A green strategy towards fabricating FePO4-graphene oxide for high-performance cathode of lithium/sodium-ion batteries recovered from spent batteries

Zeng, Shihan; Xu, Qinxin; Jin, Hongjun; Ling, Zeng; Wang, Yiyi; Lai, Wenbin; Yao, Qi; Zhang, Jixiang; Chen, Qinghua; Qian, Qingrong

doi:10.1016/j.jelechem.2022.116287

Cited by 15 publications

(2 citation statements)

References 74 publications

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“…This also points to the direction for the research on the design of green battery materials. In addition, Zeng 78 et al reported the oxidative recovery of LFP with complete retention of energy within P tetrahedra and Fe octahedra. The mixture of LFP and graphene was stirred in an aqueous solution of Na 2 S 2 O 8 for 23 h, and the graphenecoated oxide (FePO 4 -GO) was obtained after filtration and separation.…”

Section: Reviewmentioning

confidence: 99%

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

Lin

Zhang

Fan

et al. 2023

Energy Environ. Sci.

134

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Section: Reviewmentioning

confidence: 99%

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

Lin

Zhang

Fan

et al. 2023

Energy Environ. Sci.

134

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show abstract

“…1–4 Among them, lithium-ion batteries have attracted considerable attention because of their high energy density. 5–7 However, the lithium resource reserves are not abundant, limiting its future development of energy storage, gradually switching attention to Mg-ion batteries. 8–10 Mg-ion batteries have the advantages of low cost, high capacity, high safety, and abundant reserves.…”

Section: Introductionmentioning

confidence: 99%

NiS₂ nanoparticles by the NaCl-assisted less-liquid reaction system for the magnesium-ion battery cathode

et al. 2023

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Dynamic Li⁺ Capture through Ligand‐Chain Interaction for the Regeneration of Depleted LiFePO₄ Cathode

Zhao,

Wang,

Guo

et al. 2024

Advanced Materials

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After application in electric vehicles, spent LiFePO4 (LFP) batteries are typically decommissioned. Traditional recycling methods face economic and environmental constraints. Therefore, direct regeneration has emerged as a promising alternative. However, irreversible phase changes can significantly hinder the efficiency of the regeneration process owing to structural degradation. Moreover, improper storage and treatment practices can lead to metamorphism, further complicating the regeneration process. In this study, we propose a sustainable recovery method for the electrochemical repair of LFP batteries. We utilize a ligand‐chain Zn‐complex (ZnDEA) as a structural regulator, with its ─NH─ group alternatingly facilitating the binding of preferential transition metal ions (Fe3+ during charging and Zn2+ during discharging). This dynamic coordination ability helps to modulate volume changes within the recovered LFP framework. Consequently, the recovered LFP framework can store more Li‐ions, enhance phase transition reversibility between LFP and FePO4 (FP), modify the initial Coulombic efficiency, and reduce polarization voltage differences. The recovered LFP cells exhibit excellent capacity retention of 96.30% after 1500 cycles at 2 C. The ligand chain repair mechanism promotes structural evolution to facilitate ion migration, providing valuable insights into the targeted ion compensation for environmentally friendly recycling in practical applications.This article is protected by copyright. All rights reserved

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A green strategy towards fabricating FePO4-graphene oxide for high-performance cathode of lithium/sodium-ion batteries recovered from spent batteries

Cited by 15 publications

References 74 publications

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

NiS₂ nanoparticles by the NaCl-assisted less-liquid reaction system for the magnesium-ion battery cathode

Dynamic Li⁺ Capture through Ligand‐Chain Interaction for the Regeneration of Depleted LiFePO₄ Cathode

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A green strategy towards fabricating FePO4-graphene oxide for high-performance cathode of lithium/sodium-ion batteries recovered from spent batteries

Cited by 15 publications

References 74 publications

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications

NiS2 nanoparticles by the NaCl-assisted less-liquid reaction system for the magnesium-ion battery cathode

Dynamic Li+ Capture through Ligand‐Chain Interaction for the Regeneration of Depleted LiFePO4 Cathode

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NiS₂ nanoparticles by the NaCl-assisted less-liquid reaction system for the magnesium-ion battery cathode

Dynamic Li⁺ Capture through Ligand‐Chain Interaction for the Regeneration of Depleted LiFePO₄ Cathode