Solid electrolyte membrane comprising adhesive layer and rechargeable battery including the same

An all-solid-state battery comprising:

• a cathode;
• a first solid electrolyte layer on the cathode;
• a porous adhesive structure on the first solid electrolyte layer;
• a second solid electrolyte layer on the porous adhesive structure;
• and
• an anode on the second solid electrolyte layer,
• wherein the porous adhesive structure includes:
• a porous frame having a first surface and a second surface that face each other, and including pores each extending from the first surface to the second surface;
• a first adhesive layer on the first surface;
• and
• a second adhesive layer on the second surface,
• wherein the first adhesive layer and the second adhesive layer partially fill each of the pores of the porous frame,
• wherein the first adhesive layer is in contact with the porous frame and the first solid electrolyte layer,
• wherein the second adhesive layer is in contact with the porous frame and the second solid electrolyte layer,
• wherein the first solid electrolyte layer includes a first binder and a first solid electrolyte,
• wherein the second solid electrolyte layer includes a second binder and a second solid electrolyte,
• wherein a content of the first binder in the first solid electrolyte layer and a content of the second binder in the second solid electrolyte layer are each about 0.1% to about 2% by weight,
• wherein the first solid electrolyte includes a halide-based solid electrolyte, and
• wherein the second solid electrolyte includes a sulfide solid electrolyte.

A rechargeable battery, comprising:

• a first electrode;
• a first solid electrolyte layer on the first electrode;
• a porous adhesive structure on the first solid electrolyte layer;
• a second solid electrolyte layer on the porous adhesive structure;
• and
• a second electrode on the second solid electrolyte layer,
• wherein the porous adhesive structure includes:
• a porous frame including a plurality of pores, each of the pores extending through the porous frame;
• and
• a first adhesive layer in contact with the porous frame and the first solid electrolyte layer, and
• wherein a content of a first binder in the first solid electrolyte layer and a content of a second binder in the second solid electrolyte layer are each about 0.1% to about 5% by weight.