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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.:

US 12199295 B1

PDFFull Text
Date of Patent:
Jan. 14, 2025

Filed:

Jun. 29, 2020

Secondary battery

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Dae Kyu Kim, Yongin-si, KR;

Jin Young Moon, Yongin-si, KR;

Sung Gwi Ko, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 50/152 (2021.01); H01M 50/107 (2021.01); H01M 50/147 (2021.01); H01M 50/167 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/342 (2021.01); H01M 50/578 (2021.01); H01M 50/591 (2021.01);
U.S. Cl.
CPC ...
H01M 50/152 (2021.01); H01M 50/107 (2021.01); H01M 50/147 (2021.01); H01M 50/167 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/3425 (2021.01); H01M 50/578 (2021.01); H01M 50/591 (2021.01); H01M 2200/20 (2013.01);
Abstract

The present invention relates to a secondary battery, wherein the length of a second bending portion of a safety plate covering an extension portion of a cap-up can be adjusted to prevent deformation of the safety plate and improve the sealing force of the secondary battery, even when a crimping part having a flat upper structure in which the sealing force can deteriorate due to the low compression rate of an insulating gasket is used. For example, disclosed is a secondary battery comprising: a cylindrical can; an electrode assembly which, together with an electrolyte, is accommodated in the cylindrical can; a cap assembly coupled to an upper portion of the cylindrical can; and an insulating gasket interposed between the cap assembly and the cylindrical can. The cap assembly comprises: a cap-up; and a safety plate which is installed below the cap-up and has a second bending portion that surrounds an extension portion of an edge of the cap-up and covers a portion of the upper surface of the extension portion. A second length, which is the length of the second bending portion, has any one value between 50% to 54%, inclusive, of a first length, which is the length of the extension portion.

Find Patent Forward Citations

Kim, Dae. (2025). Secondary battery (U.S. Patent No. 12199295). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12199295

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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