu Zhou, Tong Liu, Xiangqun Zhuge, Terence Xiaoteng Liu*, Maryam Bayati, Yurong Ren, Zhihong Luo*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)
    38 Downloads (Pure)

    Abstract

    A novel recycling process of the conductive agent in spent lithium iron phosphate batteries is demonstrated. Wet chemistry is applied in recovering lithium and iron phosphate, and the filter residue is calcined with a small amount of recovered iron phosphate in N2 at 900 °C to form a Fe N P‐codoped carbon catalyst, which exhibits a low half‐wave potential and excellent durability for oxygen reduction. When applied in a rechargeable Zn–air battery, the power density can reach 80 mW cm−2.
    Original languageEnglish
    Article number2300107
    Number of pages6
    JournalSmall Structures
    Volume4
    Issue number11
    Early online date20 Jun 2023
    DOIs
    Publication statusPublished - 1 Nov 2023

    Keywords

    • zinc–air batteries
    • lithium iron phosphate recovery
    • oxygen reduction reaction
    • codoping

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