A steel foil for an electrical storage device container, including a steel foil, a metal chromium layer layered on the steel foil, and a hydrated chromium oxide layer layered on the metal chromium layer, in which the concentration of Fe from a surface of the hydrated chromium oxide layer to a depth of 10 nm is less than 10% by mass, the area ratio of a site having an arithmetic mean roughness Ra of 10 nm or more in a visual field of 1 m at the surface of the hydrated chromium oxide layer is less than 20%, and a site having an arithmetic mean roughness Ra of less than 10 nm in a visual field of 1 m has an arithmetic mean roughness Ra of 3 nm or less in a visual field of 1 m at the surface of the hydrated chromium oxide layer, is adopted.

An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

Provided are a steel sheet for battery outer tube cans, which is used for an aftergilding method and is suppressed in the occurrence of scratches, and which enables the achievement of a battery outer tube can that has excellent corrosion resistance and buckling resistance; and a battery outer tube can and a battery, each of which uses this steel sheet for battery outer tube cans. This steel sheet for battery outer tube cans has an FeNi diffusion layer on both surface layers of a steel sheet; the Nb content in the steel sheet is from 0.010% by mass to 0.050% by mass (inclusive); and the adhesion amount of the FeNi diffusion layer per one surface of the steel sheet is from 50 mg/m.sup.2 to 500 mg/m.sup.2 (inclusive) in terms of Ni.

A battery packaging material has both a high-temperature-resistant fireproof characteristic and a fire-retardant fireproof characteristic. The battery packaging material is successively disposed with a protective layer, a metal layer, and an encapsulating layer from outside to inside, where a first high-temperature-resistant layer is disposed between the metal layer and the protective layer; a second high-temperature-resistant layer is disposed between the metal layer and the encapsulating layer; and a fire-retardant layer is disposed above the protective layer, between the protective layer and the metal layer, between the metal layer and the encapsulating layer, or below the encapsulating layer.

A solid-state battery package that includes a substrate; a solid-state battery on the substrate; and an exterior part that covers the solid-state battery, where the exterior part includes a plurality of corners, and at least a top surface-side corner of the plurality of corners has an outward curved surface that is curved outward relative to the solid-state battery.

A solid-state battery package that includes a substrate; a solid-state battery on the substrate; and an exterior part that covers the solid-state battery, where the exterior part includes a plurality of corners, and at least a top surface-side corner of the plurality of corners has an outward curved surface that is curved outward relative to the solid-state battery.

In one aspect, the present application provides a multilayer sheet including a metal layer, a bonding layer arranged on a first surface of the metal layer, and a buffer layer arranged on a second surface of the metal layer, wherein the buffer layer is provided with a hole. The present application further provides a battery including an electrode assembly, and a packaging bag prepared from the multilayer sheet. Wherein the packaging bag packages the electrode assembly. It is an object of the present application to provide a multilayer sheet and battery capable of reducing vibration damage.

The present invention relates to a packaging material for a power storage device including at least a substrate layer, an adhesive layer, a metal foil layer, an anti-corrosion treatment layer, an adhesive resin layer and a thermal bonding resin layer laminated in this order, wherein a thickness of the adhesive layer is in a range of 0.3 to 3 m, a 10-point average roughness Rzjis (in accordance with JIS B0601) of a surface of the metal foil layer which faces the substrate layer is in a range of 0.3 to 3 m, and the thickness of the adhesive layer is not less than the 10-point average roughness Rzjis and not more than 3 m, and a peel strength between the substrate layer and the metal foil layer (in accordance with JIS K6854-3) is in a range of 5 to 12 N/15 mm.

An aluminum laminated packaging film, and lithium-ion battery using same. The aluminum laminated film (1) comprises an aluminum layer (12), a graphene layer (14), and a sealing layer (13) in sequence. The graphene layer (14) comprises graphene sheets and a thermoplastic polymer adhesive. The platelet structure of the graphene and irregular arrangement of the graphene enable locations between sheets to form indirect and complex paths, creating a huge barrier for lithium ions moving toward the aluminum layer, thus preventing the lithium ions from forming aluminum-lithium alloy with the metal aluminum, and avoiding corrosion of the aluminum layer (12).

Techniques regarding a thin film battery, which can comprise one or more sealing layers, and a method of manufacturing thereof are provided. For example, one or more embodiments described herein can regard an apparatus that can comprise a thin film battery cell encapsulated in a multi-layer stack comprising an adhesive layer located between a first substrate layer and a second substrate layer. The apparatus can also comprise a metal sealing layer at least partially surrounding the multi-layer stack.