Patents Examined by Basia Ridley
  • Patent number: 11367922
    Abstract: Discussed is a secondary battery pack having effectively improved manufacturing efficiency and product durability. In this regard, the secondary battery pack includes: a battery cell; a protection circuit module mounted on a terrace structure where an electrode lead is formed; a holder including a body portion having a plate shape such that the battery cell is mounted on one surface, and a partition wall protruding from the body portion in an upward direction to surround at least a portion of a side portion of the battery cell in a horizontal direction; and an insulating molding member including an electrical insulating material, and including a protecting portion coated on and bonded to at least one region of a printed circuit board and a fixing portion protruding and extending from the protecting portion in a direction where the partition wall is located and fixed to one region of the partition wall.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 21, 2022
    Inventor: Sung-Ho Choi
  • Patent number: 11329306
    Abstract: The present disclosure relates to a cell stacking apparatus for a second battery and a system for manufacturing a secondary battery. The cell stacking apparatus includes a grip part configured to hold and move an electrode-separator assembly having a plurality of positive electrode plates and a plurality of negative electrode plates, in which each of the plurality of positive electrode plates and each of the plurality of negative electrode plates are respectively bonded to opposing surfaces of a separator, and a stacking part including a stack plate movable in a cell stacking direction. The stacking part is configured to fold and stack the electrode-separator assembly on the stack plate, and to move the stack plate downward to fold the electrode-separator assembly in zigzags when the grip part holds and moves the electrode-separator assembly to the stack plate.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 10, 2022
    Inventor: Se Ho Kwon
  • Patent number: 11318849
    Abstract: A battery for a motor vehicle has a battery wall that encloses a battery interior, an extinguishing agent reservoir situated in the battery interior, in which an extinguishing agent is accommodated, and at least one battery cell that is situated in the battery interior separate from the extinguishing agent. The extinguishing agent reservoir has a reservoir wall for retaining the extinguishing agent, and the reservoir wall has a first wall temperature at a normal operating temperature of the battery cell and has a second wall temperature at a limiting operating temperature of the battery cell. The reservoir wall is designed to maintain sealtightness for retaining the extinguishing agent at the first wall temperature and to be destroyed by the heat at the second wall temperature. The second wall temperature is greater than the first wall temperature, and the reservoir wall may be brought to the second wall temperature by means of the battery cell of the battery.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 3, 2022
    Inventors: Ahmed Soliman, Bastian Schaar
  • Patent number: 11296327
    Abstract: A positive electrode active material contains at least: fluorine in an amount not lower than 0.08 mass %; carbon in an amount not lower than 0.02 mass %; and lithium-metal composite oxide particles making up the remainder. The lithium-metal composite oxide particles contain nickel in an amount not lower than 60 mol % of the total amount of metallic elements. At least a partial amount of each of the fluorine and the carbon is present on surfaces of the lithium-metal composite oxide particles.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: April 5, 2022
    Inventors: Kunimitsu Yamamoto, Yoshinari Makimura
  • Patent number: 11283071
    Abstract: A cathode active material with high durability and a lithium ion secondary battery. The cathode active material is a cathode active material represented by a general formula Li(1+a)NixCoyMnzWtO2 (?0.05?a?0.2, x=1?y?z?t, 0?y<1, 0?t<1, 0<t?0.03), wherein the cathode active material satisfies the following formula (1): ?1/t1?0.92??(1) where t1 is an element concentration average of insides and grain boundaries of primary particles of a W element, and ?1 is an element concentration standard deviation of the insides and grain boundaries of the primary particles of the W element.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: March 22, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Nichia Corporation
    Inventors: Hajime Hasegawa, Keisuke Omori, Masato Hozumi, Masashi Kodama, Takumi Tanaka, Hideki Yoshida, Masato Sonoo, Yuuki Maeda
  • Patent number: 11258127
    Abstract: The disclosure relates to a system comprising a holder and stored energy sources which can be placed in the holder, in particular rechargeable batteries, each having a casing which has side walls and in which are placed electrode plates oriented parallel to the side walls and nonwoven materials containing a bound electrolyte, the electrode plates being placed between adjacent nonwoven materials. The holder consists of at least two supports placed one above the other to hold stored energy sources in such a manner that the side walls of the casing which are oriented parallel to the electrode plates are oriented substantially horizontally. At least one pressure element is situated between the supports and rests on the side walls of the casing of the stored energy sources and transmits at least the weight force of the stored energy sources situated at the top of the holder to stored energy sources situated underneath the stored energy sources situated at the top.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: February 22, 2022
    Assignee: Hoppecke Batterien GmbH & Co. KG
    Inventor: Heinrich Kesper
  • Patent number: 11223042
    Abstract: The invention provides a method for preparing lithium-containing particles suitable for use in an electrode of a battery, the method including forming a mixture comprising titanium dioxide precursor particles and an aqueous solution of a lithium compound; and heating the mixture at elevated temperature in a sealed pressure vessel in order to form lithium-inserted titanium dioxide particles, wherein at least one particle size characteristic selected from average primary particle size, particle size distribution, average intra-particle pore size, average inter-particle pore size, pore size distribution, and particle shape of the titanium dioxide particles is substantially unchanged by said heating step.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: January 11, 2022
    Assignee: TRONOX LLC
    Inventor: Guoyi Fu
  • Patent number: 11223071
    Abstract: 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: Grant
    Filed: May 7, 2020
    Date of Patent: January 11, 2022
    Assignee: The Regents of the University of California
    Inventors: Onur Ergen, Alexander K. Zettl
  • Patent number: 11217784
    Abstract: Provided is a positive electrode structure for a secondary battery. This positive electrode structure includes: a positive electrode current collector composed of a tabular nickel foam and having a tabular coated portion and an uncoated portion extending from an outer peripheral portion of the coated portion; and a positive electrode active material containing nickel hydroxide and/or nickel oxyhydroxide incorporated into the coated portion of the positive electrode current collector. The positive electrode active material is not present in the uncoated portion of the positive electrode current collector, and the nickel foam constituting the uncoated portion is compressed so as to have a thickness of 0.10 times or more and less than 0.8 times a thickness of the nickel foam constituting the coated portion.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: January 4, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Junki Matsuya, Kenshin Kitoh, Takeshi Yagi
  • Patent number: 11211625
    Abstract: A fuel cell system includes a first fuel cell having a first anode and a first cathode, wherein the first anode is configured to output a first anode exhaust gas. The system further includes a first oxidizer configured to receive the first anode exhaust gas and air from a first air supply, to react the first anode exhaust gas and the air in a preferential oxidation reaction, and to output an oxidized gas. The system further includes a second fuel cell configured to act as an electrochemical hydrogen separator. The second fuel cell includes a second anode configured to receive the oxidized gas from the first oxidizer and to output a second anode exhaust gas, and a second cathode configured to output a hydrogen stream. The system further includes a condenser configured to receive the second anode exhaust gas and to separate water and CO2.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 28, 2021
    Assignee: FuelCell Energy, Inc.
    Inventor: Hossein Ghezel-Ayagh
  • Patent number: 11158882
    Abstract: 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: Grant
    Filed: April 30, 2020
    Date of Patent: October 26, 2021
    Inventors: Patrick Leblanc, Frederic Cotton, Alain Vallee, Cedric Reboul-Salze
  • Patent number: 11101523
    Abstract: The present application relates to a battery pack. The battery pack comprises: two or more battery modules, each of the battery modules comprising a plurality of battery cells which are stacked in sequence, wherein each of the battery cells is provided with an explosion-proof valve; the battery pack further comprising a thermal alarm device and a battery management system, wherein the thermal alarm device is arranged corresponding to the explosion-proof valve; the thermal alarm device and the battery management system are connected to form a circuit; and a break of the circuit can be caused when the explosion-proof valve is exploded. The present application provides the thermal alarm device, and when thermal runaway occurs in the battery module, a circuit break is formed between the thermal alarm device and the battery management system, thus the thermal runaway status of the battery pack can be accurately reflected.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 24, 2021
    Inventors: Xianchun Zhu, Chao Zeng, Hua Cao
  • Patent number: 11031658
    Abstract: A bus bar module includes a plurality of bus bars and a bus bar holder. The bus bar holder is constituted by coupling a plurality of holding portions in a chain manner via deformable coupling portions, respectively, the plurality of holding portions each holding the bus bar in a movable manner in predetermined ranges determined by restriction of movement of the bus bar by interferences with movement restricting members. Openings allowing two contact portions of the bus bar held by the holding portion to be exposed to an outside, the two contact portions being respectively connected to the electrodes of the two adjacent battery cells, are provided in either the holding portion or the coupling portion.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 8, 2021
    Inventors: Katsunori Sato, Yoshiaki Ichikawa, Takao Shoji
  • Patent number: 11018360
    Abstract: The fuel cell system includes a fuel cell, a hydrogen circulation pump, heating portion, and a controller. The hydrogen circulation pump is configured to circulate hydrogen to the fuel cell and includes a cylinder and a rotor accommodated in the cylinder. The heating portion is configured to heat the cylinder. The controller is configured to control an operation of the heating portion. The controller is configured to cause the heating portion to heat the cylinder in a case where a driving state of the hydrogen circulation pump is higher than or equal to a standard driving state.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: May 25, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tomoyuki Kozuka
  • Patent number: 11011772
    Abstract: A fuel cell system includes a fuel cell stack including a plurality of fuel cells positioned between opposing end plates, an anode manifold configured to direct anode gas into or out of the fuel cell stack, a cathode manifold configured to direct cathode gas into or out of the fuel cell stack, and at least one truss attached to an external surface of at least one of the cathode manifold or the anode manifold. The at least one truss is configured to reinforce the fuel cell system.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: May 18, 2021
    Assignee: FuelCell Energy, Inc.
    Inventors: Michael L. Quatannens, Daniela Nedu, Doan Hoang, Robert S. Fournier
  • Patent number: 10938017
    Abstract: A battery module includes plurality of prismatic battery cells. Each prismatic battery cell includes a casing housing electrochemically active components and a cover assembly. The cover assembly includes a cover, a terminal protruding through the cover, a current collector electrically coupled to the terminal, and an overcharge protection assembly between the terminal and current collector. The overcharge protection assembly includes a spiral disk and a vent disk physically and electrically coupled, wherein the vent disk is between the spiral disk and the terminal and includes a concave structure forming a cavity between the vent disk and the terminal. The vent disk is configured to deform into the cavity and break when a pressure within the casing exceeds a threshold value. The spiral disk is configured to apply a shearing force to the vent disk when the vent disk deforms to facilitate the breakage to interrupt electrical current flow.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 2, 2021
    Inventor: Xugang Zhang
  • Patent number: 10930945
    Abstract: A fuel cell system and a control method thereof are provided. The control method includes acquiring a first pressure that corresponds to a pressure in an anode immediately before starting and determining a hydrogen supply target differential pressure value that corresponds to a pressure value boosted in the anode by hydrogen supplied to the anode when starting the system, based on an intensity of the acquired first pressure acquired. An opening degree of a hydrogen supply valve connected to the anode is then adjusted to supply sufficient hydrogen to boost the pressure in the anode that corresponds to the hydrogen supply target differential pressure value.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: February 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyun Jae Lee, Dae Jong Kim
  • Patent number: 10854882
    Abstract: A method of forming an electrode includes attaching a tab to a collector to form a pre-tabbed current collector; disposing the pre-tabbed current collector onto a non-stick substrate to form a workpiece; and casting a slurry onto the workpiece to form a film. The slurry includes an active material component, one or more carbon additives, and at least one of a filamentary copper additive and a dendritic copper additive. The method includes drying the film at a first temperature to form a dried film; curing the dried film under pressure at a second higher temperature to form a cured film; removing the cured film from the non-stick substrate to form a precursor film; and carbonizing and annealing the precursor film at a third higher temperature. Carbonizing forms a three-dimensional electrically-conductive network and annealing forms a second contiguous network of copper connected to the active material component to form the electrode.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 1, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Ion C. Halalay, Raghunathan K
  • Patent number: 10855006
    Abstract: A first coupling body is disposed as part of a housing body, has a bottom part, and has a first and a second vertical wall parts. A second coupling body is formed so as to cover a space between the first vertical wall part and the second vertical wall part in the bottom part inside the housing chamber. The holding mechanism includes a first projection projecting from a first end of the second coupling body toward the first vertical wall part side, a second projection projecting from a second end of the second coupling body toward the second vertical wall part side, a first through-hole that is formed in the first vertical wall part, and a second through-hole that is formed in the second vertical wall part, the first end covering the first vertical wall part, the second end covering the second vertical wall part.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 1, 2020
    Inventors: Shigeyuki Ogasawara, Hideto Masuki
  • Patent number: 10826047
    Abstract: The present disclosure provides a rechargeable battery, including an electrode assembly and a connecting member. The electrode assembly includes an electrode assembly body and an electrode tab extending from the electrode assembly body. The connecting member includes a guiding plate, a first connecting plate and a second connecting plate respectively connected to the guiding plate. The guiding plate extends along a width direction. The first connecting plate extends away from the guiding plate along the width direction. The electrode tab is bent with respect to a longitudinal direction and is connected to the first connecting plate. At least a part of the guiding plate protrudes toward the electrode assembly body with respect to the first connecting plate so as to form a protrusion, which abuts against the electrode assembly. The rechargeable battery of the present disclosure can improve the energy density.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 3, 2020
    Inventors: Zhijun Guo, Jie Zhang, Peng Wang, Taosheng Zhu