SEALING METHOD FOR POUCH TYPE SECONDARY BATTERY, MANUFACTURING METHOD FOR POUCH TYPE SECONDARY BATTERY, SEALING DEVICE FOR POUCH TYPE SECONDARY BATTERY, AND POUCH TYPE SECONDARY BATTERY MANUFACTURED USING SAME

Title:

Document Type and Number:

WIPO Patent Application WO/2023/038294

Kind Code:

A1

Abstract:

The present invention relates to a sealing method for a pouch type secondary battery, comprising: a first sealing step of pressing sealing regions of upper and lower pouches in the vertical direction by means of a sealing device; and a second sealing step of moving from the inside to the outside of the pouch while pressing the sealing regions of the upper and lower pouches by means of the sealing device.

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Inventors:

KIM SOON (KR)
KIM DONG YEON (KR)
KONG JIN HAK (KR)

Application Number:

PCT/KR2022/011243

Publication Date:

March 16, 2023

Filing Date:

July 29, 2022

Export Citation:

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Assignee:

LG ENERGY SOLUTION LTD (KR)

International Classes:

H01M50/105; B29C65/00; B29C65/18; H01M50/124; B29L31/00

Domestic Patent References:

WO2018163636A1

2018-09-13

Foreign References:

CN113044272A	2021-06-29
KR20190048863A	2019-05-09
KR20130140587A	2013-12-24
JP2013196788A	2013-09-30
KR20210120045A	2021-10-06

Attorney, Agent or Firm:

BAE, KIM & LEE IP (KR)

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