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The electrochemical performance of high-voltage LiCoPO 4 electrode synthesized by high-temperature solid-state reaction was investigated. It is found that the existence of the carbon and Co 2 P decreases the discharge capacity; the LiCoPO 4 with pure olivine phase has a maximum discharge capacity and it can reach 135 mAh/g. The cyclic voltammetric measurements have shown that...
Recently, there exists a discrepancy on the lithium ion de-intercalation mechanism for LiCoPO4 electrode. In the present work, the study was focused upon exploring the origin of this discrepancy by studying the dependence of the impedance spectrum on the state of charge and the carbon content. For the pure LiCoPO4 electrode, the two plateaus in the charge curve are at 4.82 and 4.92 V. We have also...
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