公开(公告)号：US11588215B2

公开(公告)日：2023-02-21

申请号：US16964136

申请日：2019-01-30

申请人： GS Yuasa International Ltd.

发明人： Hirokazu Kambayashi ,  Shohei Yamao ,  Takuya Aoyama

IPC分类号： H01M50/54 ,  H01M50/40 ,  H01M10/0587

摘要： An energy storage device includes: an electrode assembly; a case that houses the electrode assembly; and a spacer that is a side spacer disposed between the electrode assembly and the case. The spacer has a rear portion disposed to face the electrode-assembly end portion, a side portion extended in a direction along the side surface of the electrode assembly, and a connection that rotatably connects the side portion to the rear portion.

公开(公告)号：US11539084B2

公开(公告)日：2022-12-27

申请号：US16878655

申请日：2020-05-20

申请人： Daramic, LLC

发明人： Jeffrey K. Chambers

IPC分类号： H01M10/42 ,  H01M4/62 ,  H01M50/40 ,  H01M50/449 ,  H01M10/12 ,  H01M50/411 ,  H01M50/431 ,  H01M10/06

摘要： In at least select embodiments, the instant disclosure is directed to new or improved battery separators, components, materials, additives, surfactants, lead acid batteries, systems, vehicles, and/or related methods of production and/or use. In at least certain embodiments, the instant disclosure is directed to surfactants or other additives for use with a battery separator for use in a lead acid battery, to battery separators with a surfactant or other additive, and/or to batteries including such separators. In at least certain select embodiments, the instant disclosure relates to new or improved lead acid battery separators and/or systems including improved water loss technology and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure is directed toward a new or improved lead acid battery separator or system with one or more surfactants and/or additives, and/or methods for constructing lead acid battery separators and batteries with such surfactants and/or additives for improving and/or reducing water loss from the battery.

公开(公告)号：US11482758B2

公开(公告)日：2022-10-25

申请号：US16634696

申请日：2018-12-24

申请人： LG CHEM, LTD.

发明人： Da Kyung Han ,  Seung Hyun Lee ,  Dong Wook Sung ,  Je An Lee

IPC分类号： H01M50/446 ,  H01M10/0525 ,  H01M50/46 ,  H01M50/403 ,  H01M50/40 ,  H01M50/409 ,  H01M50/449

摘要： A separator for secondary batteries that allows the amount of a dispersing resin that is used and the amount of a dispersant that is used to be reduced in order to prevent an increase in resistance after the separator is coated, which occurs in the case in which a large amount of the dispersing resin is used in order to disperse inorganic matter, and an electrochemical device having the same applied thereto. The amount of a dispersing resin is reduced, whereby it is possible to prevent an increase in resistance after a porous separator is coated, a dispersing resin having a specific weight average molecular weight is mixed, whereby physical properties and dispersivity are improved, and the use of an expensive dispersant is excluded, whereby processing costs are reduced.

公开(公告)号：US11296379B2

公开(公告)日：2022-04-05

申请号：US16786873

申请日：2020-02-10

申请人： Apple Inc.

发明人： Angelo V. Marasco ,  Nathan J. Bohney

IPC分类号： H01M50/183 ,  H01M10/42 ,  H01M50/40 ,  H01M50/531 ,  H01M50/543

摘要： Battery systems according to embodiments of the present technology may include a battery cell having an electrode tab extending from an edge of the battery cell. The systems may also include a module electrically coupled with the battery cell. The module may be characterized by a first surface, a height, and a second surface opposite the first surface. A conductive tab coupled along the first surface of the module may extend from a first end parallel to a plane of the first surface. The conductive tab may be characterized by a curvature proximate a midpoint of the conductive tab. A distal region of the conductive tab may return back across the first surface of the module substantially parallel to the first surface. A distal portion of the electrode tab may be fixedly coupled with the distal region of the conductive tab.

公开(公告)号：US11296376B2

公开(公告)日：2022-04-05

申请号：US16298163

申请日：2019-03-11

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： Shingo Yamane

IPC分类号： H01M50/116 ,  H01M10/0587 ,  H01M50/40 ,  H01M50/474 ,  H01M50/477 ,  H01M50/584 ,  H01M50/136

摘要： A sealed battery disclosed herein is provided with an electrode body, a battery case, and an insulating holder. Round sections, having a curved surface, are formed between an inner surface and a bottom surface of the battery case. Deformation portions protruding towards the center, in a width direction, are formed on the inner surface of a lower end section of the insulating holder. A lower end section of a positive electrode connection portion and a lower end section of a negative electrode connection portion are press-deformed towards the center, in the width direction, by the deformation portions of the insulating holder. It becomes accordingly possible to suitably prevent short-circuits between the electrode body and the battery case, even when clearances within the battery case are made small and a width dimension of the electrode body is made large. Energy density can be suitably increased as a result.

公开(公告)号：US11287478B2

公开(公告)日：2022-03-29

申请号：US16959198

申请日：2019-04-11

申请人： LG CHEM, LTD.

发明人： Hoon Min ,  Chan-Woo Park ,  Byung-Soo Kim

IPC分类号： G01R31/36 ,  H01M10/42 ,  H01M50/40

摘要： A separator damage detecting apparatus detects a separator damage of a secondary battery by applying a voltage while pressing an electrode assembly having a structure in which a positive electrode plate, a separator and a negative electrode plate are stacked, to induce a temporary short circuit of a positive electrode plate and a negative electrode plate. The separator damage detecting apparatus includes a short circuit measuring unit configured to apply a voltage to the electrode assembly and detect a leakage current; and a pressing jig configured to roll-press at least one surface of the electrode assembly or consecutively press predetermined regions of the at least one surface of the electrode assembly.

公开(公告)号：US11264660B2

公开(公告)日：2022-03-01

申请号：US16186981

申请日：2018-11-12

申请人： Murata Manufacturing Co., Ltd.

发明人： Masahiro Otsuka ,  Toru Kawai ,  Masashi Higuchi ,  Takuya Kenko

IPC分类号： H01M2/02 ,  H01M10/04 ,  H01M4/02 ,  H01G11/28 ,  H01G11/52 ,  H01G11/80 ,  H01M50/103 ,  H01G11/78 ,  H01G11/26 ,  H01M50/10 ,  H01M50/40 ,  H01M50/46 ,  H01M50/116 ,  H01M10/058 ,  H01M50/463

摘要： An electrical storage device includes a case having first and second opposed main walls which face one another and at least one side wall coupled the first and second main walls. The case having a generally rectangular shape with outer corners and includes a cutout part having inner corners. An integrated electrode body is located in the case and is joined to the first main wall. The integrated body includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. The electrode body has a bending strength which is higher than a bending strength of the first main wall. An electrolyte fills the case.

公开(公告)号：US20220013834A1

公开(公告)日：2022-01-13

申请号：US17484471

申请日：2021-09-24

申请人： Apple Inc.

发明人： Angelo V. Marasco ,  Nathan J. Bohney ,  John M. McCambridge ,  Antonio Manenti ,  Laura E. Mayer ,  Scott L. Gooch ,  Jonathan C. Wilson ,  Flynn P. Carson

IPC分类号： H01M50/183 ,  H01M10/42 ,  H01M50/40 ,  H01M50/531 ,  H01M50/543

摘要： Battery systems according to embodiments of the present technology may include a battery cell having an electrode tab extending from an edge of the battery cell. The systems may also include a module electrically coupled with the battery cell. The module may be characterized by a first surface, a height, and a second surface opposite the first surface. A conductive tab coupled along the first surface of the module may extend from a first end parallel to a plane of the first surface. The conductive tab may be characterized by a curvature proximate a midpoint of the conductive tab. A distal region of the conductive tab may return back across the first surface of the module substantially parallel to the first surface. A distal portion of the electrode tab may be fixedly coupled with the distal region of the conductive tab.

公开(公告)号：US11223089B2

公开(公告)日：2022-01-11

申请号：US16320474

申请日：2017-09-13

申请人： HEBEI GELLEC NEW ENERGY MATERIAL SCIENCE&TECHNOLOGY CO., LTD.

发明人： Feng Xu ,  Haichao Yuan ,  Yunfei Deng ,  Wenxian Ma

IPC分类号： H01M10/05 ,  H01M50/40 ,  H01M50/44 ,  H01M50/449 ,  H01M10/0525 ,  B05C1/08 ,  H01M50/403 ,  H01M50/411 ,  H01M50/431

摘要： A heat-resistant multi-layer composite lithium-ion battery separator, and coating device and manufacturing method for same. The battery separator comprises a base membrane (12) having two end faces provided with a coating paste, and the end faces of the base membrane (12) are both adhered with a composite layer via the coating paste. The composite layer comprises one, two, or multiple composite films (13). The composite films (13) are adhered and fixed via the coating paste. The coating device is employed during the manufacturing, and comprises a base membrane uncoiling reel (1), a coating roller (2), a composite film uncoiling mechanism, a heating and drying mechanism, and a coiling reel (6). The coating roller (2) is arranged in a one-to-one correspondence to the composite film uncoiling mechanism, and two sets of the coating roller and the composite film uncoiling mechanism are provided on two sides of the base membrane (12). The composite film uncoiling mechanism comprises a composite film uncoiling reel (3) and a pressing shaft (4), and the composite films (13) are attached to the base membrane (12) after passing through the pressing shaft (4) to form a multi-layer composite separator, and then heated, dried, and shaped to obtain a separator final product. The separator final product has superior heat-resistant stability and a heat-resistant rate of contraction.

公开(公告)号：US20210399330A1

公开(公告)日：2021-12-23

申请号：US17464156

申请日：2021-09-01

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Tatsuya Takahashi ,  Ryosuke Okamoto

IPC分类号： H01M10/052 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  H01M50/40 ,  H01M4/1391

摘要： Provided are: a nonaqueous electrolyte secondary battery positive electrode active material that has high crystallinity, that causes less amount of Mn deposition on a negative electrode, and that can form a secondary battery having excellent cycle characteristics; and a nonaqueous electrolyte secondary battery using the nonaqueous electrolyte secondary battery positive electrode active material. The nonaqueous electrolyte secondary battery positive electrode active material according to the present invention is formed of a lithium-manganese-nickel complex oxide including a spinel-type crystal structure, wherein the lithium-manganese-nickel complex oxide has a crystallite diameter not smaller than 1000 Å and is formed of primary particles that have a polyhedron shape having more than eight surfaces. The proportion of ungrown particles not having the polyhedron shape of the primary particles in the lithium-manganese-nickel complex oxide is preferably not higher than 5%.