Mechanism of the memory effect in "Nickel" electrodes

被引：28

作者：

Huggins, Robert A. ^{[1
]}

机构：

[1] Univ Kiel, Fac Engn, Kiel, Germany

来源：

SOLID STATE IONICS | 2006年 / 177卷 / 26-32期

关键词：

nickel electrode; memory effect; second discharge plateau; HNi2O3;

D O I：

10.1016/j.ssi.2006.03.005

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：

A large number of commercial batteries employ the HNO2-HMO2 (or Ni(OH)(2)-NiOOH) reaction in their positive electrodes. Such batteries often exhibit a so-called "memory effect" in which the available capacity at useful voltages noticeably decreases if they are used under conditions in which they are repeatedly only partially discharged before being recharged. This paper presents a rational and consistent explanation of this phenomenon based upon the thermodynamics of ternary systems. (c) 2006 Elsevier B.V. All rights reserved.

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页码：2643 / 2646

页数：4

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