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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 12476325 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Aug. 29, 2022

Cell assembly unit and battery pack including the same

Applicant:

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

Inventors:

Ha Neul Choi, Daejeon, KR;

Min Song Kang, Daejeon, KR;

Jeong Woon Ko, Daejeon, KR;

Bon Seok Ku, Daejeon, KR;

Byeong Jun Pak, Daejeon, KR;

Ja Sung Yun, Daejeon, KR;

Jun Hee Jung, Daejeon, KR;

Hyun Jae Jung, Daejeon, KR;

Sei Hoon Cho, Daejeon, KR;

Jin Su Han, Daejeon, KR;

Jae Il Hwang, Daejeon, KR;

Assignee:

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

Attorney:

The Webb Law Firm

Primary Examiner:

Eugenia Wang

Int. Cl.
CPC ...
H01M 50/30 (2021.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/647 (2014.01); H01M 10/653 (2014.01); H01M 10/658 (2014.01); H01M 50/211 (2021.01); H01M 50/227 (2021.01); H01M 50/249 (2021.01); H01M 50/264 (2021.01); H01M 50/367 (2021.01); H01M 50/383 (2021.01); H01M 50/502 (2021.01); H01M 50/503 (2021.01); H01M 50/505 (2021.01); H01M 50/517 (2021.01); H01M 50/548 (2021.01); H01M 50/557 (2021.01);
U.S. Cl.
CPC ...
H01M 50/394 (2021.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/647 (2015.04); H01M 10/653 (2015.04); H01M 10/658 (2015.04); H01M 50/211 (2021.01); H01M 50/227 (2021.01); H01M 50/249 (2021.01); H01M 50/264 (2021.01); H01M 50/367 (2021.01); H01M 50/383 (2021.01); H01M 50/502 (2021.01); H01M 50/503 (2021.01); H01M 50/505 (2021.01); H01M 50/517 (2021.01); H01M 50/548 (2021.01); H01M 50/557 (2021.01); H01M 2200/00 (2013.01); H01M 2220/20 (2013.01);
Abstract

A battery pack includes a cell assembly unit including a plurality of battery cells and a bus bar configured to electrically connect the plurality of battery cells, a frame unit accommodating the cell assembly unit, and a bracket unit fixing the cell assembly unit to the frame unit. The bracket unit and the frame unit form a flow path through which a gas is discharged. A reverse flow prevention member is disposed between the bus bar and the bracket unit. The reverse flow prevention member includes a plurality of gas permeation holes, each of which extends from one end facing the bus bar and leads to another end facing the flow path.

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