Patents Examined by Ling R Zeng
  • Patent number: 9147889
    Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: September 29, 2015
    Assignees: Hyundai Motor Company, Korea Advanced Institute of Science and Technology
    Inventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh
  • Patent number: 9112197
    Abstract: A Fuel Cell Motor, or, Fuel Cell Engine, and system are described. A central output shaft is mounted with a novel set of rotationally capable fuel cells, of various shapes and configurations. These fuel cells when supplied by hydrogen and oxygen fuels generate electricity. That electricity so generated is channeled to electromagnet winding poles that are mounted on top of these rotationally capable fuel cells and also to the nearby stator electromagnetic poles. The current in the armature electromagnet poles produces magnetic fields which interacts with the congruent magnetic fields produced by the stator electromagnetic winding poles, to cause a rotational motion on the armature poles, adjoined to the central output shaft; henceforth, accomplishing the operations of an electric motor.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: August 18, 2015
    Inventors: Ravindra Kashyap, Govind L. Sahu
  • Patent number: 9099731
    Abstract: A secondary battery including an electrode assembly including a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; a case accommodating the electrode assembly; a cap plate sealing the case; a first electrode terminal electrically connected to the first electrode plate and penetrating through the cap plate; and a safety valve coupled to the first electrode terminal, the safety valve including a bimetal element.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 4, 2015
    Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbH
    Inventors: Jongseok Moon, Sangwon Byun, Seokyoon Yoo, Chiyoung Lee, Yoontai Kwak, Dongwook Kim, Tatsuya Hashimoto
  • Patent number: 9099732
    Abstract: A rechargeable battery including an electrode assembly; a terminal; a fuse, the electrode assembly, the terminal, and the fuse being electrically connected to each other; and an insulating blocking member in operative co-operation with the fuse.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 4, 2015
    Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbH
    Inventors: Sung-Bae Kim, Sang-Won Byun
  • Patent number: 9070947
    Abstract: Provided are a pouch type secondary battery capable of preventing corrosion of a metal layer due to exposure of the metal layer to the outside at a distal end of a case thereof, and a method for manufacturing the same.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 30, 2015
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Gyusik Kim, Jonha Lee, Jaeman Seo
  • Patent number: 9059453
    Abstract: A battery includes a positive electrode, a negative electrode, a separator interposed therebetween, and an electrolyte. The separator includes a plurality of nanofibers and has a form of a sheet having a first surface and a second surface opposite thereto. When the average maximum fiber diameter of the nanofibers in the plane direction of the separator is compared between in vicinities of the first and second surfaces and at a center portion in the thickness direction of the separator, average maximum fiber diameters Ds1 and Ds2 of the nanofibers in the vicinity of the first and second surfaces arc smaller than an average maximum fiber diameter Dc of the nanofibers at the center portion in the thickness direction of the separator.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: June 16, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroto Sumida, Takahiro Kurokawa, Takayoshi Yamaguchi, Takatoshi Mitsushima
  • Patent number: 9034529
    Abstract: A method of operating a fuel cell system in a vehicle that is switchable to a temporary stop mode and restarted from the stop mode. When, in certain driving situations, it is required to switch to the stop mode, it is then checked whether the operating conditions of the fuel cell system allow a switch to the stop mode. If the switch is allowed it takes place. When a restart of the fuel cell system is required on the basis of the vehicle the settings of the stop mode are cancelled again. The switch to the stop mode involves, with further existing electric contacting of the fuel cell, the air mass flow conveyed by the air conveying device being switched off or reduced to a predefined value and the pressure of the combustion gas supplied being reduced to a predefined value.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 19, 2015
    Assignee: Daimler AG
    Inventors: Helmut Mueller, Sven Schmalzriedt, Klaus Weigele
  • Patent number: 9029023
    Abstract: Provided are a multi-layered structure electrolyte including a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte, for a lithium ion secondary battery including positive and negative electrodes capable of intercalating/deintercalating lithium ions, and a lithium ion secondary battery including the electrode. The electrolyte includes a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 12, 2015
    Assignee: Samsung Fine Chemicals Co., Ltd
    Inventor: Shin Jung Choi
  • Patent number: 9023518
    Abstract: A battery includes an anode containing a lithium material, a cathode containing sulfur and a porous conducting medium, and an electrolyte, wherein the electrolyte contains an additive selected from the group consisting of an organic surfactant additive, an inorganic additive, and a mixture thereof. The organic surfactant additive may be a fluorosurfactant.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 5, 2015
    Assignee: Eaglepicher Technologies, LLC
    Inventors: Umamaheswari Janakiraman, Ernest Ndzebet, Thillaiyan Ramanathan, Diana Marmorstein, Mario Destephen, Gregory Miller
  • Patent number: 9023531
    Abstract: Disclosed is a nonaqueous secondary battery (100) comprising a positive electrode (155) having a positive current collector (151) made of a metal, and a positive electrode active material (153) composed of a lithium-metal complex oxide. The surface of the positive electrode active material (153) is coated with a lithium salt (158) having an average thickness of 20-50 nm.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: May 5, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Metal Mining Co., Ltd.
    Inventors: Tomoyoshi Ueki, Yutaka Oyama, Takuichi Arai, Kazuhiro Ohkawa, Koichi Yokoyama, Ryuichi Kuzuo, Katsuya Kase, Syuhei Oda
  • Patent number: 9023537
    Abstract: A positive electrode includes: a positive electrode collector; and a positive electrode active material layer provided on the positive electrode collector and containing a positive electrode active material and an alkaline earth metal carbonate having a fixed form.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Kentaro Yoshimura, Toru Odani, Tadahiko Kubota
  • Patent number: 9012088
    Abstract: An anode composition for a lithium secondary battery is provided. The anode composition comprises an anode active material, a conductive material, and an acrylonitrile-acrylic acid copolymer with a high molecular weight as a binder. The acrylonitrile-acrylic acid copolymer has a molar ratio of acrylonitrile to acrylic acid of 1:0.01-2. Further provided are a method for preparing the anode composition and a lithium secondary battery using the anode composition. The binder has improved resistance to an electrolyte solution due to its enhanced adhesive strength. In addition, the use of the anode composition prevents the active material layer from being peeled off or separated from a current collector during charge and discharge to achieve improved capacity and cycle life characteristics of the battery.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: April 21, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Eun Suok Oh, Young Min Kim, Ok Sun Kim, Min Ah Kang
  • Patent number: 8993199
    Abstract: Provided is a flexible carbon fiber nonwoven fabric which has resistance to bending, is flexible, and exhibits excellent processability.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 31, 2015
    Assignee: Nisshinbo Holdings, Inc.
    Inventor: Naokazu Sasaki
  • Patent number: 8974938
    Abstract: A battery system is provided. The battery system includes a first battery cell assembly having first and second interconnect members. The first and second interconnect members have first and second blades, respectively. The battery system further includes an electrically non-conductive base member having first and second grooves. The battery system further includes first and second bus bar members disposed in the first and second grooves, respectively. The first bus bar member has a first aperture configured to removably receive the first blade therein. The second bus bar member has a second aperture configured to removably receive a second blade therein.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventor: Josh Payne
  • Patent number: 8974934
    Abstract: A battery module is provided. The battery module includes a battery cell and a heat exchanger disposed adjacent to the battery cell. The battery module further includes a cooling manifold having a tubular wall, a first fluid port, and a ring shaped member. The tubular wall defines an interior region and having first and second end portions. The first fluid port extends outwardly from an outer surface of the tubular wall and fluidly communicates with the interior region of the tubular wall. The ring shaped member is disposed on an outer surface of the first fluid port a predetermined distance from the outer surface of the tubular wall.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Robert Merriman, Thomas J. Gadawski, Josh Payne
  • Patent number: 8927137
    Abstract: A battery matrix provided with a plurality of battery cells; each of the battery cells provided with a positive terminal and a negative terminal. A positive trace grid and a negative trace grid, each provided as a conductive mesh with an array of apertures forming a plurality of alternative conductive paths across each of the positive and negative trace grids. Each of the battery cells coupled at the positive terminal to a positive trace pad of the positive trace grid and at the negative terminal to a negative trace pad of the negative trace grid. Alternatively, an intermediate trace grid may be introduced so that successive rows of the battery cells are coupled electrically in series with one another.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: January 6, 2015
    Assignee: Microsun Technologies LLC
    Inventors: Ilyas Ayub, Kenneth Habegger, Matthew Umles, William Mark Batts, Albert Hopfer
  • Patent number: 8877390
    Abstract: Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: November 4, 2014
    Assignee: UChicago Argonne, LLC
    Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
  • Patent number: 8871402
    Abstract: In a fuel cell system, it is possible to suppress fixation of a fluid circulating device arranged in a fluid passage connected to a fuel cell main body. The fuel cell system is provided with a fuel cell stack, a system main body having respective elements for supplying a fuel gas and respective elements for supplying an oxidizing gas, and a control device. The control device includes a fluid circulating device drive processing unit having a function to forcibly drive the fluid circulating device after determining, based on a judgment related to one or more of a non-use time, an operation state of the system main body, a membrane impedance state of a fuel cell, a temperature of the fuel cell stack, and a background noise, whether or not forced driving to suppress sticking of the fluid circulating device is preferable at that time.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: October 28, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigeto Kajiwara, Tetsuya Bono
  • Patent number: 8835058
    Abstract: A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a dry-stretching process or by a wet process.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Hamid G. Kia, Xiaosong Huang, Mark W. Verbrugge
  • Patent number: 8828602
    Abstract: A secondary battery including: an electrode assembly including a plurality of first and second electrode plates and a plurality of separators between the first and second electrode plates; a first electrode tab on each of the first electrode plates; a second electrode tab on each of the second electrode plates; a case housing the electrode; and first and second electrode leads at an outer side of the case and electrically coupled to the first and second electrode tabs, respectively, wherein the first and second electrode leads and the first and second electrode tabs are respectively electrically coupled by bolts.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 9, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Changbum Ahn, Youngbae Sohn