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Lithium‐Ion Batteries: Disordered Lithium‐Rich Oxyfluoride as a Stable Host for Enhanced Li + Intercalation Storage (Adv. Energy Mater. 9/2015)
Author(s) -
Chen Ruiyong,
Ren Shuhua,
Knapp Michael,
Wang Di,
Witter Raiker,
Fichtner Maximilian,
Hahn Horst
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201570045
Subject(s) - intercalation (chemistry) , materials science , lithium (medication) , ion , energy storage , salt (chemistry) , lattice (music) , chemical engineering , nanotechnology , inorganic chemistry , chemical physics , chemistry , thermodynamics , organic chemistry , acoustics , engineering , endocrinology , medicine , power (physics) , physics
In article number 1401814, Ruiyong Chen and co‐workers describe a new intercalation compound, Li 2 VO 2 F, with a disordered rock‐salt structure. The compound enables up to ≈1.8 Li+ (420 mAh g −1 ) storage at ≈2.5 V, with a lattice volume change of only ≈3%. High capacity is observed, and at −10 °C Li 2 VO 2 F delivers a reversible capacity of 280 mAh g −1 at ≈2.4 V. These properties may allow the development of new structure‐stable and high‐capacity energy storage materials with better combination of mixed cation/anion in a disordered rock‐salt structure.
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