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Nanoarchitecture Multi‐Structural Cathode Materials for High Capacity Lithium Batteries
Author(s) -
Wang Dapeng,
Belharouak Ilias,
Zhou Guangwen,
Amine Khalil
Publication year - 2013
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201200536
Subject(s) - materials science , cathode , spinel , lithium (medication) , electrochemistry , composite number , chemical engineering , lithium vanadium phosphate battery , transmission electron microscopy , hydroxide , nanotechnology , composite material , metallurgy , electrode , chemistry , engineering , endocrinology , medicine
Lithium‐rich composite cathodes have been extensively investigated for lithium‐ion batteries. Nanoarchitecture hydroxide precursor for these cathodes with two levels of particle agglomeration (1–2 μm and 10 μm) is produced using a co‐precipitation method. Transmission electron microscopy and X‐ray diffraction confirm that the precursor is a composite comprising transition metal hydroxides and Mn 3 O 4 . Cathode materials synthesized based on the precursor are “layered ( R $ \bar 3 $ m)‐layered ( C 2/m)‐spinel ( F d $ \bar 3 $ m)” composite phase. The electrochemical performance of lithium cells utilizing this material as the cathode is determined to be excellent. Both the layered‐layered‐spinel composite structure and the nanoarchitecture morphology contribute to the electrochemical performance advantage of this material over other cathode materials.