An electrically conductive base includes a holding body and covering particles. The holding body includes a first super engineering plastic having non-crystallinity. The covering particles are dispersed in the holding body, and each include a center part and a covering part. The center part includes an electrically conductive material. The covering part covers a surface of the center part and includes a second super engineering plastic having crystallinity.

An electrically conductive base includes a holding body and covering particles. The holding body includes a first super engineering plastic having non-crystallinity. The covering particles are dispersed in the holding body, and each include a center part and a covering part. The center part includes an electrically conductive material. The covering part covers a surface of the center part and includes a second super engineering plastic having crystallinity.

A power storage device packaging material including at least a substrate layer, an outer adhesive layer, a barrier layer, and a sealant layer in this order, wherein a difference in linear expansion coefficient at 20 to 150° C. between the substrate layer and the barrier layer is 20×10.sup.−6/° C. or less in both an MD direction and a TD direction.

Provided is an exterior material for an electrical storage device that can be cold molded, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, wherein the exterior material for an electrical storage device has exceptional moist heat resistance. An exterior material for an electrical storage device, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, the adhesive agent layer having moist heat resistance, and it being possible to conduct cold molding on the layered body.

Provided is an exterior material for an electrical storage device that can be cold molded, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, wherein the exterior material for an electrical storage device has exceptional moist heat resistance. An exterior material for an electrical storage device, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, the adhesive agent layer having moist heat resistance, and it being possible to conduct cold molding on the layered body.

A battery includes an electrode assembly, a first insulation layer, a second insulation layer, and at least one first adhesion portion. The electrode assembly includes a first surface and a second surface provided back away from the first surface; the first insulation layer is provided on the first surface; the second insulation layer is provided on the first surface and spaced apart from the first insulation layer; and the first adhesion portion is provided on the first surface and located in a zone between the first insulation layer and the second insulation layer.

A battery includes an electrode assembly, a first insulation layer, a second insulation layer, and at least one first adhesion portion. The electrode assembly includes a first surface and a second surface provided back away from the first surface; the first insulation layer is provided on the first surface; the second insulation layer is provided on the first surface and spaced apart from the first insulation layer; and the first adhesion portion is provided on the first surface and located in a zone between the first insulation layer and the second insulation layer.

An energy storage device sits within a trench with electrically insulated sides within a substrate. Within the trench there is an anode, an electrolyte disposed on the anode, and a cathode structure disposed on the electrolyte. Variations of an electrically conductive contact are disposed on and in electrical contact with the cathode structure. At least part of the conductive contact is disposed within the trench and the conductive contact partially seals the anode, electrolyte, and cathode structure within the trench. Conductive and/or non-conductive adhesives are used to complete the seal thereby enabling full working electrochemical devices where singulation of the devices from the substrate enables high control of device dimensionality and footprint.

A packaging film including a protective layer, a first bonding layer, a metal layer. a second bonding layer and a sealing layer. The protective layer, the first bonding layer, the metal layer. the second bonding layer, and the sealing layer are sequentially stacked. The protective layer includes a polymer resin layer and a carbon material.

A packaging film including a protective layer, a first bonding layer, a metal layer. a second bonding layer and a sealing layer. The protective layer, the first bonding layer, the metal layer. the second bonding layer, and the sealing layer are sequentially stacked. The protective layer includes a polymer resin layer and a carbon material.