A high-temperature oxidation strategy for the safe and efficient recovery of lithium and iron from spent LiFePO ₄ cathode

Jiayang Song; Ruifan Han; Yu Qiao; Zhonghao Rao

doi:10.1039/d6se00013d

January 1, 2026Sustainable Energy & Fuels

A high-temperature oxidation strategy for the safe and efficient recovery of lithium and iron from spent LiFePO ₄ cathode

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Key Points

The study aims to develop a green process for the recovery of lithium and iron from spent LiFePO4 batteries.
High-temperature oxidation combined with phosphoric acid leaching was employed.
The process was designed to be environmentally friendly and efficient for recycling.
Recovery purities of 96.27% for iron and 94.58% for lithium were achieved.
The oxidation process successfully resulted in the recovery of α-Fe2O3 with a purity of 96.27%.
Lithium was recovered as Li3PO4 with a purity of 94.58%.
The method shows potential for improving recycling rates for spent lithium batteries.

Implication

Demonstrates effective recovery of lithium and iron from spent batteries, suggesting a green recycling method.

Abstract

A green process combining high-temperature oxidation and phosphoric acid leaching enables the selective recovery of iron and lithium from spent LFP batteries, yielding α-Fe 2 O 3 and Li 3 PO 4 with purities of 96.27% and 94.58% respectively.

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Cite This Study

Song et al. (2026) studied this question.

synapsesocial.com/papers/6a0ff3aed674f7c03778c8f1 https://doi.org/10.1039/d6se00013d

View Full Paper

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A high-temperature oxidation strategy for the safe and efficient recovery of lithium and iron from spent LiFePO ₄ cathode

Key Points

Implication

Abstract

Discussion

Cite This Study

A high-temperature oxidation strategy for the safe and efficient recovery of lithium and iron from spent LiFePO ₄ cathode

Key Points

Implication

Abstract

Discussion

Cite This Study

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