Unexpected 5 V behavior of Zn-doped Mn spinel cathode material

被引：25

作者：

Ein-Eli, Y ^{[1
]}

Wen, W

Mukerjee, S

机构：

[1] Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel

[2] Northeastern Univ, Dept Chem & Biol Chem, Boston, MA 02115 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 03期

关键词：

D O I：

10.1149/1.1857672

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Zn-doped Mn spinel was investigated for its unique 5 V reversible Li intercalation. Only at a certain Zn doping, LiZn0.25Mn1.75O4, lithium ions can be extracted at 5 V, while at high Zn doping of LiZn0.5Mn1.5O4 no reversible capacity was observed. Electrochemical extraction of lithium ions during charge at 5 V is partially reversible. The two Zn doped compositions (x = 0.25 and 0.5 in LiZnxMn2-xO4) have a single phase cubic spinel structure, possessing a primitive cubic atomic arrangement, in contrast to the face centered cubic LiMn2O4 spinel. All materials synthesized have a tetradecahedra grain structure, bonded via the hexagon facets. (C) 2005 The Electrochemical Society.

引用

页码：A141 / A144

页数：4

共 19 条

[1]

BATES JB, 1995, J ELECTROCHEM SOC, V142, pL149, DOI 10.1149/1.2048729

[2]

COTTON FA, 1988, ADV INORG CHEM RAD, P597

[3] LiMn2-xCuxO4 spinels (0.1≤x≤0.5):: A new class of 5 V cathode materials for Li batteries -: I.: Electrochemical, structural, and spectroscopic studies [J].

Ein-Eli, Y ;

Howard, WF ;

Lu, SH ;

Mukerjee, S ;

McBreen, J ;

Vaughey, JT ;

Thackeray, MM .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (04) :1238-1244

[4] LiCuxIICuyIIIMn[2-(x+y])III,IVO4: 5V cathode materials [J].

EinEli, Y ;

Howard, WF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (08) :L205-L207

[5] Preparation and electrochemical properties of high-voltage cathode materials, LiMyNi0.5-yMn1.5O4 (M = Fe, Cu, Al, Mg; y=0.0-0.4) [J].

Fey, GTK ;

Lu, CZ ;

Kumar, TP .

JOURNAL OF POWER SOURCES, 2003, 115 (02) :332-345

[6] Phase transitions in Li1-δNi0.5Mn1.5O4 during cycling at 5 v [J].

Kim, JH ;

Yoon, CS ;

Myung, ST ;

Prakash, J ;

Sun, YK .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (07) :A216-A220

[7] Cation ordering and electrochemical properties of the cathode materials LiZnxMn2-xO4, 0 < x ≤ 0.5:: A 6Li magic-angle spinning NMR spectroscopy and diffraction study [J].

Lee, YJ ;

Park, SH ;

Eng, C ;

Parise, JB ;

Grey, CP .

CHEMISTRY OF MATERIALS, 2002, 14 (01) :194-205

[8]

LEE YS, 2000, ITE LETT BATTERIES N, V1, P883

[9] In situ synchrotron X-ray studies on copper-nickel 5 V Mn oxide spinel cathodes for Li-ion batteries [J].

Mukerjee, S ;

Yang, XQ ;

Sun, X ;

Lee, SJ ;

McBreen, J ;

Ein-Eli, Y .

ELECTROCHIMICA ACTA, 2004, 49 (20) :3373-3382

[10] ELECTROCHEMISTRY OF MANGANESE-DIOXIDE IN LITHIUM NONAQUEOUS CELL .3. X-RAY DIFFRACTIONAL STUDY ON THE REDUCTION OF SPINEL-RELATED MANGANESE-DIOXIDE [J].

OHZUKU, T ;

KITAGAWA, M ;

HIRAI, T .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (03) :769-775

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