公开(公告)号：US20230256404A1

公开(公告)日：2023-08-17

申请号：US18108565

申请日：2023-02-10

申请人： PRIMEARTH EV ENERGY CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Hideki HAYASHI ,  Masakazu UMEHARA ,  Naoto OOSHIRO ,  Hiroki YAMADA ,  Yuuki KUDOU ,  Naoya KISHIMOTO

IPC分类号： B01F35/221 ,  B01F35/71 ,  B01F23/60 ,  B01F23/50 ,  B01F35/21 ,  H01M4/62 ,  C09D127/16 ,  C09D7/61

CPC分类号： B01F35/2218 ,  B01F35/71731 ,  B01F23/69 ,  B01F23/51 ,  B01F35/2134 ,  H01M4/628 ,  C09D127/16 ,  C09D7/61 ,  B01F2215/0422 ,  B01F2215/0431 ,  C08K2003/2227

摘要： A method for manufacturing slurry for an insulation protective layer of a rechargeable battery includes obtaining an insulation material calibration curve showing a relationship between particle size and compressibility of an insulation material using sets of particle size and compressibility of the insulation material, obtaining a binder calibration curve showing a relationship between particle size and compressibility of a binder using sets of particle size and compressibility of the binder, measuring particle sizes of the insulation material and the binder loaded, determining an optimal mixture weight ratio with reference to the curves so that compressibility of mixture powder of the insulation material and the binder equals a set compressibility based on the measured particle sizes, mixing the insulation material and the binder at the determined mixture weight ratio to form mixture powder, loading the mixture powder into a powder dispenser, and adding a solvent to the mixture powder.

公开(公告)号：US20230178708A1

公开(公告)日：2023-06-08

申请号：US18072560

申请日：2022-11-30

申请人： PRIMEARTH EV ENERGY CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Masakazu UMEHARA ,  Naomichi ISHIKAWA ,  Naoto OSHIRO ,  Yuuki KUDOU ,  Hideki HAYASHI ,  Hiroki YAMADA ,  Naoya KISHIMOTO

IPC分类号： H01M4/04 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/46 ,  H01M50/446

CPC分类号： H01M4/0435 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/463 ,  H01M50/446 ,  H01M2220/20

摘要： A method for manufacturing a rechargeable battery includes forming a mixture layer and an insulating layer on an electrode substrate having an edge extending in a specified direction so that an exposed portion where the electrode substrate is exposed extends between the edge and the insulating layer; pressing the mixture layer; and stretching an extension portion, located between the edge and the mixture layer, and the insulating layer in the specified direction. The stretching includes applying a stress greater than or equal to yield stress of the electrode substrate or greater than or equal to 0.2% proof stress of the electrode substrate and less than tensile strength of the electrode substrate to the extension portion, and applying a stress greater than or equal to yield stress of the insulating layer or greater than or equal to 0.2% proof stress of the insulating layer to the insulating layer.