Patents Examined by Ling R Zeng
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Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same
Patent number: 9147889Abstract: 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: GrantFiled: May 2, 2014Date of Patent: September 29, 2015Assignees: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh -
Patent number: 9112197Abstract: 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: GrantFiled: June 17, 2010Date of Patent: August 18, 2015Inventors: Ravindra Kashyap, Govind L. Sahu
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Patent number: 9099731Abstract: 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: GrantFiled: October 15, 2010Date of Patent: August 4, 2015Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbHInventors: Jongseok Moon, Sangwon Byun, Seokyoon Yoo, Chiyoung Lee, Yoontai Kwak, Dongwook Kim, Tatsuya Hashimoto
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Patent number: 9099732Abstract: 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: GrantFiled: April 15, 2011Date of Patent: August 4, 2015Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbHInventors: Sung-Bae Kim, Sang-Won Byun
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Patent number: 9070947Abstract: 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: GrantFiled: July 12, 2013Date of Patent: June 30, 2015Assignee: SK INNOVATION CO., LTD.Inventors: Gyusik Kim, Jonha Lee, Jaeman Seo
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Patent number: 9059453Abstract: 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: GrantFiled: January 16, 2013Date of Patent: June 16, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroto Sumida, Takahiro Kurokawa, Takayoshi Yamaguchi, Takatoshi Mitsushima
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Patent number: 9034529Abstract: 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: GrantFiled: July 19, 2010Date of Patent: May 19, 2015Assignee: Daimler AGInventors: Helmut Mueller, Sven Schmalzriedt, Klaus Weigele
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Patent number: 9029023Abstract: 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: GrantFiled: September 5, 2012Date of Patent: May 12, 2015Assignee: Samsung Fine Chemicals Co., LtdInventor: Shin Jung Choi
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Patent number: 9023518Abstract: 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: GrantFiled: September 14, 2012Date of Patent: May 5, 2015Assignee: Eaglepicher Technologies, LLCInventors: Umamaheswari Janakiraman, Ernest Ndzebet, Thillaiyan Ramanathan, Diana Marmorstein, Mario Destephen, Gregory Miller
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Patent number: 9023531Abstract: 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: GrantFiled: October 17, 2008Date of Patent: May 5, 2015Assignees: 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
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Patent number: 9023537Abstract: 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: GrantFiled: April 6, 2011Date of Patent: May 5, 2015Assignee: Sony CorporationInventors: Kentaro Yoshimura, Toru Odani, Tadahiko Kubota
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Patent number: 9012088Abstract: 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: GrantFiled: August 7, 2008Date of Patent: April 21, 2015Assignee: LG Chem, Ltd.Inventors: Eun Suok Oh, Young Min Kim, Ok Sun Kim, Min Ah Kang
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Patent number: 8993199Abstract: Provided is a flexible carbon fiber nonwoven fabric which has resistance to bending, is flexible, and exhibits excellent processability.Type: GrantFiled: November 16, 2010Date of Patent: March 31, 2015Assignee: Nisshinbo Holdings, Inc.Inventor: Naokazu Sasaki
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Patent number: 8974938Abstract: 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: GrantFiled: June 29, 2012Date of Patent: March 10, 2015Assignee: LG Chem, Ltd.Inventor: Josh Payne
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Patent number: 8974934Abstract: 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: GrantFiled: August 16, 2012Date of Patent: March 10, 2015Assignee: LG Chem, Ltd.Inventors: Robert Merriman, Thomas J. Gadawski, Josh Payne
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Patent number: 8927137Abstract: 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: GrantFiled: May 1, 2012Date of Patent: January 6, 2015Assignee: Microsun Technologies LLCInventors: Ilyas Ayub, Kenneth Habegger, Matthew Umles, William Mark Batts, Albert Hopfer
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Patent number: 8877390Abstract: 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: GrantFiled: May 23, 2011Date of Patent: November 4, 2014Assignee: UChicago Argonne, LLCInventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
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Patent number: 8871402Abstract: 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: GrantFiled: September 24, 2008Date of Patent: October 28, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeto Kajiwara, Tetsuya Bono
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Patent number: 8835058Abstract: 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: GrantFiled: December 21, 2010Date of Patent: September 16, 2014Assignee: GM Global Technology Operations LLCInventors: Hamid G. Kia, Xiaosong Huang, Mark W. Verbrugge
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Patent number: 8828602Abstract: 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: GrantFiled: November 29, 2010Date of Patent: September 9, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Changbum Ahn, Youngbae Sohn