Title:
METHOD FOR PREPROCESSING LITHIUM METAL FOR LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/022690
Kind Code:
A1
Abstract:
The present invention relates to a method for preprocessing a lithium metal for a lithium secondary battery, the method comprising: a stripping step for stripping, by discharging a battery, a surface oxide film formed on a lithium metal; and a plating step for replenishing, by charging the battery, a lithium metal on the lithium metal from which the surface oxide film has been removed in the stripping step.
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Inventors:
PARK INTAE (KR)
YANG DOO KYUNG (KR)
AHN JEEHYUN (KR)
YANG DOO KYUNG (KR)
AHN JEEHYUN (KR)
Application Number:
PCT/KR2019/008769
Publication Date:
January 30, 2020
Filing Date:
July 16, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/1395; H01M4/04; H01M10/04; H01M10/052; H01M10/058
Foreign References:
| US20170133662A1 | 2017-05-11 | |||
| US20100181528A1 | 2010-07-22 | |||
| KR20180086474A | 2018-07-31 |
Other References:
GIREAUD, L. ET AL.: "Lithium metal stripping/plating mechanisms studies: A metallurgical approach", ELECTROCHEMISTRY COMMUNICATIONS, vol. 8, 2006, pages 1639 - 1649, XP028041692, DOI: 10.1016/j.elecom.2006.07.037
LIN, DIMGCHANG ET AL.: "Three-dimensional stable lithium metal anode with nanoscale lithium island s embedded in ionically conductive solid matrix", PNAS, vol. 1 14, no. 18, 2017, pages 4613 - 4618, XP055624025, DOI: 10.1073/pnas.1619489114
MARKEVICH, ELENA ET AL.: "Very Stable Lithium Metal Stripping-Plating at a High Rate and High Areal Capacity in Fluoroethylene Carbonate-Based Organic Electrolyte Solutio n", ACS ENERGY LETTERS, vol. 2, 2017, pages 1321 - 1326, XP055681929, DOI: 10.1021/acsenergylett.7b00300
RYOU,M.H. ET AL.: "Mechanical Surface Modification of Lithium Metal: Towards Improved Li Metal Anode Performance by Directed Li Plating", ADV. FUNCT. MATER., vol. 25, 2015, pages 834 - 841, XP001595266, DOI: 10.1002/adfm.201402953
See also references of EP 3745509A4
LIN, DIMGCHANG ET AL.: "Three-dimensional stable lithium metal anode with nanoscale lithium island s embedded in ionically conductive solid matrix", PNAS, vol. 1 14, no. 18, 2017, pages 4613 - 4618, XP055624025, DOI: 10.1073/pnas.1619489114
MARKEVICH, ELENA ET AL.: "Very Stable Lithium Metal Stripping-Plating at a High Rate and High Areal Capacity in Fluoroethylene Carbonate-Based Organic Electrolyte Solutio n", ACS ENERGY LETTERS, vol. 2, 2017, pages 1321 - 1326, XP055681929, DOI: 10.1021/acsenergylett.7b00300
RYOU,M.H. ET AL.: "Mechanical Surface Modification of Lithium Metal: Towards Improved Li Metal Anode Performance by Directed Li Plating", ADV. FUNCT. MATER., vol. 25, 2015, pages 834 - 841, XP001595266, DOI: 10.1002/adfm.201402953
See also references of EP 3745509A4
Attorney, Agent or Firm:
KIM, Sung Ho (KR)
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