➀ Researchers have developed a method to enhance the ionic conductivity and thermal stability of magnesium borohydride electrolytes by nanoconfining them within mesoporous silica. ➁ The synthesis involved preparing a precursor and using a melt infiltration technique to introduce the composite into the silica pores. ➂ Results showed significant improvements in thermal stability and ionic conductivity, suggesting potential applications in magnesium-based energy storage systems.