"B" AND "O" SITE DOPED AB2O4 SPINEL CATHODE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM AND Li-ION ELECTROCHEMICAL SYSTEMS CONTAINING THE SAME

A homogeneously dispersed Group VIII Period 4 element and chlorine-modified lithium manganese-based AB2O4 spinel cathode material prepared by a process comprising:

• dissolving a chlorine-containing salt, manganese nitrate, a nitrate of a Group VIII Period 4 element, and lithium nitrate to produce an aqueous solution;
• mixing the aqueous solution with a chelating agent;
• heating the mixture to produce an ash;
• grinding the ash;
• and
• calcining the ground ash for a time period no greater than 5 hours at a temperature of at least 350° C. to produce the homogeneously dispersed Group VIII Period 4 element (iron, cobalt, or nickel) and chlorine-modified lithium manganese-based AB2O4 spinel cathode material.

A lithium electrochemical cell comprising:

• an anode;
• and a cathode comprising a homogeneously dispersed Group VIII Period 4 element and chlorine-modified lithium manganese-based AB2O4 spinel cathode material prepared by a process comprising:
• dissolving a chlorine-containing salt, manganese nitrate, a nitrate of a Group VIII Period 4 element, and lithium nitrate to produce an aqueous solution;
• mixing the aqueous solution with a chelating agent to produce a mixture;
• heating the mixture to produce an ash;
• grinding the ash;
• and
• calcining the ground ash for a time period no greater than 5 hours at a temperature of at least 350° C. to produce the homogeneously dispersed Group VIII Period 4 element and chlorine-modified lithium manganese-based AB2O4 spinel cathode material.