Rapid discharge performance of composite electrode of hydrated sodium manganese oxide and acetylene black

被引：51

作者：

Hibino, M ^{[1
]}

Kawaoka, H ^{[1
]}

Zhou, HS ^{[1
]}

Honma, I ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Elect Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 28期

关键词：

sodium manganese oxide; cathode material; lithium battery; rapid discharge; composite material;

D O I：

10.1016/j.electacta.2004.07.002

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hydrated sodium manganese oxide was synthesized by reducing permanganate ion using ethanol by a sol-gel method. By including acetylene black in the synthetic reaction, we obtained composite materials in which sodium manganese oxide hydrate particles were small and mixed well with the acetylene black. We evaluated those composites as a lithium battery cathode and found that they showed 170 mA hg(-1) under 5 mA g(-1) and 117 mA hg(-1) under 5 Ag-1 on the basis of composite weight. This rapid discharge performance was probably caused by the favorable contact condition of the composite constituents. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：5209 / 5216

页数：8

共 40 条

[1]

AKAMATU H, 1951, B CHEM SOC JPN, V24, P27

[2] RECHARGEABLE GAMMA-MNO2 FOR LITHIUM BATTERIES USING A SULFONE-BASED ELECTROLYTE AT 150-DEGREES-C [J].

BACH, S ;

BAFFIER, N ;

PEREIRARAMOS, JP ;

MESSINA, R .

JOURNAL OF POWER SOURCES, 1993, 44 (1-3) :569-575

[3] An electrochemical investigation of Li intercalation in the sol-gel LiMn2O4 spinel oxide [J].

Bach, S ;

Farcy, J ;

Pereira-Ramos, JP .

SOLID STATE IONICS, 1998, 110 (3-4) :193-198

[4] Sol-gel route to the tunneled manganese oxide cryptomelane [J].

Ching, S ;

Roark, JL ;

Duan, N ;

Suib, SL .

CHEMISTRY OF MATERIALS, 1997, 9 (03) :750-754

[5] The role and utilization of pseudocapacitance for energy storage by supercapacitors [J].

Conway, BE ;

Birss, V ;

Wojtowicz, J .

JOURNAL OF POWER SOURCES, 1997, 66 (1-2) :1-14

[6]

Crank J., 1975, MATH DIFFUSION

[7] LITHIUM INSERTION INTO BETA-MNO2 AND THE RUTILE-SPINEL TRANSFORMATION [J].

DAVID, WIF ;

THACKERAY, MM ;

BRUCE, PG ;

GOODENOUGH, JB .

MATERIALS RESEARCH BULLETIN, 1984, 19 (01) :99-106

[8] Modeling of the charge-discharge dynamics of lithium manganese oxide electrodes for lithium-ion batteries [J].

Deiss, E ;

Häringer, D ;

Novák, P ;

Haas, O .

ELECTROCHIMICA ACTA, 2001, 46 (26-27) :4185-4196

[9] Nanostructured lithium manganese oxide cathodes obtained by reducing lithium permanganate with methanol [J].

Im, D ;

Manthiram, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (08) :A1001-A1007

[10] Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide [J].

Johnson, BJ ;

Doughty, DH ;

Voigt, JA ;

Boyle, TJ .

JOURNAL OF POWER SOURCES, 1997, 68 (02) :634-636

← 1 2 3 4 →