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.

Date of Patent:
Oct. 06, 2026

Filed:

Nov. 08, 2022
Applicant:

SK on Co., Ltd., Seoul, KR;

Inventors:

Seo Roh Rhee, Daejeon, KR;

Ji San Kim, Daejeon, KR;

Chi Min Park, Daejeon, KR;

Tak Kyung Yoo, Daejeon, KR;

Assignee:

SK On Co., Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/24 (2021.01); C09J 7/38 (2018.01); C09J 11/04 (2006.01); C09J 11/06 (2006.01); H01M 50/293 (2021.01);
U.S. Cl.
CPC ...
H01M 50/24 (2021.01); C09J 7/387 (2018.01); C09J 11/04 (2013.01); C09J 11/06 (2013.01); H01M 50/293 (2021.01); C09J 2203/33 (2013.01); C09J 2301/408 (2020.08); C09J 2453/00 (2013.01); C09J 2491/00 (2013.01); C09J 2493/00 (2013.01);
Abstract

A battery cell stack of the present invention includes a plurality of battery cells and a resin layer wholly or partially in contact with an outer surface of at least one of the plurality of battery cells, wherein the resin layer includes a solvent-free adhesive and a flame retardant, and has a peel strength of 1,000 gf/in to 3,000 gf/in measured according to ASTM D3330, and a shear strength of 20 kgf/sq-in to 100 kgf/sq-in measured according to ASTM D1002, and the flame retardant includes one or more of a phosphorus-based flame retardant and a nitrogen-based flame retardant, such that the operational stability and flame retardancy may be simultaneously improved, while simplifying materials and processes necessary to manufacture the battery cell stack.


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