Electrochemical characterization of monoclinic and orthorhombic Li3CrF6 as positive electrodes in lithium-ion batteries synthesized by a sol–gel process with environmentally benign chemicals

Lieser, Georg; Winkler, Volker; Geßwein, Holger; Biasi, Lea de; Glatthaar, Sven; Hoffmann, Michael J.; Ehrenberg, Helmut; Binder, Joachim R.

doi:10.1016/j.jpowsour.2015.06.036

Cited by 11 publications

(12 citation statements)

References 41 publications

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“…CuF 2 ,B iF 3 ,a nd MnF 3 )a nd ternary lithium metal fluorides (e.g.L i 3 VF 6 ,L i 2 MnF 5 ,a nd Li 3 CrF 6 )h ave also been reported as cathode materials for LIBs. [92,95,[97][98][99][100][101] CuF 2 is regarded as ap romising conversion cathode material due to its high energy density and low cost. However,inc ontrast to iron fluoride,t he reversibility of CuF 2 is intrinsically hampered during lithiation/delithiation.…”

Section: Halide-based Electrode Materialsmentioning

confidence: 99%

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Halide‐Based Materials and Chemistry for Rechargeable Batteries

et al. 2020

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Rechargeable batteries are considered one of the most effective energy storage technologies to bridge the production and consumption of renewable energy. The further development of rechargeable batteries with characteristics such as high energy density, low cost, safety, and a long cycle life is required to meet the ever‐increasing energy‐storage demands. This Review highlights the progress achieved with halide‐based materials in rechargeable batteries, including the use of halide electrodes, bulk and/or surface halogen‐doping of electrodes, electrolyte design, and additives that enable fast ion shuttling and stable electrode/electrolyte interfaces, as well as realization of new battery chemistry. Battery chemistry based on monovalent cation, multivalent cation, anion, and dual‐ion transfer is covered. This Review aims to promote the understanding of halide‐based materials to stimulate further research and development in the area of high‐performance rechargeable batteries. It also offers a perspective on the exploration of new materials and systems for electrochemical energy storage.

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Section: Halide-based Electrode Materialsmentioning

confidence: 99%

“…CuF 2 , BiF 3 , and MnF 3 ) and ternary lithium metal fluorides (e.g. Li 3 VF 6 , Li 2 MnF 5 , and Li 3 CrF 6 ) have also been reported as cathode materials for LIBs . CuF 2 is regarded as a promising conversion cathode material due to its high energy density and low cost.…”

Section: Halides In Lithium‐ion Batteriesmentioning

confidence: 99%

Halide‐Based Materials and Chemistry for Rechargeable Batteries

et al. 2020

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“…B. CuF 2 , BiF 3 und MnF 3 ) und tertiäre Lithium‐Metallfluoride (z. B. Li 3 VF 6 , Li 2 MnF 5 und Li 3 CrF 6 ) als Kathodenmaterialien für LIBs vermeldet . CuF 2 gilt dank seiner hohen Energiedichte und niedrigen Kosten als vielversprechendes Konversionskathodenmaterial.…”

Section: Halogenide In Lithium‐ionen‐batterienunclassified

Halogenid‐basierte Materialien und Chemie für wiederaufladbare Batterien

et al. 2020

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Wiederaufladbare Batterien gelten als eine der effektivsten Energiespeichertechnologien, die die Überleitung zwischen der Erzeugung und dem Verbrauch erneuerbarer Energien schafft. Die weitergehende Entwicklung wiederaufladbarer Batterien mit Eigenschaften wie hohe Energiedichte, Kostengünstigkeit, Sicherheit und eine lange Lebensdauer muss dabei die stetig zunehmenden Energiespeicheranforderungen erfüllen. Dieser Aufsatz zeigt den wissenschaftlichen und technologischen Fortschritt wiederaufladbarer Batterien auf, der durch Halogenid‐basierten Materialien und Chemikalien zustande kommt, inklusive der Verwendung von Halogenid‐Elektroden, Halogendotierung von Elektroden und/oder Elektrodenoberflächen, Elektrolyt‐Design und Additive, die schnellen Ionen‐Shuttle und stabile Elektroden/Elektrolyt‐Grenzflächen ermöglichen sowie neue Batteriechemie realisieren. Eine Vielzahl von Batteriechemie basierend auf monovalentem Kation‐, multivalenten Kation‐, Anion‐ oder Dual‐Ionen‐Transfer wird beschrieben. Dieser Aufsatz zielt darauf ab, das Verständis von Halogenid‐basierten Materialien und Chemikalien zu fördern und die weitere Forschung und Entwicklung im Bereich hochleistungsfähiger wiederaufladbarer Batterien anzuregen. Er soll außerdem einen Ausblick auf die Nutzung neuer elektrochemischer Energiespeichermaterialien und ‐systeme bieten.

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“…Based on previous studies of lithium metal fluorides [15][16][17][18]21,[32][33][34][35] it is assumed that the During the following cycles, a slight increase in the electrode polarisation can be seen, as indicated by a shift of oxidation/reduction peaks in the cyclic voltammetry data. The cathode material shows good cyclic stability over 20 cycles (Fig.…”

Section: Electrochemical Characterisationmentioning

confidence: 99%

LiCaFeF 6 : A zero-strain cathode material for use in Li-ion batteries

Biasi

Lieser

Dräger

et al. 2017

Journal of Power Sources

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A new zero-strain LiCaFeF6 cathode material for reversible insertion and extraction of lithium ions is presented. LiCaFeF6 is synthesized by a solid-state reaction and processed to a conductive electrode composite via high-energy ball-milling. In the first cycle, a discharge capacity of 112 mAh g-1 is achieved in the voltage range from 2.0 V to 4.5 V. The electrochemically active redox couple is Fe3+/Fe2+ as confirmed by Mössbauer spectroscopy and X-ray absorption spectroscopy. The compound has a trigonal colqu c). By means of in situ and ex situ XRD as well as X-ray absorption fine structure spectroscopy a reversible response to Li uptake/release is found. For an uptake of 0.8 mole Li per formula unit only minimal changes occur in the lattice parameters causing a total change in unit cell volume of less than 0.5 %. The spatial distribution of cations in the crystal structure as well as the linkage between their corresponding fluorine octahedra is responsible for this very small structural response. With its zero-strain behaviour this material is expected to exhibit only negligible mechanical degradation. It may be used as a cathode material in future lithium-ion batteries with strongly improved safety and cycle life.

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Electrochemical characterization of monoclinic and orthorhombic Li3CrF6 as positive electrodes in lithium-ion batteries synthesized by a sol–gel process with environmentally benign chemicals

Cited by 11 publications

References 41 publications

Halide‐Based Materials and Chemistry for Rechargeable Batteries

Halide‐Based Materials and Chemistry for Rechargeable Batteries

Halogenid‐basierte Materialien und Chemie für wiederaufladbare Batterien

LiCaFeF 6 : A zero-strain cathode material for use in Li-ion batteries

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