Additives of electrode active materials for enhancement of battery capacity

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PURPOSE : Additives of electrode active materials are provided to obtain excellent ion conductivity of the electrode active materials and improve the capacity and output of a secondary lithium battery using the additives thorugh a redox reaction.CONSTITUTION : Additives of electrode active materials is used for improving the performance of a secondary lithium battery. The additives improve the ion conductivity of the electrode active materials and include polyoxometalate which is capable of performing itself redox reaction. The additives of the electrode active materials are marked by chemical formula 1 of A_a[XM_12O_40]^(n-). In chemical formula 1, A is hydrogen, an element of IB, VIIA, IB, or VIIB group, rare earth elements, ammonium, alkyl ammonium, alkyl phosphate, or akyl arsonium.COPYRIGHT KIPO 2011