Microstructure and Electrochemical Properties of Post Heat-Treated Li(Ni_1/3Co_1/3Mn_1/3)O₂ Cathode Materials for Lithium Ion Battery

Abstract:

Li(Ni1/3Co1/3Mn1/3)O2 powders were synthesized by using an ultrasonic spray pyrolysis method, and then heat-treated at 900 or 1000°C for 20 h. The morphology of the as-synthesized powder was spherical. The post heat-treatment changed the particle size and morphology of the synthesized powders. Structural characteristics of the heat-treated powders were analyzed using XRD and SEM, and their electrochemical properties were compared. Higher first discharge capacity was obtained from the powder heat-treated at 1000°C, but its rough and rugged surface might cause a rapid decrease of the capacity retention.

• Periodical: Materials Science Forum (Volumes 510-511)
• Pages: 1102-1105
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.510-511.1102
• Online since: March 2006
• Authors: Seon Hye Kim, Kwang Bo Shim, Kyoung Ran Han, Chang Sam Kim
• Keywords: Cathode, Discharge Capacity, Lithium-Ion Battery, Particle Morphology, Particle Size

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