电解液浓度对AT61、AP65镁合金阳极电化学性能的影响  

Effect of electrolyte concentration on electrochemical properties of AT61 and AP65 magnesium alloy anodes

作　　者：朱伶俐[1] 刘慧[1,2] 房洪杰 史春丽[3] 余琨 Zhu Lingli;Liu Hui;Fang Hongjie;Shi Chunli;Yu Kun(Material Department in College of Engineering,Yantai Nanshan University,Yantai Shandong 265713,China;School of Materials Science and Engineering,Central South University,Changsha Hunan 410083,China;Shandong Nanshan Aluminum Co.,Ltd.,Yantai Shandong 265706,China)

机构地区：[1]烟台南山学院工学院材料系,山东烟台265713 [2]中南大学材料科学与工程学院,湖南长沙410083 [3]山东南山铝业股份有限公司,山东烟台265706

出　　处：《金属热处理》2020年第1期101-105,共5页Heat Treatment of Metals

基　　金：国家自然科学基金(51702277);国家十三五重点研发专项(2017YFB0306404);山东省自然科学基金(ZR2017MEM005);山东省重点研发项目(2017GGX20130)

摘　　要：采用X射线衍射仪、扫描电镜、能谱测试仪、电化学测试仪和电池测试仪等检测技术,分析了轧制退火态AT61(Mg-6%Al-1%Sn)和AP65(Mg-6%Al-5%Pb)镁合金阳极的成分,研究了质量分数分别为3. 5%和7. 0%NaCl电解液对这两种镁合金阳极电化学性能的影响。结果表明:经430℃×16 h均匀化热处理后,轧制退火态AT61和AP65镁合金中Mg17Al12相扩散于基体中;相对3. 5%NaCl电解液,两种镁合金阳极在7. 0%NaCl电解液中放电性能得到很大提升,同时镁合金-空气电池的放电稳定性得到增强。The composition of the rolled then annealed AT61( Mg-6% Al-1% Sn) and AP65(Mg-6% Al-5% Pb) magnesium alloy anodes were analyzed,the effects of 3. 5 wt% and 7. 0 wt% NaCl electrolytes on the electrochemical properties of two magnesium alloys were studied by using X-ray diffraction,scanning electron microscopy,energy spectrum analyzer,electrochemical measurement and battery tester. The results show that the Mg17Al12 phase diffuses into the matrix of AT61 and AP65 magnesium alloys after homogenization heat-treatment at 430 ℃ for 16 h;compared with 3. 5 wt% NaCl electrolyte,the discharge performance of magnesium alloy anodes have been improved in 7. 0 wt% NaCl electrolyte while magnesium alloy-air batteries have enhanced discharge stability.

关 键 词：AT61镁合金 AP65镁合金 电化学性能 空气电池 

分 类 号：TG146.22[一般工业技术—材料科学与工程]