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Title: A Study on the Newly Observed Intermidate Structures During the Thermal Decomposition of Nickel-Based Layered Cathode Materials using Time-Resolved XRD

Abstract

Time-resolved XRD analysis has been carried out to investigate structural changes of electrochemically delithiated nickel-based cathodes materials in the presence of electrolyte, when heated from 25 degrees C to 450 degrees C. A new structural change feature, the formation of an intermediate phase of Ni{sub 2}O{sub 3}was observed at the same temperature as the NiO phase formation. It is believed that this intermediate structure plays an important role in the nickel cation reduction and oxygen release process during thermal decomposition of the cathode materials. It is found that the formation of this newly observed Ni{sub 2}O{sub 3} phase is a general feature of the thermal decomposition for the nickel-base cathode materials.

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
914063
Report Number(s):
BNL-78631-2007-JA
Journal ID: ISSN 1388-2481; TRN: US0801512
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Electrochem. Commun.; Journal Volume: 8; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CATHODES; CATIONS; INTERMEDIATE STRUCTURE; NICKEL; OXYGEN; PYROLYSIS; X-RAY DIFFRACTION; NSLS; national synchrotron light source

Citation Formats

Yoon,W., Hanson, J., McBreen, J., and Yang, X. A Study on the Newly Observed Intermidate Structures During the Thermal Decomposition of Nickel-Based Layered Cathode Materials using Time-Resolved XRD. United States: N. p., 2006. Web. doi:10.1016/j.elecom.2006.03.030.
Yoon,W., Hanson, J., McBreen, J., & Yang, X. A Study on the Newly Observed Intermidate Structures During the Thermal Decomposition of Nickel-Based Layered Cathode Materials using Time-Resolved XRD. United States. doi:10.1016/j.elecom.2006.03.030.
Yoon,W., Hanson, J., McBreen, J., and Yang, X. Sun . "A Study on the Newly Observed Intermidate Structures During the Thermal Decomposition of Nickel-Based Layered Cathode Materials using Time-Resolved XRD". United States. doi:10.1016/j.elecom.2006.03.030.
@article{osti_914063,
title = {A Study on the Newly Observed Intermidate Structures During the Thermal Decomposition of Nickel-Based Layered Cathode Materials using Time-Resolved XRD},
author = {Yoon,W. and Hanson, J. and McBreen, J. and Yang, X.},
abstractNote = {Time-resolved XRD analysis has been carried out to investigate structural changes of electrochemically delithiated nickel-based cathodes materials in the presence of electrolyte, when heated from 25 degrees C to 450 degrees C. A new structural change feature, the formation of an intermediate phase of Ni{sub 2}O{sub 3}was observed at the same temperature as the NiO phase formation. It is believed that this intermediate structure plays an important role in the nickel cation reduction and oxygen release process during thermal decomposition of the cathode materials. It is found that the formation of this newly observed Ni{sub 2}O{sub 3} phase is a general feature of the thermal decomposition for the nickel-base cathode materials.},
doi = {10.1016/j.elecom.2006.03.030},
journal = {Electrochem. Commun.},
number = 5,
volume = 8,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}