A 7Li NMR study of lithium insertion into lithium manganese oxide spinel

被引：21

作者：

Tucker, MC ^{[1
]}

Reimer, JA

Cairns, EJ

机构：

[1] Univ Calif Berkeley, Ernest Orlando Lawerence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2000年 / 3卷 / 10期

关键词：

D O I：

10.1149/1.1391180

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Li-7 magic angle spinning nuclear magnetic resonance was used to observe coexisting cubic and tetragonal phases in Li1+xMn2O4. Cubic phase peaks are observed at 500-580 ppm vs. 1 M LiCl(aq); tetragonal phase peaks are observed around 100 ppm. Cycling Li1+xMn2O4 on the 3 V plateau does not result in significant changes in the cubic phase. A small amount of residual tetragonal phase accounting for similar to 3% of the Li-7 NMR intensity, however, is observed in spinel deep discharged to x = 1 then returned to x = 0. (C) 2000 The Electrochemical Society. S1099-0062(00)05-067-7. All rights reserved.

引用

页码：463 / 466

页数：4

共 10 条

[1] STRUCTURE REFINEMENT OF THE SPINEL-RELATED PHASES LI2MN2O4 AND LI0.2MN2O4 [J].

DAVID, WIF ;

THACKERAY, MM ;

DEPICCIOTTO, LA ;

GOODENOUGH, JB .

JOURNAL OF SOLID STATE CHEMISTRY, 1987, 67 (02) :316-323

[2] IMPROVED CAPACITY RETENTION IN RECHARGEABLE 4V LITHIUM LITHIUM MANGANESE OXIDE (SPINEL) CELLS [J].

GUMMOW, RJ ;

DEKOCK, A ;

THACKERAY, MM .

SOLID STATE IONICS, 1994, 69 (01) :59-67

[3]

HOME CR, 2000, ELECTROCHEMICAL SOC, V9924, P41

[4] 6Li and 7Li magic-angle spinning nuclear magnetic resonance and in situ X-ray diffraction studies of the charging and discharging of LixMn2O4 at 4 V [J].

Lee, YJ ;

Wang, F ;

Mukerjee, S ;

McBreen, J ;

Grey, CP .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (03) :803-812

[5] 6Li and 7Li MAS NMR studies of lithium manganate cathode materials [J].

Lee, YJ ;

Wang, F ;

Grey, CP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (48) :12601-12613

[6] Cyclic voltammetry of pulsed laser deposited LixMn2O4 thin films [J].

Rougier, A ;

Striebel, KA ;

Wen, SJ ;

Cairns, EJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (09) :2975-2980

[7] SPINEL ELECTRODES FROM THE LI-MN-O SYSTEM FOR RECHARGEABLE LITHIUM BATTERY APPLICATIONS [J].

THACKERAY, MM ;

DEKOCK, A ;

ROSSOUW, MH ;

LILES, D ;

BITTIHN, R ;

HOGE, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (02) :363-366

[8]

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

[9] LITHIUM INSERTION INTO MANGANESE SPINELS [J].

THACKERAY, MM ;

DAVID, WIF ;

BRUCE, PG ;

GOODENOUGH, JB .

MATERIALS RESEARCH BULLETIN, 1983, 18 (04) :461-472

[10]

TUCKER MM, UNPUB

← 1 →