Synthesis and characterization of LiNi0.8Co0.2O2 as cathode material for lithium-ion batteries by a spray-drying method

Layered structure LiNi0.8Co0.2O2 cathode material for lithium-ion batteries was synthesized by sintering the precursor, which was obtained from the corresponding metal acetate solution via a spray-drying method. The structure, morphology and reaction mechanism of the powders were characterized by me...

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Bibliographic Details
Published in:Journal of power sources 2006-09, Vol.159 (1), p.291-294
Main Authors: WU, H. M, TU, J. P, CHEN, X. T, YUAN, Y. F, LI, Y, ZHAO, X. B, CAO, G. S
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
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Summary:Layered structure LiNi0.8Co0.2O2 cathode material for lithium-ion batteries was synthesized by sintering the precursor, which was obtained from the corresponding metal acetate solution via a spray-drying method. The structure, morphology and reaction mechanism of the powders were characterized by means of XRD, SEM and TG-DTA. The electrochemical properties of the LiNi0.8Co0.2O2 cathode were also investigated by using a coin-type cell containing Li metal as the anode in a potential range of 3.0-4.3V. Upon sintering the spray-dried powders at 750 deg C for 24h, the LiNi0.8Co0.2O2 particles obtained are fine, narrowly distributed and well crystallized. As a result, the synthesized LiNi0.8Co0.2O2 has excellent electrochemical properties. The simple synthesis procedure is time and energy saving, and thus is promising for commercial application.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2006.04.032