LITHIUM MANGANESE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCTION THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

Disclosed is lithium manganese having high power and excellent high-temperature stability. Specifically disclosed is a lithium manganese particle powder which has a primary particle diameter of 1 µm or more, an average particle diameter of behavioral particles (D50) of 1 to 10 µm (inclusive), which substantially forms a single crystal particle, and which is represented by the chemical formula: Li_1+xMn_2-x-yY_yO₄ [Y = Al, Mg or Co; 0.03 = x = 0.15, 0.05 = y = 0.20], wherein the element Y is homogeneously dispersed in the interior of the particle, the I(400)/I(111) ratio is 33% or more, and the I(440)/I(111) ratio is 16% or more.