公开(公告)号：US11682809B2

公开(公告)日：2023-06-20

申请号：US16755796

申请日：2019-07-02

Applicant: LG Chem, Ltd.

Inventor： Kyung Min Kim ,  Bum Young Jung

IPC: H01M50/124 ,  H01M50/557 ,  B32B15/04 ,  H01M50/178 ,  H01M50/121 ,  H01M50/105 ,  H01M50/536 ,  H01M50/14 ,  H01M50/129 ,  H01M50/128 ,  H01M50/119 ,  H01M50/55 ,  H01M50/562

CPC classification number: H01M50/124 ,  B32B15/04 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/128 ,  H01M50/129 ,  H01M50/1243 ,  H01M50/1245 ,  H01M50/14 ,  H01M50/178 ,  H01M50/536 ,  H01M50/55 ,  H01M50/557 ,  H01M50/562 ,  H01M2220/20 ,  H01M2220/30

Abstract: A pouch-type secondary battery includes: an electrode assembly in which a positive electrode, a separator, and a negative electrode are laminated; and a pouch configured to accommodate the electrode assembly, wherein the pouch includes: a surface protection layer made of a first polymer and formed at an outermost layer; a sealant layer made of a second polymer and formed at an innermost layer; a gas barrier layer made of a first metal and laminated between the surface protection layer and the sealant layer; and a metal foil layer made of a second metal, laminated between the surface protection layer and the sealant layer, and connected to the negative electrode of the electrode assembly.

公开(公告)号：US11646466B2

公开(公告)日：2023-05-09

申请号：US16635496

申请日：2019-03-22

Applicant: TDK CORPORATION

Inventor： Takamasa Minami ,  Kazuma Akimoto ,  Hideaki Seki

IPC: H01M50/124 ,  H01M10/0587 ,  H01M50/133 ,  H01M50/129 ,  H01M50/121 ,  H01M50/119 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0563 ,  H01M50/46 ,  H01M50/557 ,  H01M50/55 ,  H01M4/02

CPC classification number: H01M50/124 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0563 ,  H01M10/0587 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/1245 ,  H01M50/133 ,  H01M50/46 ,  H01M50/55 ,  H01M50/557 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: A non-aqueous electrolytic liquid secondary battery wherein a potential of a metal layer in an exterior body is kept high, and corrosion can be suppressed, wherein an average thickness t1 of a first part of an exterior body covering a first side surface where a negative and a positive electrode terminal of a power generation element exist is different from an average thickness t2 of a second part of the exterior body covering a second side surface that intersects the first. In plan view of the power generation element from a lamination direction, in a second direction orthogonal to a first direction in which the electrode terminals extend, the relationship of t1 t2 is satisfied when the width of the negative electrode is smaller than the positive.

公开(公告)号：US20240339702A1

公开(公告)日：2024-10-10

申请号：US18628755

申请日：2024-04-07

Applicant: Youlchon Chemical Co., Ltd.

Inventor： Nok Jung Song ,  Hee Sik Han ,  Huihun Kim ,  Ji Min Lee ,  Han Chul Park ,  Doohee Lee ,  Geon Ryong Kim ,  Sung Chul Shin ,  Moonkyu Song

IPC: H01M50/136 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

CPC classification number: H01M50/136 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

Abstract: The present disclosure is directed to a film for a cell pouch and a manufacturing method thereof. A cell pouch film and a manufacturing method thereof according to an example embodiment of the present disclosure has good mechanical strength, low deviation in mechanical strength due to low stress on the film, and good formability.

公开(公告)号：US12107279B2

公开(公告)日：2024-10-01

申请号：US16499557

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Soo Ji Hwang ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Yong Su Choi ,  Na Yoon Kim ,  Min Hyeong Kang ,  Yong Kim

IPC: H01M50/124 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131 ,  H01M50/55 ,  H01M50/557

CPC classification number: H01M50/124 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131 ,  H01M50/55 ,  H01M50/557

Abstract: A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.

公开(公告)号：US12065591B2

公开(公告)日：2024-08-20

申请号：US17144147

申请日：2021-01-08

Applicant: Resonac Packaging Corporation

Inventor： Keitaro Kawakita ,  Yuji Minamibori

IPC: C09J175/06 ,  B32B7/12 ,  B32B15/08 ,  B32B15/085 ,  B32B15/088 ,  B32B15/20 ,  B32B27/32 ,  B32B27/34 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/133

CPC classification number: C09J175/06 ,  B32B7/12 ,  B32B15/08 ,  B32B15/085 ,  B32B15/088 ,  B32B15/20 ,  B32B27/32 ,  B32B27/34 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/133 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/306 ,  B32B2307/4026 ,  B32B2307/408 ,  B32B2307/54 ,  B32B2457/10

Abstract: A packaging material for molding includes a heat resistant resin layer as an outer layer; a thermoplastic resin layer as an inner layer; a metal foil layer disposed between the heat resistant resin layer and the thermoplastic resin layer; a first adhesive layer disposed between the metal foil layer and the heat resistant resin layer; and a second adhesive layer disposed between the metal foil layer and the thermoplastic resin layer. The first adhesive layer is composed of a color adhesive agent composition containing a color pigment and an adhesive agent. The color adhesive agent composition contains a color pigment of 2 mass % or more and less than 5 mass % with respect to a solid component. The first adhesive layer is a coating of the color adhesive agent composition of 5 g/m2 to 10 g/m2. The first adhesive layer contains a color pigment of 0.25 g/m2 to 0.49 g/m2.

公开(公告)号：US20240243394A1

公开(公告)日：2024-07-18

申请号：US18585881

申请日：2024-02-23

Applicant: SHOWA DENKO PACKAGING CO., LTD.

Inventor： Wei HE ,  Hiroaki ITO ,  Takashi NAGAOKA ,  Makoto KARATSU

IPC: H01M50/124 ,  B32B1/08 ,  B32B7/027 ,  B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/088 ,  B32B15/09 ,  B32B15/20 ,  B32B27/06 ,  B32B27/16 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/02 ,  B32B37/06 ,  B32B37/12 ,  B32B37/24 ,  H01M10/052 ,  H01M10/0525 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131

CPC classification number: H01M50/124 ,  B32B1/08 ,  B32B7/027 ,  B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/088 ,  B32B15/09 ,  B32B15/20 ,  B32B27/06 ,  B32B27/16 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/02 ,  B32B37/06 ,  B32B37/12 ,  H01M10/0525 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131 ,  B32B2037/1253 ,  B32B2037/243 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/306 ,  B32B2307/31 ,  B32B2307/50 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/714 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2307/732 ,  B32B2307/736 ,  B32B2307/738 ,  B32B2309/02 ,  B32B2309/105 ,  B32B2311/24 ,  B32B2333/04 ,  B32B2375/00 ,  B32B2377/00 ,  B32B2439/00 ,  B32B2439/70 ,  B32B2439/80 ,  B32B2457/10 ,  B32B2553/00 ,  B32B2605/00 ,  H01M10/052 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30

Abstract: The packaging material includes a heat-resistant resin layer 2 as an outer side layer, a heat-fusible resin layer 3 as an inner side layer, and a metal foil layer 4 arranged between these layers. The heat-resistant resin layer 2 is made of a heat-resistant resin film having a hot water shrinkage rate of 1.5% to 12% and the heat-resistant resin layer 2 and the metal foil layer 4 are adhered via an outer side adhesive layer 5. The adhesive layer 5 is formed by an urethane adhesive agent containing a polyol, a polyfunctional isocyanate compound, and an aliphatic compound containing a plurality of functional groups capable of reacting with an isocyanate group in one molecule. With this, a packaging material can be provided in which excellent formability can be secured and delamination can be sufficiently suppressed without causing pinholes, etc., even when deep depth drawing is performed.

公开(公告)号：US20240222749A1

公开(公告)日：2024-07-04

申请号：US18397945

申请日：2023-12-27

Applicant: Youlchon Chemical Co., Ltd.

Inventor： Nok Jung Song ,  Hee Sik Han ,  Jee Eun Jang ,  Huihun Kim

IPC: H01M50/131 ,  H01M10/04 ,  H01M50/105 ,  H01M50/129

CPC classification number: H01M50/131 ,  H01M10/049 ,  H01M50/105 ,  H01M50/129 ,  H01M2220/10 ,  H01M2220/20

Abstract: A pouch film for a secondary battery, wherein at least an outer layer, a barrier layer, and a sealant layer are structured in this order, the sealant layer includes an extrusion (EC) layer and a polypropylene (PP) layer below the extrusion (EC) layer, having excellent sealing strength at ambient and high temperatures, and having excellent sealing strength maintenance properties at ambient and especially high temperatures, a method for preparing the pouch film, a secondary battery using the pouch film, and a method for manufacturing the same are disclosed. The pouch film for the secondary battery has excellent high temperature long-term reliability in battery pack manufacturing, and can be useful for medium to large-sized batteries.

公开(公告)号：US20240194986A1

公开(公告)日：2024-06-13

申请号：US18286014

申请日：2022-04-07

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Ai OKANO ,  Naoya TAKEUCHI ,  Hiroki TSUNEDA ,  Miho SASAKI

IPC: H01M50/141 ,  H01M50/129 ,  H01M50/136

CPC classification number: H01M50/141 ,  H01M50/129 ,  H01M50/136

Abstract: An exterior material for a power storage device, the exterior material being constituted by a laminated body that includes at least a base material layer, a barrier layer, and a heat-sealable resin layer in this order from the outer side. The heat-sealable resin layer is formed from a polybutylene terephthalate film. The exterior material has a water-absorbing layer on the inner side than the barrier layer, and that contains a water-absorbing agent.

公开(公告)号：US20240170771A1

公开(公告)日：2024-05-23

申请号：US18426377

申请日：2024-01-30

Applicant: Resonac Packaging Corporation

Inventor： Keitaro KAWAKITA

IPC: H01M50/129 ,  H01M50/119 ,  H01M50/121 ,  H01M50/124 ,  H01M50/136

CPC classification number: H01M50/129 ,  H01M50/119 ,  H01M50/121 ,  H01M50/1245 ,  H01M50/136

Abstract: In a battery packaging material in which a substrate protective layer, a substrate layer, a barrier layer, and a heat-fusible resin layer are laminated in this order, the substrate protective layer is formed of a resin composition containing a resin component and solid fine particles. The Young's modulus of the substrate protective layer measured by a method specified in JIS K7127 is 0.5 MPa to 3 MPa, and the tensile strength at 40% elongation measured by a method specified in JIS K7127 is 5 MPa to 20 MPa.

公开(公告)号：US20240162543A1

公开(公告)日：2024-05-16

申请号：US18388365

申请日：2023-11-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi CHIHARA ,  Yutaka HIDAKA ,  Kenichi KAKISHITA

IPC: H01M50/184 ,  H01M10/0585 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/191 ,  H01M50/193 ,  H01M50/197 ,  H01M50/207

CPC classification number: H01M50/184 ,  H01M10/0585 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/191 ,  H01M50/193 ,  H01M50/197 ,  H01M50/207

Abstract: A laminated battery has a battery element and a laminate exterior body that seals the battery element. The laminate exterior body includes at least a resin layer and a metal layer that are laminated. The battery element includes substantially right-angled portions, and horizontal portions that are horizontal shaped. At 80% or more of areas of the metal layer that face the substantially right-angled portions of the battery element, a thickness T1 of the metal layer, with respect to a thickness T2 of the metal layer of the laminate exterior body that faces the horizontal portions of the battery element, satisfies a relationship of formula |T1−T2|/T2×100(%)≤10%.