公开(公告)号：US20220059905A1

公开(公告)日：2022-02-24

申请号：US17445291

申请日：2021-08-17

申请人： Samsung SDI Co., Ltd.

发明人： In Seop BYUN

IPC分类号： H01M50/46 ,  H01M10/052 ,  H01M10/0587 ,  H01M4/13 ,  H01M50/105 ,  H01M50/531

摘要： An electrode assembly includes: a first electrode plate having a first electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the first electrode uncoated portion; a second electrode plate having a second electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the second electrode uncoated portion; a separator between the first electrode plate and the second electrode plate; a tab cover tape attached to the one surfaces of the first electrode uncoated portion and the second electrode uncoated portion; an uncoated portion cover tape attached to each of the other surfaces of the first electrode uncoated portion and the second electrode uncoated portion; and an insulating tape attached onto the second electrode plate at a position corresponding to the first electrode uncoated portion.

公开(公告)号：US20240304873A1

公开(公告)日：2024-09-12

申请号：US18238645

申请日：2023-08-28

申请人： SAMSUNG SDI CO., LTD.

发明人： In Seop BYUN

IPC分类号： H01M10/42 ,  H01M4/04 ,  H01M10/04

CPC分类号： H01M10/4235 ,  H01M4/0416 ,  H01M4/0471 ,  H01M10/0431

摘要： A method for manufacturing an electrode assembly and an electrode assembly prepared according to the method, the method including preparing an electrode assembly body; preparing a binder solution in a storage tank; impregnating a first region of one end of the electrode assembly body with the binder solution; and drying the binder solution applied to the electrode assembly body.

公开(公告)号：US20220231266A1

公开(公告)日：2022-07-21

申请号：US17595910

申请日：2020-05-07

申请人： Samsung SDI Co., Ltd.

发明人： In Seop BYUN ,  Cheon Soo KIM ,  Jin Uk LEE ,  Chong Hoon LEE ,  Young Dae KO

IPC分类号： H01M4/04 ,  H01M10/0569

摘要： An embodiment of the present invention relates to a secondary battery, and the object of the present invention is to provide a secondary battery capable of improving the flatness of an electrode assembly and reducing internal resistance when the electrode assembly is rolled. To this end, disclosed is a secondary battery comprising: an electrode assembly rolled including a positive electrode plate, a negative electrode plate, and a separator, wherein the positive electrode plate has positive electrode uncoated portions provided at a rolled central portion thereof and a rolled end portion thereof, and the negative electrode plate has negative electrode uncoated portions provided at a rolled central portion thereof and a rolled end portion thereof; a first positive electrode foil tab and a second positive electrode foil tab respectively connected to the positive electrode uncoated portions; a first negative electrode foil tab and a second negative electrode foil tab respectively connected to the negative electrode uncoated portions; a positive electrode current collection tab connected together to the first positive electrode foil tab and the second positive electrode foil tab; a negative electrode current collection tab connected together to the first negative electrode foil tab and the second negative electrode foil tab; and a pouch-type case for accommodating the electrode assembly.