Patents Examined by Jason Barton
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Patent number: 11799074Abstract: A negative electrode includes a negative electrode protecting layer that is disposed so as to cover a negative electrode active material layer formed on at least one surface of a negative electrode core in a thickness direction and that has higher electrical resistance than the negative electrode active material layer. The negative electrode active material layer includes a first surface and a second surface. The first surface is formed in a region extending from an edge at one end to a boundary 300 ?m away from the edge in a width direction. The second surface is positioned closer than the first surface to the other end. Regarding the negative electrode protecting layer, the average value of the first thickness of a first portion covering the first surface is 1.7 or more times larger than the maximum value of the second thickness of a second portion covering the second surface.Type: GrantFiled: January 16, 2020Date of Patent: October 24, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Koichi Katayama, Tetsuya Matsuda, Haruya Nakai
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Patent number: 11784323Abstract: A thermal battery including: a battery core; and a load-bearing structure at least partially surrounding the battery core. The load-bearing structure including: a plurality of tubes arranged adjacent to one another and connected to at least one adjacent tube of the plurality of tubes; and an exothermic material disposed in the plurality of tubes. The load-bearing structure can include one or more initiation devices for initiating the exothermic material. The plurality of tubes can be compressed in a cross-section to compact the exothermic material disposed on the plurality of tubes. A thermal isolation material can also be disposed at one or more ends of the plurality of tubes.Type: GrantFiled: November 24, 2020Date of Patent: October 10, 2023Assignee: OMNITEK PARTNERS LLCInventor: Jahangir S Rastegar
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Patent number: 11777091Abstract: A positive electrode slurry composition, a positive electrode manufactured using the same, and a battery including the positive electrode. The positive electrode slurry composition includes a positive electrode active material, a binder, an alcohol, and water, wherein a content of the alcohol is in a range of 0.1 to 10% by weight, based on a total weight of the composition. The slurry composition for manufacturing a positive electrode has effects of highly improving the dispersibility of the positive electrode active material and the conductive material, decreasing the surface roughness of an electrode, and remarkably reducing a curling phenomenon in the electrode. Also, the slurry composition has an economic advantage in that a dispersing agent is not used or an amount of the dispersing agent used can be remarkably reduced.Type: GrantFiled: January 11, 2019Date of Patent: October 3, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jaegil Lee, Doo Kyung Yang, Yu Mi Kim, Yun Kyoung Kim, Eunkyung Cho
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Patent number: 11777076Abstract: An all-solid secondary battery including: a cathode layer including a cathode active material layer; an anode layer; and a solid electrolyte layer including a solid electrolyte, wherein the solid electrolyte layer is disposed between the cathode layer and the anode layer, wherein the anode layer includes an anode current collector, a first anode active material layer in contact with the solid electrolyte layer, and a second anode active material layer disposed between the anode current collector and the first anode active material layer, wherein the first anode active material layer includes a first carbonaceous anode active material, and the second anode active material layer.Type: GrantFiled: February 10, 2021Date of Patent: October 3, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jusik Kim, Sewon Kim, Victor Roev, Myungjin Lee, Saebom Ryu, Dongmin Im
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Patent number: 11769901Abstract: A separator for a rechargeable battery, a method of preparing a separator, and a rechargeable lithium battery, the separator including a porous substrate; and at least one coating layer on one surface of the porous substrate, wherein the coating layer includes a fluorine-containing binder, a filler, and an additive, the fluorine-containing binder has a concentration gradient in which a concentration thereof in the coating layer increases toward an outer surface of the separator in a thickness direction of the separator, an infrared spectral intensity of a C—F group of the fluorine-containing binder is greater than 0.0030 to less than 0.0050, the additive is a hydrocarbon polymer compound that includes a carboxyl group, and a weight average molecular weight of the hydrocarbon polymer compound is about 5,000 g/mol to about 15,000 g/mol.Type: GrantFiled: June 24, 2020Date of Patent: September 26, 2023Assignee: SAMSUNG SDI CO., LTD.Inventors: Daehyun Hong, Dowon Kim, Taejoon Park, Imhyuck Bae, Jaehyun Cho, Suna Lee
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Patent number: 11769931Abstract: In the present invention, not only a movement path of a current generated from a first electrode assembly, but also a movement path of a current generated from a second electrode assembly are provided by a cathode conductive member, and not only a movement path of the current generated from the second electrode assembly, but also a movement path of the current generated from the first electrode assembly are provided by an anode conductive member, such that cross sectional areas of the correct movement paths are increased. Therefore, a resistance of the long width secondary battery may be reduced.Type: GrantFiled: May 5, 2020Date of Patent: September 26, 2023Assignee: SK ON CO., LTD.Inventor: Ji Hyung Kim
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Patent number: 11764396Abstract: An all solid state battery in which shift in positions of a plurality of a cell unit arranged along a thickness direction can be prevented is provided. The all solid state battery includes a plurality of the cell unit connected in series. The all solid state battery includes a cell unit A and a cell unit B, a second current collector AY in the cell unit A and a second current collector BX in the cell unit B are arranged to face each other interposing a first insulating portion, and a tab AX, a tab AY, and a tab B are fixed by a fixing member.Type: GrantFiled: January 22, 2021Date of Patent: September 19, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satomi Yamamoto, Keisuke Omori, Hajime Hasegawa
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Patent number: 11695180Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case including an inner space accommodating the electrode assembly, and an opening; a cap plate coupled to the case at the opening and including a terminal hole exposing the inner space; an electrode terminal electrically connected to the electrode assembly through the terminal hole and overlapping the cap plate; electrode tabs respectively connected to the first electrode and the second electrode; and an electrolyte solution in the inner space, and at least one electrode tab of the electrode tabs has an inclined portion that is inclined at a first angle with respect to a surface of the electrode assembly facing the at least one electrode tab.Type: GrantFiled: April 7, 2021Date of Patent: July 4, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Heejung Ko, Kijung Kim, Yongjin Park, Byongchul Woo, Jong-Ha Lee
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Patent number: 11679685Abstract: An exemplary battery assembly includes, among other things, an enclosure defining an interior, and a frame disposed within a wall of the enclosure. The frame includes at least one retention feature configured to hold a service panel in a position where the service panel covers an opening to the interior. An exemplary method includes, among other things, transitioning a service panel to an engaged position with at least one retention feature to secure the service panel in a position where the service panel covers an opening in an enclosure. The at least one retention feature is provided by a frame disposed within a wall of the enclosure.Type: GrantFiled: January 12, 2018Date of Patent: June 20, 2023Assignee: Ford Global Technologies, LLCInventors: Manan Prafulchandra Sevak, Patrick Daniel Maguire, George Albert Garfinkel
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Patent number: 11664505Abstract: A method for assembling a thermal battery. The method including: arranging a plurality of tubes into a cylindrical shape; connecting the plurality of tubes to each other; attaching a first plate to a first end of the connected plurality of tubes into corresponding holes in the first plate; providing an initiation device to the first end of each of the plurality of tubes; filling each of the plurality of tubes from a second end with an exothermic material; assembling thermal battery components inside the connected plurality of tubes; connecting terminal wires to the thermal battery components; and connecting the second end of the connected plurality to a second plate.Type: GrantFiled: November 24, 2020Date of Patent: May 30, 2023Assignee: OMNITEK PARTNERS LLCInventor: Jahangir S Rastegar
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Patent number: 11652208Abstract: A sulfur-carbon composite including a porous carbon material; and sulfur present in at least a part of pores of the porous carbon material and on an outer surface of the porous carbon material, wherein an inner surface and the outer surface of the porous carbon material are doped with a carbonate compound. Also, a positive electrode and a secondary battery including the same. Further, a method of preparing a sulfur-carbon composite and a method of preparing a positive electrode.Type: GrantFiled: November 9, 2022Date of Patent: May 16, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Soohyun Kim, Kwonnam Sohn, Doo Kyung Yang
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Patent number: 11646466Abstract: 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 a width of the negative electrode is larger than the positive, and in the second direction, the relationship of t1>t2 is satisfied when the width of the negative electrode is smaller than the positive.Type: GrantFiled: March 22, 2019Date of Patent: May 9, 2023Assignee: TDK CORPORATIONInventors: Takamasa Minami, Kazuma Akimoto, Hideaki Seki
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Patent number: 11646411Abstract: A lithium-free anode having organic islands on a layer of graphene is provided. The lithium-free anode includes a current collector, a three-dimensional carbon lattice formed on the current collector, a first layer formed on the carbon lattice, a second layer formed on the first layer, and organic molecules formed on the second layer. The first layer includes copper, and the second layer includes graphene. The organic molecules are spaced apart from each other on the second layer.Type: GrantFiled: July 28, 2020Date of Patent: May 9, 2023Assignee: NISSAN NORTH AMERICA, INC.Inventor: Rohan Gokhale
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Patent number: 11600878Abstract: A battery block includes assembled batteries that are arranged in parallel to each other, and the plurality of assembled batteries are each formed of a plurality of batteries as a unit. Each of the batteries has a positive-electrode terminal and a negative-electrode terminal on one end portion of the battery. The assembled battery includes: the plurality of batteries which are arranged in a row with one end portions of the batteries directed in the same direction; an insulation holder which is arranged on one end portion side of the batteries and holds the batteries; and a positive-electrode bus bar and a negative-electrode bus bar arranged on one end portions of the batteries. The positive-electrode bus bar and the negative-electrode bus bar are respectively held by holding portions which are formed on the insulation holder along a row direction and in parallel to each other.Type: GrantFiled: August 21, 2018Date of Patent: March 7, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Jiro Muratsu, Shinya Geshi
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Patent number: 11588146Abstract: A lithium metal electrode has no more than five ppm of non-metallic elements by mass, and is bonded to a conductive substrate. Optionally, the lithium metal electrode may be bonded on one side to a conductive substrate and on another side to a lithium ion selective membrane. The lithium metal electrode may be integrated into lithium metal batteries. The inventive lithium metal electrode may be manufactured by a process involving electrolysis of lithium ions from an aqueous lithium salt solution through an ion selective membrane, carried out under a blanketing atmosphere having no more than 10 ppm of non-metallic elements, the electrolysis being performed at a constant current between about 10 mA/cm2 and about 50 mA/cm2, and wherein the constant current is applied for a time between about 1 minute and about 60 minutes.Type: GrantFiled: August 28, 2020Date of Patent: February 21, 2023Assignee: Pure Lithium CorporationInventor: Emilie Bodoin
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Patent number: 11588209Abstract: Separators, high performance electrochemical devices, such as, batteries and capacitors, including the aforementioned separators, systems and methods for fabricating the same. In one implementation, a separator is provided. The separator comprises a polymer substrate (131), capable of conducting ions, having a first surface and a second surface opposing the first surface. The separator further comprises a first ceramic-containing layer (136), capable of conducting ions, formed on the first surface. The first ceramic-containing layer (136) has a thickness in arrange from about 1,000 nanometers to about 5000 nanometers. The separator further comprises a second ceramic-containing layer (138), capable of conducting ions, formed on the second surface. The second ceramic-containing layer (138) is a binder-free ceramic-containing layer and has a thickness in arrange from about 1 nanometer to about 1,000 nanometers.Type: GrantFiled: August 21, 2018Date of Patent: February 21, 2023Assignee: APPLIED MATERIALS, INC.Inventors: Connie P. Wang, Wen Si, Yin Let Sim, Torsten Dieter, Roland Trassl, Subramanya P. Herle, Christoph Daube, Jian Zhu, James Cushing
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Patent number: 11545709Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case configured to be connected to the first electrode and accommodate the electrode assembly, and including an opening to expose the electrode assembly; a cap plate configured to be coupled to the case to cover an outer area of the opening, and including a through-hole to expose a central area of the opening; a terminal plate configured to cover the through-hole and to be connected to the second electrode; and a thermal-fusion layer configured to be arranged between the cap plate and the terminal plate and to insulation-bond the cap plate and the terminal plate, and the thermal-fusion layer includes a plurality of layers including a thermoplastic resin layer.Type: GrantFiled: December 31, 2020Date of Patent: January 3, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Heejung Ko, Kijung Kim, Yongjin Park, Byongchul Woo, Jong-Ha Lee
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Patent number: 11532850Abstract: A rechargeable battery according to an embodiment of the present invention includes: an electrode assembly; a case for receiving the electrode assembly; a cap plate combined to an opening of the case to close and seal an inside of the case and including a plurality of vent units; an elevation member penetrated and installed in the cap plate and moving by an internal pressure of the case; and a plurality of vent plates for closing and sealing the respective vent units, wherein the vent plate is connected to the elevation member through a connection member and links to the elevation member.Type: GrantFiled: June 12, 2019Date of Patent: December 20, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Jaesoon Jang, Miran Ryu
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Patent number: 11532857Abstract: The present disclosure provides a battery module, including a first battery cell arrangement structure, a second battery cell arrangement structure and a bus bar array. With battery cells stacked in a horizontal direction, a first battery cell arrangement structure and a second battery cell arrangement structure are stacked in a vertical direction, and a first bus bar of a bus bar array is used to sequentially connect the battery cells of the first battery cell arrangement structure and the second battery cell arrangement structure. As a result, a total positive electrode and a total negative electrode of a battery module are located at two ends of the battery module, which greatly reduces the possibility of a short circuit of the battery module and improves the safety of the battery module.Type: GrantFiled: December 31, 2020Date of Patent: December 20, 2022Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Kaijie You, Linggang Zhou, Dongyang Shi, Yanhuo Xiang, Yongshou Lin, Fei Hu
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Patent number: 11527753Abstract: A sulfur-carbon composite including a porous carbon material; and sulfur present in at least a part of pores of the porous carbon material and on an outer surface of the porous carbon material, wherein an inner surface and the outer surface of the porous carbon material are doped with a carbonate compound. Also, a positive electrode and a secondary battery including the same. Further, a method of preparing a sulfur-carbon composite and a method of preparing a positive electrode.Type: GrantFiled: October 29, 2018Date of Patent: December 13, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Soohyun Kim, Kwonnam Sohn, Doo Kyung Yang