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Materials 2009, 2(3), 857-868; doi:10.3390/ma2030857
Article

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

1
, 1
, 1
 and 1,2,*
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)
Download PDF [782 KB, uploaded 27 July 2009]
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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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.

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.

Chicago/Turabian Style

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


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