Emulsion synthesis and characterization of lithium cobalt oxide powders for the lithium ion secondary batteries
Journal
Key Engineering Materials
Journal Volume
214-215
Pages
215-220
Date Issued
2002
Author(s)
Yeh P.-Y.
Abstract
Lithium cobalt oxide powders have been synthesized by a newly developed water-in-oil emulsion process to be used as the cathode material in lithium ion batteries. The monophasic LiCoO2 powders with a layered structure are completely formed after calcining the precursors at 800¢XC. The cationic concentration of the aqueous phase determines the crystallinity and particle size of the obtained powders. Raising the cationic concentration improves the crystallinity and also increases the particle size of LiCoO2 powders. LiCoO2 powders prepared from the high cationic concentration exhibit high discharge capacity, high coulomb efficiency as well as good cyclability.
Subjects
Cathode
Emulsion Synthesis
Lithium Cobalt Oxide
Lithium-Ion Battery
Powders
SDGs
Other Subjects
Calcination; Cathodes; Crystals; Electric discharges; Lithium batteries; Particle size analysis; Positive ions; Powders; Secondary batteries; Synthesis (chemical); Layered structures; Lithium compounds
Type
conference paper