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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 12683245 B1

PDFFull Text
Date of Patent:
Jul. 14, 2026

Filed:

Jul. 31, 2023

Separator and electrochemical device including the same

Applicants:

W-scope Korea Co.,ltd., Cheongju-si, KR;

W-scope Chungju Plant Co., Ltd, Chungju-si, KR;

Inventors:

Byung Hyun Kim, Cheongwon-gu, KR;

Dae Bog Park, Cheonan-si, KR;

Seok Hyeon Gong, Gongju-si, KR;

Kwang Ho Choi, Cheongju-si, KR;

Jeong Rae Kim, Seoul, KR;

Assignees:

W-SCOPE KOREA CO., LTD., Cheongju-si, KR;

W-SCOPE CHUNGJU PLANT CO., LTD, Chungju-si, KR;

Attorney:

Studebaker Brackett PLLC

Primary Examiner:

Matthew W Van Oudenaren

Int. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 4/62 (2006.01); H01M 50/417 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/457 (2021.01); H01M 50/489 (2021.01);
U.S. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 4/623 (2013.01); H01M 50/417 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/457 (2021.01); H01M 50/489 (2021.01);
Abstract

One aspect of the present invention provides a separator including a porous substrate, and a heat-resistant layer disposed on at least one surface of the porous substrate and including inorganic particles, wherein the ratio (F2/F1) of air permeability (F2, sec/100 mL) in a curved surface with a radius of curvature of 10 mm of the separator to the air permeability (F1, sec/100 mL) in a flat surface of the separator is 1.5 or less, and an electrochemical device including the same.

Find Patent Forward Citations

Kim, Byung. (2026). Separator and electrochemical device including the same (U.S. Patent No. 12683245). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12683245

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

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