公开(公告)号：US20210249730A1

公开(公告)日：2021-08-12

申请号：US17270321

申请日：2019-08-20

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Miho SASAKI ,  Atsuko TAKAHAGI

IPC: H01M50/325 ,  H01M10/0525 ,  H01M50/183 ,  H01M50/105 ,  F16K27/02

Abstract: A valve device is a valve device for attaching to a storage body. This valve device is provided with a valve device main body and an adhesive member. The valve device main body is configured to reduce pressure inside the storage body in the case where the pressure increases due to gas produced inside the storage body. The adhesive member is adhered to an outer periphery of the valve device main body, and is configured to adhere to the storage body. A hole through which the gas passes is formed in an end face of the valve device main body.

公开(公告)号：US20210249729A1

公开(公告)日：2021-08-12

申请号：US17059960

申请日：2019-05-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Youichi MOCHIZUKI ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA ,  Miho SASAKI

IPC: H01M50/317 ,  H01M50/121 ,  H01M50/124 ,  H01M50/186 ,  B29C65/02

Abstract: A battery includes a battery element, a housing body, and a valve device. The housing body houses the battery element. The valve device is in communication with the inside of the housing body. Heat-sealable resin layers face each other in a peripheral edge portion of the housing body. A joined edge portion in which the mutually facing heat-sealable resin layers are fused together is formed in the peripheral edge portion of the housing body. The valve device is configured to reduce an internal pressure of the housing body if the internal pressure is increased due to gas generated in the housing body. The valve device includes a first portion that is located on an outer side of an edge of the joined edge portion and a second portion that is sandwiched between the heat-sealable resin layers in the joined edge portion.

公开(公告)号：US20210218106A1

公开(公告)日：2021-07-15

申请号：US15733842

申请日：2019-05-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Youichi MOCHIZUKI ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA ,  Miho SASAKI

IPC: H01M50/333

Abstract: A battery includes a battery element, a housing body, and a valve device. The housing body is constituted by at least one laminate and includes an interior space in which the battery element is housed, a first housing portion that covers the interior space from a first side, and a second housing portion that covers the interior space from a second side. The valve device is attached to the housing body and can make interior space of housing body be in communication with an external space. A joined edge portion is formed in housing body as a result of the first and second housing portion being fused along respective peripheral edge portions. The valve device is sandwiched between the first and second housing portion in the joined edge portion, and an inner end of the valve device protrudes from an inner edge of joined edge portion toward the interior space.

公开(公告)号：US20240405389A1

公开(公告)日：2024-12-05

申请号：US18698513

申请日：2022-10-06

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Takahiro KATO ,  Miho SASAKI ,  Shinji HAYASHI

IPC: H01M50/567 ,  C09J7/30 ,  H01M50/178 ,  H01M50/186 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198

Abstract: An adhesive film for metal terminals is interposed between a metal terminal that is electrically connected to an electrode for a power storage device element, and a power storage device exterior material that seals the power storage device element. The adhesive film for metal terminals is constituted of a laminate including at least a resin layer A and a resin layer B. The resin layer A has a melting peak temperature of 105-130° C. The resin layer B has a cross-sectional hardness, measured in an environment with a temperature of 110° C., of at least 15 N/mm2.

公开(公告)号：US20240380037A1

公开(公告)日：2024-11-14

申请号：US18691543

申请日：2022-09-15

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsubasa KAGATA ,  Naoto TABUCHI ,  Miho SASAKI ,  Ai OKANO

IPC: H01M50/124 ,  H01M50/121 ,  H01M50/126 ,  H01M50/131

Abstract: An exterior material for a power storage device, said exterior material constituted from a laminate that at least comprises a base material layer, a barrier layer, and a heat-fusible resin layer in the stated order, wherein the heat-fusible resin layer includes a film, and the film has a tensile elongation at break in a 150° C. environment of 750% or more.

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：US20240204337A1

公开(公告)日：2024-06-20

申请号：US18590074

申请日：2024-02-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Youichi MOCHIZUKI ,  Atsuko TAKAHAGI ,  Rikiya YAMASHITA ,  Miho SASAKI

IPC: H01M50/325 ,  H01M10/0525 ,  H01M50/105 ,  H01M50/124

CPC classification number: H01M50/325 ,  H01M50/105 ,  H01M50/124 ,  H01M10/0525

Abstract: A battery includes a battery element, housing body, and valve device. The housing body has a laminate including a base material, barrier, and heat-sealable resin layers. The valve device is in communication with the housing body inside. A joined edge portion in which the mutually facing heat-sealable resin layers are fused together is formed in a housing body peripheral edge portion. The valve device includes first and second portions. A valve mechanism reduces the housing body internal pressure if it is increased due to gas generated in the housing body is formed in the first portion. An air passage guides gas generated in the housing body toward the valve mechanism is formed in the second portion. The first portion is located on a joined edge portion edge outer side. At least a portion of the second portion is sandwiched between the heat-sealable resin layers in the joined edge portion.

公开(公告)号：US20240186628A1

公开(公告)日：2024-06-06

申请号：US18287694

申请日：2022-04-27

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Miho SASAKI ,  Takanori YAMASHITA ,  Ryo FUJIWARA

IPC: H01M50/197 ,  B32B3/04 ,  B32B7/027 ,  B32B7/14 ,  B32B27/08 ,  B32B27/30 ,  C09J5/06 ,  C09J7/35 ,  H01G11/78 ,  H01M50/105 ,  H01M50/121 ,  H01M50/126 ,  H01M50/131 ,  H01M50/193

CPC classification number: H01M50/197 ,  B32B3/04 ,  B32B7/027 ,  B32B7/14 ,  B32B27/08 ,  B32B27/30 ,  C09J5/06 ,  C09J7/35 ,  H01M50/105 ,  H01M50/121 ,  H01M50/126 ,  H01M50/131 ,  H01M50/193 ,  B32B2250/24 ,  B32B2307/31 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2307/7376 ,  B32B2457/10 ,  B32B2457/16 ,  C09J2203/326 ,  C09J2203/33 ,  C09J2301/1242 ,  C09J2301/304 ,  C09J2400/228 ,  C09J2423/04 ,  C09J2423/10 ,  C09J2467/006 ,  H01G11/78

Abstract: An adhesive film used for an electricity storage device, wherein the electricity storage device is accommodated in a package formed by an electricity storage device exterior material, the electricity storage device exterior material is constituted by at least a laminate including a base material layer, a barrier layer, and a heat-fusible resin layer from the outside, the electrical storage device element is accommodated in the package by heat fusing the heat-fusible resin layers of the electricity storage device exterior material to each other, the adhesive film is used by being interposed between the heat-fusible resin layers at a position where the heat-fusible resin layers are heat-fused to each other, and the adhesive film has a multilayer structure and includes at least one resin layer L having a melting peak temperature lower by 5° C. or more than that of the heat-fusible resin layers of the electricity storage device exterior material.

公开(公告)号：US20230395930A1

公开(公告)日：2023-12-07

申请号：US18032249

申请日：2021-10-15

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Miho SASAKI ,  Tomohiro SASAKI

IPC: H01M50/333 ,  H01M50/30

CPC classification number: H01M50/333 ,  H01M50/394 ,  H01M2200/20

Abstract: A valve structure for a power storage device includes a passage that communicates the interior of a container housing a power storage device element with the exterior of the container, and a check valve disposed to block the passage and configured to open when the internal pressure of the container increases due to gas produced inside the container and pass the gas from the internal side of the container to the external side, the check valve including a valve seat and a valve body, and the valve structure including a liquid disposed to come in contact with the valve seat and the valve body.

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.