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:
May. 29, 2018
Filed:
Jun. 29, 2016
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Min-Hyung Guen, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-Si, Gyeonggi-Do, KR;
Abstract
A rechargeable battery according to an exemplary embodiment may include: an electrode assembly including an electrode provided with a coated region and an uncoated region tab at opposite sides of a separator and configured to be spirally wound; an insulating case to accommodate and electrically insulate the electrode assembly; a case to accommodate the insulating case; and a cap plate including an electrolyte injection opening for injecting an electrolyte solution and combined with an opening of the case, wherein the insulating case may include: an internal electrolyte injection opening corresponding to the electrolyte injection opening; a pillar around the internal electrolyte injection opening protruding toward an inner side of the cap plate; and a valve flap that rotates via a hinge, induces injection of the electrolyte solution, and prevents backflow of the electrolyte solution.