Abstract
LiFePO 4 is a potential candidate for the cathode material of the lithium secondary batteries. A co-precipitation method was adopted to prepare LiFePO 4 because it is simple and cheap. Nitrogen gas was needed to prevent oxidation of Fe 2+ in the aqueous solution. The co-precipitated precursor shows the high reactivity with the reductive gas, and the single phase of LiFePO 4 is successfully synthesized with the aid of carbon under less reductive conditions. LiFePO 4 fine powder prepared by co-precipitation method shows high rate capability, impressive specific capacity and cycle property.
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