| 摘要 |
Disclosed is a compound represented by the following formula 1. A lithium secondary battery using the same compound as electrode active material, preferably as cathode active material, is also disclosed. <?in-line-formulae description="In-line Formulae" end="lead"?>LiMP<SUB>1-x</SUB>A<SUB>x</SUB>O<SUB>4</SUB> [Formula 1]<?in-line-formulae description="In-line Formulae" end="tail"?> wherein M is a transition metal, A is an element having an oxidation number of +4 or less and 0<x<1. The electrode active material comprising a compound represented by the formula of LiMP<SUB>1-x</SUB>A<SUB>x</SUB>O<SUB>4 </SUB>shows excellent conductivity and charge/discharge capacity compared to LiMPO<SUB>4</SUB>.
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