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:
Apr. 14, 2020
Filed:
Sep. 15, 2014
Lg Chem, Ltd., Seoul, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Provided is a pouch type secondary battery including an electrode assembly accommodated in an accommodating part of a pouch exterior part. A vertex part of an inner surface of the accommodating part is rounded. The electrode assembly includes a unit stack part that has a structure (a) in which a type of radical units are repeatedly disposed, wherein electrodes and separators are alternately disposed and are integrally coupled in the radical units, and the number of the electrodes is the same as the number of the separators, or a structure (b) in which two or more types of radical units are disposed in a predetermined order, wherein electrodes and separators are alternately disposed and are integrally coupled in the radical units, and the number of the electrodes is the same as the number of the separators. Distal ends of neighboring ones of the separators are not adhered to each other.