18966805. POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY (NICHIA CORPORATION)
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Organization Name
Inventor(s)
Kenichi Kobayashi of Tokushima-shi JP
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
This abstract first appeared for US patent application 18966805 titled 'POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Original Abstract Submitted
A positive electrode active material for a nonaqueous electrolyte secondary battery includes particles of a lithium-transition metal composite oxide that contains nickel in the composition thereof and has a layered structure. The particles have an average particle size Dbased on electron microscopic observation in a range of 1 μm to 7 μm in which a ratio D/Dof a 50% particle size Din volume-based cumulative particle size distribution to the average particle size based on electron microscopic observation is in a range of 1 to 4, and a ratio D/Dof a 90% particle size Dto a 10% particle size Din volume-based cumulative particle size distribution is 4 or less.