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

Title: Hollow nanoparticle cathode materials for sodium electrochemical cells and batteries

Abstract

A cathode comprises, in its discharged state, a layer of hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles disposed between two layers of carbon nanotubes, and preferably including a metallic current collector in contact with one of the layers of carbon nanotubes. Individual particles of the hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles comprise a crystalline shell of .gamma.-Fe.sub.2O.sub.3 including cation vacancies within the crystal structure of the shell (i.e., iron vacancies of anywhere between 3% to 90%, and preferably 44 to 77% of available octahedral iron sites). Sodium ions are intercalated within at least some of the cation vacancies within the crystalline shell of the hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles.

Inventors:
; ; ;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1261598
Patent Number(s):
9391319
Application Number:
14/133,137
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
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:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 18
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Shevchenko, Elena, Rajh, Tijana, Johnson, Christopher S., and Koo, Bonil. Hollow nanoparticle cathode materials for sodium electrochemical cells and batteries. United States: N. p., 2016. Web.
Shevchenko, Elena, Rajh, Tijana, Johnson, Christopher S., & Koo, Bonil. Hollow nanoparticle cathode materials for sodium electrochemical cells and batteries. United States.
Shevchenko, Elena, Rajh, Tijana, Johnson, Christopher S., and Koo, Bonil. Tue . "Hollow nanoparticle cathode materials for sodium electrochemical cells and batteries". United States. https://www.osti.gov/servlets/purl/1261598.
@article{osti_1261598,
title = {Hollow nanoparticle cathode materials for sodium electrochemical cells and batteries},
author = {Shevchenko, Elena and Rajh, Tijana and Johnson, Christopher S. and Koo, Bonil},
abstractNote = {A cathode comprises, in its discharged state, a layer of hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles disposed between two layers of carbon nanotubes, and preferably including a metallic current collector in contact with one of the layers of carbon nanotubes. Individual particles of the hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles comprise a crystalline shell of .gamma.-Fe.sub.2O.sub.3 including cation vacancies within the crystal structure of the shell (i.e., iron vacancies of anywhere between 3% to 90%, and preferably 44 to 77% of available octahedral iron sites). Sodium ions are intercalated within at least some of the cation vacancies within the crystalline shell of the hollow .gamma.-Fe.sub.2O.sub.3 nanoparticles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {7}
}

Works referenced in this record:

Intercalation of Sodium Ions into Hollow Iron Oxide Nanoparticles
journal, January 2013


Hollow Iron Oxide Nanoparticles for Application in Lithium Ion Batteries
journal, April 2012


Sodium and sodium-ion energy storage batteries
journal, August 2012


Metal Oxide Hollow Nanostructures for Lithium-ion Batteries
journal, March 2012


One-pot synthesis of monodisperse iron oxide nanoparticles for potential biomedical applications
journal, January 2006


Vacancy Coalescence during Oxidation of Iron Nanoparticles
journal, August 2007


Process for producing cerium oxide nanocrystals
patent, January 2011