Synthesis and electrochemistry of new layered (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) electrode materials

Lianqi Zhang, Kazunori Takada, Narumi Ohta, Minoru Osada, Takayoshi Sasaki

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Novel electrode materials with nominal compositions of (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) were synthesized by carbothermal reduction reaction. All the materials were identified to have a layered structure and can be considered as a solid solution related to LiVO2-Li2TiO3 system, in which Li layers was alternately stacked with the layers made of mixture of Li, V, and Ti in a ccp array of oxygen. The redox reaction associated with vanadium ions was not reversible in LiVO2; however, introduction of the redox couple into Li2TiO3 made it much more reversible. A reversible capacity of about 120 mAh g-1 remained after 90 cycles for the samples with x = 0.5 and 0.6, when they were cycled in the voltage range of 1.0-4.8 V.

Original languageEnglish
Pages (from-to)1007-1011
Number of pages5
JournalJournal of Power Sources
Volume174
Issue number2
DOIs
Publication statusPublished - 2007 Dec 6
Externally publishedYes

Fingerprint

Electrochemistry
electrochemistry
electrode materials
Carbothermal reduction
Vanadium
Electrodes
Redox reactions
synthesis
Solid solutions
Ions
Oxygen
vanadium
Electric potential
solid solutions
Chemical analysis
cycles
electric potential
oxygen
ions
Oxidation-Reduction

Keywords

  • (1 - x)LiVO·xLiTiO
  • Layered structure
  • Lithium rechargeable battery
  • Solid solutions

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

Synthesis and electrochemistry of new layered (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) electrode materials. / Zhang, Lianqi; Takada, Kazunori; Ohta, Narumi; Osada, Minoru; Sasaki, Takayoshi.

In: Journal of Power Sources, Vol. 174, No. 2, 06.12.2007, p. 1007-1011.

Research output: Contribution to journalArticle

Zhang, Lianqi ; Takada, Kazunori ; Ohta, Narumi ; Osada, Minoru ; Sasaki, Takayoshi. / Synthesis and electrochemistry of new layered (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) electrode materials. In: Journal of Power Sources. 2007 ; Vol. 174, No. 2. pp. 1007-1011.
@article{4fdebac34211471d8371aaa13896ddfa,
title = "Synthesis and electrochemistry of new layered (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) electrode materials",
abstract = "Novel electrode materials with nominal compositions of (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) were synthesized by carbothermal reduction reaction. All the materials were identified to have a layered structure and can be considered as a solid solution related to LiVO2-Li2TiO3 system, in which Li layers was alternately stacked with the layers made of mixture of Li, V, and Ti in a ccp array of oxygen. The redox reaction associated with vanadium ions was not reversible in LiVO2; however, introduction of the redox couple into Li2TiO3 made it much more reversible. A reversible capacity of about 120 mAh g-1 remained after 90 cycles for the samples with x = 0.5 and 0.6, when they were cycled in the voltage range of 1.0-4.8 V.",
keywords = "(1 - x)LiVO·xLiTiO, Layered structure, Lithium rechargeable battery, Solid solutions",
author = "Lianqi Zhang and Kazunori Takada and Narumi Ohta and Minoru Osada and Takayoshi Sasaki",
year = "2007",
month = "12",
day = "6",
doi = "10.1016/j.jpowsour.2007.06.082",
language = "English",
volume = "174",
pages = "1007--1011",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Synthesis and electrochemistry of new layered (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) electrode materials

AU - Zhang, Lianqi

AU - Takada, Kazunori

AU - Ohta, Narumi

AU - Osada, Minoru

AU - Sasaki, Takayoshi

PY - 2007/12/6

Y1 - 2007/12/6

N2 - Novel electrode materials with nominal compositions of (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) were synthesized by carbothermal reduction reaction. All the materials were identified to have a layered structure and can be considered as a solid solution related to LiVO2-Li2TiO3 system, in which Li layers was alternately stacked with the layers made of mixture of Li, V, and Ti in a ccp array of oxygen. The redox reaction associated with vanadium ions was not reversible in LiVO2; however, introduction of the redox couple into Li2TiO3 made it much more reversible. A reversible capacity of about 120 mAh g-1 remained after 90 cycles for the samples with x = 0.5 and 0.6, when they were cycled in the voltage range of 1.0-4.8 V.

AB - Novel electrode materials with nominal compositions of (1 - x)LiVO2·xLi2TiO3 (0 ≤ x ≤ 0.6) were synthesized by carbothermal reduction reaction. All the materials were identified to have a layered structure and can be considered as a solid solution related to LiVO2-Li2TiO3 system, in which Li layers was alternately stacked with the layers made of mixture of Li, V, and Ti in a ccp array of oxygen. The redox reaction associated with vanadium ions was not reversible in LiVO2; however, introduction of the redox couple into Li2TiO3 made it much more reversible. A reversible capacity of about 120 mAh g-1 remained after 90 cycles for the samples with x = 0.5 and 0.6, when they were cycled in the voltage range of 1.0-4.8 V.

KW - (1 - x)LiVO·xLiTiO

KW - Layered structure

KW - Lithium rechargeable battery

KW - Solid solutions

UR - http://www.scopus.com/inward/record.url?scp=36148944271&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36148944271&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2007.06.082

DO - 10.1016/j.jpowsour.2007.06.082

M3 - Article

VL - 174

SP - 1007

EP - 1011

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

IS - 2

ER -