Patents Issued in August 28, 2014
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Publication number: 20140242448Abstract: Provided is a small-sized cylindrical battery in which improvement in battery characteristics and improvement in long-term reliability and safety are both realized. The cylindrical battery includes: a bottomed cylindrical battery case 1, an electrode group 5 housed together with an electrolyte in the battery case 1, a sealing member 8 fitted into an opening of the battery case 1, and a gasket 9 interposed between the sealing member 8 and the battery case 1. The opening of the battery case 1 is sealed by applying a drawing process to an opening end portion of the battery case 1. The battery case 1 is constituted of stainless steel. The battery case 1 has an outer diameter of 10 mm or less and a thickness of 0.05 mm or more and 0.2 mm or less.Type: ApplicationFiled: March 29, 2013Publication date: August 28, 2014Inventors: Akira Kakinuma, Keisuke Yoneda, Kenjin Masumoto
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Publication number: 20140242449Abstract: An embodiment of the present invention provides a pack case for a battery, which has a simplified structure by increasing an internal coupling force and can increase a life span of a mold. In one embodiment, the pack case includes a first case and a second case to accommodate a plurality of battery cells therein, wherein the first case includes a first coupling member having a link hole formed at its edge, and the second case includes a second coupling member having a guide member and a locking ledge formed at its edge, so that the first coupling member moves along the guide member of the second coupling member, and the link hole of the first coupling member is engaged with the locking ledge of the second coupling member.Type: ApplicationFiled: July 23, 2013Publication date: August 28, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Jaewook Lee, Younho Lee, Yongwoo Kim, Sukhwan Lee
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Publication number: 20140242450Abstract: A packaging material for a power storage device includes: a base material layer that is configured to include a resin film; a base material protective layer that becomes an outermost layer, protects the base material layer, and is configured to include a urethane resin and a filler; a sealant layer that becomes an innermost layer; a metal foil layer that is disposed between the base material layer and the sealant layer; and an adhesive that contains a pigment, wherein the base material layer adheres to the metal foil layer via the adhesive by dry lamination.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: TOPPAN PRINTING CO., LTD.Inventors: Naoto OONO, Kazuki NISHIJIMA, Koji MURATA, Yu OGIHARA
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Publication number: 20140242451Abstract: A nonaqueous electrolytic secondary battery of excellent characteristics is provided. The nonaqueous electrolytic secondary battery includes: a positive electrode case; a negative electrode case fixed to the positive electrode case, and that forms a storage space with the positive electrode case in between the negative electrode case and the positive electrode case; a positive electrode portion provided on the positive electrode case in the storage space, and that contains a lithium compound as positive electrode active material; a negative electrode portion provided on the negative electrode case in the storage space, and that contains SiOx (0?x<2) as negative electrode active material; and a nonaqueous electrolyte stored inside the storage space. The negative electrode case includes a base layer, and a nickel layer disposed opposite the storage space with respect to the base layer, and that has a higher thermal conductivity than the base layer, and a thickness of 2.6 ?m or more.Type: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: Seiko Instruments Inc.Inventors: Takumi SAWAYAMA, Tadahito SUZUKI, Ken MIURA
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Publication number: 20140242452Abstract: A lithium-ion cell has a positive electrode comprising at least one active material comprising a lithium transition metal compound in a binder comprising at least one binder material with functional groups selected from alkali and alkaline earth salts of acid groups and hydroxyl groups, amine groups, isocyanate groups, urethane groups, urea groups, amide groups, and combinations of these; a negative electrode comprising metallic lithium or a lithium host material with appropriately low operation voltage vs. metallic lithium; a nonaqueous solution of a lithium salt; and an electrically nonconductive, ion-pervious separator positioned between the electrodes.Type: ApplicationFiled: February 27, 2013Publication date: August 28, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Nicholas P. W. Pieczonka, Junghyun Kim, Zicheng Li, Timothy J. Fuller, Nicholas P. Irish, Bob R. Powell, JR., Ion C. Halalay
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Publication number: 20140242453Abstract: An electrolyte for a rechargeable lithium battery including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a rechargeable lithium battery including the same.Type: ApplicationFiled: January 23, 2014Publication date: August 28, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Seung-Tae Lee, Jung-Yi Yu, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Duck-Hyun Kim, Myung-Hwan Jeong, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, In-Haeng Cho, E-Rang Cho, Dong-Myung Choi, Vladimir Egorov, Makhmut Khasanov, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov
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Publication number: 20140242454Abstract: An electrolyte solution usable in a lithium or lithium-ion battery, among other types of batteries that offers one or more of the following: improved stability (e.g., stable discharge capacities even after several cycles), elimination of the risk of unintentionally producing hydrochloric acid, improved thermal stability, and reduced production costs associated with manufacturing a battery. Indeed, the inventors have discovered an unexpected result that by including an additive to a dinnimitride salt (e.g., LiDN), the discharge capacity of the battery may improve beyond what is available in the prior art, including LiPF6. For example, production costs may be decreased since LiDN is not water-sensitive, so precautions to ensure that the compound is not exposed to water may be avoided. Further benefits include thermal stability since LiDN may be more thermally stable when compared to LiPF6.Type: ApplicationFiled: May 6, 2014Publication date: August 28, 2014Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Monique N. Richard, Alvaro Masias
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Publication number: 20140242455Abstract: Provided are a Si/C composite, in which carbon (C) is dispersed in an atomic state in a silicon (Si) particle, and a method of preparing the Si/C composite. Since the Si/C composite of the present invention is used as an anode active material, electrical conductivity may be further improved and volume expansion may be minimized. Thus, life characteristics of a lithium secondary battery may be improved.Type: ApplicationFiled: May 8, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Ji Hoon Ryu, Hong Kyu Park, Wang Mo Jung, Sung Joong Kang, Chi Ho Jo, Gi Beom Han
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Publication number: 20140242456Abstract: The invention provides a nonaqueous electrolyte for batteries and a nonaqueous secondary battery using the same which maintains small internal resistance and high electric capacity in high temperature storage. The nonaqueous electrolyte has an electrolyte salt, a compound of general formula (1), and a compound of general formula (2) dissolved in an organic solvent. The ratio of the compound of formula (2) to the sum of the compound of formula (1) and the compound of formula (2) is 0.1 to 8 mass %. In the formulae, R1, R2, R3, and R4 each independently represent C1-C8 alkyl.Type: ApplicationFiled: November 1, 2012Publication date: August 28, 2014Inventors: Takayuki Taki, Hiroaki Watanabe, Atsuki Shibuya, Akiko Tasaki
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Publication number: 20140242457Abstract: An aluminum ion battery includes an aluminum anode, a vanadium oxide material cathode and an ionic liquid electrolyte. In particular, the vanadium oxide material cathode comprises a monocrystalline orthorhombic vanadium oxide material. The aluminum ion battery has an enhanced electrical storage capacity. A metal sulfide material may alternatively or additionally be included in the cathode.Type: ApplicationFiled: September 26, 2012Publication date: August 28, 2014Applicant: CORNELL UNIVERSITYInventors: Lynden A. Archer, Shyamal Kumar Das, Jayaprakash Navaneedhakrishnan
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Publication number: 20140242458Abstract: Provided is a negative electrode for a nonaqueous secondary battery which achieves both suppression of reductive decomposition of an electrolyte or an electrolytic solution and suppression of an increase in resistance. Also provided are a method for producing such a negative electrode and a nonaqueous secondary battery employing such a negative electrode. A polymer coating layer is formed so as to coat at least part of surfaces of negative electrode active material particles containing silicon oxide (SiOx; 0.5?x?1.6). The polymer coating layer contains a cationic polymer having a positive zeta potential under neutral conditions. Since silicon oxide has a negative zeta potential, a thin uniform coating layer can be formed owing to Coulomb's force.Type: ApplicationFiled: February 12, 2014Publication date: August 28, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomokuni ABE, Hiroki Oshima, Yuya Sato, Kisena Yoshida, Nobuhiro Goda, Manabu Miyoshi
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Publication number: 20140242459Abstract: An electrode 10 for battery comprises: a base member 11 which serves as a current collector; and an active material layer 12 of an active material which is formed by a plurality of active material lines extending on a surface of the base member 11 along a predetermined longitudinal direction, wherein the active material lines include first lines 121 whose width in orthogonal cross section to the longitudinal direction is a first width W1 and second lines 122 whose width is a second width W2 which is wider than the first width W1 and whose height H2 measured from the surface of the base member is equal to or higher than a height H1 of the first lines.Type: ApplicationFiled: October 31, 2013Publication date: August 28, 2014Applicant: DAINIPPON SCREEN MFG. CO., LTD.Inventor: Masakazu SANADA
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Publication number: 20140242460Abstract: Disclosed are an anode active material for lithium secondary batteries and a method for manufacturing same, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Sang-Wook Woo, Je-Young Kim
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Publication number: 20140242461Abstract: An anode for a lithium secondary battery including: a composite anode active material including an anode active material, and a water-soluble polymer disposed on a surface of the anode active material; and a binder disposed on the composite anode active material, the binder including one or more selected from a polyimide, a polyamideimide, a polyamide, and a polyetherimide.Type: ApplicationFiled: November 14, 2013Publication date: August 28, 2014Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.Inventors: Seung-sik HWANG, Hyung-wook HA, Jin-hwan PARK, Hee-chul JUNG
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Publication number: 20140242462Abstract: Methods for coating a metal substrate with electrically conductive dots or splats of active materials for use in battery applications that improve the corrosion resistant metallic component electrode activity, or electrical conductivity of those components at reduced or lower costs.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: Treadstone Technologies, Inc.Inventor: Conghua WANG
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Publication number: 20140242463Abstract: The present invention provides a positive active material for a secondary lithium battery, a method of preparing the positive active material, and a secondary lithium battery including the positive active material, wherein the positive active material includes a lithium metal composite oxide core represented by the following Chemical Formula 1, and a coating layer including a fluorine compound and positioned at a shell of the lithium metal composite oxide core. LiwNixCoyMn1-x-y-zMzO2??[Chemical Formula 1] (1.2?w?1.5, 0<x<1, 0?y<1, 0.5?1-x-y-z, and M is at least one metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr).Type: ApplicationFiled: September 18, 2012Publication date: August 28, 2014Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Jun Ho Song, Young Jun Kim, Jeom-Soo Kim, Woo Suk Cho, Jae-Hun Kim, Jin Hwa Kim
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Publication number: 20140242464Abstract: Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters.Type: ApplicationFiled: March 28, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Sung Kyun Chang, Seo-Jae Lee, Sanghoon Choy, Euiyong Bang, Minchul Jang, Ki-Young Lee
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Publication number: 20140242465Abstract: A lithium-ion storage battery includes LiFePO4 as an active material for a positive electrode, an active material for a negative electrode having a lithium insertion/extraction potential equal to or greater than 0.5 V vs. Li+/Li, and a separating element placed between the positive and negative electrodes. The active material for the negative electrode is a lithiated titanium oxide, a derivative of a lithiated titanium oxide, a non lithiated titanium oxide, a derivative of a non lithiated titanium oxide or a mixture thereof. The separating element is formed from a non-woven fabric comprising cellulose fibers or glass fibers of nanometric and/or micrometric size.Type: ApplicationFiled: April 1, 2014Publication date: August 28, 2014Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Marianne CHAMI, Sebastien MARTINET, Florence MASSE
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Publication number: 20140242466Abstract: According to one embodiment, there is provided a battery including a positive electrode, and a negative electrode. The positive electrode contains a lithium-cobalt composite oxide and a lithium-manganese composite oxide. The negative electrode contains a lithium titanium composite oxide. The battery satisfies the following formula (1). In addition, an open circuit voltage (OCV) of the positive electrode when the battery is discharged to 1.8 V at 0.2 C is 3.6 V (Li v.s. Li+) or more. (Qp/Qn)>1.1??(1) Qp is a charge capacity (mAh/m2) of the positive electrode per unit area, and Qn is a charge capacity (mAh/m2) of the negative electrode per unit area.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yasuaki Murashi, Hidetoshi Watanabe, Koji Takazawa, Yoshinao Tatebayashi
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Publication number: 20140242467Abstract: This invention provides a secondary battery that comprises a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and a non-aqueous electrolyte comprising a supporting salt. The positive electrode active material is a manganese phosphate compound represented by the next general formula: NaxMnPO4F. Herein, x satisfies 2.02<x?2.50. Mn may be partially substituted with one, two or more species of metal selected from Al, Mg and Ti.Type: ApplicationFiled: August 2, 2012Publication date: August 28, 2014Inventor: Masafumi Nose
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Publication number: 20140242468Abstract: A composite positive active material including an over-lithiated lithium transition metal oxide, the over-lithiated transition metal oxide including a compound represented by Formula 1 or Formula 3: [Formula 1] xLi2-yM?yMO3-(1-x)LiM?O2, [Formula 3] xLi2-yM?yMO3-x?LiM?O2-x?Li1+dM??2-dO4, x+x?+x?=1, 0<x<1, 0<x?<1, 0<x?<1, 0<y?1, and 0?d?0.33, is disclosed. A positive electrode and a lithium battery containing the composite positive active material, and a method of preparing the composite positive active material are also disclosed.Type: ApplicationFiled: August 1, 2013Publication date: August 28, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Jay-Hyok Song, Jun-Seok Park, Evgeniya Matulevich, Chang-Wook Kim, Yong-Chan You, Sun-Ho Kang
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Publication number: 20140242469Abstract: Provided is a negative electrode active material containing SiOx and carbonaceous particles containing graphite and having both good discharge capacity and good electric conductivity. Also provided is a negative electrode using the negative electrode active material and a nonaqueous electrolyte secondary battery. When the carbonaceous particles have an average particle diameter D50 of ? (?m) and a BET specific surface area of ? (m2/g), the ? and the ? satisfy the following Formulae (1) and (2).Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Megumi YAMAMOTO, Hideaki SHINODA, Hirokuni AKIYAMA, Manabu MIYOSHI
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Publication number: 20140242470Abstract: An adhesive resin composition for a secondary battery for bonding a separator for a secondary battery and an electrode for a secondary battery, wherein the composition comprises an adhesive resin having a unit derived from an aromatic vinyl monomer and having a glass transition temperature of 25° C. or lower.Type: ApplicationFiled: September 24, 2012Publication date: August 28, 2014Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Toshihiko Ogata
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Publication number: 20140242471Abstract: A new battery configuration and process are detailed. The battery cell includes a solid electrolyte configured with an engineered metallization layer that distributes sodium across the surface of the electrolyte extending the active area of the cathode in contact with the anode during operation. The metallization layer enhances performance, efficiency, and capacity of sodium batteries at intermediate temperatures at or below about 200° C.Type: ApplicationFiled: February 25, 2013Publication date: August 28, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jin Yong Kim, Guosheng Li, Xiaochuan Lu, Vincent L. Sprenkle, John P. Lemmon
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Publication number: 20140242472Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.Type: ApplicationFiled: May 14, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
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Publication number: 20140242473Abstract: Provided is an electrolyte solution for a magnesium battery, containing a mesoionic compound represented by the following general formula (1): (in general formula (1), R1 and R2 are each independently a C1-7 hydrocarbyl group or oxygen-containing hydrocarbyl group and X is O or S).Type: ApplicationFiled: February 27, 2014Publication date: August 28, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, National University Corporation Nagoya Institute Of TechnologyInventors: Tsunehisa HIRASHITA, Hirofumi NAKAMOTO
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Publication number: 20140242474Abstract: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.Type: ApplicationFiled: March 11, 2013Publication date: August 28, 2014Applicant: PANASONIC CORPORATIONInventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
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Publication number: 20140242475Abstract: An object of the present invention is to provide a battery having excellent durability at high temperature and high voltage. The present invention is a battery including a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the non-aqueous electrolyte contains (i) a compound represented by the general formula (1): Rf—SO2F??(1) (where Rf is a C1-13 linear or branched fluorine-containing alkyl group optionally containing an ether bond and optionally containing a double bond).Type: ApplicationFiled: October 3, 2012Publication date: August 28, 2014Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Meiten Koh, Aoi Nakazono, Hitomi Miyawaki, Hideo Sakata
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Publication number: 20140242476Abstract: What is provided is an operating battery stack system (24) with interconnector plates (20) and in and out heat transfer fluids (22), where the fluids, which can be liquid or gaseous, function as heat transfer media, to pass between each interconnector plate (20) in countercurrent direction to extract heat from the battery system (24) permitting heat exchange (28) in a direction perpendicular to the fluid (22) flow and plate axis (26) resulting in lowered temperature gradients within the stack.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Inventors: Michael Kühne, Arun K. S. Iyengar
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Publication number: 20140242477Abstract: An object of the present invention is to provide an electrolyte membrane that suppresses swelling and shrinkage caused by water retained in the electrolyte membrane for a solid polymer-type fuel cell, improves the durability of the electrolyte membrane, and obtains excellent power generation characteristics with a low resistance. The electrolyte membrane for a solid polymer-type fuel cell includes, as a reinforcing membrane, a nonwoven fabric composed of an electrolyte material and PVDF bicomponent fibers 2a, thereby improving the durability of the electrolyte membrane. Furthermore, the bicomponent fiber 2a has pores 23 that can effectively retain generated water, thereby improving battery performance under the condition of a low humidity.Type: ApplicationFiled: September 3, 2012Publication date: August 28, 2014Applicant: PANASONIC CORPORATIONInventors: Shinya Kikuzumi, Masahiro Mori
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Publication number: 20140242478Abstract: A redox device, in particular a hydrogen-oxygen redox device, has at least one redox unit, in particular a hydrogen-oxygen redox unit, which is intended for carrying out at least one redox reaction with consumption and/or production of a first gas, in particular hydrogen gas, and/or of a second gas, in particular oxygen gas. The redox device includes at least one residual gas purification unit which frees at least one residual gas in the redox unit of at least one gas impurity at least in at least one rest mode of the redox unit.Type: ApplicationFiled: January 31, 2014Publication date: August 28, 2014Applicant: ASTRIUM GMBHInventors: Walter JEHLE, Joachim LUCAS, Sebastian MARKGRAF
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Publication number: 20140242479Abstract: A redox device, in particular a hydrogen-oxygen redox device, includes at least one redox unit which is provided for carrying out at least one redox reaction with consumption and/or production of a first gas, in particular hydrogen gas, and/or of a second gas, in particular oxygen gas. The redox device includes at least one gas purification unit for freeing the hydrogen gas of contamination by oxygen gas and/or freeing the oxygen gas of contamination by hydrogen gas.Type: ApplicationFiled: February 11, 2014Publication date: August 28, 2014Applicant: Astrium GmbHInventors: Walter JEHLE, Sebastian MARKGRAF, Willigert RAATSCHEN, Joachim LUCAS
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Publication number: 20140242480Abstract: A fuel cell system includes a fuel cell module for generating electrical energy by electrochemical reactions of a fuel gas and an oxygen-containing gas, and a condenser for condensing water vapor in an exhaust gas discharged from the fuel cell module by heat exchange between the exhaust gas and a coolant to collect the condensed water and supplying the collected condensed water to the fuel cell module. The condenser includes an air cooling condenser using the oxygen-containing gas as the coolant and a water cooling condenser using hot water stored in a hot water tank as the coolant. A thermoelectric conversion mechanism for performing thermoelectric conversion by a temperature difference between the exhaust gas and the oxygen-containing gas is provided between the air cooling condenser and the water cooling condenser.Type: ApplicationFiled: August 23, 2012Publication date: August 28, 2014Applicant: HONDA MOTOR CO., LTD.Inventor: Tetsuya Ogawa
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Publication number: 20140242481Abstract: A device for separating a fluid having a water and gas portion in a fuel cell system includes a fluid inlet an a fluid outlet with an outlet valve. The separating device includes a first reservoir region for collecting the water portion of the fluid. The first reservoir region includes a first outlet to feed the water portion in the direction of the fluid outlet. The separating device also includes a second reservoir region having a second outlet that feeds the water portion in the direction of the fluid outlet so that the first reservoir region 19 is connected in series in terms of flow via the second reservoir region with the fluid outlet. In an installation position of the separating device the first outlet is arranged lower than the second outlet so that deposits of the water portion completely covering the first outlet are prevented from flowing away.Type: ApplicationFiled: August 16, 2012Publication date: August 28, 2014Applicant: DAIMLER AGInventors: Michael Procter, Richard Fellows
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Publication number: 20140242482Abstract: Processes and systems for operating molten carbonate fuel cell systems are described herein. A process for operating a molten carbonate fuel cell system includes providing a hydrogen-containing stream comprising molecular hydrogen to an anode portion of a molten carbonate fuel cell; controlling a flow rate of the hydrogen-containing stream to the anode such that molecular hydrogen utilization in the anode is less than 50%; mixing anode exhaust comprising molecular hydrogen from the molten carbonate fuel cell with a hydrocarbon stream comprising hydrocarbons, contacting at least a portion of the mixture of anode exhaust and the hydrocarbon stream with a catalyst to produce a steam reforming feed; separating at least a portion of molecular hydrogen from the steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: SHELL OIL COMPANYInventors: Jingyu CUI, Erik Edwin ENGWALL, John William JOHNSTON, Mahendra Ladharam JOSHI, Scott Lee WELLINGTON
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Publication number: 20140242483Abstract: A solid oxide fuel cell system (10) comprises a solid oxide fuel cell stack (12) and a gas turbine engine (14). The solid oxide fuel cell stack (12) comprises a plurality of solid oxide fuel cells (16). The gas turbine engine (14) comprises a compressor (24) and a turbine (26). The compressor (24) supplies oxidant to the cathodes(22) of the fuel cells (16) via an oxidant ejector (60) and the oxidant ejector (60) supplies a portion of the unused oxidant from the cathodes (22) of the fuel cells (16) back to the cathodes (22) of the fuel cells (16) with the oxidant from the compressor (24). The fuel cell system (10) further comprises an additional compressor (64), an additional turbine (66), a cooler (70) and a recuperator (72). The compressor(24) supplies oxidant via the cooler (70) to the additional compressor(64) and the additional compressor(64) supplies oxidant to the oxidant ejector (60) via the recuperator (72).Type: ApplicationFiled: August 30, 2012Publication date: August 28, 2014Applicant: LG FUEL CELL SYSTEMS, INC.Inventors: Michele Bozzolo, Cristiano Balestrino
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Publication number: 20140242484Abstract: A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, an annular second area disposed around the first area where a heat exchanger is provided, an annular third area disposed around the second area where a reformer is provided, and an annular fourth area disposed around the third area where an evaporator is provided. The fuel cell module includes a first partition plate having first combustion gas holes, a second partition plate having second combustion gas holes, and a third partition plate having third combustion gas holes.Type: ApplicationFiled: December 19, 2012Publication date: August 28, 2014Inventors: Tetsuya Ogawa, Yuki Yoshimine
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Publication number: 20140242485Abstract: A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, an annular second area disposed around the first area where a heat exchanger is provided, an annular third area disposed around the second area where a reformer is provided, and an annular fourth area disposed around the third area where an evaporator is provided. In the first area, the exhaust gas combustor and the start-up combustor are provided coaxially in the same space.Type: ApplicationFiled: December 19, 2012Publication date: August 28, 2014Applicant: HONDA MOTOR CO., LTD.Inventors: Yuki Yoshimine, Tetsuya Ogawa
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Publication number: 20140242486Abstract: The present invention provides an apparatus and method for generating a virtual sound source for monitoring the operating state of a fuel cell stack, which monitors in real time the deviation and deterioration of a plurality of cells in a fuel cell stack during operation, and expresses the results as a chord or different sounds, thus allowing a driver to easily recognize the operating state of the fuel cell stackType: ApplicationFiled: January 29, 2014Publication date: August 28, 2014Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Sae Hoon Kim, Sang Mun Chin, Kwi Seong Jeong
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Publication number: 20140242487Abstract: A fuel cell system includes a control valve for controlling the pressure of anode gas to be supplied to a fuel cell, a buffer unit for storing anode off-gas discharged from the fuel cell, and a start-up anode gas pressure control unit for feeding inert gas in an anode gas flow passage of the fuel cell under pressure to the buffer unit by controlling the pressure of the anode gas to be supplied to the fuel cell when the fuel cell system is started. The start-up anode gas pressure control unit controls the pressure of the anode gas according to a temperature difference between the temperature of the fuel cell and that of the buffer unit.Type: ApplicationFiled: September 20, 2012Publication date: August 28, 2014Applicant: NISSAN MOTOR CO., LTD.Inventor: Hidetaka Nishimura
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Publication number: 20140242488Abstract: The present invention is a solid oxide fuel cell system for generating variable power in response to power demand, having: a fuel cell module; a fuel supply device; a power demand detection device; a controller for controlling the amount of fuel supplied by the fuel supply device based on the power demand, and for setting an extractable current value, being the maximum extractable current value; an inverter for extracting current from the fuel cell module within a range not exceeding the extractable current value; and an extractable current detection device for detecting actual extracted current extracted from the fuel cell module; whereby if certain increase-limiting condition is matched, then even when power demand is rising, the controller maintains the extractable current value at a certain value, or lowers the extractable current value, and does not increase that extractable current value.Type: ApplicationFiled: September 29, 2011Publication date: August 28, 2014Applicant: TOTO LTD.Inventors: Toshiharu Otsuka, Katsuhisa Tsuchiya, Tsukasa Shigezumi, Toshiharu Ooe, Kiyotaka Nakano, Takuya Matsuo
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Publication number: 20140242489Abstract: To provide a solid oxide fuel cell system capable of efficiently and simply controlling a low speed fuel cell module and a high speed inverter. The invention is a solid oxide fuel cell system, comprising: a fuel cell module, a fuel flow regulator unit, a control section comprising a first power demand detection circuit for controlling the fuel supply amount and for setting the value of current extractable from the fuel cell module; an inverter for extracting current from fuel cell module; and a second power demand detection circuit; and having an inverter control section for controlling the inverter independently from the fuel cell controller so that a current responsive to power demand is extracted from the fuel cell module in a range not exceeding the extractable current value input from the fuel cell controller.Type: ApplicationFiled: September 29, 2011Publication date: August 28, 2014Applicant: TOTO LTD.Inventors: Toshiharu Otsuka, Katsuhisa Tsuchiya, Tsukasa Shigezumi, Toshiharu Ooe, Kiyotaka Nakano, Takuya Matsuo
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Publication number: 20140242490Abstract: A power management system 1 comprises: a control unit 540 that performs high-temperature maintaining control maintaining a temperature of an SOFC 110 during an operation within a predetermined temperature range; and a specifying unit 530 that specifies a period during which the high-temperature maintaining control should be performed. The control unit 540 performs the high-temperature maintaining control in the period specified by the specifying unit 530.Type: ApplicationFiled: September 28, 2012Publication date: August 28, 2014Applicant: KYOCERA CORPORATIONInventors: Kazutaka Nakamura, Kenta Okino
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Publication number: 20140242491Abstract: A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor.Type: ApplicationFiled: May 5, 2014Publication date: August 28, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Oliver Maier, Bernd Peter Elgas, Ulrich Dumke, Peter Willimowski
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Publication number: 20140242492Abstract: A spring compression assembly is configured to apply a load to a stack of electrochemical cells. The assembly includes a ceramic leaf spring, a tensioner configured to apply pressure to a first side of the spring and a bottom plate located on a second side of the spring opposite the first side of the spring. The bottom plate is configured to transfer a load from the spring to the stack of electrochemical cells.Type: ApplicationFiled: May 6, 2014Publication date: August 28, 2014Applicant: Bloom Energy CorporationInventors: David Edmonston, Michael Petrucha, Martin Perry, Matthias Gottmann, Dien Nguyen, Emad El Batawi, William David Lyle
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Publication number: 20140242493Abstract: A direct carbon fuel cell DCFC system (5), the system comprising an electrochemical cell, the electrochemical cell (10) comprising a cathode (30), a solid state first electrolyte (25) and an anode (20), wherein, the system further comprises an anode chamber containing a second electrolyte (125) and a fuel (120). The system, when using molten carbonate as second electrolyte, is preferably purged with CO2 via purge gas inlet (60).Type: ApplicationFiled: October 25, 2012Publication date: August 28, 2014Applicant: University Court of the University of St. AndrewsInventors: John Thomas Sirr Irvine, Gael Corre, Cairong Jiang
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Publication number: 20140242494Abstract: A membrane electrode assembly (MEA) with enhanced current density or power density is fabricated using high temperature (HT) proton exchange membrane (PEM). The MEA can be utilized in high temperature PEM fuel cell applications. More specifically, the MEA is modified with the addition of one or more of selected materials to its catalyst layer to enhance the rates of the fuel cell reactions and thus attain dramatic increases of the power output of the MEA in the fuel cell. The MEA has application to other electro-chemical devices, including an electrolyzer, a compressor, or a generator, purifier, and concentrator of hydrogen and oxygen using HT PEM MEAs.Type: ApplicationFiled: May 6, 2014Publication date: August 28, 2014Applicant: TRENERGI CORP.Inventor: Mohammad Allama Enayetullah
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Publication number: 20140242495Abstract: A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode having a first region located adjacent to a fuel inlet and a second region located adjacent to a fuel outlet. The anode electrode includes a cermet having a nickel containing phase and a ceramic phase. The first region of the anode electrode contains a lower ratio of the nickel containing phase to the ceramic phase than the second region of the anode electrode.Type: ApplicationFiled: May 6, 2014Publication date: August 28, 2014Applicant: BLOOM ENERGY CORPORATIONInventor: Emad El Batawi
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Publication number: 20140242496Abstract: A graphene-nanomaterial composite, an electrode and an electric device including the graphene-nanomaterial composite and a method of manufacturing the graphene-nanomaterial composite include a graphene stacked structure including a plurality of graphene films stacked on one another; and a nanomaterial between the plurality of graphene films and bonded to at least one of the plurality of graphene films by a chemical bond.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicants: SAMSUNG CORNING PRECISION MATERIALS CO., LTD., SAMSUNG ELECTRONICS CO., LTD.Inventors: Chong-joon RYU, Nae-young JUNG, Soon-geun KWON, Jae-young CHOI
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COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20140242497Abstract: 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: ApplicationFiled: May 2, 2014Publication date: August 28, 2014Applicants: Hyndai 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