Selective lithium extraction and Fe–P component reconstruction toward high-performance Na<sub>4</sub>Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>P<sub>2</sub>O<sub>7</sub> as cathode materials of sodium ion batteries
Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub> oxidation reclaims 98.08% Li from spent LiFePO<sub>4</sub>, while residual Fe-P components are reconstituted into Na<sub>4</sub>Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>P<sub>2</sub>O<sub>7</sub>/C <i>via</i> Na-insertion and carbon coating. The regenerated cathode delivers 99.74% capacity retention (400 cycles, 1C) and 97.23% retention after 600 cycles (5C), demonstrating superior cyclability for sustainable battery recycling and low-cost energy storage.
Authors
- Yujing Chen (ORCID: https://orcid.org/0000-0002-6920-9385)
- Xiahui Zhang (ORCID: https://orcid.org/0000-0002-9122-7598)
- Pei-yao Li
- Chao Sun (ORCID: https://orcid.org/0000-0001-5721-9298)
- Qing Wen (ORCID: https://orcid.org/0000-0002-7912-8298)
- Chen Tian (ORCID: https://orcid.org/0000-0002-6432-6339)
- Pei Yang
- J R Zheng
Institutions
- Central South University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc02521d
- Citations
- 2
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 1.46