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WO-2026095014-A1 - POWER STORAGE DEVICE EXTERIOR MEMBER, METHOD FOR MANUFACTURING POWER STORAGE DEVICE EXTERIOR MEMBER, POWER STORAGE DEVICE, AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE

WO2026095014A1WO 2026095014 A1WO2026095014 A1WO 2026095014A1WO-2026095014-A1

Abstract

This power storage device exterior member is consisted of a laminate comprising at least a base material layer, a barrier layer, and a heat-fusible resin layer, in this order from the outside. The barrier layer contains 50 mass% or more of a recycled material of a 1000-series aluminum alloy, with Fe contained within a range of 0.5-1.7 mass%.

Inventors

  • SHIMADA, SHINYA
  • KANAZAWA, Sayako
  • Sasaki, Miho

Assignees

  • 大日本印刷株式会社

Dates

Publication Date
20260507
Application Date
20251030
Priority Date
20241030

Claims (9)

  1. It is composed of a laminate comprising, in order from the outside, at least a base layer, a barrier layer, and a heat-sealable resin layer. The barrier layer contains 50% by mass or more of recycled 1000 series aluminum alloy, and Fe is included in the range of 0.5% by mass or more and 1.7% by mass or less, as an exterior component for an energy storage device.
  2. It is composed of a laminate comprising, in order from the outside, at least a base layer, a barrier layer, and a heat-sealable resin layer. The barrier layer contains 50% by mass or more of recycled aluminum alloy material, and Fe is included in the range of 0.5% by mass or more and 1.7% by mass or less. The recycled aluminum alloy material is Si: 0.25% by mass or less, Fe: 0.40% by mass or less, Cu: 0.20% by mass or less, Mn: 0.05% by mass or less, Mg: 0.10% by mass or less, An exterior component for energy storage devices that satisfies the composition requirement of having unavoidable impurities of 0.15% by mass or less.
  3. A method for manufacturing an exterior member for an energy storage device according to claim 1 or 2, The process includes manufacturing the aforementioned laminate, The barrier layer contains 50% by mass or more of the recycled aluminum alloy material. A method for manufacturing an exterior component for an energy storage device.
  4. Exterior components for energy storage devices, The electrode body is enclosed by the aforementioned outer casing member for the energy storage device, The aforementioned exterior member for the energy storage device is It is composed of a laminate comprising, in order from the outside, at least a base layer, a barrier layer, and a heat-sealable resin layer. The barrier layer contains 50% by mass or more of recycled material from 1000 series aluminum alloy, and Fe is included in the range of 0.5% by mass or more and 1.7% by mass or less in the energy storage device.
  5. Exterior components for energy storage devices, The electrode body is enclosed by the aforementioned outer casing member for the energy storage device, The aforementioned exterior member for the energy storage device is It is composed of a laminate comprising, in order from the outside, at least a base layer, a barrier layer, and a heat-sealable resin layer. The barrier layer contains 50% by mass or more of recycled aluminum alloy material, and Fe is included in the range of 0.5% by mass or more and 1.7% by mass or less. The recycled aluminum alloy material is Si: 0.25% by mass or less, Fe: 0.40% by mass or less, Cu: 0.20% by mass or less, Mn: 0.05% by mass or less, Mg: 0.10% by mass or less, An energy storage device that satisfies the requirement of a composition with unavoidable impurities of 0.15% by mass or less.
  6. The energy storage device according to claim 4 or 5, further comprising a first sealing portion which is sealed by joining opposing surfaces of the energy storage device exterior member while the electrode body is enclosed by the energy storage device exterior member.
  7. A lid that seals the electrode body together with the exterior member for the energy storage device, The energy storage device according to claim 4 or 5, further comprising a second sealing portion to which the cover and the exterior member for the energy storage device are joined.
  8. The exterior member for the energy storage device includes a first exterior member and a second exterior member. The energy storage device according to claim 4 or 5, wherein at least one of the first exterior member and the second exterior member has a recess formed for housing the electrode body.
  9. A method for manufacturing an energy storage device according to claim 4 or 5, The process includes manufacturing the exterior member for the energy storage device, which is composed of the laminate, The barrier layer contains 50% by mass or more of the recycled aluminum alloy material. A method for manufacturing an energy storage device.

Description

Exterior component for energy storage device, method for manufacturing the exterior component for energy storage device, energy storage device, and method for manufacturing an energy storage device. This invention relates to an exterior component for an energy storage device, a method for manufacturing the exterior component for an energy storage device, an energy storage device equipped with the exterior component, and a method for manufacturing the energy storage device. Patent Document 1 discloses a secondary battery as an example of an energy storage device. In this secondary battery, an electrode body is sealed within a bag made of laminate film. The laminate film includes a water vapor impermeable layer as an example of a barrier layer to suppress the intrusion of water vapor into the bag. The water vapor impermeable layer is made of, for example, an aluminum alloy metal foil. This is a schematic perspective view showing an energy storage device according to Embodiment 1.This is a cross-sectional view showing an example of the layer structure of the exterior member in Figure 1A.This is a schematic plan view illustrating an energy storage device.This is a schematic side view illustrating an energy storage device.This diagram shows a side view of the electrode body with the outer casing wrapped around it during the manufacturing process of an energy storage device according to Embodiment 1.This diagram shows, from below, the state in which the outer casing material is wrapped around the electrode body during the manufacturing process of the energy storage device according to Embodiment 1.This figure schematically shows a portion of the VI-VI cross-section in Figure 2.This is a diagram illustrating the method for forming the second sealing portion.This is a flowchart showing an example of the manufacturing procedure for an energy storage device according to Embodiment 1.This is a schematic plan view showing an energy storage device according to Embodiment 2.This is a schematic side view illustrating an energy storage device.This is a schematic perspective view of the lid.This figure shows a first example in which the cover and electrode terminals are integrally formed.This figure shows a second example in which the cover and electrode terminals are integrally formed.This is a flowchart showing an example of the manufacturing procedure for an energy storage device according to Embodiment 2.This flowchart shows an example of another manufacturing procedure for an energy storage device according to Embodiment 2.This diagram shows the electrode body with the outer covering wrapped around it, as viewed from the side, in Embodiment 3.This figure shows, from below, the state in which the outer casing member is wrapped around the electrode body and the lid is attached to the outer casing member in Embodiment 3.This is a flowchart showing an example of the manufacturing procedure for an energy storage device according to Embodiment 3.This is a schematic plan view showing an energy storage device according to Embodiment 4.This is a schematic side view showing an energy storage device according to Embodiment 4.This diagram shows a modified example, with the outer covering wrapped around the electrode body, viewed from the side.This is a schematic perspective view showing a modified energy storage device.This is a schematic perspective view showing a modified cover and electrode terminals attached to the cover.This figure shows the insertion step in a modified method for manufacturing an energy storage device.This is a schematic perspective view showing a modified cover and electrode terminals attached to the cover.Figure 23 is a schematic perspective view showing the energy storage device with the cover attached.This is a schematic front view showing the lid of another modified example.This is a schematic front view showing the lid of yet another modified example.This is a schematic plan view showing another modified example of an energy storage device.This is a cross-sectional view of yet another modified example of an energy storage device.This figure shows an example of the manufacturing process for another modified version of the energy storage device shown in Figure 30A.This is a perspective view of an energy storage device manufactured through the manufacturing process shown in Figure 30B.This is a perspective view of another modified example of the energy storage device shown in Figure 30A.This diagram shows a side view of an electrical storage device in the manufacturing process of another modified example, where the outer casing is wrapped around the electrode body.This is an enlarged view of the X portion in Figure 31.This is a cross-sectional view of a modified energy storage device.This is a cross-sectional view of a modified energy storage device. The embodiments of the present invention will be described in detail below with reference to the drawings. In the drawings, the same or corresponding parts a