SOLID ELECTROLYTE-CONTAINING LAYER

Provided is a solid electrolyte-containing layer capable of preventing a short circuit caused by the formation of a dendrite. A solid electrolyte-containing layers () in accordance with an aspect of the present invention includes (i) an inorganic solid electrolyte (), (ii) a heat-resistant resin (), and (iii) at least one selected from the group consisting of an ionic liquid, a mixture of an ionic liquid and a lithium salt, and a polymer electrolyte.