海水电池用镁合金阳极材料制备与性能研究  

Preparation and performance study of sea-water battery with Mg-Hg-Ga alloy as anode material

作　　者：贾文彬[1] 房娃[1] 黄锐妮[1] 孙凯[1] 

机构地区：[1]中国电子科技集团公司第十八研究所,天津300384

出　　处：《电源技术》2016年第10期2004-2005,2022,共3页Chinese Journal of Power Sources

摘　　要：主要研究了汞含量对材料电性能和自腐蚀的影响。采用密封熔炼的方式制备了高性能海水激活电池用阳极材料Mg-Hg-Ga合金,采用ICP、金相显微镜、恒流极化等测试方法对材料的成分、组织结构及电化学性能进行表征,采用析氢装置测试静态腐蚀速率,采用与氯化亚铜组装成电池放电对其电性能进行测试。实验结果表明,制备的材料都有良好的组织,晶粒细小均匀,成分均匀,放电电位负移,析氢低,激活快,成泥少,放电后表面腐蚀均匀,无局部穿孔。在镓质量含量为1.6%时,最佳汞含量为1.3%,激活最快为0.9 s,放电析氢量最低为0.5 m L/min·cm2。The effect of the content of Hg on the electrical performance and self-erosion of the alloy was studied, Mg-Hg-Ga alloy as anode material for high-performance sea-water-activated battery was prepared by sealed-melting technique. Ingredient, organization and the electrical performance of the alloy were characterized by testing methods such as ICP, metallographic microscope, constant current polarization, etc; static erosion rate was tested with hydrogen evolution equipment; electrical performance was tested with the battery assembled with the alloy and CuCI. It is shown from the testing results that： the prepared alloy matadal is well organized, the crystal is fine and uniform, ingredients are well distributed, discharging voltage negatively shifts, hydrogen evolution lowers, activation accelerates, mud-formation decreases, and after the discharge, surface erosion is uniform, not any sign of local penetration. When Ga content is 1.6%, the best Hg content is 1.3%, which enables the fastest activation of 0.9 s and lowest hydrogen evolution of 0.5 mL/min·cm^2 during the discharge.

关 键 词：Mg-Hg-Ga合金 密封熔炼 电化学性能 电性能 

分 类 号：TM912[电气工程—电力电子与电力传动]