Patent 11158906 was granted and assigned to NGK Insulators on October, 2021 by the United States Patent and Trademark Office.
Provided is a layered double hydroxide (LDH) separator comprising a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. A central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator.