Title:
SECONDARY BATTERY SEALING PROCESS, AND SECONDARY BATTERY MANUFACTURING METHOD COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/035225
Kind Code:
A1
Abstract:
The present invention relates to a sealing process for a secondary battery, which seals by thermally fusing a sealing part extending along an edge surface of a battery case, the sealing process comprising: an arrangement operation for arranging the sealing part of the battery case between an anvil and a horn; a first point fixing operation for pressing and fixing a first point of the sealing part through the anvil and the horn; and a first point primary sealing operation for thermally fusing the first point of the sealing part by applying, through the horn, an ultrasonic wave of a set oscillation frequency and a set amplitude, for a set time, to the first point of the sealing part.
Inventors:
CHUNG JOO YOUNG (KR)
HWANG WON PILL (KR)
BAE SANG HO (KR)
JUNG SU TAEK (KR)
HWANG WON PILL (KR)
BAE SANG HO (KR)
JUNG SU TAEK (KR)
Application Number:
PCT/KR2021/010663
Publication Date:
February 17, 2022
Filing Date:
August 11, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/116; B29C65/08; B29L31/00
Foreign References:
| JP2002184373A | 2002-06-28 | |||
| JPH11224652A | 1999-08-17 | |||
| JP2001205452A | 2001-07-31 | |||
| KR20120102935A | 2012-09-19 | |||
| KR20160111702A | 2016-09-27 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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