Charge-discharge properties of composites of LiMn2O4 and polypyrrole as positive electrode materials for 4 V class of rechargeable Li batteries

被引：133

作者：

Kuwabata, S ^{[1
]}

Masui, S ^{[1
]}

Yoneyama, H ^{[1
]}

机构：

[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 25期

关键词：

rechargeable Li battery; polypyrrole; LiMn2O4; composite; positive electrode;

D O I：

10.1016/S0013-4686(99)00178-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Charge-discharge properties of chemically prepared composites of polypyrrole and spinel LiMn2O4 (LiMn2O4/PPy) have been studied at potentials ranging between 4.3 and 3.2 V vs. Li/Li+. Pellets of LiMn2O4/PPy were successfully prepared by pressing the composite powder without using any binder. Charge-discharge tests of the LiMn2O4/PPy pellet gave a potential plateau around 4 V, indicating that polypyrrole works well as a conducting matrix for the redox reaction of LiMn2O4 reversible arrow Li1-xMn2O4 + xLi(+) + xe(-). The polypyrrole behaved also like a capacitor and contributed to the capacity density of the LiMn2O4/PPy composite: The effects of charge-discharge current densities, the amount of LiMn2O4 in the composite, and cycle tests of charge-discharge reactions were investigated. Elemental analyses of the composites before and after discharging revealed that Li+ and ClO4 were involved in the charge-discharge reactions of LiMn2O4 and polypyrrole, respectively. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4593 / 4600

页数：8

共 34 条

[11] THE APPLICATION OF POLYPYRROLE AS COUNTERELECTRODE IN ELECTROLYTIC CAPACITORS [J].

KRINGS, LHM ;

HAVINGA, EE ;

DONKERS, JJTM ;

VORK, FTA .

SYNTHETIC METALS, 1993, 54 (1-3) :453-459

[12] ELECTROCHEMICAL SYNTHESIS OF COMPOSITE FILMS OF MANGANESE-DIOXIDE AND POLYPYRROLE AND THEIR PROPERTIES AS AN ACTIVE MATERIAL IN LITHIUM SECONDARY BATTERIES [J].

KUWABATA, S ;

KISHIMOTO, A ;

TANAKA, T ;

YONEYAMA, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (01) :10-15

[13] Charge-discharge properties of composite films of polyaniline and crystalline V2O5 particles [J].

Kuwabata, S ;

Idzu, T ;

Martin, CR ;

Yoneyama, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (08) :2707-2710

[14] ANODIC DEPROTONATION OF POLYANILINE FILMS IN ALCOHOL-SOLUTIONS [J].

KUWABATA, S ;

KIHIRA, N ;

YONEYAMA, H .

CHEMISTRY OF MATERIALS, 1993, 5 (05) :604-608

[15] Electrochemical lithium intercalation into a polyaniline/V2O5 nanocomposite [J].

Leroux, F ;

Koene, BE ;

Nazar, LF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (09) :L181-L183

[16] THERMODYNAMIC AND STRUCTURAL CONSIDERATIONS OF INSERTION REACTIONS IN LITHIUM VANADIUM BRONZE STRUCTURES [J].

LIAW, BY ;

RAISTRICK, ID ;

HUGGINS, RA .

SOLID STATE IONICS, 1991, 45 (3-4) :323-328

[17]

LIQUAN C, 1994, SOLID STATE IONICS, V67, P17, DOI DOI 10.1016/0167-2738(93)90303-K

[18] LIXCOO2 "(OLESS-THANXLESS-THAN-OR-EQUAL-TO1) - A NEW CATHODE MATERIAL FOR BATTERIES OF HIGH-ENERGY DENSITY [J].

MIZUSHIMA, K ;

JONES, PC ;

WISEMAN, PJ ;

GOODENOUGH, JB .

MATERIALS RESEARCH BULLETIN, 1980, 15 (06) :783-789

[19] Template synthesis of polypyrrole-coated spinel LiMn2O4 nanotubules and their properties as cathode active materials for lithium batteries [J].

Nishizawa, M ;

Mukai, K ;

Kuwabata, S ;

Martin, CR ;

Yoneyama, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (06) :1923-1927

[20] SOLID-STATE REDOX REACTIONS OF LICOO2 (R(3)OVER-BAR-M) FOR 4 VOLT SECONDARY LITHIUM CELLS [J].

OHZUKU, T ;

UEDA, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (11) :2972-2977

← 1 2 3 4 →