An improved analysis method of constant-current charge/discharge curves and its application to nickel hydroxide electrode

来源期刊：中国有色金属学报(英文版)2003年第2期

论文作者：潘滔 王建明 陈惠 赵彦琳 肖慧明 张鉴清

文章页码：462 - 466

Key words：nickel hydroxide electrode; constant-current charge/discharge curve; derivative

Abstract: The derivative of charge and discharge curves (dt/dE vs E plot) can be used to describe the charge and discharge process more exactly. The dt/dE—E plots of nickel hydroxide electrode at different charge/discharge rates and intermittent discharge experiment are discussed. Though the dt/dE—E plot is affected by many factors, it clearly has intrinsic relation with the nature of active material such as conductivity and thermodynamic potential of active material, which changes with the state of charge. The dt/dE—E plot can also be applied to other electrochemical active materials, especially to those having several phases during charge or discharge.