公开(公告)号：US20250062463A1

公开(公告)日：2025-02-20

申请号：US18721285

申请日：2023-07-19

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jeong Eon Park ,  Roun Kim ,  Wook Hee Jang

IPC: H01M50/186 ,  C09J133/08 ,  H01M10/0587 ,  H01M50/184 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198

Abstract: A secondary battery includes an electrode assembly, an electrolyte solution, a seal tape, and a can. The electrode assembly has a structure in which a positive electrode, a negative electrode, and a separator are in a wound state. The seal tape includes a base and an adhesive layer provided on one surface of the base. The can accommodates the electrode assembly and the electrolyte solution. The negative electrode is disposed along an outer circumferential surface of the electrode assembly and the seal tape is provided on the outer circumferential surface. The adhesive layer is configured to expand when in contact with the electrolyte solution.

公开(公告)号：US20240429506A1

公开(公告)日：2024-12-26

申请号：US18589417

申请日：2024-05-13

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Hun-Hee Lim ,  Sang-Hun Kim ,  Min-Hyeong Kang ,  Hyung-KYUN Yu

IPC: H01M50/178 ,  H01M50/188 ,  H01M50/197 ,  H01M50/30

Abstract: Disclosed is a secondary battery including: an electrode assembly including electrode sheets and a separator interposed between the electrode sheets; a pouch-like battery casing in which the electrode assembly is received; an electrode lead connected to the electrode assembly and protruding out from the battery casing; and a lead film covering the electrode lead and interposed between the electrode lead and the battery casing, wherein the lead film includes an outer layer covering the electrode lead and an inner layer disposed inside of the outer layer, and the inner layer includes a material having a higher air permeability as compared to the outer layer.

公开(公告)号：US12084562B2

公开(公告)日：2024-09-10

申请号：US17416961

申请日：2019-11-25

Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD. ,  TOYO SEIKAN CO., LTD.

Inventor： Tomokazu Kobayashi ,  Daisuke Imoda ,  Shuji Nakano

IPC: H01M50/193 ,  C08K3/08 ,  C08K5/098 ,  C08K9/04 ,  H01M10/0562 ,  H01M10/52 ,  H01M50/141 ,  H01M50/191 ,  H01M50/195 ,  H01M50/197

CPC classification number: C08K9/04 ,  C08K3/08 ,  C08K5/098 ,  H01M10/0562 ,  H01M10/52 ,  H01M50/141 ,  H01M50/191 ,  H01M50/193 ,  H01M50/195 ,  H01M50/197 ,  C08K2003/0806 ,  H01M2300/0068

Abstract: A sealer for use in an all-solid-state secondary battery provided with a sulfur-containing solid electrolyte, characterized in that the sealer contains a resin and a particulate fatty acid metal salt dispersed in the resin, and the particulate fatty acid metal salt is a particulate fatty acid metal salt in which a fatty acid is coordinated on the surfaces of the metal particles having a mean particle diameter of not more than 1000 nm. The all-solid-state secondary battery is capable of suppressing the generation of the hydrogen sulfide.

公开(公告)号：US20240222755A1

公开(公告)日：2024-07-04

申请号：US18527239

申请日：2023-12-02

Applicant: Youlchon Chemical Co., Ltd.

Inventor： Nok Jung Song ,  Hee Sik Han ,  Jee Eun Jang ,  Yoohan Kim ,  Doohee Lee

IPC: H01M50/197 ,  H01M50/105 ,  H01M50/124 ,  H01M50/186 ,  H01M50/193 ,  H01M50/198

CPC classification number: H01M50/197 ,  H01M50/105 ,  H01M50/124 ,  H01M50/186 ,  H01M50/193 ,  H01M50/198

Abstract: Disclosed is a secondary battery pouch film including a layered structure wherein at least an outer layer, a barrier layer, and a sealant layer are structured in that order, wherein the sealant layer includes an extrusion (EC) layer and a polypropylene (PP) layer below the extrusion (EC) layer, wherein a thickness ratio of the polypropylene (PP) layer to the sealant layer is more than 0.5, wherein an upper yield strength (N/mm2) in an MD direction of the sealant layer is 17.50 to 19.99, and an upper yield strength (N/mm2) in a TD direction thereof is 17.00 to 19.99, wherein a glass transition temperature (Tg) of the sealant layer is −20° C. to −10° C. The pouch film not only has excellent sealing strength at ambient temperature and high temperature, but also has excellent sealing strength maintenance at ambient temperature and especially at high temperature.

公开(公告)号：US20240097251A1

公开(公告)日：2024-03-21

申请号：US18003714

申请日：2022-03-29

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyun Ki JUNG ,  Byung Chul PARK ,  Gun Gue PARK ,  Gwan Hyeon YU ,  Jin Young MOON ,  Kyung Rok LEE ,  Myung Seob KIM ,  Sung Gwi KO ,  Woo Hyuk CHOI

IPC: H01M50/186 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/184 ,  H01M50/197 ,  H01M50/198 ,  H01M50/545 ,  H01M50/559 ,  H01M50/564 ,  H01M50/588 ,  H01M50/593

CPC classification number: H01M50/186 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/184 ,  H01M50/197 ,  H01M50/198 ,  H01M50/545 ,  H01M50/559 ,  H01M50/564 ,  H01M50/588 ,  H01M50/593

Abstract: An embodiment of the present invention relates to a cylindrical secondary battery in which a positive electrode terminal is adhered and fixed to a cylindrical can by an insulating sheet, and thus sealing between the cylindrical can and the positive electrode terminal can be facilitated due to an increased contact area. Disclosed in an embodiment is a cylindrical secondary battery comprising an electrode assembly that has a positive electrode plate, a separator, and a negative electrode plate, a cylindrical can that has the electrode assembly accommodated therein and a lower end thereof open, and is electrically connected to the negative electrode plate, a positive electrode terminal that penetrates the upper surface of the cylindrical can to be electrically connected to the positive electrode plate, a cap plate that seals the lower end of the cylindrical can, and an insulation sheet that adheres the lower part of the positive electrode terminal to the lower surface of the upper surface part of the cylindrical can to seal the inside of the cylindrical can.

公开(公告)号：US11862801B1

公开(公告)日：2024-01-02

申请号：US16108503

申请日：2018-08-22

Applicant: Apple Inc.

Inventor： Qingcheng Zeng

IPC: H01M4/66 ,  H01M10/0525 ,  H01M10/0585 ,  H01M4/62 ,  H01M50/40 ,  H01M50/197 ,  H01M50/534 ,  H01M4/02

CPC classification number: H01M4/661 ,  H01M4/621 ,  H01M4/624 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/197 ,  H01M50/40 ,  H01M50/534 ,  H01M2004/027 ,  H01M2004/028

Abstract: Batteries according to embodiments of the present technology may include a battery cell having a first current collector including a polymer and a metal at least partially disposed about surfaces of the polymer. An edge region of the first current collector may be maintained free of the metal on a first surface of the first current collector. The battery cell may include a second current collector. The battery cell may also include a separator disposed between the first current collector and the second current collector. The separator may include a polymer, and the separator and the first current collector may be laminated proximate the edge region of the first current collector along the first surface of the first current collector.

公开(公告)号：US11705594B2

公开(公告)日：2023-07-18

申请号：US16636748

申请日：2018-07-31

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masaki Kaga ,  Hirotaka Mizuhata ,  Shinobu Takenaka

IPC: H01M4/02 ,  H01M12/06 ,  H01M12/08 ,  H01M50/46 ,  H01M50/557 ,  H01M50/178 ,  H01M50/55 ,  H01M50/627 ,  H01M50/186 ,  H01M50/193 ,  H01M50/198 ,  H01M50/197

CPC classification number: H01M12/06 ,  H01M12/08 ,  H01M50/178 ,  H01M50/186 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198 ,  H01M50/46 ,  H01M50/55 ,  H01M50/557 ,  H01M50/627

Abstract: A metal-air cell comprises a negative electrode, a negative electrode case housing the negative electrode, sealed while a lead of the negative electrode extends from the negative electrode case, including a separator that forms at least part of the negative electrode case, an air electrode facing the negative electrode across the separator, and a cell case housing the negative electrode case and the air electrode and sealed while the lead of the negative electrode expands from the cell case and a lead of the air electrode expands from the cell case.

公开(公告)号：US20230163388A1

公开(公告)日：2023-05-25

申请号：US17914922

申请日：2021-04-01

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Shinji HAYASHI ,  Yoichi MOCHIZUKI

IPC: H01M50/193 ,  H01M50/564 ,  H01M50/172 ,  H01M50/197

CPC classification number: H01M50/193 ,  H01M50/564 ,  H01M50/172 ,  H01M50/197

Abstract: An adhesive film for a metal terminal, interposed between a metal terminal electrically connected to an electrode of a power storage device element and a power storage device packaging material for sealing the power storage device element, wherein the adhesive film for a metal terminal includes a laminate sequentially including a first polyolefin layer on the metal terminal side, a base material, and a second polyolefin layer on the power storage device packaging material side, the laminate has a first adhesive layer between the first polyolefin layer and the base material, a second adhesive layer between the second polyolefin layer and the base material, or both the first adhesive layer and the second adhesive layer, the base material has a melting peak temperature of 135° C. or more, and at least one of the first adhesive layer and the second adhesive layer has a melting peak temperature of 100° C. or less.

公开(公告)号：US20220127498A1

公开(公告)日：2022-04-28

申请号：US17428823

申请日：2020-03-16

Applicant: SHOWA DENKO K.K.

Inventor： Kazuhiko OOGA ,  Takeshi KAWAMOTO ,  Kai SUZUKI ,  Ryunosuke YAMAMOTO

IPC: C09J7/29 ,  B32B15/20 ,  B32B27/32 ,  H01M50/197 ,  B32B15/085 ,  B32B7/12 ,  C09J7/38

Abstract: Provided are an outer package material that is for electricity storage devices such as batteries and has such a sufficient anti-electrolytic solution property that the time-dependent reduction of the adhesive strength between a metal foil layer and a sealant layer by an electrolytic solution is suppressed over a long time and a composition for adhesives for giving the outer package material. In an outer package material that is for electricity storage devices and has a structure in which at least a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and a sealant layer are stacked in sequence, a composition containing an isocyanato group and a (meth) acryloyl group and further containing an acid-modified polyolefin (component 1), an active energy ray polymerization initiator (component 3), and a solvent (component 4) is used as a composition for adhesives to form the second adhesive layer.

公开(公告)号：US20210399374A1

公开(公告)日：2021-12-23

申请号：US17339014

申请日：2021-06-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryo KAGAMI

IPC: H01M50/197 ,  H01M10/04 ,  H01M10/0585 ,  H01M50/124 ,  H01M50/553

Abstract: Provided is a technique capable of suppressing movement of an electrode body inside an exterior body. According to the technique disclosed herein, a sealed battery is provided, which includes an electrode body having a wide face having a rectangular shape, an exterior body made of a laminated film, and positive electrode and negative electrode current collector terminals. The exterior body includes a housing part housing the electrode body, and a sealed part formed around the housing part to isolate the inside and the outside of the exterior body from each other. The housing part has a flat face facing the wide face of the electrode body and four side walls corresponding to four sides of the wide face respectively, the four side walls being formed so as to rise from the sealed part toward the flat face. A pair of the side walls corresponding to long sides of the wide face curves toward the electrode body and inward of the exterior body so as to closely approach the electrode body.