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:
Nov. 09, 2021
Filed:
Jan. 07, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/653 (2014.01); H01M 10/643 (2014.01); H01M 50/20 (2021.01); H01M 50/116 (2021.01); H01M 50/124 (2021.01); H01M 50/147 (2021.01); H01M 50/531 (2021.01); B23K 26/21 (2014.01); H01M 10/04 (2006.01);
U.S. Cl.
CPC ...
H01M 10/653 (2015.04); B23K 26/21 (2015.10); H01M 10/0422 (2013.01); H01M 10/0431 (2013.01); H01M 10/643 (2015.04); H01M 50/116 (2021.01); H01M 50/124 (2021.01); H01M 50/147 (2021.01); H01M 50/20 (2021.01); H01M 50/531 (2021.01);
Abstract
A cylindrical secondary battery including a cylindrical battery case configured to receive an electrode assembly and an electrolytic solution, a cap assembly located on the open upper end of the cylindrical battery case, and a jelly-roll type electrode assembly configured to have a structure in which a positive electrode sheet and a negative electrode sheet are wound in the state in which a separator is interposed therebetween, wherein a protective layer, made of a material that exhibits high thermal conductivity, is formed on at least a portion of the inner surface of the cylindrical battery case, including a crimping part is provided.