Optimization of Layered Cathode Materials for Lithium-Ion Batteries

• Published in: Materials Vol. 9; no. 7; p. 595
• Main Authors: Julien, Christian, Mauger, Alain, Zaghib, Karim, Groult, Henri
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI 19-07-2016; MDPI AG
• Subjects: cathodes; Chemical Sciences; layered compounds; lithium-ion batteries; nanomaterials; Physics; Review; layered compounds; nanomaterials; lithium-ion batteries; cathodes
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/MA9070595

This review presents a survey of the literature on recent progress in lithium-ion batteries, with the active sub-micron-sized particles of the positive electrode chosen in the family of lamellar compounds Li
O₂, where
stands for a mixture of Ni, Mn, Co elements, and in the family of
Li₂MnO₃•(1 -
)LiNi
Mn
O₂ layered-layered integrated materials. The structural, physical, and chemical properties of these cathode elements are reported and discussed as a function of all the synthesis parameters, which include the choice of the precursors and of the chelating agent, and as a function of the relative concentrations of the
cations and composition
. Their electrochemical properties are also reported and discussed to determine the optimum compositions in order to obtain the best electrochemical performance while maintaining the structural integrity of the electrode lattice during cycling.