SECONDARY LI CELLS .2. CHARACTERISTICS OF LITHIATED MANGANESE OXIDES SYNTHESIZED FROM LINO3 AND MNO2

被引：29

作者：

LI, L ^{[1
]}

PISTOIA, G ^{[1
]}

机构：

[1] CNR,CTR STUDIO ELETTROCHIM & CHIM FIS INTERFASI,ROME,ITALY

来源：

SOLID STATE IONICS | 1991年 / 47卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(91)90245-7

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：

The reaction between LiNO3 and MnO2 has been examined in details. It has been found that in selected experimental conditions the Li-Mn-O phase thus formed is predominantly Li(x)MnO2 (with x approximately 0.2 for a LiNO3: CMD ratio of 3:7). Especially if CMD is pre-treated with HNO3, a material is obtained which, in button Li cells, delivers > 0.15 Ah/g at 1 mA/cm2 for several cycles. The structure of this material is fairly resistant to lithiation and allows faster Li+ diffusion than pure MnO2. By impedance measurements, the evolution with cycle number of some cathode characteristics, such as D approximately Li+, charge-transfer resistance and surface-layer resistance, have been followed. Preliminary tests have shown no capacity loss for a cycled cell during storage in the charged state.

引用

页码：241 / 249

页数：9

共 25 条

[1]

ATLUNG S, 1987, DECHEMA MONOGR, V109, P333

[2] CHARACTERIZATION OF THE ELECTRODE ELECTROLYTE INTERFACES IN CELLS OF THE TYPE LI/PEO-LICF3SO3/V6O13 BY AC IMPEDANCE METHODS [J].

BRUCE, PG ;

KROK, F .

SOLID STATE IONICS, 1989, 36 (3-4) :171-174

[3] THEORETICAL-STUDY OF INTERCALATION IN CONSTANT CURRENT CYCLING [J].

CHABAGNO, JM ;

DEROO, D ;

DALARD, F ;

MERIENNE, JL .

SOLID STATE IONICS, 1984, 13 (01) :45-52

[4]

Davis Seamus, COMMUNICATION

[5] DEFECT SPINELS IN THE SYSTEM LI2O.YMNO2 (Y-GREATER-THAN-2.5) - A NEUTRON-DIFFRACTION STUDY AND ELECTROCHEMICAL CHARACTERIZATION OF LI2MN4O9 [J].

DEKOCK, A ;

ROSSOUW, MH ;

DEPICCIOTTO, LA ;

THACKERAY, MM ;

DAVID, WIF ;

IBBERSON, RM .

MATERIALS RESEARCH BULLETIN, 1990, 25 (05) :657-664

[6]

GLOVER D, 1989, HDB MANGANESE DIOXID, P25

[7] BOUNDED DIFFUSION IN SOLID-SOLUTION ELECTRODE POWDER COMPACTS .2. THE SIMULTANEOUS MEASUREMENT OF THE CHEMICAL DIFFUSION-COEFFICIENT AND THE THERMODYNAMIC FACTOR IN LIXTIS2 AND LIXCOO2 [J].

HONDERS, A ;

DERKINDEREN, JM ;

VANHEEREN, AH ;

DEWIT, JHW ;

BROERS, GHJ .

SOLID STATE IONICS, 1985, 15 (04) :265-276

[8] LITHIUM ION DIFFUSION IN THE DEFECT THIOSPINEL LIXCU0.07TI2S4 (0.1-LESS-THAN-OR-EQUAL-TO-1.85) [J].

JAMES, ACWP ;

GOODENOUGH, JB .

SOLID STATE IONICS, 1988, 27 (1-2) :37-43

[9] REACTION MODEL FOR IRON DISSOLUTION STUDIED BY ELECTRODE IMPEDANCE .1. EXPERIMENTAL RESULTS AND REACTION MODEL [J].

KEDDAM, M ;

MATTOS, OR ;

TAKENOUTI, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (02) :257-266

[10]

KOZAWA A, 1989, PROG BATTERIES SOLAR, V8, P49

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