High-pressure synthesis and electrochemical behavior of layered (1-a)LiNi1-yAlyO2 center dot aLi[Li1/3Ni2/3]O-2 oxides

E Shinova; E Zhecheva; R Stoyanova; GD Bromiley; R Alcantara; JL Tirado

doi:10.1016/j.jssc.2005.06.006

High-pressure synthesis and electrochemical behavior of layered (1-a)LiNi1-yAlyO2 center dot aLi[Li1/3Ni2/3]O-2 oxides

E Shinova, E Zhecheva^*, R Stoyanova, GD Bromiley, R Alcantara, JL Tirado

^*Corresponding author for this work

School of Geosciences

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

Abstract / Description of output

Layered (1 - a)LiNi(1-y)Al(y)O(2)center dot aLi[Li1/3Ni2/3]O-2 oxides, 0 1.2. While pure NiO2-layers are able to incorporate under highpressure up to 1/3Li, the appearance of Al in the NiO2-layers hinders Li+ dissolution (Li <(1-y)/3). In addition, with increasing Al content there is a strong cationic mixing between the layers. High-frequency EPR of Ni3+ indicates that the structural interaction of LiAlyNi1-yO2 with Li[Li1/3Ni2/3]O-2 proceeds via the formation of domains comprising different amount of Ni3+ ions. The use of Li1.08Al0.09Ni0.83O2 as a cathode material in a lithium ion cells displays a first irreversible Li extraction at 4.8V, after which a reversible lithium insertion/extraction between 3.0 and 4.5V is observed on further cycling. (c) 2005 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	2692-2700
Number of pages	9
Journal	Journal of Solid State Chemistry
Volume	178
Issue number	9
DOIs	https://doi.org/10.1016/j.jssc.2005.06.006
Publication status	Published - Sept 2005

Keywords / Materials (for Non-textual outputs)

cathode materials
lithium nickelates
structural characterization
EPR spectroscopy
ION SHUTTLECOCK BATTERIES
CATHODE MATERIALS
LITHIUM BATTERIES
SOLID-SOLUTIONS
LIAL1/4NI3/4O2 R(3)OVER-BAR-M
ELECTRODE MATERIALS
CRYSTAL-STRUCTURE
LINIO2
PERFORMANCE
CELLS

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10.1016/j.jssc.2005.06.006

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@article{1c61b941150a4240b24071e65f5a9a0c,

title = "High-pressure synthesis and electrochemical behavior of layered (1-a)LiNi1-yAlyO2 center dot aLi[Li1/3Ni2/3]O-2 oxides",

abstract = "Layered (1 - a)LiNi(1-y)Al(y)O(2)center dot aLi[Li1/3Ni2/3]O-2 oxides, 0 1.2. While pure NiO2-layers are able to incorporate under highpressure up to 1/3Li, the appearance of Al in the NiO2-layers hinders Li+ dissolution (Li <(1-y)/3). In addition, with increasing Al content there is a strong cationic mixing between the layers. High-frequency EPR of Ni3+ indicates that the structural interaction of LiAlyNi1-yO2 with Li[Li1/3Ni2/3]O-2 proceeds via the formation of domains comprising different amount of Ni3+ ions. The use of Li1.08Al0.09Ni0.83O2 as a cathode material in a lithium ion cells displays a first irreversible Li extraction at 4.8V, after which a reversible lithium insertion/extraction between 3.0 and 4.5V is observed on further cycling. (c) 2005 Elsevier Inc. All rights reserved.",

keywords = "cathode materials, lithium nickelates, structural characterization, EPR spectroscopy, ION SHUTTLECOCK BATTERIES, CATHODE MATERIALS, LITHIUM BATTERIES, SOLID-SOLUTIONS, LIAL1/4NI3/4O2 R(3)OVER-BAR-M, ELECTRODE MATERIALS, CRYSTAL-STRUCTURE, LINIO2, PERFORMANCE, CELLS",

author = "E Shinova and E Zhecheva and R Stoyanova and GD Bromiley and R Alcantara and JL Tirado",

year = "2005",

month = sep,

doi = "10.1016/j.jssc.2005.06.006",

language = "English",

volume = "178",

pages = "2692--2700",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press",

number = "9",

}

TY - JOUR

T1 - High-pressure synthesis and electrochemical behavior of layered (1-a)LiNi1-yAlyO2 center dot aLi[Li1/3Ni2/3]O-2 oxides

AU - Shinova, E

AU - Zhecheva, E

AU - Stoyanova, R

AU - Bromiley, GD

AU - Alcantara, R

AU - Tirado, JL

PY - 2005/9

Y1 - 2005/9

N2 - Layered (1 - a)LiNi(1-y)Al(y)O(2)center dot aLi[Li1/3Ni2/3]O-2 oxides, 0 1.2. While pure NiO2-layers are able to incorporate under highpressure up to 1/3Li, the appearance of Al in the NiO2-layers hinders Li+ dissolution (Li <(1-y)/3). In addition, with increasing Al content there is a strong cationic mixing between the layers. High-frequency EPR of Ni3+ indicates that the structural interaction of LiAlyNi1-yO2 with Li[Li1/3Ni2/3]O-2 proceeds via the formation of domains comprising different amount of Ni3+ ions. The use of Li1.08Al0.09Ni0.83O2 as a cathode material in a lithium ion cells displays a first irreversible Li extraction at 4.8V, after which a reversible lithium insertion/extraction between 3.0 and 4.5V is observed on further cycling. (c) 2005 Elsevier Inc. All rights reserved.

AB - Layered (1 - a)LiNi(1-y)Al(y)O(2)center dot aLi[Li1/3Ni2/3]O-2 oxides, 0 1.2. While pure NiO2-layers are able to incorporate under highpressure up to 1/3Li, the appearance of Al in the NiO2-layers hinders Li+ dissolution (Li <(1-y)/3). In addition, with increasing Al content there is a strong cationic mixing between the layers. High-frequency EPR of Ni3+ indicates that the structural interaction of LiAlyNi1-yO2 with Li[Li1/3Ni2/3]O-2 proceeds via the formation of domains comprising different amount of Ni3+ ions. The use of Li1.08Al0.09Ni0.83O2 as a cathode material in a lithium ion cells displays a first irreversible Li extraction at 4.8V, after which a reversible lithium insertion/extraction between 3.0 and 4.5V is observed on further cycling. (c) 2005 Elsevier Inc. All rights reserved.

KW - cathode materials

KW - lithium nickelates

KW - structural characterization

KW - EPR spectroscopy

KW - ION SHUTTLECOCK BATTERIES

KW - CATHODE MATERIALS

KW - LITHIUM BATTERIES

KW - SOLID-SOLUTIONS

KW - LIAL1/4NI3/4O2 R(3)OVER-BAR-M

KW - ELECTRODE MATERIALS

KW - CRYSTAL-STRUCTURE

KW - LINIO2

KW - PERFORMANCE

KW - CELLS

U2 - 10.1016/j.jssc.2005.06.006

DO - 10.1016/j.jssc.2005.06.006

M3 - Article

SN - 0022-4596

VL - 178

SP - 2692

EP - 2700

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 9

ER -

High-pressure synthesis and electrochemical behavior of layered (1-a)LiNi1-yAlyO2 center dot aLi[Li1/3Ni2/3]O-2 oxides

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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