Mechanochemical synthesis of Li-Mn-O spinels: positive electrode for lithium batteries

被引：56

作者：

Soiron, S ^{[1
]}

Rougier, A ^{[1
]}

Aymard, L ^{[1
]}

Tarascon, JM ^{[1
]}

机构：

[1] UPJV, Lab Reactivite & Chim Solides, UPRES A 6007, F-80000 Amiens, France

来源：

JOURNAL OF POWER SOURCES | 2001年 / 97-8卷

关键词：

mechanochemistry; grinding; lithium manganese oxide; electrochemistry; lithium battery;

D O I：

10.1016/S0378-7753(01)00522-5

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：

Li-Mn-O oxides were synthesized by mechanochemistry from a stoichiometric mixture of Li2O and MnO2 using various grinding times (0 < t(milling) < 15 h). X-ray diffraction patterns of the ground samples (t(milling) < 10h) exhibit the same features as LiMn2O4 spinel structure (SG: Fd3m) with, however, a slight discrepancy in the lattice parameter (a(cub)) suggesting a non-stoichiometry of the Li-Mn-O oxides. a(cub) increases with milling time to reach for 8 h of grinding a value of 8.24 Angstrom similar to stoichiometric LiMn2O4. As a matter of fact, after 8 h of milling, mechanosynthesized Li-Mn-O spinel-type oxide shows quasi-identical electrochemical performances as high temperature LiMn2O4 ground for 1 h. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：402 / 405

页数：4

共 11 条

[1] Effect of carbon additives on the electrochemical properties of AB5 graphite composite electrodes prepared by mechanical milling [J].

Aymard, L ;

Lenain, C ;

Courvoisier, L ;

Salver-Disma, F ;

Tarascon, JM .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (06) :2015-2023

[2] Influence of size and shape of metallic silver and palladium powders on the Ag70Pd30 solid solution formation by mechanical alloying [J].

Aymard, L ;

Dumont, B ;

Beaudoin, B ;

Portemer, F .

JOURNAL OF MATERIALS CHEMISTRY, 1996, 6 (09) :1543-1547

[3] Study of the formation reactions of silver-palladium alloys by grinding and post-milling isothermal annealing [J].

Aymard, L ;

DelahayeVidal, A ;

Portemer, F ;

Disma, F .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 238 (1-2) :116-127

[4] 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

[5] State of manganese atoms during the mechanochemical synthesis of LiMn2O4 [J].

Kosova, NV ;

Asanov, IP ;

Devyatkina, ET ;

Avvakumov, EG .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 146 (01) :184-188

[6] Chemical and magnetic characterization of spinel materials in the LiMn2O4-Li2Mn4O9-Li4Mn5O12 system [J].

Masquelier, C ;

Tabuchi, M ;

Ado, K ;

Kanno, R ;

Kobayashi, Y ;

Maki, Y ;

Nakamura, O ;

Goodenough, JB .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 123 (02) :255-266

[7]

MOUGER C, MULTICHANNEL POTENTI

[8] Unique effect of mechanical milling on the lithium intercalation properties of different carbons [J].

SalverDisma, F ;

Lenain, C ;

Beaudoin, B ;

Aymard, L ;

Tarascon, JM .

SOLID STATE IONICS, 1997, 98 (3-4) :145-158

[9]

SOIRON S, JRFM 2000

[10] LI METAL-FREE RECHARGEABLE BATTERIES BASED ON LI1+XMN2O4 CATHODES (O LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 1) AND CARBON ANODES [J].

TARASCON, JM ;

GUYOMARD, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (10) :2864-2868

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