Disclosed is a method of preparing a positive active material for a rechargeable lithium battery. In this method, a lithium salt is reflux-reacted with a metal salt in a basic solution. The positive active material has a spherical or sperical-like form, diameter of 10 nm to 10 .mu.m, and a surface area of 0.1 to 5 m.sup.2 /g.

Se divulga un método de preparar un material activo positivo para una batería recargable del litio. En este método, una sal del litio reflujo-se reacciona con una sal del metal en una solución básica. El material activo positivo tiene un esférico o sperical-como forma, el diámetro de 10 nm al mu.m 10, y un área superficial de 0.1 a 5 m.sup.2 /g.

 
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