Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/185013
Kind Code:
A1
Abstract:
The present invention provides a secondary battery comprising: a negative electrode comprising a negative electrode active material layer comprising a negative electrode active material; a positive electrode facing the negative electrode and comprising a positive electrode active material layer comprising a positive electrode active material; a separator interposed between the negative electrode and the positive electrode; and an electrolyte, wherein the negative electrode active material includes a silicon-based active material, and the N/P ratio calculated by a specific mathematical formula is 1.92 to 2.60.
Inventors:
KIM YOUNG JAE (KR)
YOO JUNG WOO (KR)
YOO JUNG WOO (KR)
Application Number:
PCT/KR2020/003471
Publication Date:
September 17, 2020
Filing Date:
March 12, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/42; H01M4/02; H01M4/131; H01M4/134; H01M4/38; H01M4/48; H01M4/525; H01M10/052
Foreign References:
| KR20050048509A | 2005-05-24 | |||
| KR20180113376A | 2018-10-16 | |||
| JP2015149267A | 2015-08-20 | |||
| JP2007157332A | 2007-06-21 | |||
| JP2005317309A | 2005-11-10 | |||
| KR20170074030A | 2017-06-29 |
Other References:
See also references of EP 3863105A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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