H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/50 (2006.01) C01G 45/02 (2006.01) H01M 4/52 (2006.01)
Patent
CA 2682942
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: Li1+xMn2-x-yYyO4 [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.
L'invention concerne du lithium/manganèse présentant une puissance élevée et une excellente stabilité à haute température. En particulier, l'invention concerne une poudre de particules de lithium/manganèse présentant un diamètre particulaire primaire supérieur ou égale à 1 µm et un diamètre particulaire moyen de particules comportementales (D50) compris entre 1 et 10 µm (inclus), qui est sensiblement formée de particules monocristallines. Cette poudre est représentée par la formule: Li1+xMn2-x-yYyO4 [Y = Al, Mg ou Co; 0,03 <= x <= 0,15; 0,05 <= y <= 0,20], l'élément Y étant dispersé de manière homogène à l'intérieur des particles, le rapport I(400)/I(111) étant supérieur ou égal à 33%, et le rapport I(440)/I(111) étant supérieur ou égal à 16%.
Ishizaki Kazutoshi
Kajiyama Akihisa
Sadamura Hideaki
Uegami Masayuki
Goudreau Gage Dubuc
Toda Kogyo Corporation
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