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Realizing Lean-Leachate Recycling of Spent Lithium Nickel Oxides by Dynamically Stabilizing the Hole-Mediated Diffusion Kinetics.
Wang, Zhongjie; Hu, Tao; Lou, Liang; Jing, Siqi; Li, Shuie; Xiong, Junkai; Ge, Xiang.
Afiliación
  • Wang Z; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Hu T; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Lou L; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Jing S; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Li S; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Xiong J; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
  • Ge X; Department of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
ACS Appl Mater Interfaces ; 2024 Apr 26.
Article en En | MEDLINE | ID: mdl-38666348
ABSTRACT
While hydrometallurgy is the primary technology for recycling spent lithium-ion batteries due to various advantages, it still involves substantial consumption of chemical reagents and poses challenges in wastewater emission. Herein, we report the realization of cathode recycling under lean-leachate conditions by dynamically stabilizing hole-mediated diffusion kinetics, which is enabled by synchronizing the extraction step during the leaching stage, thus continuously removing the dissolved ions out of the leachate. Theoretical molecular dynamics simulations predict that preventing the accumulation of the dissolved ions is efficient for keeping the leaching process proceeding. Experimentally, even with a small dosage of leachate (0.5 mL), a 94.51% leaching efficiency can be achieved (90 °C, 40 min) for spent LNO materials. Considering that our strategy is not limited to a specific materials system, it could be extended to recycle other valuable materials (including LCO or NCM 811) with minimal leachate usage.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos