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:
Feb. 02, 2021
Filed:
Aug. 10, 2018
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Sdi Co., Ltd., Yongin-si, KR;
Dooyeon Lee, Yongin-si, KR;
Makoto Odawara, Yokohama, JP;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;
Abstract
A secondary battery includes an electrode assembly including a negative electrode layer, a separation film and a positive electrode layer arranged in a first direction; and a case in which the electrode assembly is accommodated, the case including a first pressing portion which faces a first side surface of the electrode assembly accommodated in the case and applies a first pressing force to the electrode assembly along the first direction. The first pressing portion includes: a first surface facing the first side surface of the electrode assembly accommodated in the case; and a second surface opposite to the first surface and exposed outside the case, the second surface of the first pressing portion including a plurality of first curved grooves arranged along the first side surface of the electrode assembly accommodated in the case and lengthwise extending in a second direction crossing the first direction.