A composition for a non-aqueous secondary battery adhesive layer contains organic particles and a water-soluble polymer. The water-soluble polymer has a 1 mass % aqueous solution viscosity of at least 500 mPa.Math.s and not more than 9,000 mPa.Math.s. Viscosity .sub.0 of the composition for a non-aqueous secondary battery adhesive layer at a shear rate of 100 s.sup.1 is at least 10 mPa.Math.s and not more than 200 mPa.Math.s, and a ratio of .sub.0 relative to viscosity .sub.1 of the composition for a non-aqueous secondary battery adhesive layer at a shear rate of 10,000 s.sup.1 is at least 1.5 and not more than 5.0.

A hybrid solid-state electrolyte layer for use in an electrochemical cell is provided. The hybrid solid-state electrolyte layer includes a polymeric material, a ceramic material, and an interfacial material adhering the polymeric material and the ceramic material. The interfacial material includes a branched copolymer that includes dopamine and a second monomer. The second monomer forms a polymeric moiety in the copolymer that is the same or similar to the polymeric material. In certain variations, the polymeric material defines a polymeric layer, the ceramic material defines a ceramic layer, and the interfacial material defines an interfacial layer that is disposed between the polymeric layer and the ceramic layer. In other variations, the polymeric material defines a polymeric matrix, the ceramic material defines a plurality of ceramic particles dispersed in the polymeric matrix, and the plurality of ceramic particles are coated with the interfacial material.

An electrode structure including: an electrode; a current collector facing the electrode; an elastic body located between the electrode and the current collector, the elastic body having conductivity; and an electrode fixing member located between the elastic body and the current collector, wherein at least a part of a peripheral edge of the electrode being fixed between the electrode fixing member and the current collector.

A solid electrolyte for a negative electrode of a secondary battery includes a first porous solid electrolyte having a first surface; a first coating on the first surface of the first porous solid electrolyte; an adhesive electrolyte layer on the first porous solid electrolyte; and a second porous solid electrolyte on the adhesive electrolyte layer, the second porous solid electrolyte having a second surface; wherein the first porous solid electrolyte and the second porous solid electrolyte each have an ionic conductivity effective for a deposition metal; and wherein a surface of the first coating is less favorable for deposition of the deposition metal than the second surface of the second solid electrolyte. An electrode assembly and an electrochemical cell including the solid electrolyte and method for the manufacture thereof are also described.

A packaging material for batteries, which is not susceptible to the formation of a pinhole or cracking during the forming, while having excellent formability, and is effectively suppressed in curling after the forming, which is formed of a laminate with at least a base layer, an adhesive layer, a metal layer and a thermally fusible resin layer in this order, and wherein: the tensile modulus of elasticity of the base layer in one direction and the tensile modulus of elasticity of the base layer in a perpendicular direction in the same plane are both within the range of from 400 N/15 mm to 1,000 N/15 mm (inclusive); and the absolute value of the difference between the tensile modulus of elasticity of the base layer in the one direction and the tensile modulus of elasticity of the base layer in the other is 150 N/15 mm or less.

A separator includes a substrate and a coating layer on at least a surface of the substrate, the coating layer including first organic particles, second organic particles, and a first binder, the first organic particles have a smaller mean particle diameter (D50) than that of the second organic particles, and at least one selected from the first organic particles and the second organic particles has a core-shell structure.

A packaging material for batteries, which is not susceptible to the formation of a pinhole or cracking during the forming, while having excellent formability, and is effectively suppressed in curling after the forming, which is formed of a laminate with at least a base layer, an adhesive layer, a metal layer and a thermally fusible resin layer in this order, and wherein: the tensile modulus of elasticity of the base layer in one direction and the tensile modulus of elasticity of the base layer in a perpendicular direction in the same plane are both within the range of from 400 N/15 mm to 1,000 N/15 mm (inclusive); and the absolute value of the difference between the tensile modulus of elasticity of the base layer in the one direction and the tensile modulus of elasticity of the base layer in the other is 150 N/15 mm or less.

The present disclosure relates membrane-electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The membrane-electrode assemblies include a first porous electrode; an ion permeable membrane, having a first major surface and an opposed second major surface; a first discontinuous transport protection layer disposed between the first porous electrode and the first major surface of the ion permeable membrane; and a first adhesive layer in contact with the first porous electrode and at least one of the first discontinuous transport protection layer and the ion permeable membrane. The first adhesive layer is disposed along the perimeter of the membrane-electrode assembly. The first porous electrode and first discontinuous transport protection layer, without the presence of the first adhesive layer, are not an integral structure and the membrane-electrode assembly is an integral structure

Provided herein solid-state battery architectures that include an oxide electrolyte in contact with the anode of an electrochemical cell and a sulfide electrolyte in contact with the cathode of an electrochemical cell.

A pressure sensitive adhesive polymer electrolyte having a peel adhesion by test A of more than 1 N/cm and an ionic conductivity by test B of more than 10.sup.?6 (ohm*cm).sup.?1, prepared by polymerizing: 5-60 wt % of acrylate monomer from the group of the (meth)acrylic esters having 4-15 carbon atoms, which as a homopolymer would have a T.sub.g by test C of less than ?30? C., 10-80 wt % of acrylate monomer from the group of the (meth)acrylic esters having 4-25 carbon atoms and containing at least one heteroatom, which as a homopolymer would have a T.sub.g by test C of less than 100? C., 0.05-10 wt % of initiator, 2-13 wt % of conducting salt, optionally plasticizer, and optionally solvent, which after the polymerization is typically removed at least partly,
where optionally one or more of the components are added at least proportionally only during or after the polymerization.