Patents Examined by Heng M Chan
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Patent number: 10826066Abstract: A lithium-ion secondary battery includes at least a positive electrode and a negative electrode. The negative electrode is porous. The negative electrode includes a carbon fiber aggregate and a polymer film. The carbon fiber aggregate is an aggregate of a plurality of carbon fibers bound together in a three-dimensional fashion. The polymer film covers a surface of each of the carbon fibers. The positive electrode includes a group of particles and an electrolyte solution. The group of particles is dispersed in the electrolyte solution. The group of particles contains a positive electrode active material and a conductive material. Pores that are present within the negative electrode are filled with the positive electrode. The polymer film is swollen with the electrolyte solution.Type: GrantFiled: March 13, 2019Date of Patent: November 3, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hideaki Oka
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Patent number: 10818965Abstract: Disclosed is a ceramic material having a formula of LiwAxM2Re3-yOz, wherein w is 5-7.5; wherein A is selected from B, Al, Ga, In, Zn, Cd, Y, Sc, Mg, Ca, Sr, Ba, and any combination thereof; wherein x is 0-2; wherein M is selected from Zr, Hf, Nb, Ta, Mo, W, Sn, Ge, Si, Sb, Se, Te, and any combination thereof; wherein Re is selected from lanthanide elements, actinide elements, and any combination thereof; wherein y is 0.01-0.75; wherein z is 10.875-13.125; and wherein the material has a garnet-type or garnet-like crystal structure. The ceramic garnet based material is ionically conducting and can be used as a solid state electrolyte for an electrochemical device such as a battery or supercapacitor.Type: GrantFiled: July 11, 2017Date of Patent: October 27, 2020Assignee: The Regents of the University of MichiganInventors: Jeffrey Sakamoto, Travis Thompson
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Patent number: 10811644Abstract: Systems and methods which provide nickel-zinc textile batteries formed from highly conductive yarn-based components which are configured to facilitate textile material processing, such as weaving, knitting, etc., are described. Embodiments of a conductive yarn-based nickel-zinc textile battery may be constructed using scalably produced highly conductive yarns, such as stainless steel yarns, coated or covered with zinc (anodes) and nickel (cathode) materials, wherein the foregoing yarn anode and cathode components may be coated with an electrolyte to form yarn-based battery assemblies. A conductive yarn-based nickel-zinc textile battery may be constructed by weaving or knitting such yarn-based battery assemblies into a textile material, such as using industrial weaving or knitting machines, hand weaving or knitting processes, etc.Type: GrantFiled: February 14, 2018Date of Patent: October 20, 2020Assignee: City University of Hong KongInventors: Chunyi Zhi, Yan Huang, Zijie Tang
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Patent number: 10811666Abstract: An insulating casing for battery terminals including a base and a top cover, wherein the base is engaged with a battery pack and includes a bottom plate. The bottom plate has a plurality of perforations adapted to be passed through by the terminals of the battery pack. The top cover is detachably engaged with the base, and a chamber communicating with the perforations is formed between the top cover and the base, and the terminals are received into the chamber whereby an insulating casing to protect the terminals of the battery pack is provided.Type: GrantFiled: April 24, 2018Date of Patent: October 20, 2020Assignee: MOBILETRON ELECTRONICS CO., LTD.Inventor: Ming-Hung Hsu
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Patent number: 10804571Abstract: A method of manufacturing a battery cell is provided. The battery cell has an electrode assembly with a plurality of unit cells that a cathode plate and an anode plate coupled to a separator. A separation sheet or a separator is interposed therebetween. The method includes applying an electrode active material a side of a current collector to manufacture a cathode plate and an anode plate and forming an electrode tab by notching the uncoated portion of the exterior periphery the current collector in the cathode plate and the anode plate where an electrode active material is not coated while forming an aperture. The aperture penetrates through an active material coating layer and the current collector in the coated portion. The method further includes coupling the cathode plate and the anode plate to a separator at a position to allow communication of the apertures to manufacture a unit cell.Type: GrantFiled: November 20, 2017Date of Patent: October 13, 2020Assignee: LG Chem, Ltd.Inventors: Hyun Gyu Han, Ji Young Kim, Dae Sik Choi
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Patent number: 10804536Abstract: Substituted ?-MnO2 compounds are provided, where a portion of the Mn is replaced by at least one alternative element. Electrochemical cells incorporating substituted ?-MnO2 into the cathode, as well as methods of preparing the substituted ?-MnO2, are also provided.Type: GrantFiled: February 13, 2018Date of Patent: October 13, 2020Assignee: Energizer Brands, LLCInventors: George Louis Schimek, Robert M. Estanek, Steven J. Limmer, Guanghong Zheng
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Patent number: 10784491Abstract: A battery terminal includes a main body in which a battery post is inserted and a fastener having a pair of fastening abutting portions. The main body has a notch portion provided in at least an end in a fastening direction, accommodating and positioning one of the pair of fastening abutting portions. An abutting-portion-side opposite surface on the fastening abutting portion side and a notch-portion-side opposite surface on the notch portion side have respective abutting surfaces. A relief surface is provided on at least one of the abutting-portion-side opposite surface and the notch-portion-side opposite surface such that a relief space is formed with a clearance from the other one of the opposite surfaces.Type: GrantFiled: September 7, 2017Date of Patent: September 22, 2020Assignee: YAZAKI CORPORATIONInventors: Toshiya Sasaki, Takashi Yoshida, Takayuki Kato, Hideto Yoshinaga
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Patent number: 10763551Abstract: A method of fabricating an energy storage device (1) comprising forming a stack comprising at least a first electrode layer (6), a first current collecting layer (12) and an electrolyte layer 8 disposed between the first electrode layer (6) and the first current collecting layer (12). Forming a first groove (24) in the stack through the first electrode layer (6) and the electrolyte layer (8), thereby forming exposed edges of the first electrode layer 6 and the electrolyte layer (8). Filling at least part of the first groove (24) with an electrically insulating material thereby covering the exposed edges of the first electrode layer (6) and the electrolyte layer (8) with the insulating material. Cutting through the insulating material and the first current collecting layer (12) along at least part of the first groove (24) in order to form an exposed edge of the first current collecting layer (12).Type: GrantFiled: March 2, 2017Date of Patent: September 1, 2020Assignee: Dyson Technology LimitedInventor: Michael Edward Rendall
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Patent number: 10727528Abstract: A method of producing a lithium ion secondary battery includes preparing a case in which an electrode group including at least a positive electrode and a negative electrode is accommodated; impregnating a first electrolyte solution into the electrode group, lowering a potential of the negative electrode to a first potential, injecting FEC into a case, and lowering a potential of the negative electrode to a second potential. The negative electrode contains at least graphite and silicon oxide. The first electrolyte solution does not contain FEC. An additive has a reductive decomposition potential of 0.5 V (vs. Li+/Li) or more and 1.5 V (vs. Li+/Li) or less. The first potential is higher than 0.2 V (vs. Li+/Li) and is equal to or lower than the reductive decomposition potential. The second potential is 0.2 V (vs. Li+/Li) or less.Type: GrantFiled: April 25, 2018Date of Patent: July 28, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Iguchi, Hideaki Fujita, Hideki Sano, Kaoru Inoue
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Patent number: 10720673Abstract: A non-aqueous electrolyte secondary battery includes at least an electrode composite material layer, an intermediate layer, and an electrode current collector. The intermediate layer is arranged between the electrode composite material layer and the electrode current collector. The intermediate layer contains at least a foaming filler, a resin, and a conductive material. A value calculated by dividing an amount (mass %) of the foaming filler by an amount (mass %) of the resin is not smaller than 1.1 and not greater than 2.8 and a value calculated by dividing an amount (mass %) of the foaming filler by an amount (mass %) of the conductive material is not smaller than 8 and not greater than 14. The intermediate layer has a thickness not smaller than 2 ?m and not greater than 7 ?m.Type: GrantFiled: October 23, 2018Date of Patent: July 21, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Torita, Keiichi Takahashi, Yusuke Fukumoto
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Patent number: 10700317Abstract: A battery module includes a housing having an opening and an electrochemical cell disposed in the housing. The electrochemical cell includes a first cell surface having electrode terminals and an second cell surface substantially opposite the first cell surface. The battery module also includes a heat sink integral with the housing and disposed substantially opposite the opening of the housing and a thermally conductive adhesive bonded to the second cell surface and a heat sink surface that is facing the second cell surface. The thermally conductive adhesive includes a bonding shear strength and bonding tensile strength between the electrochemical cell and the heat sink of between approximately 5 megaPascals (MPa) and 50 MPa.Type: GrantFiled: July 31, 2015Date of Patent: June 30, 2020Assignee: CPS Technology Holdings, LLCInventors: Matthew R. Tyler, Xugang Zhang
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Patent number: 10686227Abstract: This disclosure provides systems, methods, and apparatus related to Li-ion batteries. In one aspect an electrolyte structure for use in a battery comprises an electrolyte and an interconnected boron nitride structure disposed in the electrolyte.Type: GrantFiled: November 27, 2017Date of Patent: June 16, 2020Assignee: The Regents of the University of CaliforniaInventors: Onur Ergen, Alexander K. Zettl
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Patent number: 10680283Abstract: A lithium metal battery is disclosed. The lithium battery comprising a Li metal anode, a cathode and an electrolyte in between the Li metal anode and the cathode wherein the electrolyte includes immobilized anions at least at the interface between the Li metal anode and the electrolyte to maintain the anionic concentration at the interface above zero throughout the charge-discharge cycles thereby preventing surface potential instability at the interface of the Li metal anode and electrolyte.Type: GrantFiled: December 6, 2017Date of Patent: June 9, 2020Assignee: BLUE SOLUTIONS CANADA INC.Inventors: Patrick Leblanc, Frederic Cotton, Alain Vallee, Cedric Reboul-Salze
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Patent number: 10669612Abstract: A calcium-free lead alloy comprises lead and 0.003 wt %-0.025 wt % of at least two rare-earth metals. The rare-earth metals are at least a lanthanide and yttrium. Uses of the lead alloy include an electrode with an electrode structure, which is at least partly formed of the lead alloy and a lead-acid accumulator with the electrode.Type: GrantFiled: July 30, 2019Date of Patent: June 2, 2020Assignee: Hoppecke Batterien GmbH & Co. KGInventors: Eduardo Cattaneo, Bernhard Riegel
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Patent number: 10673098Abstract: A core (u1, u2) around which a nonaqueous electrolyte secondary battery separator is to be wound. A side surface of the core (u1, u2) has a depression (20). This makes it possible, in a case where cores (separator cores) are stored by being stacked while still wet after cleaning, to prevent damage to a core caused by a problem where cores stick together and an core lower in a stack falls when a core higher in the stack is removed.Type: GrantFiled: November 8, 2018Date of Patent: June 2, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Daizaburo Yashiki, Daijiro Hoshida
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Patent number: 10665891Abstract: The present invention provides a lithium-sulfur thermal battery including: a positive electrode including sulfur (S8) or a sulfur compound, and a solid electrolyte including a lithium salt and a polymer having a melting point lower than a melting point of a negative electrode; a lithium metal negative electrode or lithium alloy; a solid electrolyte membrane disposed between the positive electrode and the negative electrode and including a lithium salt and a polymer having a melting point lower than a melting point of the lithium metal negative electrode or lithium alloy; and a heater configured to provide heat so that the polymer is melted.Type: GrantFiled: January 26, 2017Date of Patent: May 26, 2020Assignee: J-INNOTECH CO., LTDInventors: Yong Ju Jung, Hye Jeong Yang, Tae Hyeon Yang, Ji Hun Kang, Jin Kyeong Kang, Jong Won Park
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Patent number: 10665889Abstract: Provided is an electrode stack formed by integrating a first separator, a first electrode plate, a second separator, and a second electrode plate. The first separator has a first separator body, and a first bonding layer that is formed on a principal surface of the first separator body and contains first polyethylene particles. The second separator has a second separator body, and a second bonding layer that is formed on a principal surface of the second separator body and contains second polyethylene particles. The number of particles of the first polyethylene particles per unit area of the first bonding layer is larger than the number of particles of the second polyethylene particles per unit area of the second bonding layer.Type: GrantFiled: April 25, 2018Date of Patent: May 26, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Kuhara
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Patent number: 10637105Abstract: A battery embedded structure is disclosed. The battery embedded structure comprises a substrate including one or more stacked battery units. Each stacked battery unit includes two or more conductive layers and one or more unit cells. Each unit cell is disposed between two conductive layers. The substrate has a principal surface provided by one or more respective side surfaces of the one or more stacked battery units. The battery embedded structure also comprises a wiring layer disposed on the principal surface of the substrate. The wiring layer includes a plurality of electrical paths and a plurality of vias. Each via is connected with one electrical path. Each via is located at a position corresponding to an edge surface of a conductive layer of the two or more conductive layers of the one or more stacked battery units so as to contact electrically to that conductive layer.Type: GrantFiled: September 7, 2017Date of Patent: April 28, 2020Assignee: International Business Machines CorporationInventors: Keiji Matsumoto, Hiroyuki Mori
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Patent number: 10622670Abstract: The present invention relates to a positive electrode active material for a secondary battery, which comprises a core including a lithium composite metal oxide, and a surface treatment layer located on a surface of the core and including an amorphous oxide, wherein the amorphous oxide including silicon (Si), nitrogen (N) and at least one metal element selected from the group consisting of a Group 1A element, a Group 2A element, and a Group 3B element, and a method for preparing the same.Type: GrantFiled: February 14, 2018Date of Patent: April 14, 2020Assignee: LG Chem, Ltd.Inventors: Dae Jin Lee, Dong Hun Lee, Ji Hoon Ryu, Gi Beom Han, Dong Hwi Kim, Wang Mo Jung, Sang Wook Lee
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Patent number: 10581119Abstract: Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator disposed therebetween. At least one transition metal ion-trapping moiety, including one or more polymers functionalized with one or more trapping groups, may be included within the electrochemical cell as a coating, pore filler, substitute pendant group, or binder. The one or more trapping groups may be selected from the group consisting of: crown ethers, siderophores, bactins, ortho-phenanthroline, iminodiacetic acid dilithium salt, oxalates malonates, fumarates, succinates, itaconates, phosphonates, and combinations thereof, and may bind to metal ions found within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode.Type: GrantFiled: July 7, 2017Date of Patent: March 3, 2020Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ion C. Halalay, Zicheng Li, Timothy J. Fuller, Bob R. Powell, Jr.