Title:
SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/209539
Kind Code:
A1
Abstract:
The present invention relates to a secondary battery comprising: a first electrode having a first current collector and a first electrode active material coated on at least one surface of the first current collector; and a second electrode having a second current collector and a second electrode active material coated on at least one surface of the second current collector, wherein a coating start portion and/or end portion of the first electrode active material has an irregular coating portion in which the first electrode active material is irregularly increased and coated, and a coating start portion and/or end portion of the second electrode active material has an inactive coating portion for covering the irregular coating portion.
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Inventors:
KIM NAM WON (KR)
CHOI EUN SUN (KR)
LEE SO RA (KR)
CHOI EUN SUN (KR)
LEE SO RA (KR)
Application Number:
PCT/KR2020/004432
Publication Date:
October 15, 2020
Filing Date:
March 31, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/058; H01M4/13; H01M10/052; H01M10/42
Foreign References:
| KR100591436B1 | 2006-06-22 | |||
| KR20110054024A | 2011-05-24 | |||
| KR20170100377A | 2017-09-04 | |||
| KR20190020618A | 2019-03-04 | |||
| JP2010262773A | 2010-11-18 |
Other References:
See also references of EP 3937288A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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