Reversible electrochemical reaction of CuO with Li in the LiCuO2 system

被引：14

作者：

Arachi, Yoshinori ^{[1
]}

Setsu, Teruhiko ^{[1
]}

Ide, Tomoyuki ^{[1
]}

Hinoshita, Kentaro ^{[1
]}

Nakata, Yoshiyuki ^{[2
]}

机构：

[1] Kansai Univ, Dept Chem, Suita, Osaka 5648680, Japan

[2] IwakiMeisei Univ, Dept Sci & Engn, Iwaki, Fukushima 9708551, Japan

来源：

SOLID STATE IONICS | 2012年 / 225卷

关键词：

Lithium ion batteries; Cathode material; In-situ XRD measurement; Ab-inito electronic calculation; LITHIUM; TRANSITION; MECHANISM; LI2CUO2; CRYSTAL;

D O I：

10.1016/j.ssi.2011.12.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In-situ XRD patterns of LiCuO2 were obtained during charge and discharge at a range of 1.5 to 4.6 V. Li1-xCuO2 phase was not observed. The electrochemical oxidation of LiCuO2 leads to form small sized-CuO with an evolution of O-2 gas. The ab-initio electronic calculation was used for the estimation of cell potentials using Li in the Li2CuO2-LiCuO2 system. Based on the results of the observation and calculation, we propose the possibility of the reversible reaction of CuO with Li in the LiCuO2 system. We found that the CuO can work as a cathode material in Li-secondary battery. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：611 / 614

页数：4

共 13 条

[1] Changes in electronic structure of Li2-xCuO2 [J].

Arachi, Y. ;

Nakata, Y. ;

Hinoshita, K. ;

Setsu, T. .

JOURNAL OF POWER SOURCES, 2011, 196 (16) :6939-6942

[2] Electrochemical and structural study of Li2CuO2, LiCuO2 and NaCuO2 [J].

Arai, H ;

Okada, S ;

Sakurai, Y ;

Yamaki, J .

SOLID STATE IONICS, 1998, 106 (1-2) :45-53

[3]

Débart A, 2001, J ELECTROCHEM SOC, V148, pA1266, DOI 10.1149/1.1409971

[4] PREPARATION, CRYSTAL-STRUCTURE AND MAGNETIC PROPERTY OF A NEW COMPOUND LICUO2 [J].

IMAI, K ;

KOIKE, M ;

TAKEI, H ;

SAWA, H ;

SHIOMI, D ;

NOZAWA, K ;

KINOSHITA, M .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1992, 61 (05) :1819-1820

[5] Structural and electronic properties of the layered LiNi0.5Mn0.5O2 lithium battery material [J].

Islam, MS ;

Davies, RA ;

Gale, JD .

CHEMISTRY OF MATERIALS, 2003, 15 (22) :4280-4286

[6] A Rietveld-analysis program RIETAN-98 and its applications to zeolites [J].

Izumi, F ;

Ikeda, T .

EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 :198-203

[7] VESTA:: a three-dimensional visualization system for electronic and structural analysis [J].

Momma, Koichi ;

Izumi, Fujio .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2008, 41 :653-658

[8] CUO CATHODE IN LITHIUM CELLS .2. REDUCTION-MECHANISM OF CUO [J].

NOVAK, P .

ELECTROCHIMICA ACTA, 1985, 30 (12) :1687-1692

[9] Evidence of a phase transition in Cu-O chains of LiCuO2 [J].

Owens, FJ .

PHYSICA C, 1999, 313 (1-2) :65-69

[10] Nano-sized transition-metaloxides as negative-electrode materials for lithium-ion batteries [J].

Poizot, P ;

Laruelle, S ;

Grugeon, S ;

Dupont, L ;

Tarascon, JM .

NATURE, 2000, 407 (6803) :496-499

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