Title:
Secondary battery with improved energy density
Document Type and Number:
Japanese Patent JP6292583
Kind Code:
B2
Abstract:
There is provided a secondary battery including an electrode assembly having a stack structure of an anode/a separation film/a cathode, a pouch type exterior member configured of a lower surface in which a receiving part is formed and an upper surface covering the receiving part, a single electrode assembly or a plurality of electrode assemblies being received in the receiving part, and an electrode terminal formed outwardly of the pouch type exterior member, the secondary battery including: a sealing part formed by bonding edges of the pouch type exterior member, wherein a portion of the sealing part formed on a surface of the pouch type exterior member on which the electrode terminal is not formed outwardly of the exterior member is folded downwardly at an angle of 90 degrees. According to exemplary embodiment of the present disclosure, the sealing part of a pouch type secondary battery is folded downwardly at an angle of 90 degrees and is in a fixed state, such that a size of the sealing part may be significantly reduced to improve power output per unit volume and further, a pack size may be reduced.
Inventors:
Park, Jun-kyu
Park, Hyun-Woo
Lee, Kyung-Min
Lee, Yong-ah
Eun, Yae-ho
Park, Hyun-Woo
Lee, Kyung-Min
Lee, Yong-ah
Eun, Yae-ho
Application Number:
JP2015552597A
Publication Date:
March 14, 2018
Filing Date:
March 21, 2014
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
H01M10/04; H01M10/052; H01M10/0587; H01M50/105; H01M50/186; H01M50/55; H01M50/557
Domestic Patent References:
| JP2001256933A | ||||
| JP2007184273A | ||||
| JP2006236857A | ||||
| JP201067423A | ||||
| JP2008293999A | ||||
| JP2009224147A | ||||
| JP2015537338A |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation