Sol-Gel Synthesis of 5 V LiCuxMn2−xO4 as a Cathode Material for Lithium Rechargeable Batteries
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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Title |
Sol-Gel Synthesis of 5 V LiCuxMn2−xO4 as a Cathode Material
for Lithium Rechargeable Batteries
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Creator |
Sulochana, A.
Thirunakaran, R. Sivashanmugam, A. Gopukumar, S. Yamaki, J.I. |
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Subject |
Lithium batteries
Electrochemical Power Sources |
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Description |
Spinel LiCuxMn2−xO4 0.025 x 0.1 has been synthesized using oxalic acid as the chelating agent using a sol-gel method to
obtain submicrometer-sized particles, good surface morphology, homogeneity, agglomeration, and high crystallinity involving
short heating time. X-ray diffraction XRD, scanning electron microscopy SEM, Fourier transform infrared spectroscopy, and
thermogravimetric and differential thermal analysis were carried out for the physical characterization of the synthesized powder.
The XRD patterns of LiCuxMn2−xO4 show the single-phase spinel product, which is in good agreement with the JCPDS card
35-782. SEM images show that the particles, on the average, are of 50 nm in size and are present as agglomerated clusters at all
dopant levels. Electrochemical cycling studies of the compound were carried out between 3 and 5 V to understand the redox
behavior of Cu2+ ions. The charge–discharge cycling studies of spinel material with Cu stoichiometry of x = 0.1 calcined at 850°C
exhibit an initial discharge capacity of 130 mAh g−1 and stabilized at 120 mAh g−1.
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Publisher |
The Electrochemical Society
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Date |
2008
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://cecri.csircentral.net/329/1/094-2008.pdf
Sulochana, A. and Thirunakaran, R. and Sivashanmugam, A. and Gopukumar, S. and Yamaki, J.I. (2008) Sol-Gel Synthesis of 5 V LiCuxMn2−xO4 as a Cathode Material for Lithium Rechargeable Batteries. Journal of the Electrochemical Society, 155 (3). A206-A210. ISSN 0013-4651 |
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Relation |
http://cecri.csircentral.net/329/
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