SECONDARY BATTERY - SAMSUNG SDI CO LTD

Title:

SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2019/074198

Kind Code:

A1

Abstract:

An embodiment of the present invention relates to a secondary battery, wherein a technical problem to be solved is to provide a secondary battery which has low resistance and can output high power without loss of capacity, and can prevent deformation or cracking of an electrode assembly. To this end, the present invention provides a secondary battery comprising: a cylindrical can; an electrode assembly which is received in the cylindrical can and includes multiple first tabs extending in a first direction which is a longitudinal direction of the cylindrical can, and multiple second tabs extending in a second direction opposite to the first direction; a cap assembly for sealing the cylindrical can; a first current collecting structure which electrically connects the multiple first tabs to the cap assembly while being insulated from the cylindrical can; and a second current collecting structure for electrically connecting the multiple second tabs to the cylindrical can.

Inventors:

JEONG HYUN KI (KR)
LEE HO JAE (KR)
PARK JUNG HYUN (KR)
PARK JUNE HYOUNG (KR)
OYAGI NOBUYUKI (KR)
LEE SANG MI (KR)
LEE WON IK (KR)
CHA YE JI (KR)

Application Number:

PCT/KR2018/008711

Publication Date:

April 18, 2019

Filing Date:

July 31, 2018

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)

International Classes:

H01M4/70; H01M10/04; H01M10/0587; H01M50/107; H01M50/179; H01M50/529; H01M50/536; B23K101/38; H01M50/534

Foreign References:

KR20100096720A	2010-09-02
KR20170024338A	2017-03-07
KR20120062254A	2012-06-14
JP2009289732A	2009-12-10
US20080026291A1	2008-01-31

Other References: