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Article

Nitrate-Melt Synthesized HT-LiCoO2 as a Superior Cathode-Material for Lithium-Ion Batteries

by
Mariyappan Sathiya
1,
Annigere S. Prakash
1,
Kannadka Ramesha
1 and
Ashok K. Shukla
1,2,*
1
Central Electrochemical Research Institute, Karaikudi-630 006, Tamil Nadu, India
2
Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560 012, India
*
Author to whom correspondence should be addressed.
Materials 2009, 2(3), 857-868; https://doi.org/10.3390/ma2030857
Submission received: 16 June 2009 / Accepted: 17 July 2009 / Published: 27 July 2009
(This article belongs to the Special Issue Energy Technology for the 21st Century - Materials and Devices)
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Abstract

An electrochemically-active high-temperature form of LiCoO2 (HT-LiCoO2)is prepared by thermally decomposing its constituent metal-nitrates at 700 ºC. The synthetic conditions have been optimized to achieve improved performance with the HT-LiCoO2cathode in Li-ion batteries. For this purpose, the synthesized materials have been characterized by powder X-ray diffraction, scanning electron microscopy, and galvanostatic charge-discharge cycling. Cathodes comprising HT-LiCoO2 exhibit a specific capacity of 140 mAhg-1 with good capacity-retention over several charge-discharge cycles in the voltage range between 3.5 V and 4.2 V, and can sustain improved rate capability in contrast to a cathode constituting LiCoO2 prepared by conventional ceramic method. The nitrate-melt-decomposition method is also found effective for synthesizing Mg-/Al- doped HT-LiCoO2; these also are investigated as cathode materials for Li-ion batteries.
Keywords: LiCoO2; synthesis; nitrate decomposition; Li-ion batteries LiCoO2; synthesis; nitrate decomposition; Li-ion batteries
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MDPI and ACS Style

Sathiya, M.; Prakash, A.S.; Ramesha, K.; Shukla, A.K. Nitrate-Melt Synthesized HT-LiCoO2 as a Superior Cathode-Material for Lithium-Ion Batteries. Materials 2009, 2, 857-868. https://doi.org/10.3390/ma2030857

AMA Style

Sathiya M, Prakash AS, Ramesha K, Shukla AK. Nitrate-Melt Synthesized HT-LiCoO2 as a Superior Cathode-Material for Lithium-Ion Batteries. Materials. 2009; 2(3):857-868. https://doi.org/10.3390/ma2030857

Chicago/Turabian Style

Sathiya, Mariyappan, Annigere S. Prakash, Kannadka Ramesha, and Ashok K. Shukla. 2009. "Nitrate-Melt Synthesized HT-LiCoO2 as a Superior Cathode-Material for Lithium-Ion Batteries" Materials 2, no. 3: 857-868. https://doi.org/10.3390/ma2030857

APA Style

Sathiya, M., Prakash, A. S., Ramesha, K., & Shukla, A. K. (2009). Nitrate-Melt Synthesized HT-LiCoO2 as a Superior Cathode-Material for Lithium-Ion Batteries. Materials, 2(3), 857-868. https://doi.org/10.3390/ma2030857

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