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Optimized LiVOPO4 for cathode Li-ion rechargeable battery

Bustam, Mohamad Azmi and Hasanaly, Siti Munirah and Ishihara, Tatsumi and Takita, Yusaku (2005) Optimized LiVOPO4 for cathode Li-ion rechargeable battery. Ionics, 11 . pp. 402-405. ISSN 9477047

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Abstract

. Improvement of the rate properties of orthorhombic LiVOPO4 by using milling approach and acetylene black additives as electronic binder is discussed. Average particle size of orthorhombic LiVOPO4 was reduced from 12.0 m to 6.1 m by milling process and Li intercalation capacity into LiVOPO4 increased to 40mAhg-1 at 0.4 mAcm-2 (C/5). At optimized acetylene black amount of 15 wt%, better uniformity in particle size distribution and dispersion for current distribution was obtained. Thus, enhancing the kinetic performance and fairly large reversible intercalation capacity of Li was achieved to a value of 100 and 60 mAhg-1 at high rate condition of C/5 (0.4 mAcm-2) and 1C (2 mAcm-2), respectively.

Item Type:Article
Subjects:Q Science > Q Science (General)
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:3806
Deposited By: Assoc Prof Dr Mohamad Azmi Bustam @ Khalil
Deposited On:04 Jan 2011 00:37
Last Modified:31 Dec 2012 04:10

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