公开(公告)号：US20240372070A1

公开(公告)日：2024-11-07

申请号：US18684688

申请日：2022-06-30

Applicant: ZEON CORPORATION

Inventor： Kazuki ASAI ,  Takumi SUGIMOTO ,  Noriyuki OSHIDA

IPC: H01M4/1391 ,  H01M4/02 ,  H01M4/525 ,  H01M4/62

Abstract: The following are performed in stated order inside of a granulation tank including two or more agitators having different stirring axes to one another: (i) stirring a powder material containing an electrode active material to place the powder material in a stirred state; (ii) adding a composition containing a binder and a solvent to the powder material in the stirred state to obtain pre-composite particles; and (iii) stirring the pre-composite particles after addition of the composition is complete to perform particle adjustment and obtain composite particles.

公开(公告)号：US20240429396A1

公开(公告)日：2024-12-26

申请号：US18684835

申请日：2022-06-30

Applicant: ZEON CORPORATION

Inventor： Kazuki ASAI ,  Takumi SUGIMOTO ,  Noriyuki OSHIDA

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/36

Abstract: Composite particles contain an electrode active material, a conductive material, and a binder. These composite particles have an average value of area-equivalent diameter of not less than 20 μm and not more than 250 μm, a coefficient of variation of area-equivalent diameter, calculated according to formula 1: (standard deviation of area-equivalent diameter/average value of area-equivalent diameter)×100, of not less than 5% and not more than 50%, and a coefficient of density, calculated according to formula 2: compressed density/bulk density, of not less than 1.3 and not more than 3.5.