The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Mar. 04, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Mi Jung Yoo, Daejeon, KR;
Young Hoon Lee, Daejeon, KR;
Min Jung Kim, Daejeon, KR;
Woo Yong Lee, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A method for manufacturing a secondary battery includes an electrode assembly preparation step of preparing an electrode assembly on which flat top and bottom surfaces are formed, a first pressing step of pressing the top and bottom surfaces of the electrode assembly by using a first pressing device, on which a curved surface is formed, to form a curved surface, which has a shape corresponding to that of the curved surface formed on the first pressing device, on each of the top and bottom surfaces of the electrode assembly, an accommodation step of accommodating the electrode assembly in a pouch type exterior in which a cup having a concave shape is formed, and a second pressing step of pressing the curved surfaces of the top and bottom surfaces of the electrode assembly and an outer surface of the pouch type exterior by using a second pressing device.