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High cycle life all-solid-state fluoride ion battery with La2NiO4+d high voltage cathode

Nowroozi, Mohammad Ali and Wissel, Kerstin and Donzelli, Manuel and Hosseinpourkahvaz, Niloofar and Plana-Ruiz, Sergi and Kolb, Ute and Schoch, Roland and Bauer, Matthias and Malik, Ali Muhammad and Rohrer, Jochen and Ivlev, Sergei and Kraus, Florian and Clemens, Oliver (2020):
High cycle life all-solid-state fluoride ion battery with La2NiO4+d high voltage cathode.
In: Communications Materials, 1 (1), ISSN 2662-4443,
DOI: 10.1038/s43246-020-0030-5,
[Article]

Abstract

Fluoride ion batteries (FIBs) are a recent alternative all-solid-state battery technology. However, the FIB systems proposed so far suffer from poor cycling performance. In this work, we report La2NiO4.13 with a Ruddlesden-Popper type structure as an intercalation-based active cathode material in all solid-state FIB with excellent cycling performance. The critical charging conditions to maintain the conductivity of the cell were determined, which seems to be a major obstacle towards improving the cycling stability of FIBs. For optimized operating conditions, a cycle life of about 60 cycles and over 220 cycles for critical cut-off capacities of 50 mAh/g and 30 mAh/g, respectively, could be achieved, with average Coulombic efficiencies between 95 – 99%. Cycling of the cell is a result of fluorination/de-fluorination into and from the La2NiO4+d cathode, and it is revealed that La2NiO4.13 is a multivalent electrode material. Our findings suggest that La2NiO4.13 is a promising high energy cathode for FIBs.

Item Type: Article
Erschienen: 2020
Creators: Nowroozi, Mohammad Ali and Wissel, Kerstin and Donzelli, Manuel and Hosseinpourkahvaz, Niloofar and Plana-Ruiz, Sergi and Kolb, Ute and Schoch, Roland and Bauer, Matthias and Malik, Ali Muhammad and Rohrer, Jochen and Ivlev, Sergei and Kraus, Florian and Clemens, Oliver
Title: High cycle life all-solid-state fluoride ion battery with La2NiO4+d high voltage cathode
Language: English
Abstract:

Fluoride ion batteries (FIBs) are a recent alternative all-solid-state battery technology. However, the FIB systems proposed so far suffer from poor cycling performance. In this work, we report La2NiO4.13 with a Ruddlesden-Popper type structure as an intercalation-based active cathode material in all solid-state FIB with excellent cycling performance. The critical charging conditions to maintain the conductivity of the cell were determined, which seems to be a major obstacle towards improving the cycling stability of FIBs. For optimized operating conditions, a cycle life of about 60 cycles and over 220 cycles for critical cut-off capacities of 50 mAh/g and 30 mAh/g, respectively, could be achieved, with average Coulombic efficiencies between 95 – 99%. Cycling of the cell is a result of fluorination/de-fluorination into and from the La2NiO4+d cathode, and it is revealed that La2NiO4.13 is a multivalent electrode material. Our findings suggest that La2NiO4.13 is a promising high energy cathode for FIBs.

Journal or Publication Title: Communications Materials
Journal volume: 1
Number: 1
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Materialdesign durch Synthese
11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
Date Deposited: 04 Jun 2020 09:28
DOI: 10.1038/s43246-020-0030-5
Official URL: https://doi.org/10.1038/s43246-020-0030-5
Projects: This work was funded by the German Research Foundation within the Emmy Noether program (Grant CL 551/2-1).
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