Title: Silicon-embedded copper nanostructure network for high energy storage

Abstract

Provided herein are nanostructure networks having high energy storage, electrochemically active electrode materials including nanostructure networks having high energy storage, as well as electrodes and batteries including the nanostructure networks having high energy storage. According to various implementations, the nanostructure networks have high energy density as well as long cycle life. In some implementations, the nanostructure networks include a conductive network embedded with electrochemically active material. In some implementations, silicon is used as the electrochemically active material. The conductive network may be a metal network such as a copper nanostructure network. Methods of manufacturing the nanostructure networks and electrodes are provided. In some implementations, metal nanostructures can be synthesized in a solution that contains silicon powder to make a composite network structure that contains both. The metal nanostructure growth can nucleate in solution and on silicon nanostructure surfaces.

Inventors:

Yu, Tianyue

Issue Date:

2018-01-23

Research Org.:

Amprius, Inc., Sunnyvale, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1417847

Patent Number(s):

9876224

Application Number:

15/068,388

Assignee:

Amprius, Inc. (Sunnyvale, CA)

Patent Classifications (CPCs):

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

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

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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 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
H01M2004/021 - {Physical characteristics, e.g. porosity, surface area}
H01M4/134 - Electrodes based on metals, Si or alloys
H01M4/1395 - of electrodes based on metals, Si or alloys
H01M4/366 - {as layered products}
H01M4/38 - of elements or alloys
H01M4/386 - {Silicon or alloys based on silicon}
H01M4/387 - {Tin or alloys based on tin}
H01M4/483 - {for non-aqueous cells
H01M4/622 - {being polymers}
H01M4/624 - {Electric conductive fillers}
H01M4/626 - {Metals}

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:  

EE0005474

Resource Type:

Patent

Resource Relation:

Patent File Date: 2016 Mar 11

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 25 ENERGY STORAGE