Complete Metal Recycling from Lithium-Ion Batteries Enabled by Hydrogen Evolution Catalyst Reconstruction

Zhang, Yuan; Li, Junyan; Zhao, Wenru; Yan, Tianran; Zhang, Liang; Zhang, Wei; Mei, Donghai; Yu, Jihong

doi:10.1021/jacs.3c10188

“…22 Notably, the two characteristic peaks in CN 2nd and Zn–CN 2nd are significantly attenuated via two-step calcination, suggesting that N 2 thermal etching creates N defects in the CN structural units and weakens the lamellar stacking. 23 In addition, no obvious peaks of Zn nanoparticles are detected in the XRD patterns of both Zn–CN and Zn–CN 2nd . Fourier transform infrared (FTIR) spectra of all the synthesized photocatalysts in Fig.…”

Section: Resultsmentioning

confidence: 96%

N vacancies modulated Zn single atoms for efficient H₂O₂ photosynthesis

Xie,

Liu,

Liu

2024

J. Mater. Chem. A

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Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Chang,

Fan,

Yuan

et al. 2024

Angewandte Chemie

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The surge in lithium‐ion batteries has heightened concerns regarding metal resource depletion and the environmental impact of spent batteries. Battery recycling has become paramount globally, but conventional techniques, while effective at extracting transition metals like cobalt and nickel from cathodes, often overlook widely used spent LiFePO4 due to its abundant and low‐cost iron content. Direct regeneration, a promising approach for restoring deteriorated cathodes, is hindered by practicality and cost issues despite successful methods like solid‐state sintering. Hence, a smart prelithiation separator based on surface‐engineered sacrificial lithium agents is proposed. Benefiting from the synergistic anionic and cationic redox, the prelithiation separator can intelligently release or intake active lithium via voltage regulation. The staged lithium replenishment strategy was implemented, successfully restoring spent LiFePO4’s capacity to 177 mAh g−1 and a doubled life. Simultaneously, the separator can absorb excess active lithium up to approximately 600mAh g−1 below 2.5 V to prevent over‐lithiation of the cathode This innovative, straightforward, and cost‐effective strategy paves the way for the direct regeneration of spent batteries, expanding the possibilities in the realm of lithium‐ion battery recycling.

show abstract

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Chang,

Fan,

Yuan

et al. 2024

Angew Chem Int Ed

1

0

View full text Add to dashboard Cite

The surge in lithium‐ion batteries has heightened concerns regarding metal resource depletion and the environmental impact of spent batteries. Battery recycling has become paramount globally, but conventional techniques, while effective at extracting transition metals like cobalt and nickel from cathodes, often overlook widely used spent LiFePO4 due to its abundant and low‐cost iron content. Direct regeneration, a promising approach for restoring deteriorated cathodes, is hindered by practicality and cost issues despite successful methods like solid‐state sintering. Hence, a smart prelithiation separator based on surface‐engineered sacrificial lithium agents is proposed. Benefiting from the synergistic anionic and cationic redox, the prelithiation separator can intelligently release or intake active lithium via voltage regulation. The staged lithium replenishment strategy was implemented, successfully restoring spent LiFePO4’s capacity to 177 mAh g−1 and a doubled life. Simultaneously, the separator can absorb excess active lithium up to approximately 600mAh g−1 below 2.5 V to prevent over‐lithiation of the cathode This innovative, straightforward, and cost‐effective strategy paves the way for the direct regeneration of spent batteries, expanding the possibilities in the realm of lithium‐ion battery recycling.

show abstract

Complete Metal Recycling from Lithium-Ion Batteries Enabled by Hydrogen Evolution Catalyst Reconstruction

Cited by 4 publications

References 34 publications

N vacancies modulated Zn single atoms for efficient H₂O₂ photosynthesis

N vacancies modulated Zn single atoms for efficient H₂O₂ photosynthesis

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

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Complete Metal Recycling from Lithium-Ion Batteries Enabled by Hydrogen Evolution Catalyst Reconstruction

Cited by 4 publications

References 34 publications

N vacancies modulated Zn single atoms for efficient H2O2 photosynthesis

N vacancies modulated Zn single atoms for efficient H2O2 photosynthesis

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

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N vacancies modulated Zn single atoms for efficient H₂O₂ photosynthesis

N vacancies modulated Zn single atoms for efficient H₂O₂ photosynthesis