Separator, lithium metal negative electrode and lithium metal secondary battery including solid superacid coating layer

摘要

The present invention relates to a separator including a solid super acid coating layer, a lithium metal negative electrode, and a lithium metal secondary battery. In a lithium metal secondary battery using lithium metal as a negative electrode, the mobility and reaction uniformity of lithium at the interface between the lithium metal negative electrode and the electrolyte solution It is to suppress the growth of dendrite structure of lithium metal by improving In the lithium metal secondary battery according to the present invention, a solid superacid coating layer containing a solid superacid having a porous structure is formed on at least one of the lithium metal anode and the separator.