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New batteryBattery technologies are necessary to cover the increasing demand for stationary energy storageEnergy storage as the green transition requires more use of renewable intermittent energy sources. The novel Na-ZnCl2Na-ZnCl batteryBattery has been suggested as a solution to a cheap salt batterySalt battery, exploiting abundant materials such as Na and Zn. It is, however, important to develop a recyclingRecycling route for new batteriesBattery, making sure that end-of-life products do not go to landfill. This can be solved by reusing the materials (for the same or different applications/processes), or by recyclingRecycling the materials. The present study has therefore investigated how Na-ZnCl2Na-ZnCl batteryBattery cells can be safely decommissioned and recycled. After cycling the batteryBattery cell, microcomputed tomography (µCT)Microcomputed Tomography (µCT) was used to map the distribution of the electrolyteElectrolyte. Followed, the cell was disassembled, and samples were analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive Spectroscopy (EDS), and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to characterize the used cell. It is concluded that the electrode materials and current collectors can be integrated in today’s recyclingRecycling process of the state-of-the-art Na-NiCl2 batteryBattery. This is also the case for the solid β’’-Al2O3 membrane and the liquid NaAlCl4 electrolyteElectrolyte. Zn can be included in different processes, such as hot-dip galvanization.

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Decommissioning, Characterization, and Proposed Recycling Route of a Used Na-ZnCl2 Battery Cell

  • 会议论文

  • 发表日期：

    2025年

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  • Cathrine K. W. Solem,
  • Thomas Park Simonsen,
  • Fabrizio Vagliani,
  • Zhaohui Wang,
  • Stein Rørvik,
  • Alberto Turconi,
  • Andrea Pozzi,
  • Camilla Sommerseth,
  • Karen S. Osen,
  • Kent-Robert Molvik,
  • Ole S. Kjos

摘要

New batteryBattery technologies are necessary to cover the increasing demand for stationary energy storageEnergy storage as the green transition requires more use of renewable intermittent energy sources. The novel Na-ZnCl2Na-ZnCl batteryBattery has been suggested as a solution to a cheap salt batterySalt battery, exploiting abundant materials such as Na and Zn. It is, however, important to develop a recyclingRecycling route for new batteriesBattery, making sure that end-of-life products do not go to landfill. This can be solved by reusing the materials (for the same or different applications/processes), or by recyclingRecycling the materials. The present study has therefore investigated how Na-ZnCl2Na-ZnCl batteryBattery cells can be safely decommissioned and recycled. After cycling the batteryBattery cell, microcomputed tomography (µCT)Microcomputed Tomography (µCT) was used to map the distribution of the electrolyteElectrolyte. Followed, the cell was disassembled, and samples were analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive Spectroscopy (EDS), and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to characterize the used cell. It is concluded that the electrode materials and current collectors can be integrated in today’s recyclingRecycling process of the state-of-the-art Na-NiCl2 batteryBattery. This is also the case for the solid β’’-Al2O3 membrane and the liquid NaAlCl4 electrolyteElectrolyte. Zn can be included in different processes, such as hot-dip galvanization.