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

[11] Solid-state redox potentials for Li[Me1/2Mn3/2]O4 (Me: 3d-transition metal) having spinel-framework structures:: a series of 5 volt materials for advanced lithium-ion batteries [J].

Ohzuku, T ;

Takeda, S ;

Iwanaga, M .

JOURNAL OF POWER SOURCES, 1999, 81 :90-94

[12]

SALLE ALG, 2000, NATO ASI SER 3, V85, P241

[13] Origin of the capacity of spinel LiMn2-yLiyO4±δ (0 ≤ y ≤ 0.15) in the 5 V region [J].

Shin, YJ ;

Manthiram, A .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (12) :A249-A251

[14] POSITIVE ELECTRODE MATERIALS WITH HIGH OPERATING VOLTAGE FOR LITHIUM BATTERIES - LICRYMN2-YO4 (0-LESS-THAN-OR-EQUAL-TO-Y-LESS-THAN-OR-EQUAL-TO-1) [J].

SIGALA, C ;

GUYOMARD, D ;

VERBAERE, A ;

PIFFARD, Y ;

TOURNOUX, M .

SOLID STATE IONICS, 1995, 81 (3-4) :167-170

[15] SYNTHESIS CONDITIONS AND OXYGEN STOICHIOMETRY EFFECTS ON LI INSERTION INTO THE SPINEL LIMN2O4 [J].

TARASCON, JM ;

MCKINNON, WR ;

COOWAR, F ;

BOWMER, TN ;

AMATUCCI, G ;

GUYOMARD, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (06) :1421-1431

[16]

Thackeray MM, 1998, ELECTROCHEM SOLID ST, V1, P7, DOI 10.1149/1.1390617

[17]

THACKERAY MM, 1997, J ELECTROCHEM SOC, V144, P100

[18] A 5 V region electrochemical behavior of nonstoichiometric Li1+xMn2-xO4±z spinels [J].

Wang, XQ ;

Iltchev, N ;

Nakamura, H ;

Noguchi, H ;

Yoshio, M .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (06) :A99-A101

[19] Synthesis and electrochemistry of LiNixMn2-xO4 [J].

Zhong, QM ;

Bonakdarpour, A ;

Zhang, MJ ;

Gao, Y ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (01) :205-213

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