Positive manganese lithium oxide-stabilised electrode for a secondary lithium battery and a method for producing same

A method for producing a positive manganese lithium oxide stabilized electrode for a secondary lithium battery, the method comprising the steps of:

• producing a three phases compound including lithium manganese oxide with spinel structure (LiMn2-x-yNaxMyO4, where M is a metal, and for 0.0≤x≤0.5;
• 0.0≤y≤0.5), sodium manganese oxide-lithium (Na1-z-tMnLizMtO2, where 0.1≤z≤0.5;
• 0.0≤t≤0.3), and sodium carbonate (Na2CO3);
• wherein a molar ratio between lithium (Li), manganese (Mn), sodium (Na) and metal (M) selected from the group consisting of Li, Sr, Mg, Ni, Cr, Fe, Al, Co, Cu, Ga, In, Ca, Ti, Zn, Si;
• which is indicated by Li:Mn:Na:M;
• in the ratio of 1:2-nM:
• nna:
• nM;
• wherein 0.01≤nna≤0.5;
• 0.0≤nM≤0.5, in a polymer solution or a mixture of the precursors and then subjected to a heat treatment of 250° C. to 1000° C. in an air or inert atmosphere or a combination of both.

A positive manganese lithium oxide stabilized electrode for a secondary lithium battery comprising a compound including LiMn2-x-yNaxMyO4/Na1-zMnLizMtO2/Na2CO3, wherein 0.0≤x≤0.5;

• 0.0≤y≤0.5;
• 0.1≤z≤0.5;
• 0.0≤t≤0.3;
• and M is selected from the group consisting of Li, Sr, Mg, Ni, Cr, Fe, Al, Co, Cu, Ga, In, Ca, Ti, and Zn;
• Yes.