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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 11367923 B1

PDFFull Text
Date of Patent:
Jun. 21, 2022

Filed:

Dec. 14, 2017

Cylindrical secondary battery

Applicant:

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

Inventors:

Dae Kyu Kim, Yongin-si, KR;

Sung Gwi Ko, Yongin-si, KR;

Shin Jung Kim, Yongin-si, KR;

Byoung Min Chun, Yongin-si, KR;

Assignee:

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

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Christopher P Domone

Assistant Examiner:

Kimberly Wyluda

Int. Cl.
CPC ...
H01M 50/30 (2021.01); H01M 50/107 (2021.01); H01M 50/166 (2021.01); H01M 50/54 (2021.01); H01M 50/171 (2021.01); H01M 50/572 (2021.01);
U.S. Cl.
CPC ...
H01M 50/30 (2021.01); H01M 50/107 (2021.01); H01M 50/166 (2021.01); H01M 50/171 (2021.01); H01M 50/54 (2021.01); H01M 50/572 (2021.01);
Abstract

The present invention provides a cylindrical secondary battery which can have increased safety and capacity, and enhanced scratch resistance and pressure resistance on an external contact surface. To this end, a cylindrical secondary battery is disclosed, the battery comprising: a cylindrical case; an electrode assembly received in the case; and a cap assembly for sealing the case, wherein the cap assembly comprises a top plate having a notch formed on at least one surface thereof, a middle plate coupled to the top plate and including a first through-hole formed through the center thereof, and a bottom plate electrically connected with the electrode assembly and coupled to the top plate through the first through-hole of the middle plate, and includes a surface-treated region formed by surface-treating a surface of the top plate so as to have a concave-convex structure.

Find Patent Forward Citations

Kim, Dae. (2022). Cylindrical secondary battery (U.S. Patent No. 11367923). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11367923

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

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