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Towards Recycling of LLZO Solid Electrolyte Exemplarily Performed on LFP/LLZO/LTO Cells

Nowroozi, Mohammad Ali ; Waidha, Aamir Iqbal ; Jacob, Martine ; Aken, Peter A. van ; Predel, Felicitas ; Ensinger, Wolfgang ; Clemens, Oliver (2022)
Towards Recycling of LLZO Solid Electrolyte Exemplarily Performed on LFP/LLZO/LTO Cells.
In: ChemistryOpen, 2022, 11 (3)
doi: 10.26083/tuprints-00021454
Article, Secondary publication, Publisher's Version

Abstract

All-solid-state lithium ion batteries (ASS-LIBs) are promising due to their safety and higher energy density as compared to that of conventional LIBs. Over the next few decades, tremendous amounts of spent ASS-LIBs will reach the end of their cycle life and would require recycling in order to address the waste management issue along with reduced exploitation of rare elements. So far, only very limited studies have been conducted on recycling of ASS-LIBS. Herein, we investigate the recycling of the Li₇La₃Zr₂O₁₂ (LLZO) solid-state electrolyte in a LiFePO₄/LLZO/ Li₄Ti₅O₁₂ system using a hydrometallurgical approach. Our results show that different concentration of the leaching solutions can significantly influence the final product of the recycling process. However, it was possible to recover relatively pure La₂O₃ and ZrO₂ to re-synthesize the cubic LLZO phase, whose high purity was confirmed by XRD measurements.

Item Type: Article
Erschienen: 2022
Creators: Nowroozi, Mohammad Ali ; Waidha, Aamir Iqbal ; Jacob, Martine ; Aken, Peter A. van ; Predel, Felicitas ; Ensinger, Wolfgang ; Clemens, Oliver
Type of entry: Secondary publication
Title: Towards Recycling of LLZO Solid Electrolyte Exemplarily Performed on LFP/LLZO/LTO Cells
Language: English
Date: 2022
Year of primary publication: 2022
Publisher: Wiley
Journal or Publication Title: ChemistryOpen
Volume of the journal: 11
Issue Number: 3
Collation: 13 Seiten
DOI: 10.26083/tuprints-00021454
URL / URN: https://tuprints.ulb.tu-darmstadt.de/21454
Corresponding Links:
Origin: Secondary publication via sponsored Golden Open Access
Abstract:

All-solid-state lithium ion batteries (ASS-LIBs) are promising due to their safety and higher energy density as compared to that of conventional LIBs. Over the next few decades, tremendous amounts of spent ASS-LIBs will reach the end of their cycle life and would require recycling in order to address the waste management issue along with reduced exploitation of rare elements. So far, only very limited studies have been conducted on recycling of ASS-LIBS. Herein, we investigate the recycling of the Li₇La₃Zr₂O₁₂ (LLZO) solid-state electrolyte in a LiFePO₄/LLZO/ Li₄Ti₅O₁₂ system using a hydrometallurgical approach. Our results show that different concentration of the leaching solutions can significantly influence the final product of the recycling process. However, it was possible to recover relatively pure La₂O₃ and ZrO₂ to re-synthesize the cubic LLZO phase, whose high purity was confirmed by XRD measurements.

Alternative Abstract:
Alternative abstract Language

Recycling of solid-state batteries, which are expected to become extremely important in the energy industry over the next decade, is often very complex due to the solid electrolyte. Here, recycling of all-solid-state lithium ion batteries has been approached by a combination of mechanical/hydrometallurgical methods. Promising results confirm the recovering of the solid-electrolyte.

English
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-214544
Classification DDC: 500 Science and mathematics > 540 Chemistry
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
Date Deposited: 10 Jun 2022 11:12
Last Modified: 13 Jun 2022 06:10
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