公开(公告)号：US20240347781A1

公开(公告)日：2024-10-17

申请号：US18294103

申请日：2022-11-04

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： In Kee HAN ,  Joo Hwan SUNG ,  Cheon Hee BOK ,  Joonghoon LEE ,  Minkook MOON ,  Eun Young KIM

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/586 ,  H01M50/59

CPC classification number: H01M10/4235 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/586 ,  H01M50/59

Abstract: An electrode assembly for a secondary battery includes a stacked body including a sheet-like positive electrode, a sheet-like negative electrode, and a sheet-like separator interposed between the sheet-like positive electrode and the sheet-like negative electrode, the sheet-like positive electrode, the sheet-like negative electrode, and the sheet-like separator being wound; and a nonwoven fabric having a porous structure, the nonwoven fabric being located closer to a winding starting end of the electrode assembly than the sheet-like positive electrode in a region including a portion corresponding to one end of the sheet-like positive electrode.

公开(公告)号：US20240372188A1

公开(公告)日：2024-11-07

申请号：US18291145

申请日：2022-12-13

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： In Kee HAN ,  Eun Young KIM ,  Cheon Hee BOK ,  Joo Hwan SUNG ,  Jangho LEE ,  Joonghoon LEE

IPC: H01M50/193 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/167 ,  H01M50/188 ,  H01M50/342

Abstract: A cap assembly, a cylindrical secondary battery including the same, and a method of manufacturing a cylindrical secondary battery including the same are provided. The cap assembly includes a polymer gasket locatable between a portion of the cap assembly and an electrode assembly. The polymer gasket includes a polymer material having a melting point of 250° C. or more.