H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/505 (2010.01) C01G 45/12 (2006.01)
Patent
CA 2749696
The present invention relates to positive electrode active substance particles for lithium ion batteries, comprising lithium manganate particles comprising Li and Mn as main components and having a cubic spinel structure (Fd- 3m), wherein primary particles of the positive electrode active substance have a dodecahedral or higher-polyhedral shape in which none of crystal planes equivalent to the (111) plane are located adjacent to each other, and flat crystal planes are crossed with each other to form a clear ridge, and an average primary particle diameter of the primary particles is not less than 1 µm and not more than 20 µm. The positive electrode active substance particles according to the present invention are excellent in packing property, load characteristics and high-temperature stability.
La présente invention concerne une poudre de matériau actif d'électrode positive pour batteries au lithium-ion qui est composée de particules de manganate de lithium comprenant du Li et du Mn comme principaux composants et qui présente une structure spinelle cubique (Fd-3m). Ladite poudre est caractérisée en ce que les particules primaires ont une forme polyédrique avec au moins 12 faces et un diamètre moyen de 1 à 20 µm. Dans chaque particule primaire de forme polyédrique, aucune face cristalline équivalente au plan (111) n'est adjacente à une autre, et des faces cristallines plates se rejoignent pour former des bords distincts. Ladite poudre de matériau actif présente d'excellentes propriétés en matière de compactage, de caractéristiques de charge et de stabilité à haute température.
Koga Kazumichi
Masukuni Hiroaki
Matsumoto Kazutoshi
Uegami Masayuki
Goudreau Gage Dubuc
Toda Kogyo Corporation
LandOfFree
Positive electrode active material for secondary batteries... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positive electrode active material for secondary batteries..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positive electrode active material for secondary batteries... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1471038