公开(公告)号：US20200381679A1

公开(公告)日：2020-12-03

申请号：US16496546

申请日：2018-03-20

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kenta HIRAKI ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA

IPC: H01M2/02 ,  B32B27/08 ,  B32B27/36 ,  B32B27/32 ,  B32B27/38

Abstract: A packaging material for batteries, which is not susceptible to warping, while having excellent formability. A packaging material for batteries is configured from a laminate that is sequentially provided at least with one or more substrate layers, a barrier layer, a cured resin layer and a thermally fusible resin layer in this order. At least one of the substrate layers is formed of a polybutylene terephthalate film; and the value (X/Y) which is obtained by dividing the puncture strength X (N) of the laminate by the thickness Y (μm) of the polybutylene terephthalate film, the puncture strength X (N) being determined by piercing the laminate from the substrate layer side by a method that complies with the prescription of JIS Z1707 (1997), is 1.02 N/μm or more.

公开(公告)号：US20240297378A1

公开(公告)日：2024-09-05

申请号：US18570835

申请日：2022-06-29

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Atsuko TAKAHAGI ,  Shinji HAYASHI ,  Kenta HIRAKI ,  Masayasu YAMAZAKI

IPC: H01M50/119 ,  C22C21/06 ,  C22F1/047 ,  H01M50/128

CPC classification number: H01M50/119 ,  C22C21/06 ,  C22F1/047 ,  H01M50/128

Abstract: An outer package material for power storage devices, the outer package material being composed of a multilayer body which sequentially includes at least a base material layer, a barrier layer and a thermally fusible resin layer in this order, wherein: the barrier layer contains an aluminum alloy foil that has a composition containing 0.2% by mass to 2.0% by mass of Fe and 0.1% by mass to 5.0% by mass of Mg; and with respect to this aluminum alloy foil, the ratio of the length L1 of a high angle grain boundary to the length L2 of a low angle grain boundary per unit area as determined by a back scattering electron diffraction method satisfies the relational expression L1/L2>3.0.

公开(公告)号：US20220375697A1

公开(公告)日：2022-11-24

申请号：US17788574

申请日：2020-12-25

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Shinji HAYASHI ,  Kenta HIRAKI ,  Daisuke YASUDA ,  Masayasu YAMAZAKI

IPC: H01G11/78 ,  H01M50/10 ,  C22C21/02

Abstract: An exterior material for an electrical storage device has a laminate including at least a base material layer, a barrier layer, and a thermosetting resin layer in this order, the barrier layer including an aluminum alloy foil that satisfies a composition of Si: 0.5 mass % or less, Fe: 0.2-2.0 mass % inclusive, and Mg: 0.1-5.0 mass % inclusive.

公开(公告)号：US20230369689A1

公开(公告)日：2023-11-16

申请号：US18026994

申请日：2021-09-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kenta HIRAKI ,  Chihiro NAKAMURA ,  Miho SASAKI ,  Atsuko TAKAHAGI

IPC: H01M50/129 ,  H01M50/131

CPC classification number: H01M50/129 ,  H01M50/131

Abstract: An exterior material for power storage devices which is formed from at least a layered body comprising a base material layer, a barrier layer, and a heat-fusible resin layer in this order, wherein the base material layer contains a resin film, the resin film has a shrinkage ratio of 1.0% to less than 5.0% when immersed in hot water at 95° C. for 30 minutes, and the resin film has a stress value, at 10% stretching in the tensile test described hereafter, of 100 MPa or higher in both the machine direction and the transverse direction. After storing a sample in a 23° C., 40% RH environment for 24 hours, the tensile test is performed under conditions of a sample width of 6 mm, a gauge length of 35 mm, and a tension rate of 300 mm/min in a 23° C., 40% RH environment, and the stress value at 10% stretching (displacement of 3.5 mm) is measured.

公开(公告)号：US20230022746A1

公开(公告)日：2023-01-26

申请号：US17788678

申请日：2020-12-25

Applicant: MA Aluminum Corporation ,  DAI NIPPON PRINTING CO., LTD.

Inventor： Takashi SUZUKI ,  Masaya ENDO ,  Shinji HAYASHI ,  Kenta HIRAKI ,  Daisuke YASUDA ,  Masayasu YAMAZAKI

IPC: C22C21/08

Abstract: An aluminum alloy foil having a composition contains Si: 0.5 mass % or less, Fe: 0.2 mass % or more and 2.0 mass % or less, Mg: 0.1 mass % or more and 1.5 mass % or less, and Al balance containing inevitable impurities, and if desired, Mn is regulated to 0.1 mass % or less in the inevitable impurities, and preferably, the tensile strength is 110 MPa or more 180 MPa or less, the elongation is 10% or more, and the average crystal grain diameter is 25 μm or less.

公开(公告)号：US20220355585A1

公开(公告)日：2022-11-10

申请号：US17863770

申请日：2022-07-13

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kenta HIRAKI ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA

IPC: B32B27/32 ,  B32B27/08 ,  B32B27/36 ,  B32B27/38

Abstract: A method for producing a battery packaging material, the method including a step of obtaining a laminate by laminating at least a base material layer, a barrier layer, a cured resin layer and a heat-sealable resin layer in this order, wherein at least one layer of the base material layer is formed of a polybutylene terephthalate film, and a value determined by dividing a piercing strength X (N) in the case of piercing the laminate from its base material layer side measured by a method in accordance with a provision of JIS Z1707:1997 by a thickness Y (μm) of the polybutylene terephthalate film is 1.02 N/μm or more.

公开(公告)号：US20210234222A1

公开(公告)日：2021-07-29

申请号：US15734790

申请日：2019-06-20

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kenta HIRAKI ,  Jun TANAKA ,  Takahiro KATO ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA

IPC: H01M50/193 ,  H01M50/547 ,  H01M50/188 ,  H01M10/0525 ,  H01M50/197 ,  H01M50/172 ,  C09J123/26 ,  C09J123/12

Abstract: This adhesive film for a metal terminal is interposed between a metal terminal electrically connected to an electrode of a battery element and a wrapping material sealing the battery element and is provided with at least one resin layer having a polyolefin backbone. When the adhesive film for the metal terminal is measured with a differential scanning calorimeter, a melting peak is observed within the range of 120° C. to 156° C.

公开(公告)号：US20240322307A1

公开(公告)日：2024-09-26

申请号：US18574414

申请日：2022-06-29

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Atsuko TAKAHAGI ,  Daisuke YASUDA ,  Takanori YAMASHITA ,  Shinji HAYASHI ,  Kenta HIRAKI ,  Masayasu YAMAZAKI

IPC: H01M50/129 ,  B32B7/02 ,  B32B15/08 ,  B32B15/085 ,  B32B15/20 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/18 ,  H01M50/119 ,  H01M50/121

CPC classification number: H01M50/129 ,  B32B7/02 ,  B32B15/08 ,  B32B15/085 ,  B32B15/20 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/182 ,  H01M50/119 ,  H01M50/121 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/581 ,  B32B2307/714 ,  B32B2307/7376 ,  B32B2307/746 ,  B32B2311/24 ,  B32B2323/04 ,  B32B2367/00 ,  B32B2377/00 ,  B32B2457/10

Abstract: An outer package material for power storage devices, the outer package material being composed of a multilayer body which sequentially includes at least a base material layer, a barrier layer and a thermally fusible resin layer in this order, wherein: the barrier layer contains an aluminum alloy foil that has a composition containing 0.2% by mass to 2.0% by mass of Fe and 0.1% by mass to 5.0% by mass of Mg; the thermally fusible resin layer is composed of a single layer or a plurality of layers; and a first thermally fusible resin layer that forms a surface of the multilayer body among the thermally fusible resin layers has a logarithmic decrement ΔE of 0.25 or less at 140° C. as determined by rigid pendulum measurement.

公开(公告)号：US20240304904A1

公开(公告)日：2024-09-12

申请号：US18572896

申请日：2022-06-29

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Atsuko TAKAHAGI ,  Shinji HAYASHI ,  Kenta HIRAKI ,  Miho SASAKI ,  Masayasu YAMAZAKI

IPC: H01M50/129 ,  H01M50/105 ,  H01M50/133 ,  H01M50/15 ,  H01M50/188 ,  H01M50/198 ,  H01M50/536

CPC classification number: H01M50/129 ,  H01M50/105 ,  H01M50/133 ,  H01M50/15 ,  H01M50/188 ,  H01M50/198 ,  H01M50/536

Abstract: This power storage device includes an electrode body and an exterior body. The exterior body seals the electrode body. The exterior body is configured from a film-like exterior member. The exterior body includes a first sealed part sealed by joining surfaces which face each other in a state of being wound around the electrode body. The area of a first surface is larger than the area of a second surface. The first sealed part does not overlap the first surface in a plan view. The exterior body is configured from a laminate including at least a base material layer, a barrier layer, and a heat-fusible resin layer in the stated order. The barrier layer includes an aluminum alloy foil satisfying a composition of 0.2-2.0 mass % of Fe, and 0.1-5.0 mass % of Mg.

公开(公告)号：US20230361393A1

公开(公告)日：2023-11-09

申请号：US18027262

申请日：2021-09-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kenta HIRAKI ,  Chihiro NAKAMURA ,  Miho SASAKI ,  Atsuko TAKAHAGI

IPC: H01M50/121 ,  H01M50/131 ,  H01M50/126

CPC classification number: H01M50/121 ,  H01M50/131 ,  H01M50/126

Abstract: A power storage device packaging material includes a laminate including at least a base material layer, a barrier layer, and a heat-sealable resin layer in this order, wherein the base material layer contains a polyester film, and the polyester film has a work hardening exponent of 1.6 or more and 3.0 or less in both longitudinal and width directions, with a difference of 0.5 or less between the work hardening exponents in the longitudinal and width directions, an intrinsic viscosity of 0.66 or more and 0.95 or less, and a rigid amorphous fraction of 28% or more and 60% or less.