Effect of alloys modified by an alkaline solution containing potassium borohydride on the kinetic properties of MlNi3.7Co0.6Mn0.4Al0.3 hydride electrode

被引：48

作者：

Pan, HG ^{[1
]}

Chen, Y ^{[1
]}

Wang, CS ^{[1
]}

Ma, JX ^{[1
]}

Chen, CP ^{[1
]}

Wang, QD ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 13期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0013-4686(98)00349-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper describes the effects of treating the alloy powder of an electrode with 6 M KOH solution containing y M KBH4 (y = 0.0, 0.005, 0.01, 0.02 and 0.03) on the kinetic properties of the electrode, including high rate dischargeablilty HRD, exchange current density I-0, symmetry factor beta, limiting current density I-L, diffusion coefficient of hydrogen in the alpha-phase D-alpha, and electrochemical polarization eta(e) and concentration polarization eta(c). The results show that the kinetic parameters HRD, I-0, I-L and D-alpha increase markedly with the increase in the concentration of KBH4, the eta(e) and eta(c) decrease rapidly with increasing concentration of KBH4, but the symmetry factor beta does not change. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：2263 / 2269

页数：7

共 23 条

[1] CERIUM CONTENT AND CYCLE LIFE OF MULTICOMPONENT AB(5) HYDRIDE ELECTRODES [J].

ADZIC, GD ;

JOHNSON, JR ;

REILLY, JJ ;

MCBREEN, J ;

MUKERJEE, S ;

KUMAR, MPS ;

ZHANG, W ;

SRINIVASAN, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (10) :3429-3433

[2] HYDRIDING PROPERTIES OF MMNI5 SYSTEM WITH ALUMINUM, MANGANESE AND TIN SUBSTITUTIONS [J].

BALASUBRAMANIAM, R ;

MUNGOLE, MN ;

RAI, KN .

JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 196 (1-2) :63-70

[3] DEVELOPMENT AND COMMERCIALIZATION OF NICKEL METAL HYDRIDE SECONDARY BATTERIES [J].

FURUKAWA, N .

JOURNAL OF POWER SOURCES, 1994, 51 (1-2) :45-59

[4]

IWAKURA C, 1993, ELECTROCHIM ACTA, V40, P659

[5] Surface treatment of a LaNi5-type metal-hydride electrode with an alkaline solution dissolving cobalt(II) hydroxide [J].

Kuriyama, N ;

Sakai, T ;

Miyamura, H ;

Tanaka, H ;

Uehara, I ;

Meli, F ;

Schlapbach, L .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 238 (1-2) :128-140

[6] Development of AB(5) type hydrogen storage alloys with low Co content for rechargeable Ni-MH batteries with respect to electric vehicle applications [J].

Lichtenberg, F ;

Kohler, U ;

Folzer, A ;

Adkins, NJE ;

Zuttel, A .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 253 :570-573

[7] Hydriding properties of the ternary Mm-based AB(5) alloys modified by surface treatment [J].

Liu, FJ ;

Suda, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 232 (1-2) :204-211

[8] Absorption and desorption kinetics of hydrogen storage alloys [J].

Martin, M ;

Gommel, C ;

Borkhart, C ;

Fromm, E .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 238 (1-2) :193-201

[9]

MATSUOKA M, 1995, ELECTROCHIM ACTA, V38, P561

[10] DOUBLE-PHASE HYDRIDE FORMING COMPOUNDS - A NEW CLASS OF HIGHLY ELECTROCATALYTIC MATERIALS [J].

NOTTEN, PHL ;

HOKKELING, P .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (07) :1877-1885

← 1 2 3 →