The Preparation And Performance Of Magnesium Battery With Biocompatibility

With the development of medical science and technology,more and more functional electronic devices are used to improve the function ofhuman body and life quality.The research and development of the biocompatible battery of the corresponding electronic devices has attracted wide attention of the researchers in the filds of both biomedical and material sciences.Due to its good biocompatibility,high energy density and negative standard potential,magnesium battery has attracted more and more attention of researchers internationally.However,the corrosion rate of metal magnesium is high,and the formation of dense oxide film on the surface of the metal is seriously impeded.In this paper,the corrosion resistance of the magnesium anode is improved by the method of the alloy design,which effectively impruve the service life of the magnesium battery.Firstly in the alloy preparation in the process,biocompatible elements Ca,Zr were added to from Mg-Zn-Ca and Mg-Zn-Zr alloys.By microscopic observation and corrosion degradation experiment,the effect of the addition of Zr,Ca on magnesium zinc alloy microstructure and properties is studied here.The results showed that adding Zr and Ca elements can significantly refine the grain of Mg-Zn alloy,improve the corrosion resistance of the alloy,and prolong the life of the alloy.The alloy with good biocompatibility and corrosion resistance was achieved by the method.Electrochemical test of the battery was carried out by using the biocompatible alloy in the preparation of the battery.The experimental results show that with the battery(Mg-Zn-Ca)and another battery(Mg-Zn-Zr),compared to the discharge voltage platform of the battery can be reached around 1.5 V,the discharge time for 100 h.