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 = {Tue Jul 12 00:00:00 EDT 2016},
month = {Tue Jul 12 00:00:00 EDT 2016}
}
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