CYLINDRICAL BATTERY CELL MANUFACTURING DEVICE COMPRISING SECONDARY CRIMPING MOLD

Title:

CYLINDRICAL BATTERY CELL MANUFACTURING DEVICE COMPRISING SECONDARY CRIMPING MOLD

Document Type and Number:

WIPO Patent Application WO/2018/117457

Kind Code:

A1

Abstract:

The present invention provides a cylindrical battery cell manufacturing device, as a device for forming a crimping portion on a cap assembly coupling part of a cylindrical battery cell, comprising: a primary crimping mold for applying primary pressure such that an end portion of an upper opened part of a cylindrical metal can forms an inclination tilted toward a central axis of the metal can on a vertical cross section in a state in which a cap assembly is coupled to the upper opened part; and a secondary crimping mold for applying secondary pressure to the inclined end portion of the upper opened part such that a flat section parallel to the lower surface of the metal can is formed on a crimping portion, wherein a flat portion corresponding to the flat section is formed on the lower surface of the secondary crimping mold facing the end portion of the upper opened part, such that the flat section is formed on the crimping portion.

Inventors:

KWON TAE HYUN (KR)
LIM HAE JIN (KR)
SIM HYEON SOO (KR)
HEO HA YOUNG (KR)
SUNG JOO HWAN (KR)
KIM HYOUNG KWON (KR)
RYU DUK HYUN (KR)

Application Number:

PCT/KR2017/013669

Publication Date:

June 28, 2018

Filing Date:

November 28, 2017

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M10/04; H01M50/167

Foreign References:

KR19980078956A	1998-11-25
KR20130122051A	2013-11-07
US20100119935A1	2010-05-13
KR19980051246U	1998-10-07
KR19980060840A	1998-10-07

Other References: