Title:
METHOD FOR IMPROVING LIFETIME OF LITHIUM-SULFUR BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/022399
Kind Code:
A2
Abstract:
The present invention provides a method for improving the lifetime of a lithium-sulfur battery, the method comprising an activation step for forming a positive electrode active material-derived compound having a solubility of 1 wt% or more relative to an electrolyte by charging and discharging of the battery. In the activation step, the lithium-sulfur battery can be charged and discharged within a range higher than 2.0 V but lower than 2.4 V. In addition, in the activation step, the lithium-sulfur battery can be charged and discharged 3-10 times.
More Like This:
| JP2014126222 | DRYING DEVICE |
| WO/2021/191281 | IMPROVED CURRENT COLLECTOR FOR A BATTERY |
| JP2023148213 | METHOD FOR PRODUCING CONDUCTIVE PIGMENT PASTE |
Inventors:
PARK INTAE (KR)
YANG DOO KYUNG (KR)
YANG DOO KYUNG (KR)
Application Number:
PCT/KR2018/007533
Publication Date:
January 31, 2019
Filing Date:
July 04, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/04; H01M4/38; H01M10/052; H01M10/0568; H01M10/0569
Foreign References:
| KR20170094637A | 2017-08-21 | |||
| KR20180076878A | 2018-07-06 |
Other References:
HYUNGJUN NOH. ET AL.: "A new insight on capacity fading of lithium sulfur batteries: The effect of Li S phase structure", JOURNAL OF POWER SOURCES, vol. 293, 2015, pages 329 - 335
LAURA C.H. GERBER. ET AL.: "3-Dimensional Growth of Li S in Lithium-Sulfur Batteries Promoted by a Redox Mediator", NANO LETTERS
See also references of EP 3637505A4
LAURA C.H. GERBER. ET AL.: "3-Dimensional Growth of Li S in Lithium-Sulfur Batteries Promoted by a Redox Mediator", NANO LETTERS
See also references of EP 3637505A4
Attorney, Agent or Firm:
KIM, Sung Ho et al. (KR)
Download PDF: