Journal
JOURNAL OF POWER SOURCES
Volume 159, Issue 2, Pages 1322-1327Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2005.11.080
Keywords
LiMn1/3Ni1/3Co1/3O2; cathode material; oxalate co-precipitation; lithium ion battery
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The layered LiMn1/3Ni1/3Co1/3O2 cathode materials were synthesized by an oxalate co-precipitation method using different starting materials of LiOH, LiNO3, [Mn1/3Ni1/3Co1/3]C(2)O(4)(.)2H(2)O and [Mn1/3Ni1/3Co1/3](3)O-4. The morphology, structural and electrochemical behavior were characterized by means of SEM, X-ray diffraction analysis and electrochemical charge-discharge test. The cathode material synthesized by using LiNO3 and [Mn1/3Ni1/3Co1/3]C(2)O(4)(.)2H(2)O showed higher structural integrity and higher reversible capacity of 178.6 mAh g(-1) in the voltage range 3.0-4.5 V versus Li with constant current density of 40 mA g(-1) as well as lower irreversible capacity loss of 12.9% at initial cycle. The rate capability of the cathode was strongly influenced by particle size and specific surface area. (c) 2005 Elsevier B.V. All rights reserved.
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