High cycle life all-solid-state fluoride ion battery with La$_{2}$NiO$_{4+d}$ high voltage cathode
| Autor: | Jochen Rohrer, Matthias Bauer, Kerstin Wissel, Manuel Donzelli, Sergei I. Ivlev, Oliver Clemens, Ali Muhammad Malik, Ute Kolb, Florian Kraus, Sergi Plana-Ruiz, Niloofar Hosseinpourkahvaz, Mohammad Ali Nowroozi, Roland Schoch |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
High voltage cathode
Battery (electricity) Materials science Intercalation (chemistry) 02 engineering and technology Conductivity 010402 general chemistry 01 natural sciences Ion law.invention chemistry.chemical_compound law General Materials Science Materials of engineering and construction. Mechanics of materials 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences chemistry Chemical engineering Mechanics of Materials All solid state TA401-492 0210 nano-technology Fluoride ddc:600 |
| Zdroj: | Communications materials 1(1), 27 (2020). doi:10.1038/s43246-020-0030-5 Communications Materials, Vol 1, Iss 1, Pp 1-16 (2020) |
| Popis: | Communications materials 1(1), 27 (2020). doi:10.1038/s43246-020-0030-5 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 La$_{2}$NiO$_{4.13}$ 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 La$_{2}$NiO$_{4+d}$ cathode, and it is reve aled that La$_{2}$NiO$_{4.13}$ is a multivalent electrode material. Our findings suggest that La$_{2}$NiO$_{4.13}$ is a promising high energy cathode for FIBs. Published by Springer Nature, London |
| Databáze: | OpenAIRE |
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