Title:
電流制限機能付き電極リードを含むパウチ型二次電池
Document Type and Number:
Japanese Patent JP6498783
Kind Code:
B2
Abstract:
Provided is a pouch-type secondary battery comprising an electrode assembly equipped with an electrode tab, an electrode lead connected to the electrode tab, a pouch housing accommodating and sealing the electrode assembly such that the electrode lead is exposed partly and equipped with a sealing zone at the edge thereof, a first sealant interposed between the top surface of the electrode lead and the inner surface of the pouch housing and a second sealant interposed between the lower surface of the electrode lead and the inner surface of the pouch housing, wherein the electrode lead includes a joint portion joined to the electrode tab, a terminal portion exposed to the outside of the pouch housing and a fuse portion between the joint portion and the terminal portion, the fuse portion includes a separating groove separated from the sealing zone toward the joint portion and including at least a horizontal slit which is in parallel to the width direction of the electrode lead and a breaking portion disposed more inwardly than the sealing zone and connected to the separating groove for separating the terminal portion from the joint portion and the shapes of the first sealant and the second sealant are different from each other such that, when the pressure inside the secondary battery is increased, the stress applied to the pouch housing is in opposite directions at the top surface and the lower surface of the electrode lead so that the breaking portion breaks.
Inventors:
Choice
Kim Jin Young
John Guis
John Won Suk
Choi Sun Dong
Fan won pill
Kim Jin Young
John Guis
John Won Suk
Choi Sun Dong
Fan won pill
Application Number:
JP2017552906A
Publication Date:
April 10, 2019
Filing Date:
May 04, 2016
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
H01M50/178; H01M50/186; H01M50/533; H01M50/548; H01M50/557; H01M50/193
Domestic Patent References:
| JP2009110812A | ||||
| JP10294097A | ||||
| JP2000067846A | ||||
| JP2004327047A | ||||
| JP2005044523A | ||||
| JP2008177084A | ||||
| JP2018506159A |
Foreign References:
| EP0961331A1 |
Attorney, Agent or Firm:
Shinji Aida
Zheng Yuanji
Kyoko Aida
Zheng Yuanji
Kyoko Aida