MgNiCu合金贮氢电极的电化学性能的研究

采用机械合金化工艺由Mg、Ni、Cu元素粉末按选定比例合成MgNiCu贮氢合金。着重研究了MgNiCu贮氢电极的充放电特性、放电容量与球磨时间之间的关系、放电容量与放电电流之间的关系,以及循环工作寿命。结果表明:MgNiCu贮氢电极的容量随球磨时间的延长呈线性增加,抗衰减能力增强,且耐大电流放电性能也提高。

STUDY ON ELECTRO-CHEMISTRY CHARACTERISTICS OF MgNiCu HYDROGEN STORAGE ELECTRODES

The MgNiCu hydrogen storage alloys were made of Mg,Ni,Cu elemental powder by mechanical alloying.The charging and discharging characteristics of MgNiCu electrodes,the relation of the discharging capacity of MgNiCu electrodes to different milling time,the relation of the discharging capacity of MgNiCu electrodes to the discharging current and the circle life of the MgNiCu electrodes were studied emphatically.The results showed that,with increasing the milling time,the discharging capacity of the MgNiCu electrodes increased linearly,the property of attenuation resistance was improved, and the discharging characteristic by high electric current was also improved.