公开(公告)号：US20230352747A1

公开(公告)日：2023-11-02

申请号：US18332486

申请日：2023-06-09

申请人： Furukawa Electric Co., Ltd. ,  The Furukawa Battery Co., Ltd.

发明人： Hiroki Tanaka ,  Yasuo Nakajima ,  Kenichi Suyama ,  Akira Tanaka

IPC分类号： H01M4/68 ,  H01M50/198 ,  H01M10/18

CPC分类号： H01M10/18 ,  H01M4/685 ,  H01M50/198

摘要： A bipolar storage battery includes a bipolar electrode including a positive electrode, a negative electrode, and a bipolar plate provided with the positive electrode on one surface and the negative electrode on another surface. The bipolar storage battery includes an adhesive provided between the one surface of the bipolar plate and the positive electrode to bond the positive electrode to the bipolar plate, and the adhesive is a liquid gasket. This configuration can provide a bipolar storage battery in which, even if corrosion by sulfuric acid contained in an electrolytic solution causes a growth in a positive electrode, the electrolytic solution is prevented from easily entering each part such as an interface between the positive electrode, an adhesive, and a communication hole, and battery performance is less likely to deteriorate.

公开(公告)号：US20230216120A1

公开(公告)日：2023-07-06

申请号：US18181809

申请日：2023-03-10

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Takeru USHIJIMA ,  Tomihiko Yanagiguchi ,  Takahisa Aoyama ,  Jihong Liu ,  Masamichi Sukegawa ,  Hayato Tsuda

IPC分类号： H01M50/186 ,  H01M50/193 ,  H01M50/198 ,  H01M50/107 ,  H01M50/171 ,  F16J15/10

CPC分类号： H01M50/186 ,  H01M50/193 ,  H01M50/198 ,  H01M50/107 ,  H01M50/171 ,  F16J15/102

摘要： A sealing member is one used for a cylindrical lithium-ion battery. The sealing member is interposed between a bottom-closed cylindrical case and a cap, is made of perfluoropolymer, and has dimensions that meet the following relational expressions: when an axial distance from a cap upper surface to a leading end portion in a case is defined as HC, an axial distance from the cap upper surface to a leading end portion in the sealing member is defined as HG, a thickness of the sealing member is defined as TG, a value of TG divided by HG is defined as X (=TG/HG), and a value of HG divided by HC is defined as Y (=HG/HC),


X>0.800TG−0.324  (1)



Y 0.594X2−1.176X+0.913  (3).

公开(公告)号：US20230070655A1

公开(公告)日：2023-03-09

申请号：US17801357

申请日：2021-12-21

申请人： LG Energy Solution, Ltd.

发明人： Minkyu Min ,  Daehong Kim ,  Gi Man Kim

IPC分类号： H01M50/188 ,  H01M50/198 ,  H01M50/502

摘要： A device for manufacturing a battery cell according to one embodiment of the present disclosure includes a sealing tool that forms a sealing part on the outer peripheral surface of a battery case to which an electrode assembly is mounted, wherein the sealing tool comprises a sealing surface that is brought into contact with the outer peripheral surface of the battery case, and wherein the sealing surface comprises a central surface and an inclined surface formed on at least one side of the central surface.

公开(公告)号：US20220336917A1

公开(公告)日：2022-10-20

申请号：US17719749

申请日：2022-04-13

申请人： LG Energy Solution, Ltd.

发明人： Hun-Hee Lim ,  Sang-Hun Kim ,  Min-Hyeong Kang ,  Dae-Woong Song ,  Hyung-Kyun Yu ,  Soo-Ji Hwang

IPC分类号： H01M50/375 ,  H01M50/342 ,  H01M50/193 ,  H01M50/198

摘要： Disclosed herein is a secondary battery having a vent member. The secondary battery may include an electrode assembly to which an electrode lead is attached, a battery case including an accommodation portion to receive the electrode assembly therein such that a portion of the electrode lead may extend outside the battery case, a lead film disposed around an outer surface of the electrode lead, and a vent member. The battery case may include a sealing portion containing a sealant resin to form a seal at least partially around the electrode assembly. The lead film may be interposed between the electrode lead and the sealing portion. The vent member may contain a vent resin having a lower melting point than the sealant resin. The vent member may at least partially overlap or contact the lead film.

公开(公告)号：US20220209349A1

公开(公告)日：2022-06-30

申请号：US17565905

申请日：2021-12-30

申请人： SAMSUNG SDI CO., LTD.

发明人： Nohyun KWAG

IPC分类号： H01M50/213 ,  H01M50/284 ,  H01M10/6556 ,  H01M50/198

摘要： A battery pack including battery cells including a first end portion and a second end portion in a length direction thereof; a cell holder having a first surface through which portions of the first end portions are exposed in the length direction; a circuit board having a first surface through which the portions of the first end portions and a portion of the first surface of the cell holder are exposed; measurement members connecting the battery cells to the circuit board; and a photocurable adhesive surrounding the measurement members, wherein the first end portions, the first surface of the cell holder, and the first surface of the circuit board are arranged in a stepped manner at least partially exposed to an outside of the circuit board in the length direction of the battery cells and are at least partially covered by the photocurable adhesive.

公开(公告)号：US20220200058A1

公开(公告)日：2022-06-23

申请号：US17692748

申请日：2022-03-11

申请人： BYD COMPANY LIMITED

发明人： Jianjun WANG ,  Bingfei HUI ,  Zhixin JIANG ,  Xiaoqiang YIN

IPC分类号： H01M10/0585 ,  H01M50/198

摘要： A cell includes a positive electrode plate, a negative electrode plate, and a separator. An insulating adhesive tape is attached to the positive electrode plate. A first adhesive-tape surface of the insulating adhesive tape is disposed on a same side as a first positive-electrode-plate surface of the positive electrode plate. The first positive-electrode-plate surface is arranged between the first adhesive-tape surface and the second adhesive-tape surface in the first direction. The second adhesive-tape surface is arranged between the first positive-electrode-plate surface and the second positive-electrode-plate surface in the first direction. The insulating adhesive tape extends from the first positive-electrode-plate end to the second positive-electrode-plate end in the second direction. A battery module, a battery pack, and a vehicle including same are also provided.

公开(公告)号：US20220059891A1

公开(公告)日：2022-02-24

申请号：US17406082

申请日：2021-08-19

申请人： SHOWA DENKO PACKAGING CO., LTD.

发明人： Yuji MINAMIBORI

IPC分类号： H01M50/193 ,  H01M50/122 ,  H01M50/198 ,  H01M50/195 ,  B32B27/08 ,  B32B27/32

摘要： A packaging material for a battery includes a base material layer as an outer layer, a sealant layer as an inner layer, and a barrier layer provided between the base material layer and the sealant layer. The sealant layer is composed of a single layer or a multi-layer. The sealant layer includes a first sealant layer serving as an innermost layer made of a propylene-based resin containing an ethylene-propylene copolymer. In the ethylene-propylene copolymer, a ratio Mw/Mn of a weight average molecular weight Mw to a number average molecular weight Mn, measured by a gel permeation chromatography (GPC), is 1 to 7, a melt flow rate measured at 230° C. at a load of 2.16 kg based on JIS K7210 is 5 g/10 min to 30 g/10 min, and a melting point calculated by a differential scanning calorimetry analysis is 120° C. to 135° C.

公开(公告)号：US20210126312A1

公开(公告)日：2021-04-29

申请号：US17078195

申请日：2020-10-23

申请人： KOREA ALUMINIUM CO.,LTD

发明人： Chung Hyeon HEO ,  Yong Soon PARK ,  Tae Woon KANG

IPC分类号： H01M50/198

摘要： The present application relates to a secondary battery pouch film containing graphene and a method for manufacturing the secondary battery pouch film.

公开(公告)号：US20210126311A1

公开(公告)日：2021-04-29

申请号：US16605334

申请日：2018-10-10

申请人： LG CHEM, LTD.

发明人： Wook Hee JANG ,  Sang Sok JUNG ,  Sangjoon PARK ,  Roun KIM ,  Gilyoung LEE

IPC分类号： H01M50/197 ,  H01M50/193 ,  H01M50/191 ,  H01M50/198 ,  H01M50/195 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/653 ,  H01M10/654

摘要： A battery cell having an electrode main body, in which a positive electrode and a negative electrode, each having an electrode mixture is coated on at least one surface of a metallic current collector, and a separation film interposed between the positive electrode and the negative electrode are wound together, a metal can, which accommodates the electrode main body together with an electrolyte solution; and a sealing tape attached to an exterior surface of the electrode main body so as to fix a distal end portion of the electrode main body, the sealing tape including a heat conductive material to provide heat conduction between the electrode main body and the metal can is provided.

公开(公告)号：US20240356127A1

公开(公告)日：2024-10-24

申请号：US18757802

申请日：2024-06-28

申请人： Ningde Amperex Technology Limited

发明人： Hengtao Xia ,  Jian Wu

IPC分类号： H01M50/198 ,  H01M50/105 ,  H01M50/178 ,  H01M50/186 ,  H01M50/193 ,  H01M50/197

CPC分类号： H01M50/198 ,  H01M50/105 ,  H01M50/178 ,  H01M50/186 ,  H01M50/193 ,  H01M50/197

摘要： An adhesive-sealant includes a first adhesive layer and a second adhesive layer arranged continuously along a first direction. The first direction is perpendicular to a thickness direction of the first adhesive layer. A melting point of the first adhesive layer is lower than a melting point of the second adhesive layer. A difference in the melting point between the first adhesive layer and the second adhesive layer is 15° C. to 55° C. This application further provides a battery cell containing the adhesive-sealant, a battery, and an electrical device. The adhesive-sealant is configured to implement connection between a tab and a packaging bag to improve performance of sealing and insulation at a junction between the tab and the packaging bag.