Title:
STACK-FOLDING-TYPE ELECTRODE ASSEMBLY HAVING IMPROVED SAFETY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2016/163654
Kind Code:
A1
Abstract:
The present invention relates to a stack-folding-type electrode assembly having improved safety, and a lithium secondary battery comprising the same, wherein a separator for folding and a separator for a unit cell comprise a porous coating layer which includes a mixture of inorganic particles and a binder polymer, and the porous coating layer of one separator from among the separator for folding and the separator for a unit cell uses an organic binder polymer as the binder polymer, and the porous coating layer of the other separator uses a water-based binder polymer as the polymer binder, thereby reducing the volume of the electrode assembly and securing an environment-friendly effect along with safety at the time of nail penetration.
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Inventors:
KIM YOUNG-DEOK (KR)
Application Number:
PCT/KR2016/002565
Publication Date:
October 13, 2016
Filing Date:
March 15, 2016
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0583; H01M4/62; H01M10/052; H01M50/443
Foreign References:
| KR101278739B1 | 2013-06-25 | |||
| KR20120111652A | 2012-10-10 | |||
| KR101367754B1 | 2014-02-27 | |||
| KR20060063751A | 2006-06-12 | |||
| KR20140000911A | 2014-01-06 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
특허법인 필앤온지 (KR)
특허법인 필앤온지 (KR)
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