Title:
STEPPED ELECTRODE GROUP STACK
Document Type and Number:
WIPO Patent Application WO/2014/126382
Kind Code:
A1
Abstract:
The present invention relates to an electrode group stack having a stacking structure for electrode groups in which electrode groups are stacked in the height-wise direction with respect to a flat surface so that a cathode and an anode face each other with a separator therebetween, each electrode group comprising a cathode, an anode and a separator therebetween, wherein the stacking structure of the electrode groups is such that the boundaries thereof create steps, and the capacity ratio (N/P ratio or counter ratio) for opposing areas of cathode and anode from the electrode group boundaries is equal to or greater than the capacity ratio (N/P ratio or counter ratio) for the opposing areas of the cathode and anode of the electrode group having a relatively large oppositional area.
Inventors:
KWON SUNGJIN (KR)
KIM DONG-MYUNG (KR)
KIM KIWOONG (KR)
KIM DONG-MYUNG (KR)
KIM KIWOONG (KR)
Application Number:
PCT/KR2014/001147
Publication Date:
August 21, 2014
Filing Date:
February 12, 2014
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/04; H01M10/0585
Foreign References:
| JP2004111219A | 2004-04-08 | |||
| KR20130014252A | 2013-02-07 | |||
| KR100274884B1 | 2000-12-15 | |||
| JP2013012320A | 2013-01-17 | |||
| US20110183183A1 | 2011-07-28 |
Other References:
None
See also references of EP 2924795A4
See also references of EP 2924795A4
Attorney, Agent or Firm:
SOHN, CHANG KYU (KR)
손창규 (KR)
손창규 (KR)
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