Structural and Electrochemical Diversity in LiFe 1− δ  Zn  δ  SO 4 F Solid Solution: A Fe‐Based 3.9 V Positive‐Electrode Material | Zendy

Ati Mohammed | Zendy; Melot Brent C. | Zendy; Rousse Gwenaëlle | Zendy; Chotard JeanNoël | Zendy; Barpanda Prabeer | Zendy; Tarascon JeanMarie | Zendy

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Structural and Electrochemical Diversity in LiFe 1− δ Zn δ SO 4 F Solid Solution: A Fe‐Based 3.9 V Positive‐Electrode Material

Author(s) -

Ati Mohammed,

Melot Brent C.,

Rousse Gwenaëlle,

Chotard JeanNoël,

Barpanda Prabeer,

Tarascon JeanMarie

Publication year - 2011

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201104648

Subject(s) - electrochemistry , transition metal , crystallography , redox , content (measure theory) , materials science , electrode , chemistry , inorganic chemistry , mathematics , catalysis , mathematical analysis , biochemistry

Transition‐metal fluorosulfates are currently under intense investigation for their use as anodes in Li‐ion batteries. The substitution of Zn into LiFeSO 4 F has been found to trigger a transition from the tavorite structure to two separate polymorphs which crystallize in the sillimanite and triplite structures (see picture). These new phases show Fe 2+ /Fe 3+ redox potentials of 3.6 and 3.9 V versus Li, respectively.

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