Pouch Type Secondary Battery

Abstract: A pouch-type secondary battery according to the present invention comprises: an electrode assembly; a pouch-type case comprising an accommodation part for accommodating the electrode assembly and a sealing part for sealing the accommodation part; an electrode lead connected to the electrode assembly and protruding outside of the pouch-type case via the sealing part; a lead film disposed between the electrode lead and the pouch-type case; and a gas-inducing part disposed between the electrode lead and the lead film. The gas-inducing part comprises a first layer in contact with the lead film. The first layer comprises a polymeric film having a storage modulus ranging from 30 MPa to 650 MPa measured at 100°C.

Patent Information

Application #

Filing Date

21 May 2025

Publication Number

24/2025

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION, LTD.

Tower 1, 108, Yeoui-daero Yeongdeungpo-gu Seoul 07335

Inventors

1. PARK, Eun Suk

LG Energy Solution Research Park, 188, Munji-ro Yuseong-gu Daejeon 34122

2. KIM, Sang Hun

LG Energy Solution Research Park, 188, Munji-ro Yuseong-gu Daejeon 34122

3. YU, Hyung Kyun

LG Energy Solution Research Park, 188, Munji-ro Yuseong-gu Daejeon 34122

4. LEE, Jae Ho

LG Energy Solution Research Park, 188, Munji-ro Yuseong-gu Daejeon 34122

Specification

Documents

Application Documents

#	Name	Date
1	202517049074-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [21-05-2025(online)].pdf	2025-05-21
2	202517049074-STATEMENT OF UNDERTAKING (FORM 3) [21-05-2025(online)].pdf	2025-05-21
3	202517049074-REQUEST FOR EXAMINATION (FORM-18) [21-05-2025(online)].pdf	2025-05-21
4	202517049074-PROOF OF RIGHT [21-05-2025(online)].pdf	2025-05-21
5	202517049074-PRIORITY DOCUMENTS [21-05-2025(online)].pdf	2025-05-21
6	202517049074-POWER OF AUTHORITY [21-05-2025(online)].pdf	2025-05-21
7	202517049074-FORM 18 [21-05-2025(online)].pdf	2025-05-21
8	202517049074-FORM 1 [21-05-2025(online)].pdf	2025-05-21
9	202517049074-DRAWINGS [21-05-2025(online)].pdf	2025-05-21
10	202517049074-DECLARATION OF INVENTORSHIP (FORM 5) [21-05-2025(online)].pdf	2025-05-21
11	202517049074-COMPLETE SPECIFICATION [21-05-2025(online)].pdf	2025-05-21
12	202517049074-MARKED COPIES OF AMENDEMENTS [04-06-2025(online)].pdf	2025-06-04
13	202517049074-FORM 13 [04-06-2025(online)].pdf	2025-06-04
14	202517049074-AMMENDED DOCUMENTS [04-06-2025(online)].pdf	2025-06-04
15	202517049074-FORM 3 [23-10-2025(online)].pdf	2025-10-23