A study on the newly observed intermediate structures during the thermal decomposition of nickel-based layered cathode materials using time-resolved XRD

Won Sub Yoon; Jonathan Hanson; James McBreen; Xiao Qing Yang

doi:10.1016/j.elecom.2006.03.030

A study on the newly observed intermediate structures during the thermal decomposition of nickel-based layered cathode materials using time-resolved XRD

Won Sub Yoon
, Jonathan Hanson
, James McBreen
, Xiao Qing Yang

Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

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 °C to 450 °C. A new structural change feature, the formation of an intermediate phase of Ni₂O₃ 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 Ni₂O₃ phase is a general feature of the thermal decomposition for the nickel-base cathode materials.

Original language	English
Pages (from-to)	859-862
Number of pages	4
Journal	Electrochemistry Communications
Volume	8
Issue number	5
DOIs	https://doi.org/10.1016/j.elecom.2006.03.030
State	Published - May 2006
Externally published	Yes

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SDG 7 Affordable and Clean Energy

Keywords

LiNiCoAlO
LiNiO
Lithium rechargeable batteries
Thermal stability
Time-resolved X-ray diffraction

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10.1016/j.elecom.2006.03.030

Cite this

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title = "A study on the newly observed intermediate 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 °C to 450 °C. A new structural change feature, the formation of an intermediate phase of Ni2O3 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 Ni2O3 phase is a general feature of the thermal decomposition for the nickel-base cathode materials.",

keywords = "LiNiCoAlO, LiNiO, Lithium rechargeable batteries, Thermal stability, Time-resolved X-ray diffraction",

author = "Yoon, \{Won Sub\} and Jonathan Hanson and James McBreen and Yang, \{Xiao Qing\}",

year = "2006",

month = may,

doi = "10.1016/j.elecom.2006.03.030",

language = "English",

volume = "8",

pages = "859--862",

journal = "Electrochemistry Communications",

issn = "1388-2481",

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T1 - A study on the newly observed intermediate structures during the thermal decomposition of nickel-based layered cathode materials using time-resolved XRD

AU - Yoon, Won Sub

AU - Hanson, Jonathan

AU - McBreen, James

AU - Yang, Xiao Qing

PY - 2006/5

Y1 - 2006/5

N2 - 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 °C to 450 °C. A new structural change feature, the formation of an intermediate phase of Ni2O3 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 Ni2O3 phase is a general feature of the thermal decomposition for the nickel-base cathode materials.

AB - 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 °C to 450 °C. A new structural change feature, the formation of an intermediate phase of Ni2O3 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 Ni2O3 phase is a general feature of the thermal decomposition for the nickel-base cathode materials.

KW - LiNiCoAlO

KW - LiNiO

KW - Lithium rechargeable batteries

KW - Thermal stability

KW - Time-resolved X-ray diffraction

UR - https://www.scopus.com/pages/publications/33646200881

U2 - 10.1016/j.elecom.2006.03.030

DO - 10.1016/j.elecom.2006.03.030

M3 - Article

AN - SCOPUS:33646200881

SN - 1388-2481

VL - 8

SP - 859

EP - 862

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 5

ER -

A study on the newly observed intermediate structures during the thermal decomposition of nickel-based layered cathode materials using time-resolved XRD

Abstract

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Keywords

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