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:
Jul. 29, 2025
Filed:
May. 21, 2024
Lg Energy Solution, Ltd., Seoul, KR;
Yong-Hwan Kwon, Daejeon, KR;
Dong-Wook Kim, Daejeon, KR;
Ji-Young Park, Daejeon, KR;
Ju-Nam Son, Daejeon, KR;
Seo-Hyeon Chae, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A cylindrical battery includes a battery housing accommodating an electrode assembly having a first electrode, a second electrode, and a separator spirally wound about a central axis in a core of the electrode assembly such that the first and second electrodes each have an inner end and an outer end. A stress vulnerable sector is defined by an arc of an outer circumference of the electrode assembly between a first radius and a second radius extending from the central axis through the inner end of the first electrode and the second electrode, respectively. A stress amplification sector is defined by an arc of the outer circumference between a third radius and a fourth radius extending from the central axis through the outer end of the first electrode and the second electrode, respectively. At least the outer end of the first electrode is not positioned within the stress vulnerable sector.