Abstract
Lithium manganese spinel (LiMn2O4) for Li-secondary battery was prepared by mechanical milling of raw materials in a argon atmosphere for 200 h. After milling and heating at 823 K for 3 h, the powder was observed X-ray diffraction pattern of lithium manganese spinel structure. The average milling powder diameter was approximately .0.1μm.The compounds of the MA-Li1.02Mn2O4 powder heated at 973 K for 3 h was evaluated as a 4 V cathode in a lithium non aqueous cell. The MA-Li1.02Mn2O4 have 136 Ah/kg of second discharge capacity.
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