Plural Concentric Or Single Coiled Electrode Patents (Class 429/94)
  • Patent number: 10355261
    Abstract: The invention relates to a cell coil (30, 40, 50, 60, 100, 200) for a lithium-ion battery, comprising at least two sub-cells (10, 32, 42, 44, 52, 54, 68, 70, 80, 82), which are wound in a space-saving manner and are thermally coupled to each other. According to the invention, the at least two sub-cells (10, 32, 42, 44, 52, 54, 68, 70, 80, 82) are electrically connected in parallel in normal operation, and, in the event of a fault, in particular in the event of an internal short circuit in at least one defective sub-cell (10, 32, 42, 44, 52, 54, 68, 70, 80, 82), at least one defective sub-cell (10, 32, 42, 44, 52, 54, 68, 70, 80, 82) can be electrically separated from the at least one intact sub-cell (10, 32, 42, 44, 52, 54, 68, 70, 80, 82).
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 16, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Harald Drings
  • Patent number: 10347876
    Abstract: A packaging material for batteries, which is not susceptible to the formation of a pinhole or cracking during the forming, while having excellent formability, and is effectively suppressed in curling after the forming, which is formed of a laminate with at least a base layer, an adhesive layer, a metal layer and a thermally fusible resin layer in this order, and wherein: the tensile modulus of elasticity of the base layer in one direction and the tensile modulus of elasticity of the base layer in a perpendicular direction in the same plane are both within the range of from 400 N/15 mm to 1,000 N/15 mm (inclusive); and the absolute value of the difference between the tensile modulus of elasticity of the base layer in the one direction and the tensile modulus of elasticity of the base layer in the other is 150 N/15 mm or less.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 9, 2019
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Atsuko Takahagi
  • Patent number: 10340550
    Abstract: Provided is a lithium ion secondary cell using lithium manganese-based oxide as a positive electrode active material, wherein SEI films suppressing deterioration during repeated charge/discharge are easily formed not only on the negative electrode surface, but also on the positive electrode surface, deterioration in capacity upon use, in particular, under high-temperature environments is suppressed, charge/discharge cycle characteristics are improved and lifespan is lengthened. The lithium ion secondary cell includes a positive electrode active material layer containing lithium manganese-based oxide as a positive electrode active material, a negative electrode active material layer containing a negative electrode active material, and an electrolytic solution used to immerse the positive electrode active material layer and the negative electrode active material layer, wherein the positive electrode active material layer contains carbon nanotubes and the electrolytic solution contains sulfonic acid ester.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: July 2, 2019
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventor: Takeshi Azami
  • Patent number: 10321588
    Abstract: Systems, methods, and computer-readable media are disclosed for a flexible battery. The systems, methods, and computer-readable media described herein may improve user experiences and prolong the battery's life. In an example embodiment described herein, a flexible battery may comprise a first battery portion positioned in a grip portion and having a first thickness, and a second battery portion positioned in a second portion having a second thickness that is less than the first thickness, wherein the second battery portion is bendable in the at least one direction, and the first battery portion is rigid.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 11, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Bryan Holmdahl, James Robert Lim, Yuting Yeh, David Wang, Kok Yen Cheng
  • Patent number: 10320024
    Abstract: An electrode assembly includes: a positive electrode plate including a positive electrode collector having, on its first side, a positive electrode coating portion having a positive electrode active material thereon and a first positive electrode non-coating portion; a positive electrode tab on the first positive electrode non-coating portion; a negative electrode plate including a negative electrode collector having, on its first side facing the first side of the positive electrode collector, a negative electrode coating portion having a negative electrode active material thereon and a first negative electrode non-coating portion; and a separator between the positive and negative electrode plates. The first positive electrode non-coating portion is between ends of the positive electrode plate, and the first negative electrode non-coating portion overlaps the first positive electrode non-coating portion.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: June 11, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kwan-Sic Chun
  • Patent number: 10305072
    Abstract: A heat-sealable insulating film for installation in a secondary battery including a positive electrode member and a negative electrode member being formed from a collector foil and an active material layer formed to cover one end on the collector foil, wherein an adhesive layer is adhered by heat-sealing to cover at least a boundary of an exposed part of the collector foil and the active material layer of the positive electrode member or the negative electrode member, a peripheral edge of the positive electrode member or the negative electrode member has a cross-sectional surface including the collector foil and the insulating film, and the insulating film consists of at least two layers of a base material layer made of a polyolefin resin and the adhesive layer made of a polyolefin resin modified with an unsaturated carboxylic acid or a derivative thereof.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 28, 2019
    Assignees: Toray Advanced Film Co., Ltd., Automotive Energy Supply Corporation
    Inventors: Youichi Matsuura, Yoshitaka Fukagai, Satoshi Yamada, Etsuo Ogami, Satoshi Okano, Tomoyuki Ichikawa
  • Patent number: 10297809
    Abstract: A secondary battery includes: a case having an opening; an electrode assembly in the case; a cap plate for sealing the opening of the case; and an electrode unit penetrating through the cap plate, and electrically coupled to the electrode assembly. The electrode unit includes: a current collector coupled to the electrode assembly; and a lead coupled to the current collector and penetrating through the cap plate. The current collector and the lead are coupled to each other by inserting an assembling portion of the lead into an accommodation opening formed in the current collector. Thus, a structure of a coupling portion of the electrode unit for forming charging/discharging paths coupled to the electrode assembly may be improved, and accordingly, an effective internal volume of a case in which the electrode assembly is accommodated and a battery capacity of the electrode assembly may be increased.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 21, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myung-Jae Jang, Hyun-Soo Lee
  • Patent number: 10290892
    Abstract: A method of manufacturing a rechargeable battery with a curved surface is disclosed. In one aspect, the method includes winding a plurality of electrodes and a separator together so as to form an electrode assembly, wherein the electrode assembly has first and second sides and two lateral ends connected to each other by the first and second sides, and wherein the first side is longer than the second side. The method also includes pressing the electrode assembly so as to bend the electrode assembly, electrically connecting the electrode assembly to a plurality of terminals, and accommodating the electrode assembly within a case.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 14, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kang-Kook Jung
  • Patent number: 10283816
    Abstract: The present application relates to the filed of an energy storage component, and in particular, relates to an electrode assembly, and a lithium ion electric roll using the electrode assembly. The electrode assembly comprises a bare electric roll and an anti-puncture cushion; wherein the bare electric roll comprises at least one electrode unit, the electrode unit comprising a cathode sheet, an anode sheet, and a separator, wherein the cathode sheet is isolated from the anode sheet by the separator; and the anti-puncture cushion is arranged on two sides along a width direction of the bare electric roll, and covers an edge of the anode sheet. A lithium ion electric roll comprises a laminated aluminum film and the electrode assembly, wherein the electrode assembly is wrapped by the laminated aluminum film.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 7, 2019
    Assignee: DONGGUAN AMPEREX TECHNOLOGY LIMITED
    Inventors: Junliang Zhu, Haibing Wang, Tongming Dong, Wenqiang Cheng, Baohua Chen, Shufeng Wu, Wei Yang, Zhihua Qin, Meina Lin
  • Patent number: 10276852
    Abstract: A rechargeable battery includes a wound electrode assembly comprising a first electrode and a second electrode with a separator located between the first electrode and the second electrode, wherein the electrode assembly defines a rotation axis about which it has been wound and wherein lateral ends of the electrode assembly define rounded portions; a case accommodating the electrode assembly; and a cap assembly coupled to the case and including a first terminal and a second terminal, wherein the first electrode includes a plurality of first electrode tabs extending parallel with the rotation axis and protruding from lateral edges of the first electrode, wherein the second electrode includes a plurality of second electrode tabs extending parallel with the rotation axis and protruding from lateral edges of the second electrode, and wherein the first and second electrode tabs are separated from each other and located in the rounded portions.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 30, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Min-Hyung Guen
  • Patent number: 10274458
    Abstract: A method for detecting a surface coating performance of a cathode active material comprising: providing an acid solution with a predetermined concentration; putting a coated cathode active material in a container; adding the acid solution into the container until the coated cathode active material is completely soaked to form a solid liquid mixture; sealing the container, heating and stirring the solid liquid mixture, and recording a series of pH values of a liquid phase of the solid liquid mixture at different points in time; and determining the surface coating performance of the coated cathode active material by comparing the recorded pH values with standard pH values. A method for detecting a surface coating performance of a cathode active material by detecting metal ion concentrations in the solid liquid mixture is also provided.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: April 30, 2019
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Li Wang, Xiang-Ming He, Xiao-Ying Pang
  • Patent number: 10263237
    Abstract: A cylindrical battery according to one aspect of the present invention includes an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an electrolyte liquid; a cylindrical outer can having a bottom portion which receives the electrode body and the electrolyte liquid; and a sealing body sealing an open portion of the outer can. The positive electrode leads extend along an outer circumference portion of a collector member disposed on the electrode body and are connected to a surface of the collector member at an outer side of the battery. The collector member includes a collector plate to which the positive electrode leads are connected and a first insulating plate fitted to a surface of the collector plate at an inner side of the battery.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 16, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yuma Yamaguchi, Takahiro Fukuoka, Shuichi Yamashita, Kyosuke Miyata
  • Patent number: 10263242
    Abstract: Provided is an anode for a lithium secondary battery composed of a multi-layered structure including an electrode current collector, a first anode active material layer including a first anode active material formed on the electrode current collector, and a second anode active material layer including a second anode active material having relatively lower press density and relatively larger average particle diameter than the first anode active material. Since an anode according to an embodiment of the present invention may include a multi-layered active material layer including two kinds of anode active materials having different press densities and average particle diameters on an electrode current collector, porosity of the surface of the electrode may be improved even after a press process to improve ion mobility into the electrode. Thus, charge characteristics and cycle life of a lithium secondary battery may be improved.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Byoung Hoon Ahn, Joon Sung Bae, Chang Wan Koo
  • Patent number: 10249867
    Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: April 2, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
  • Patent number: 10243177
    Abstract: A cylindrical battery includes a cylindrical battery case and a cylindrical electrode assembly arranged in the battery case and including a positive electrode, a negative electrode, and a separator. The electrode assembly has a slit extending from a first axial end to a second axial end.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 26, 2019
    Assignee: GS Yuasa International Ltd.
    Inventors: Manabu Kanemoto, Tadashi Kakeya, Mitsuhiro Kodama
  • Patent number: 10239287
    Abstract: A molding packaging material excellent in interlaminar lamination strength is provided, in which it is possible to prevent deterioration of the interlaminar strength due to influences of electrolytes and also possible to prevent deterioration of the interlaminar strength due to influences of heat generation and/or expansion/contraction of the packaging material caused by repetition of charging/discharging.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 26, 2019
    Assignees: SHOWA DENKO PACKAGING CO., LTD., TOAGOSEI CO., LTD.
    Inventors: Takahiro Ito, Junya Komano, Makoto Imahori, Tetsunobu Kuramoto, Yuuji Minamibori
  • Patent number: 10230084
    Abstract: A swelling tape for filling a gap, a method of manufacturing the swelling tape for filling a gap, a method of filling a gap, an electrode assembly and a secondary battery are provided. For example, the swelling tape can be applied inside a gap in which a fluid exists so as to fill the gap by becoming a 3D form, and can be useful at anchoring a subject in which the gap is formed, as necessary.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Se Ra Kim, Suk Ky Chang, Hyo Sook Joo, Yoon Tae Hwang, Se Woo Yang, Joon Hyung Kim, Sung Jong Kim
  • Patent number: 10224564
    Abstract: A nonaqueous electrolyte secondary battery includes a wound electrode body, and the wound electrode body includes two curved portions and a center flat portion which has flat surfaces. A positive electrode winding end, a negative electrode winding end, and separator winding ends are positioned on the same curved portion. The negative electrode winding end is arranged at an advanced position from the positive electrode winding end in a winding direction, and at least one of the separator winding ends is positioned at an advanced position from the negative electrode winding end in the winding direction. A distance a (mm) from the negative electrode winding end to the separator winding end and a distance b (mm) from the positive electrode winding end to the negative electrode winding end satisfy relationships 0.5?a×(a+b)?104 and 0?b?11.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: March 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Umeyama, Yukiyoshi Ueno, Hideki Sano
  • Patent number: 10205171
    Abstract: A negative electrode for a rechargeable lithium battery includes a negative current collector; a negative active material layer on the negative current collector; and a negative electrode tab on an uncoated region of the negative current collector, the uncoated region not having a negative active material coated thereon, wherein the negative electrode tab has a three-layered structure of a nickel layer-copper layer-nickel layer. A rechargeable lithium battery includes the negative electrode.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 12, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hyo-Rim Bak
  • Patent number: 10199658
    Abstract: A thermal battery includes a first conductive layer containing an anode material separated from a second conductive layer containing a cathode material by a separator layer containing a separator material; and a flexible pyrotechnic heat source, wherein the first conductive layer, the separator layer, and the second conductive layer are rolled together to form the spiral wound configuration. A method of manufacturing a thermal spiral wound battery includes preparing three slurries, each containing one of an anode material, a cathode material, and a separator material, depositing each of the materials from the slurries onto conductive substrates to form three layers, stacking the layers, and winding the layers together into a spiral wound configuration.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 5, 2019
    Assignee: EAGLEPICHER TECHNOLOGIES, LLC
    Inventors: Joe Edington, James Ferraro
  • Patent number: 10193116
    Abstract: The present invention relates generally to electrochemical energy storage devices such as Li-ion batteries, and more particularly to a method of providing uniform ceramic coatings with controlled thicknesses for separators in such storage devices. Some embodiments of the invention utilize a layer by layer coating of nano/micro-sized particles dispersed in a solvent, which can be aqueous or non-aqueous. Other embodiments of the invention utilize a dry process such as PVD for depositing a ceramic film on a porous polyolefin separator. According to certain aspects of the invention, advantages of this approach include the ability to achieve a denser more uniform film with better controlled thickness with less waste and higher yield than current ceramic coating technology. An advantage of a ceramic coated separator is increased safety of cells.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 29, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Subramanya P. Herle, Joseph G. Gordon
  • Patent number: 10186713
    Abstract: A thermal battery including: a casing; a battery cell disposed in the casing; a heat generating pyrotechnic material, separate from the battery cell, at least partially surrounding the battery cell; and insulation disposed between the heat generating pyrotechnic material and the casing, wherein the heat generating pyrotechnic material is disposed in a flattened tube having a flat cross-section where at least two sides are substantially parallel, the flattened tube being spirally wound to form a shape corresponding to a complimentary shape of at least a portion of the battery cell.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: January 22, 2019
    Assignee: OMNITEK PARTNERS LLC
    Inventor: Jahangir S Rastegar
  • Patent number: 10173896
    Abstract: An olivine cathode material having the formula LiaFe1?x?y?zMnxD(y+z)(PO4)c, wherein a, c, x, y and z represent molar amounts, wherein D=Mg and/or Cr, wherein y represent the amount of Mg and z represents the amount of Cr, wherein 1.04<a<1.15; wherein 0.97<(2*c/(a+1))<1.07; wherein 0.6<x<1?y?z; wherein 0<y+z<0.1. These material show improved cathode properties in lithium based rechargeable batteries.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: January 8, 2019
    Assignees: UMICORE, UMICORE KOREA LTD.
    Inventors: DaeHyun Kim, Jens Paulsen, Jing Zhang
  • Patent number: 10177399
    Abstract: A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate, a case in which the electrode assembly and an electrolyte are received, and a finishing member attached to an outer surface of the electrode assembly. The finishing member includes a first layer, a second layer, and a third layer. The first layer has one surface attached to the electrode assembly. The second layer and the third layer are different from each other and are sequentially provided on another surface of the first layer. The second layer and the third layer react to the electrolyte.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 8, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Daekyu Kim
  • Patent number: 10147967
    Abstract: In a cylindrical battery, a bottomed cylindrical battery case includes an opening end bent or curved toward a center axis of the battery case, and a constriction annularly formed around the center axis. A gasket is compressed by the opening end and the constriction, and a rim portion of the sealing member is grasped by the compressed gasket. The outer diameter of the battery case is 10 mm or less. A first corresponding line corresponds to the rim of the sealing member in a projected image of the sealing member on the virtual plane perpendicular to the center axis of the battery case, and a second corresponding line corresponds to a tip edge of the opening end in a projected image. In this case, deviation d of the second corresponding line from the first corresponding line toward the center axis satisfies ?0.1 mm?d?+0.5 mm.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 4, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akira Kakinuma, Keisuke Yoneda, Nozomu Tsukayama
  • Patent number: 10141560
    Abstract: Provided is an energy storage device which includes an electrode assembly in which electrode plates are stacked; and a current collector connected to an end portion of the electrode assembly, wherein the end portion of the electrode assembly includes: an electrode plate welded portion at which the stacked electrode plates are welded to each other in a stacking direction and not joined to the current collector; and a current collector joined portion which is joined to the current collector and is arranged adjacently to the electrode plate welded portion in a current collector extending direction that intersects with the stacking direction.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 27, 2018
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Kazuya Okabe, Yudai Kato
  • Patent number: 10135088
    Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator, the first and second electrodes being located on either side of the separator and wound together; a center pin located within the electrode assembly and electrically connected to an uncoated region of the first electrode; a case accommodating the electrode assembly and electrically connected to an uncoated region of the second electrode; a terminal extending to the outside of the case from the center pin; and a gasket located between the terminal and an opening of the case and sealing the opening.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: November 20, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-In Park, Eun-Young Goh, Ji-Woon Lee, Jin-Hyon Lee, Sung-Yong Kim, Jin-Seon Shin, Jong-Ki Lee
  • Patent number: 10135097
    Abstract: The disclosed embodiments relate to a battery cell which includes a set of electrode sheets of different dimensions arranged in a stacked configuration to facilitate efficient use of space inside a portable electronic device. For example, the electrode sheets may be arranged in the stacked configuration to accommodate a shape of the portable electronic device. The stacked configuration may be based on a non-rectangular battery design such as a toroidal design, an L-shaped design, a triangular design, a pie-shaped design, a cone-shaped design, and/or a pyramidal design.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 20, 2018
    Assignee: Apple Inc.
    Inventor: Bradley L. Spare
  • Patent number: 10128469
    Abstract: In a prismatic sealed secondary battery provided with an outer can made of a metal, the ability of inserting the electrode assembly into the outer can is improved to restrain the displacement and damages of the insulation member when inserting the electrode assembly into the outer can. The prismatic sealed secondary battery of the present invention includes an insulation member having a bottomed box shape which is a shape obtained by eliminating the upper surface from the surfaces of a hexahedron having a cuboid form, wherein each width of at least a pair of side surfaces facing each other in the insulation member is smaller than the width of the electrode assembly facing the pair of side surfaces.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: November 13, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takayuki Hattori, Yasuhiro Yamauchi, Toshiyuki Nohma
  • Patent number: 10128536
    Abstract: Lithium ion (Li-ion) multi-cell batteries in which the requirements for individual monitoring and controlling charging of each cell, the requirements for monitoring and controlling charge balancing and the effects of repeated charging and discharging are ameliorated are presented. In one or more embodiments, the multi-cell battery includes configuration material that substantially provides a moisture barrier.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: November 13, 2018
    Assignee: A123 Systems, LLC
    Inventor: William H. Gardner
  • Patent number: 10128472
    Abstract: The present application relates to a secondary battery head cover assembly, a secondary battery including the same and an assembling method thereof. The secondary battery head cover assembly includes a head cover and an insulation structure, the insulation structure includes a top connection sheet and two naked battery core insulation sheets, an electrode pole is provided on the head cover, and an electrode pole through hole, through which the electrode pole passes, is provided at a position on the top connection sheet corresponding to the electrode pole, the top connection sheet is located below the head cover and is fixed to the head cover. The secondary battery includes the secondary battery head cover assembly and the naked battery core, the naked battery core is located below the top connection sheet, and the two naked battery core insulation sheets wrap the side and bottom surfaces of the naked battery core.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 13, 2018
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Qingkui Chi, Kaifu Zhong
  • Patent number: 10121605
    Abstract: The present invention provides for two types of wide operating temperature range electrolyte formulations that contain methyl butyrate (MB) and additives have been investigated and compared in Lithium-ion capacitors (LICs), which were consisted of hard carbon (HC)/stabilized lithium metal powder (SLMP) anodes and activated carbon (AC) cathodes. The electrolyte L1 that was 1M LiPF6 in ethylene carbonate (EC)+ethyl methyl carbonate (EMC)+MB (20:20:60 v/v %)+0.1M lithium bis(oxalato)borate (LiBOB) and electrolyte L2 that was 1M LiPF6 in EC+EMC+MB (20:20:60 v/v %)+0.1M lithium difluoro(oxalato)borate (LiDFOB) enabled the LICs to discharge at the temperature as low as ?40° C., which the conventional electrolyte LP30 that was 1 M LiPF6 in EC+dimethyl carbonate (DMC) (50:50 w/w %) could not achieve. At the low temperature of ?40° C., L2 held more than 64% of the discharge capacity at 30° C., while the L1 only had the discharge capacity retention of 30%.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 6, 2018
    Assignee: GENERAL CAPACITOR, LLC
    Inventors: Wanjun Cao, Harry Chen, Jian-ping (Jim) Zheng, Daniel L. Adams
  • Patent number: 10109881
    Abstract: A secondary battery and method of manufacturing the same are disclosed. In one aspect, the secondary battery includes an electrode assembly including a first current collector, a second current collector, and an isolation layer interposed between the first and second current collectors, the first current collector, the second current collector, and the isolation layer being wound, each of the first and second current collectors including a body portion and an extension portion extending from the body portion, and the extension portions of the first and second current collectors extending in substantially opposite directions. The battery also includes a first auxiliary current collector formed over the electrode assembly and electrically connected to the extension portion of the first current collector. The battery further includes a second auxiliary current collector formed below the electrode assembly and electrically connected to the extension portion of the second current collector.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 23, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Gibong Cho
  • Patent number: 10084176
    Abstract: A rechargeable battery, including an electrode assembly for performing charging and discharging operations; a case in which the electrode assembly is placed; a cap plate for closing and sealing an opening of the case; an electrode terminal provided outside of the cap plate through a terminal hole of the cap plate, the electrode terminal electrically coupled to the electrode assembly; and an insulating member for electrically insulating the electrode terminal from the cap plate, the electrode terminal including a rivet terminal in the terminal hole and a plate terminal connected to the rivet terminal outside of the cap plate, and the insulating member including a first insulator at an external circumference of the rivet terminal outside of the terminal hole and a second insulator between the cap plate and the plate terminal at an external circumference of the first insulator.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: September 25, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Chi-Young Lee, Myung-Jae Jang
  • Patent number: 10056610
    Abstract: The purpose of the present invention is to easily provide at low cost, a cathode active material for non-aqueous electrolyte secondary batteries, which exhibits high particle strength and high weather resistance, while enabling achievement of excellent charge and discharge capacity and excellent output characteristics in cases where the cathode active material is used as a cathode material of a non-aqueous electrolyte secondary battery. A slurry of from 500 g/L to 2000 g/L is formed by adding water to a powder of a lithium nickel composite oxide represented by the general formula (A): LizNi1?x?yCoxMyO2, where 0.10?x?0.20, 0?y?0.10, 0.97?z?1.20, and M represents at least one element selected from among Mn, V, Mg, Mo, Nb, Ti and Al); the slurry is washed with water by stirring; and after filtration, the resulting material is subjected to a heat treatment at a temperature of from 120° C. to 550° C. (inclusive) in an oxygen atmosphere having an oxygen concentration of 80% by volume or more.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 21, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Tomoko Nakayama, Rei Kokado, Kensaku Mori
  • Patent number: 10056577
    Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly is mounted in a battery case formed of a laminate sheet including a resin layer and a metal layer in a state in which the electrode assembly are connected to electrode terminals protruding outward from the battery case. The electrode assembly is configured such that separators are respectively disposed between cathodes and anodes, each of which is formed by applying a compound including an electrode active material to a current collector. At least a portion of an inside of the battery case corresponding to an outer circumference of the electrode assembly has an upward sloping structure in which a width of the battery case increases upward in vertical section or a downward sloping structure in which the width of the battery case increases downward in vertical section.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: August 21, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Pillgyu Jang, Soonho Ahn, Sang Baek Ryu, Ki Woong Kim
  • Patent number: 10050311
    Abstract: The present invention provides an electrode for a secondary battery, more specifically an electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on at least one surface or the whole outer surface of the current collector; a conductive material-coating layer formed on the top surface of the electrode active material layer and comprising a conductive material and a first polymer binder; and a porous coating layer formed on the top surface of the conductive material-coating layer and comprising a second polymer binder. Also, the present invention provides a secondary battery and a cable-type secondary battery comprising the electrode.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: August 14, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Jang-Hyuk Hong, Hye-Ran Jung, Je-Young Kim, Jong-Hun Kim
  • Patent number: 10044014
    Abstract: The invention relates to a battery unit (1) comprising: a plurality of electrically interconnected electrochemical cells (2), each of said cells having an electrode arrangement (3), in particular a lithium-based electrode arrangement (3) with a cathode contact element (4) and an anode contact element (5); and an outer sheathing (7) surrounding a chamber (6) in which the electrochemical cells (2) are arranged. The outer sheathing (7) is designed as a humidity barrier and as a chemical barrier. Each individual electrochemical cell (2) of the battery unit (1) comprises an electrically insulating sheathing (8) which surrounds the respective electrode arrangement (3). The invention also relates to a battery module comprising a plurality of electrically interconnected battery units (1) designed according to the invention.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 7, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Rudi Kaiser, Holger Reinshagen, Silvan Poller
  • Patent number: 10026948
    Abstract: A galvanic element includes a housing, a positive terminal, a negative terminal, and a collector associated with each terminal. The collectors are configured to make contact with an electrode assembly in the interior of the housing. The housing is a stainless steel housing which has a negative potential or a neutral potential.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: July 17, 2018
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Markus Kohlberger
  • Patent number: 10026933
    Abstract: A nonaqueous electrolyte battery provided by the present invention includes: an electrode body (80) having a flat shape and including a positive electrode and a negative electrode (60); a square-shaped battery case (30) configured to accommodate therein the electrode body (80) and a nonaqueous electrolyte; and a negative electrode collector terminal (94) placed in the battery case (30) and connected to the negative electrode (60) of the electrode body (80). The negative electrode collector terminal (94) is mainly made of copper or copper alloy. An insulator film (10) configured to insulate the battery case (30) from the electrode body (80) is placed between an inner wall (30a) of the battery case (30) and the electrode body (80). The insulator film (10) is joined to the inner wall (30a) of the battery case (30), and the insulator film (10) is placed so as not to make contact with the negative electrode collector terminal (94).
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: July 17, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Harayama, Koji Takahata, Tomohide Sumi, Yoshio Matsuyama
  • Patent number: 10014526
    Abstract: Provided is a sheet type separation layer-electrode composite including a current collector, an electrode active material layer formed on one surface of the current collector, and a porous first support layer formed on an upper surface of the electrode active material layer, and a secondary battery and a cable type secondary battery including the same.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: July 3, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, In-Sung Uhm, Je-Young Kim
  • Patent number: 10008699
    Abstract: A package for a power storage device includes a metal foil layer, an insulation layer laminated on at least center portion of one surface of the metal foil layer, and a heat-sealable resin layer arranged one surface of the metal foil layer or a region corresponding to a periphery of the one surface of the metal foil layer. With this, thinning, weight saving, and shortening of the production time can be attained.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 26, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Tetsunobu Kuramoto, Yuji Minamibori, Takashi Nagaoka
  • Patent number: 9991499
    Abstract: A flat electrode body of a battery has a first-side curved end positioned on a first side of an electrode body width direction and a second-side curved end positioned on a second side. A positive electrode innermost curved portion of a positive electrode sheet is disposed inside the first-side curved end. When the dimension from a positive electrode connecting portion to the end on the first side of the electrode body is defined as a distance and the dimension from the positive electrode connecting portion to the end on the second side of the electrode body is defined as a distance, the positive electrode connecting portion being in the positive electrode protrusion wound portion and connected to a terminal connecting portion of a positive terminal member, the terminal connecting portion is connected to the positive electrode connecting portion at a position satisfying the condition Ha?1.1Hb.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: June 5, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Taira Saito, Masato Kamiya, Junpei Terashima, Ayumu Kamakura, Shinji Suzuki
  • Patent number: 9991500
    Abstract: A rechargeable battery is disclosed. In one aspect, the rechargeable battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The rechargeable battery also includes a pouch which receives the electrode assembly and an electrode tab including a positive electrode tab and a negative electrode tab electrically connected to the electrode assembly and outwardly protruding from the pouch. The width of a portion of the electrode tab electrically connected to the electrode assembly inside the pouch is greater than the width of a portion outwardly protruding from the pouch.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: June 5, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Ja-Kyung Cho
  • Patent number: 9979005
    Abstract: A rechargeable battery has a short circuit member that improves safety. The rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case having an opening and housing the electrode assembly; a first terminal electrically connected to the first electrode; a second terminal electrically connected to the second electrode; a cap plate coupled to the case at the opening, the cap plate having a short circuit opening and being electrically connected to the first electrode; a short circuit member inserted into the short circuit opening and electrically connecting the cap plate to the second terminal when the short circuit member is modified due to a change in pressure; an upper cover covering the short circuit opening and having an air opening; and a plug inserted into the air opening and being movable by the short circuit member.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: May 22, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Min-Hyung Guen
  • Patent number: 9972868
    Abstract: Disclosed herein are an electrode stack including at least one positive electrode, at least one negative electrode, and at least one separator, wherein the positive electrode, the negative electrode, and the separator are stacked such that the separator is disposed between the positive electrode and the negative electrode, one end of each of the positive electrode and the negative electrode does not intersect the other end of each of the positive electrode and the negative electrode, a stacked surface of each of the positive electrode, the negative electrode, and the separator includes a curved surface, and the negative electrode has an arc length equal to or greater than that of the positive electrode while the separator has an arc length greater than that of the positive electrode in a state in which the positive electrode, the negative electrode, and the separator are curved, and a battery pack including the same.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 15, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Eun Seok Choi, Shin Hyo Cho, Jae Bin Chung, Dong-Myung Kim
  • Patent number: 9966631
    Abstract: A solid electrolyte interface is formed on a silicon monoxide electrode in a battery cell. After the solid electrolyte interface is formed on the silicon monoxide electrode, the battery cell is charged for one or more initial cycles while the battery cell is compressed.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 8, 2018
    Assignee: Kitty Hawk Corporation
    Inventors: Chen Li, Patrick K. Herring
  • Patent number: 9960411
    Abstract: A method of manufacturing a negative electrode for a nonaqueous electrolyte secondary battery includes: preparing a copper foil having a first main surface and a second main surface that are opposite sides of the copper foil; obtaining a granulated body by mixing a negative electrode active material, a thickener, a binder, and a solvent with each other to obtain a mixture and by granulating the mixture; obtaining a first negative electrode mixture layer by pressing the granulated body; arranging the first negative electrode mixture layer on the first main surface; and softening the copper foil by bringing the second main surface into contact with a heated roller in a state where the first negative electrode mixture layer is arranged on the first main surface. A temperature of the heated roller is a recrystallization temperature of the copper foil or higher.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 1, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Umeyama, Naoto Onodera, Naoyuki Wada, Yusuke Fukumoto, Tatsuya Hashimoto, Yuji Yokoyama
  • Patent number: 9941505
    Abstract: A battery includes a shell, a core and a protection component received in the shell. The core includes a first electrode tab connected to a first current collector and a second electrode tab connected to a second current collector of the core. The protection component includes two insulating layers and a conducting layer disposed between two insulating layers. The conducting layer defines a first end electrically connected to the first electrode tab and a second end configured as a free end, and an outmost current collector of the core is configured by the second current collector.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: April 10, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Xi Shen, Luxia Jiang, Jianhua Zhu, Shichao Hu, Gaowu Wang, Hongjuan Gu
  • Patent number: 9935329
    Abstract: Disclosed herein is an electrode group stack including a stacked structure of electrode groups, each including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, in which the electrode groups are stacked in a height direction on the basis of a plane such that the positive electrode and the negative electrode face each other in a state in which the separator is disposed between the positive electrode and the negative electrode, wherein the stacked structure of the electrode groups includes electrode groups having different areas at an interface between the electrode groups, and a ratio of capacity to area of the positive electrode and the negative electrode at the interface between the electrode groups (N/P ratio) is equal to or greater than a ratio of capacity to area of a positive electrode and a negative electrode constituting an electrode group having a relatively large area (N/P ratio).
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 3, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sungjin Kwon, Dong-Myung Kim, Kiwoong Kim