US 12,451,492 B2
Producing method for positive electrode plate
Naoya Kishimoto, Nagoya (JP); and Shotaro Deguchi, Toyohashi (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP); TOYOTA BATTERY CO., LTD., Shizuoka-Ken (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP)
Filed by Prime Planet Energy & Solutions, Inc., Tokyo (JP); PRIMEARTH EV ENERGY CO., LTD., Shizuoka-ken (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Mar. 17, 2023, as Appl. No. 18/185,373.
Claims priority of application No. 2022-069617 (JP), filed on Apr. 20, 2022.
Prior Publication US 2023/0343967 A1, Oct. 26, 2023
Int. Cl. H01M 4/04 (2006.01); H01M 4/1393 (2010.01); H01M 4/66 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/666 (2013.01) [H01M 4/1393 (2013.01); H01M 4/667 (2013.01); H01M 2004/028 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A producing method for a positive electrode plate comprising a positive electrode mixture layer on a surface of a current collector includes:
positive-electrode-paste preparing of preparing a positive electrode paste including carbon nanotubes, positive active material particles, and a solvent;
coating of coating the positive electrode paste on the surface of the current collector to form a positive electrode paste layer on the surface of the current collector; and
drying of drying the positive electrode paste layer to form the positive electrode mixture layer, wherein
the carbon nanotubes have the characteristics of being attracted by a magnet, and
the magnet attracts the carbon nanotubes included in the positive electrode paster layer toward a side of the current collector at least any one of directly before the drying and during the drying.