DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Structurally controlled deposition of silicon onto nanowires

Abstract

Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Amprius, Inc., Fremont, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735014
Patent Number(s):
10707484
Application Number:
15/887,809
Assignee:
Amprius, Inc. (Fremont, CA)
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
DOE Contract Number:  
EE0005474
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/02/2018
Country of Publication:
United States
Language:
English

Citation Formats

Wang, Weijie, Liu, Zuqin, Han, Song, Bornstein, Jonathan, and Stefan, Constantin Ionel. Structurally controlled deposition of silicon onto nanowires. United States: N. p., 2020. Web.
Wang, Weijie, Liu, Zuqin, Han, Song, Bornstein, Jonathan, & Stefan, Constantin Ionel. Structurally controlled deposition of silicon onto nanowires. United States.
Wang, Weijie, Liu, Zuqin, Han, Song, Bornstein, Jonathan, and Stefan, Constantin Ionel. Tue . "Structurally controlled deposition of silicon onto nanowires". United States. https://www.osti.gov/servlets/purl/1735014.
@article{osti_1735014,
title = {Structurally controlled deposition of silicon onto nanowires},
author = {Wang, Weijie and Liu, Zuqin and Han, Song and Bornstein, Jonathan and Stefan, Constantin Ionel},
abstractNote = {Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record:

Template electrode structures for depositing active materials
patent, September 2012


Method for making carbon nanotube yarn
patent, April 2010


Ambient environment nanowire sensor
patent, October 2008


Anode of a lithium battery and method for fabricating the same
patent, September 2011


Lithium ion battery comprising nanomaterials
patent, March 2010


Solid electrolyte battery
patent, July 2002


Rechargeable lithium cell having an anode comprised of carbon nanotubes
patent, March 2007


High capacity electrodes
patent, April 2013


Meso-and nanotubes
patent, December 2003


Negative active material for rechargeable lithium battery and method of preparing same
patent, March 2002


Nanostructure-based high energy capacity material
patent, February 2003


Template electrode structures for depositing active materials
patent, March 2019


Preparation of carbide nanorods
patent, December 1999


Protective coatings for negative electrodes
patent, February 2000


Electrodes including support filament with collar stop
patent, July 2013


Method for porifying fine particulate silica
patent, January 1999


Electrochemical cell
patent, December 1982


Electrode including nanostructures for rechargeable cells
patent, October 2018


High capacity electrodes
patent, February 2014


Single-walled carbon nanotube-ceramic composites and methods of use
patent, October 2010


Nanowire battery methods and arrangements
patent, October 2010


Nanostructure-based high energy capacity material
patent, January 2002


Template electrode structures for depositing active materials
patent, October 2013


Non-aqueous electrolyte secondary battery
patent, July 2000


Power storage device and method for manufacturing the same
patent, April 2014


Method for making a conductive film of carbon nanotubes
patent, June 2012


Electrochemical device and method of fabricating the same
patent, August 2012


Structurally controlled deposition of silicon onto nanowires
patent, March 2018


Lithium secondary battery with wound electrodes
patent, February 2013


Autogenic pressure reactions for battery materials manufacture
patent, October 2013


All-solid electrodes with mixed conductor matrix
patent, March 1984


Template electrode structures for depositing active materials
patent, October 2015


Structural micro-porous carbon anode for rechargeable lithium-ion batteries
patent, June 1995


Electric storage device
patent, September 2012


Nanowire battery methods and arrangements
patent, November 2014


Carbon nanotubule enclosing a foreign material
patent, October 1995


Structured silicon anode
patent, July 2008


Partial boiling in mini and micro-channels
patent, August 2012


Secondary battery using lithium
patent, December 1997


Multidimensional electrochemically active structures for battery electrodes
patent, October 2015


Template electrode structures with enhanced adhesion characteristics
patent, October 2018


Capacitors comprising organized assemblies of carbon and non-carbon compounds
patent, September 2010