Title: Encapsulated sulfur cathodes for rechargeable lithium batteries

Abstract

A method of forming a sulfur-based cathode material includes: 1) providing a sulfur-based nanostructure; 2) coating the nanostructure with an encapsulating material to form a shell surrounding the nanostructure; and 3) removing a portion of the nanostructure through the shell to form a void within the shell, with a remaining portion of the nanostructure disposed within the shell.

Inventors:

Li, Weiyang; Cui, Yi; Seh, Zhi Wei; Zheng, Guangyuan; Yang, Yuan

Issue Date:

Tue Nov 30 00:00:00 EST 2021

Research Org.:

SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1860132

Patent Number(s):

11189836

Application Number:

16/729,037

Assignee:

The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

H01G11/24 - characterised by structural features, e.g. forms, shapes, surface areas, porosities or dimensions, of the materials making up or comprised in the electrodes
H01G11/30 - characterised by their materials

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
H01M10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes
H01M4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M4/1397 - of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M4/5815 - {Sulfides}
H01M4/621 - {Binders}
H01M4/622 - {being polymers}
H01M4/625 - {Carbon or graphite}
H01M4/626 - {Metals}
H01M4/76 - Containers for holding the active material, e.g. tubes, capsules
H01M4/765 - {Tubular type or pencil type electrodes

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
Y02E60/13 - Ultracapacitors, supercapacitors, double-layer capacitors

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DOE Contract Number:  

AC02-76SF00515

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/27/2019

Country of Publication:

United States

Language:

English