Title: Protective coatings for lithium metal electrodes

Abstract

Double-layered protective coatings for lithium metal electrodes, as well as methods of formation relating thereto, are provided. The negative electrode assembly includes an electroactive material layer including lithium metal and a protective dual-layered coating. The protective dual-layered coating includes a polymeric layer disposed on a surface of the electroactive material layer and an inorganic layer disposed on an exposed surface of the polymeric layer. The polymeric layer has an elastic modulus of greater than or equal to about 0.01 GPa to less than or equal to about 410 GPa. The inorganic layer has an elastic modulus of greater than or equal to about 10 GPa to less than or equal to about 1000 GPa.

Inventors:

Xiao, Xingcheng; Li, Binsong; Gao, Huajian; Guo, Kai

Issue Date:

2022-08-30

Research Org.:

GM Global Technology Operations LLC, Detroit, MI (United States); Brown Univ., Providence, RI (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1925042

Patent Number(s):

11430994

Application Number:

16/234,873

Assignee:

GM Global Technology Operations LLC (Detroit, MI); Brown University (Providence, RI)

Patent Classifications (CPCs):

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/052 - Li-accumulators
H01M10/4235 - {Safety or regulating additives or arrangements in electrodes, separators or electrolyte
H01M2004/027 - {Negative electrodes}
H01M4/0402 - {Methods of deposition of the material}
H01M4/134 - Electrodes based on metals, Si or alloys
H01M4/1395 - of electrodes based on metals, Si or alloys
H01M4/366 - {as layered products}
H01M4/382 - {Lithium
H01M4/628 - {Inhibitors, e.g. gassing inhibitors, corrosion inhibitors}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/10 - Energy storage

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DOE Contract Number:  

EE0007787

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/28/2018

Country of Publication:

United States

Language:

English