Hydrogen Storage Material Is Active Material Patents (Class 429/218.2)
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Patent number: 12134129Abstract: A surface treatment method for a hydrogen absorbing alloy powder of the present disclosure is used for a surface treatment on a hydrogen absorbing alloy powder containing rare earth elements and nickel as constituent elements, including an immersion process in which the hydrogen absorbing alloy powder is immersed in an aqueous alkaline solution; and a removal process in which a liquid containing the hydrogen absorbing alloy powder immersed in the aqueous alkaline solution is introduced into a liquid cyclone, and undesired substances having a smaller specific gravity than the hydrogen absorbing alloy powder adhered to the surface of the hydrogen absorbing alloy powder are removed.Type: GrantFiled: February 8, 2022Date of Patent: November 5, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masashi Kodama, Motoyoshi Okumura
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Patent number: 11990628Abstract: A secondary battery herein disclosed includes a case main body. The case main body accommodates a power generating element in the inside. The case main body includes a first member and a second member. The first member is bottomed cylindrical and formed from one metal plate by a drawing process. The shape of the second member is cylindrical. The second member is joined in a state fitting the second member to a cylindrical portion of the first member.Type: GrantFiled: January 31, 2022Date of Patent: May 21, 2024Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.Inventor: Takahiro Sakurai
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Patent number: 11923582Abstract: Disclosed herein are batteries and methods of making batteries. The batteries disclosed herein generally comprise a cathode, an electrolyte capable of conducting protons and/or hydronium ions, and an anode comprising a material capable of absorbing protons and/or hydronium ions, wherein (i) the cathode is in contact with a cathode substance, or (ii) the electrolyte comprises a reduced cathode substance, or (iii) the cathode is in contact with a cathode substance and the electrolyte comprises a reduced cathode substance, and wherein the cathode substance is an oxide of one or more metals or an oxide of a halide.Type: GrantFiled: October 29, 2019Date of Patent: March 5, 2024Assignee: NEWSOUTH INNOVATIONS, PTY LIMITEDInventors: Chuan Zhao, Haocheng Guo, Yachao Zeng, Wenhao Ren, Zhen Su, Xuancheng Peng
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Patent number: 11913095Abstract: In various embodiments, metallic alloy powders are utilized as feedstock, or to fabricate feedstock, utilized in additive manufacturing processes to form three-dimensional metallic parts. Such feedstock includes composite particles each comprising a mixture and/or alloy of a first constituent metal and one or more second constituent metals, where each of the particles comprises a plurality of grains each surrounded by a matrix, the grains comprising the first constituent metal, and the matrix comprising the one or more second constituent metals.Type: GrantFiled: October 19, 2021Date of Patent: February 27, 2024Assignee: H.C. STARCK SOLUTIONS EUCLID, LLCInventors: Michael T. Stawovy, Scott D. Ohm, Fahrron C. Fill
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Patent number: 11916230Abstract: A negative electrode active material includes a hydrogen storage alloy. The hydrogen storage alloy has an A2B7 crystal structure. The hydrogen storage alloy includes nickel. The saturation magnetization per unit mass is 1.9 emu·g?1 or more.Type: GrantFiled: November 19, 2019Date of Patent: February 27, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Masato Hozumi, Motoyoshi Okumura, Takeo Okanishi, Atsushi Minagata
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Patent number: 11884180Abstract: A battery system includes a nickel-metal hydride battery and an ECU that controls charging and discharging of the nickel-metal hydride battery. The ECU calculates a discharge electricity amount showing an integrated value of a current discharged from the nickel-metal hydride battery, and further calculates ?SOC of the nickel-metal hydride battery in a prescribed time period. The ECU calculates a charge reserve capacity of the nickel-metal hydride battery based on a temperature of the nickel-metal hydride battery, the discharge electricity amount, and the ?SOC.Type: GrantFiled: February 24, 2021Date of Patent: January 30, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, PRIMEARTH EV ENERGY CO., LTD.Inventors: Takayuki Irie, Jun Satoh, Junichi Matsumoto, Daisuke Koba, Yosuke Murota, Kazuki Nakano, Suguru Muraki
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Patent number: 11881591Abstract: A venting device inserted into a sealing part of a pouch of a secondary battery according to an embodiment of the present invention includes: a housing inserted between confronting surfaces of the sealing part so as to be sealed together with the sealing part, the housing being made from a metal plate; a gasket made of a polymer and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a plate spring made of a metal, the plate spring being disposed in the housing and assembled with the gasket, the plate spring being configured to open and close the passage in response to a change in an internal pressure of the pouch, wherein the housing includes a crimping part crimped together with the gasket on an upper end of the housing.Type: GrantFiled: May 5, 2022Date of Patent: January 23, 2024Inventors: Yong Su Choi, Sang Hun Kim, Na Yoon Kim, Hyung Kyun Yu
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Patent number: 11817573Abstract: A nickel-metal hydride secondary battery includes an outer can and a group of electrodes housed in the outer can together with an alkaline electrolytic solution. The group of electrodes includes a positive electrode and a negative electrode that are superposed with a separator interposed therebetween, and the negative electrode includes a hydrogen absorbing alloy for nickel-metal hydride secondary batteries, the hydrogen absorbing alloy having a single composition and composed of a plurality of crystal phases.Type: GrantFiled: August 27, 2021Date of Patent: November 14, 2023Assignee: FDK CORPORATIONInventors: Shota Ohata, Jun Ishida, Yuki Ehara, Masaru Kihara
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Patent number: 11710864Abstract: A method of making a reference electrode assembly for an electrochemical cell according to various aspects of the present disclosure includes providing a subassembly including a separator layer and a current collector layer coupled to the separator layer. The method further includes providing an electrode ink including an electroactive material, a binder, and a solvent. The method further includes creating a reference electrode precursor by applying an electroactive precursor layer to the current collector layer. The electroactive precursor layer covers greater than or equal to about 90% of a superficial surface area of a surface of the current collector layer. The electroactive precursor layer includes the electrode ink. The method further includes creating the reference electrode assembly by drying the electroactive precursor layer to remove at least a portion of the solvent, thereby forming an electroactive layer. The electroactive layer is solid and porous.Type: GrantFiled: May 24, 2022Date of Patent: July 25, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jing Gao, Brian J. Koch, Zhe Li, Alfred Zhang, Gayatri V. Dadheech
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Patent number: 11634321Abstract: The hydrogen storage product comprises one or more reduced-graphene oxide layers functionalized with a boron species and decorated with an alkali or alkaline earth metal. Each layer of the structure further comprises boron-oxygen functional groups comprising oxygen atoms bonded to boron atoms. The hydrogen storage product has a composition suitable for physisorption of hydrogen molecule, and operates to reversibly store hydrogen under operating conditions of low pressure and ambient temperature.Type: GrantFiled: May 18, 2018Date of Patent: April 25, 2023Assignee: HYDROGEN IN MOTION INC. (H2M)Inventors: Pei Pei, Michael Brian Whitwick, Andrey Tokarev, Sahida Kureshi, Erik Kjeang, Mark Cannon, Grace Quan
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Patent number: 11572272Abstract: A process for producing a hydrogen storage means. Separate layers comprising a hydrogen-storing material and a heat-conducting material are introduced into a press mold. The separate layers of the hydrogen-storing material and the heat-conducting material are compressed together to generate a sandwich structure. The heat-conducting material, on use of the sandwich structure as hydrogen storage means, assumes the task of conducting heat.Type: GrantFiled: November 4, 2019Date of Patent: February 7, 2023Assignee: GKN Sinter Metals Engineering GmbHInventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, René Lindenau, Anastasia Özkan, Lars Wimbert
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Patent number: 11515536Abstract: Provided is a multivalent metal-ion battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of a multivalent metal, selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Nb, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof, at the anode, wherein the anode contains the multivalent metal or its alloy as an anode active material and the cathode comprises a cathode layer of an exfoliated graphite or carbon material recompressed to form an active layer that is oriented in such a manner that the active layer has a graphite edge plane in direct contact with the electrolyte and facing or contacting the separator.Type: GrantFiled: February 11, 2020Date of Patent: November 29, 2022Assignee: Global Graphene Group, Inc.Inventors: Aruna Zhamu, Bor Z. Jang
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Patent number: 11489219Abstract: An energy storage device sits within a trench with electrically insulated sides within a substrate. Within the trench there is an anode, an electrolyte disposed on the anode, and a cathode structure disposed on the electrolyte. Variations of an electrically conductive contact are disposed on and in electrical contact with the cathode structure. At least part of the conductive contact is disposed within the trench and the conductive contact partially seals the anode, electrolyte, and cathode structure within the trench. Conductive and/or non-conductive adhesives are used to complete the seal thereby enabling full working electrochemical devices where singulation of the devices from the substrate enables high control of device dimensionality and footprint.Type: GrantFiled: June 18, 2019Date of Patent: November 1, 2022Assignee: International Business Machines CorporationInventors: John Collins, Devendra K. Sadana, Bucknell C. Webb, Paul S. Andry
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Patent number: 11401588Abstract: The present invention discloses an additive manufacturing method of lead-free environmentally-friendly high-strength brass alloys, which mainly comprises five steps of gas atomization milling, model building, forming chamber preparation, pre-spreading powder and selective laser forming. Wherein the lead-free environmentally-friendly high-strength brass alloy comprises the following elements: Zn 5.5-40 wt. %, Si 0.5-4 wt. %, trace elements Al and Ti totally 0-0.5 wt. %, and Cu for the balance. Its microstructure includes micron-sized cell crystals and dendrites. By the above method, it is possible to obtain a nearly fully compact high-strength brass alloy and nearly net-formed complex parts thereof. The formed high-strength brass alloy has beautiful color and excellent physical properties such as excellent electrical conductivity, thermal conductivity, corrosion resistance and machinability.Type: GrantFiled: November 9, 2017Date of Patent: August 2, 2022Assignee: South China University of TechnologyInventors: Chao Yang, Yanjie Zhao, Yuanyuan Li
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Patent number: 11211642Abstract: A process for treating an electrochemical cell is presented. The process includes charging the electrochemical cell in a discharged state to at least 20 percent state-of-charge of an accessible capacity of the electrochemical cell at a first temperature to attain the electrochemical cell in a partial state-of-charge or a full state-of-charge and holding the electrochemical cell in the corresponding partial state-of-charge or full state-of-charge at a second temperature. The first temperature and the second temperature are higher than an operating temperature of the electrochemical cell.Type: GrantFiled: December 12, 2017Date of Patent: December 28, 2021Assignee: General Electric CompanyInventors: Karthick Vilapakkam Gourishankar, Satya Kishore Manepalli, Job Thomas Rijssenbeek, Hari Nadathur Seshadri, Anbarasan Viswanathan
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Patent number: 11024889Abstract: A lithium-based energy storage system includes an electrolyte and an electrode. The electrode has a conformal coating of parylene. The parylene forms an artificial solid electrolyte interface (SEI). The electrode may include a material chosen from silicon, graphene-silicon composite, carbon-sulfur, and lithium. The use of parylene to form a conformal coating on an electrode in a lithium-based energy storage system is also disclosed.Type: GrantFiled: July 29, 2015Date of Patent: June 1, 2021Assignee: Rensselaer Polytechnic InstituteInventors: Rahul Mukherjee, Eklavya Singh, Nikhil Koratkar, Toh-Ming Lu
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Patent number: 10658660Abstract: A nickel-metal hydride battery is provided with a positive electrode and a negative electrode including hydrogen absorbing alloys. The hydrogen absorbing alloys of the negative electrode include a first hydrogen absorbing alloy and a second hydrogen absorbing alloy having a higher hydrogen equilibrium dissociation pressure than the first hydrogen absorbing alloy. Each hydrogen absorbing alloy includes an element A having high affinity for hydrogen and an element B having low affinity for hydrogen. The ratio of a substance amount of the element B to a substance amount of the element A is greater in the second hydrogen absorbing alloy than the first hydrogen absorbing alloy.Type: GrantFiled: September 21, 2017Date of Patent: May 19, 2020Assignee: PRIMEARTH EV ENERGY CO., LTD.Inventors: Suguru Muraki, Yuki Sakito, Hiroyuki Sakamoto
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Patent number: 10400053Abstract: The present disclosure relates to a composition comprising plasma coated fullerenic soot particles, methods for the preparation thereof, and its use in polymer blends.Type: GrantFiled: May 23, 2016Date of Patent: September 3, 2019Assignee: Imerys Graphite & Carbon Switzerland SAInventors: Tony Mathew, Wilma Dierkes, Auke Talma, Jacobus Noordermeer, Thomas Gruenberger, Nicolaus Probst, Rabin Datta
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Patent number: 10323301Abstract: Provided is a hydrogen storing alloy represented by the general formula: (RE1-a-bSmaMgb)(Ni1-c-dAlcMd)x (where 0.3<a<0.6; 0<b<0.16; 0.1<cx<0.2; 0?dx?0.1; 3.2<x<3.5; RE is at least one element selected from the group consisting of a rare earth element other than Sm, and Y, and essentially contains La; and M is Mn and/or Co). Also provided is a hydrogen storing alloy represented by the general formula: (RE1-a-bSmaMgb)(Ni1-c-dAlcMd)x (where 0.1<a<0.25; 0.1<b<0.2; 0.02<cx<0.2; 0?dx?0.1; 3.6<x<3.7; RE is at least one element selected from the group consisting of a rare earth element other than Sm, and Y, and essentially contains La; and M is Mn and/or Co). Further provided is a nickel-metal hydride rechargeable battery including a negative electrode containing the hydrogen storing alloy.Type: GrantFiled: September 25, 2015Date of Patent: June 18, 2019Assignee: GS Yuasa International Ltd.Inventors: Daisuke Okuda, Manabu Kanemoto, Mitsuhiro Kodama
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Patent number: 9972837Abstract: A multi-phase hydrogen storage alloy comprising a hexagonal Ce2Ni7 phase and a hexagonal Pr5Co19 phase, where the Ce2Ni7 phase abundance is ?30 wt % and the Pr5Co19 phase abundance is ?8 wt % and where the alloy comprises a mischmetal where Nd in the mischmetal is <50 at % or a multi-phase hydrogen storage alloy comprising one or more rare earth elements, a hexagonal Ce2Ni7 phase and a hexagonal Pr5Co19 phase, where the Ce2Ni7 phase abundance is from about 30 to about 72 wt % and the Pr5Co19 phase abundance is ?8 wt % have improved electrochemical performance. The alloys are useful in an electrode in a metal hydride battery, a fuel cell or a metal hydride air battery.Type: GrantFiled: May 13, 2015Date of Patent: May 15, 2018Assignees: BASF Corporation, FDK CorporationInventors: Kwo Young, Taihei Ouchi, Jean Nei, Diana Wong, Shigekazu Yasuoka
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Patent number: 9893347Abstract: Provided is an alloy powder for an electrode which enables an alkaline storage battery to have both excellent discharge characteristics and excellent life characteristics. The alloy powder includes a hydrogen storage alloy including an element L, Mg, Ni, Al, and an element Ma. The element L is at least one selected from the group consisting of group 3 elements and group 4 elements of the periodic table (excluding Y). The element Ma is at least two selected from the group consisting of Ge, Y, and Sn. A molar proportion x of Mg in a total of the element L and Mg is 0.008?x?0.54. A molar proportion y of Ni, a molar proportion ? of Al, and a molar proportion ? of the element Ma, per the foregoing total is 1.6?y?4, 0.008???0.32, and 0.01???0.12, respectively.Type: GrantFiled: December 5, 2013Date of Patent: February 13, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hideaki Ohyama, Shinichi Sumiyama, Akiko Okabe, Yasushi Nakamura, Kiyoshi Hayashi, Fumio Kato
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Patent number: 9887417Abstract: The problem to be solved by the present invention is to provide a composite active material having favorable electron conductivity. The present invention solves the problem by providing a composite active material comprising an active material, a coat layer with an average thickness of less than 100 nm, formed on a surface of the active material and composed of an ion conductive oxide, and carbon particles penetrating the coat layer, formed on a surface of the active material.Type: GrantFiled: June 26, 2013Date of Patent: February 6, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nariaki Miki, Masahiro Iwasaki, Hajime Hasegawa
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Patent number: 9634324Abstract: It is an object of the present invention to improve the cycle performance in a nickel-metal hydride battery using a rare earth-Mg—Ni type alloy. The present invention provides a nickel-metal hydride battery having a negative electrode including an La—Mg—Ni based hydrogen absorbing alloy, wherein the hydrogen absorbing alloy has a crystal phase having Gd2Co7 type crystal structure and contains calcium.Type: GrantFiled: September 18, 2008Date of Patent: April 25, 2017Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Tetsuya Ozaki, Manabu Kanemoto, Masaharu Watada
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Patent number: 9531005Abstract: A hydrogen storage alloy material includes a primary phase having an ABx type structure and a secondary phase having a B2 structure that enhances the electrochemical properties of the alloy. The A component of the primary phase includes La and Ce, and the B component of the primary phase includes Ni, Co, Al, and Mn. The secondary phase may include Al, Mn, and Ni. Also disclosed are battery systems including the alloy material.Type: GrantFiled: June 25, 2013Date of Patent: December 27, 2016Assignee: Ovonic Battery Company, Inc.Inventors: Kwo-hsiung Young, Benjamin Chao
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Patent number: 9450238Abstract: The present invention provides a hydrogen absorption alloy, which includes chemical composition represented by the general formula M1tM2uM3vCawMgxNiyM4z wherein 16×(d?1.870)/(d?r)?v?16×(d?1.860)/(d?r); 1.6?w?3.2; 4.1?×?5.1; 3.2?(y+z)/(t+u+v+w+x)?3.4; t +u+v+w+x+y+z=100; M1 is one or more elements selected from La, Pr, and Nd; M2 is one or more elements selected from V, Nb, Ta, Ti, Zr, and Hf; M3 is one or more elements selected from Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; M4 is one or more elements selected from Co, Mn, Al, Cu, Fe, Cr, and Zn; d is an average atomic radius of the elements selected as M1; and r is an average atomic radius of the elements selected as M3; and an electrode and a secondary battery using the same.Type: GrantFiled: March 25, 2011Date of Patent: September 20, 2016Assignee: GS Yuasa International Ltd.Inventors: Tetsuya Ozaki, Manabu Kanemoto, Yoshiteru Kawabe, Tadashi Kakeya
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Patent number: 9343742Abstract: A nickel hydride secondary battery houses an electrode group including a positive electrode and a negative electrode which are overlapped with each other via a separator with an alkaline electrolyte solution, the negative electrode includes a hydrogen absorbing alloy, a negative-electrode additive agent, a thickening agent, and a conductive material, and the negative-electrode additive agent includes at least one selected from calcium fluoride, calcium sulfide, and calcium chloride.Type: GrantFiled: October 29, 2013Date of Patent: May 17, 2016Assignee: FDK CORPORATIONInventors: Masaru Kihara, Akira Saguchi, Masaaki Takei, Takeshi Ito, Yuzo Imoto
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Patent number: 9306215Abstract: A nickel-metal hydride secondary cell holds therein an electrode group and an alkaline electrolyte solution containing NaOH as a main constituent of its solute. The electrode group has positive and negative electrodes lapped one over the other with a separator therebetween. The negative electrode contains a hydrogen absorbing alloy having a composition represented by the general formula: (RE1-xTx)1-yMgyNiz-aAla (where RE is at least one element selected from among Y, Sc and rare-earth elements, T is at least one element selected from among Zr, V and Ca, and subscripts x, y, z and a are values respectively satisfying 0?x, 0.05?y?0.35, 2.8?z?3.9, and 0.10?a?0.25), the hydrogen absorbing alloy has a crystal structure in which an AB2 subunit and an AB5 subunit are superimposed one upon the other, and Cr is substituted for part of the Ni.Type: GrantFiled: July 18, 2013Date of Patent: April 5, 2016Assignee: FDK CORPORATIONInventors: Takuya Kai, Jun Ishida
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Patent number: 9239363Abstract: An apparatus is disclosed that includes a resistance measuring unit operable to determine a solution resistance Rsol and a charge transfer resistance Rct of a battery; and at least one computer-readable non-transitory storage medium comprising code, that, when executed by at least one processor, is operable to provide an estimate of the present value of the battery by: comparing Rsol and Rct to historical deterioration transition information; estimating the number of remaining charge cycles before a discharge capacity lower limit is reached by the battery using the comparison; and estimating the number of remaining charge cycles before a discharge time lower limit is reached by the battery using the comparison. The estimate of the present value of the battery includes the smaller of the number of remaining charge cycles before a discharge capacity lower limit is reached or the number of remaining charge cycles before a discharge time lower limit is reached.Type: GrantFiled: December 21, 2010Date of Patent: January 19, 2016Assignee: Toshiba CorporationInventors: Akihiro Matsui, Kazuto Kuroda, Yasuhiro Harada, Shinichiro Kosugi, Hisashi Oya, Mami Mizutani, Takashi Morimoto, Takeo Hayase, Yukitaka Monden, Norio Takami
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Patent number: 9225016Abstract: A hydrogen storage alloy wherein elution of Co, Mn, Al, and the like elements into an alkaline electrolyte is inhibited, an anode for a nickel-hydrogen rechargeable battery employing the alloy, and a nickel-hydrogen rechargeable battery having the anode.Type: GrantFiled: August 19, 2011Date of Patent: December 29, 2015Assignee: SANTOKU CORPORATIONInventors: Takayuki Otsuki, Hiroki Hayashi
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Patent number: 9172111Abstract: Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqeuous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.Type: GrantFiled: March 11, 2013Date of Patent: October 27, 2015Assignee: PELLION TECHNOLOGIES, INC.Inventors: Robert Ellis Doe, Craig Michael Downie, Christopher Fischer, George Hamilton Lane, Dane Morgan, Josh Nevin, Gerbrand Ceder, Kristin Aslaug Persson, David Eaglesham
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Patent number: 9130043Abstract: An object is to provide a method for manufacturing a highly reliable semiconductor device which includes a thin film transistor using an oxide semiconductor and having stable electric characteristics. In manufacture of a semiconductor device in which an oxide semiconductor is used for a channel formation region, after an oxide semiconductor film is formed, a conductive film including a metal, a metal compound, or an alloy that can absorb or adsorb moisture, a hydroxy group, or hydrogen is formed to overlap with the oxide semiconductor film with an insulating film provided therebetween. Then, heat treatment is performed in the state where the conductive film is exposed; in such a manner, activation treatment for removing moisture, oxygen, hydrogen, or the like adsorbed onto a surface of or in the conductive film is performed.Type: GrantFiled: September 29, 2010Date of Patent: September 8, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kengo Akimoto
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Patent number: 9048010Abstract: A method for manufacturing an electrically conducting article is disclosed. According to some aspects, the method includes dry mixing a powder comprising at least one thermosetting resin, a hardener compound powder for the resin and an electrically conducting filler powder, the thermosetting resin including at least two epoxide groups. The method further includes thermocompressing the mixture of powders in a mold with a shape adapted to the article and at an effective temperature for obtaining cross-linking of the resin.Type: GrantFiled: January 29, 2010Date of Patent: June 2, 2015Assignee: Commissariat a l'energie atomique et aux energies alternativesInventors: Olivier Perrier, Dominique Rocle, Grégoire Delacourt, Hervé Galiano, Philippe Mazabraud, David Descarsin
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Publication number: 20150118557Abstract: Provided is a hydrogen storage alloy which is characterized in that two or more crystal phases having different crystal structures are layered in a c-axis direction of the crystal structures. The hydrogen storage alloy is further characterized in that a difference between a maximum value and a minimum value of a lattice constant a in the crystal structures of the laminated two or more crystal phases is 0.03 ? or less.Type: ApplicationFiled: January 6, 2015Publication date: April 30, 2015Applicants: GS Yuasa International Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Tadashi KAKEYA, Manabu KANEMOTO, Minoru KUZUHARA, Tetsuya OZAKI, Masaharu WATADA, Tetsuo SAKAI
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Publication number: 20150104703Abstract: Disclosed is an alloy powder for electrodes for nickel-metal hydride storage batteries having a high battery capacity and being excellent in life characteristics and high-temperature storage characteristics. The alloy powder includes a hydrogen storage alloy containing elements L, M, Ni, Co, and E. L includes La as an essential component. L includes no Nd, or when including Nd, the percentage of Nd in L is less than 5 mass %. The percentage of La in the hydrogen storage alloy is 23 mass % or less. M is Mg, Ca, Sr and/or Ba. A molar ratio ? to a total of L and M is 0.045???0.133. A molar ratio x of Ni to the total of L and M is 3.5?x?4.32, and a molar ratio y of Co is 0.13?y?0.5. The molar ratios x and y, and a molar ratio z of E to the total of L and M satisfy 4.78?x+y+z<5.03.Type: ApplicationFiled: February 19, 2014Publication date: April 16, 2015Inventors: Akiko Okabe, Hideaki Ohyama, Shinichi Sumiyama, Yasushi Nakamura, Kiyoshi Hayashi, Hiroki Takeshima, Fumio Kato
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Publication number: 20150056508Abstract: Disclosed is a cathode active material in which lithium cobalt oxide particles and manganese (Mn) or titanium (Ti)-containing lithium transition metal oxide particles co-exist and a method of preparing the same.Type: ApplicationFiled: November 5, 2014Publication date: February 26, 2015Applicant: LG CHEM, LTD.Inventors: Sun Sik Shin, Hye Lim Jeon, Bo Ram Lee, Hong Kyu Park
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Publication number: 20150044562Abstract: A nickel-hydrogen storage battery includes a positive electrode, a negative electrode using an AB5 based hydrogen-absorbing alloy, and a separator arranged between the positive and negative electrodes. The AB5 based hydrogen-absorbing alloy includes an A element, which is a constituent element of a misch metal, and a B element, which includes nickel and cobalt. The ratio of the amount of substance of the B element to that of the A element is 5.2 or more and 5.4 or less. The ratio of the amount of substance of cobalt to that of the A element is 0.15 or more and 0.4 or less. The liquid retention volume (V1) and the true volume (V2) of the separator, the theoretical capacity of the negative electrode (C1), and the theoretical capacity of the positive electrode (C2) satisfy the following expression. 2.0?V1/V2×C1/C2?3.Type: ApplicationFiled: March 25, 2014Publication date: February 12, 2015Applicant: PRIMEARTH EV ENERGY CO., LTD.Inventors: Shinichiro ITO, Yuki SAKITO, Hiroyuki SAKAMOTO, Katsumi KASHIWAGI
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Patent number: 8951666Abstract: A nickel hydrogen rechargeable battery contains an electrode group made up of positive and negative electrode put together with a separator intervening therebetween. The positive electrode includes positive-electrode active material particles each having a base particle composed mainly of nickel hydroxide and a conductive layer that covers the surface of the base particle and is made from a Co compound containing Li. The negative electrode includes a rare earth-Mg—Ni-based hydrogen storage alloy containing a rare-earth element, Mg and Ni. The total amount of Li contained in the battery is in a range of from 15 to 50 (mg/Ah) on the condition that the Li is converted into LiOH, and that the total amount of Li is found as a mass per Ah of positive electrode capacity.Type: GrantFiled: March 15, 2013Date of Patent: February 10, 2015Assignee: FDK Twicell Co., Ltd.Inventors: Masaaki Takei, Tetsuya Yamane, Yuzo Imoto, Takeshi Ito, Masaru Takasu
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Publication number: 20140370406Abstract: This disclosure relates to novel manganese hydrides, processes for their preparation, and their use in hydrogen storage applications. The disclosure also relates to processes for preparing manganese dialkyl compounds having high purity, and their use in the preparation of manganese hydrides having enhance hydrogen storage capacity.Type: ApplicationFiled: June 13, 2014Publication date: December 18, 2014Inventor: David ANTONELLI
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Patent number: 8906557Abstract: Anode active materials and methods of preparing the same are provided. One anode active material includes a carbonaceous material capable of improving battery cycle characteristics. The carbonaceous material bonds to and coats metal active material particles and fibrous metallic particles to suppress volumetric changes.Type: GrantFiled: March 22, 2007Date of Patent: December 9, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Gue-sung Kim, Yong-nam Ham, Han-su Kim, Dong-min Im
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Patent number: 8877378Abstract: The performance of an ABx type metal hydride alloy is improved by adding an element to the alloy which element is operative to enhance the surface area morphology of the alloy. The alloy may include surface regions of differing morphologies.Type: GrantFiled: January 7, 2013Date of Patent: November 4, 2014Assignee: Ovonic Battery Company, Inc.Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
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Publication number: 20140295271Abstract: A method is described to prepare a cathode material for high energy density rechargeable lithium ion batteries based on H2V3O8 with improved cycling stability by means of a surface modification produced at low temperature in aqueous media. The battery comprises a stack composed by an anode, an electrolytic layer, a separator and a cathode, whose material is based on a mixture of carbon black LixH2-xV3O8 modified by an aluminum hydroxide coating achieved in a one pot multistep reaction using aluminum in an amount comprised between 0.5 wt % and 10 wt %.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: Belenos Clean Power Holding AGInventors: Mario Simoes, Yoann Mettan, Anke Weidenkaff, Simone Pokrant
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Patent number: 8802292Abstract: A hydrogen-absorbing alloy for an alkaline storage battery with high power characteristics and excellent output power stability and a method for manufacturing the same are provided. The hydrogen-absorbing alloy for an alkaline storage battery of the invention is represented by ABn (A: LaxReyMg1-x-y, B: Nin-zTz, Re: at least one element selected from rare earth elements including Y (other than La), T: at least one element selected from Co, Mn, Zn, and Al, and z>0) and has a stoichiometric ratio n of 3.5 to 3.8, a ratio of La to Re (x/y) of 3.5 or less, at least an A5B19 type structure, and an average C axis length ? of crystal lattice of 30 to 41 ?.Type: GrantFiled: June 16, 2010Date of Patent: August 12, 2014Assignee: SANYO Electric Co., Ltd.Inventors: Shuhei Yoshida, Kazuaki Tamura, Yoshinobu Katayama, Teruhito Nagae
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Publication number: 20140193719Abstract: The performance of an ABx type metal hydride alloy is improved by adding an element to the alloy which element is operative to enhance the surface area morphology of the alloy. The alloy may include surface regions of differing morphologies.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Applicant: OVONIC BATTERY COMPANY, INC.Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
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Publication number: 20140193722Abstract: The performance of an ABx type metal hydride alloy is improved by adding an element to the alloy which element is operative to enhance the surface area morphology of the alloy. The alloy may include surface regions of differing morphologies.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Applicant: OVONIC BATTERY COMPANY, INC.Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
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Patent number: 8753775Abstract: The present invention provides a lithium secondary battery having high-capacity as well as good cycle characteristics. The lithium secondary battery includes a positive electrode comprising a positive active material, a negative electrode comprising a negative active material and an electrolyte. The negative active material includes graphite particles combined to Si particulate. The electrolyte includes a solvent, a polyether modified silicone oil where a linear polyether chain is linked to a polysiloxane chain, and a solute comprising a lithium salt.Type: GrantFiled: January 13, 2012Date of Patent: June 17, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Takitaro Yamaguchi, Ryuichi Shimizu
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Publication number: 20140087253Abstract: A nickel-metal hydride storage battery includes a negative electrode containing a hydrogen storage alloy and an electrolyte solution. The hydrogen storage alloy has a CaCu5-type crystal structure and contains at least a Ni element and a rare earth element. The rare earth element is partly substituted with an Y element, and the electrolyte solution contains NaOH in an amount of 2.0 M or more.Type: ApplicationFiled: September 25, 2013Publication date: March 27, 2014Applicant: GS YUASA INTERNATIONAL LTD.Inventors: Daisuke Okuda, Manabu Kanemoto, Tadashi Kakeya, Mitsuhiro Kodama
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Patent number: 8652684Abstract: The invention proposes a composition comprising: a) a hydrogen-fixing alloy of formula R1-tMgtNis-zMz in which: R represents one or more elements chosen from the group comprising La, Ce, Nd and Pr; M represents one or more elements chosen from the group comprising Mn, Fe, Al, Co, Cu, Zr and Sn; 0.1?t?0.4; 3.0?s?4.3; z?0.5; b) a manganese compound in a proportion such that the mass of manganese represents from 1 to 5.5% of the mass of the alloy, c) an yttrium compound in a proportion such that the mass of yttrium represents from 0.1% to 2% of the mass of the alloy. The invention also relates to an anode comprising the composition according to the invention. The invention also relates to an alkaline electrolyte battery comprising said at least one anode.Type: GrantFiled: September 6, 2007Date of Patent: February 18, 2014Assignee: Saft Groupe SAInventors: Patrick Bernard, Bernard Knosp, Michelle Baudry
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Publication number: 20140030583Abstract: A nickel-metal hydride secondary cell holds therein an electrode group and an alkaline electrolyte solution containing NaOH as a main constituent of its solute. The electrode group has positive and negative electrodes lapped one over the other with a separator therebetween. The negative electrode contains a hydrogen absorbing alloy having a composition represented by the general formula: (RE1-xTx)1-yMgyNiz-aAla (where RE is at least one element selected from among Y, Sc and rare-earth elements, T is at least one element selected from among Zr, V and Ca, and subscripts x, y, z and a are values respectively satisfying 0?x, 0.05?y?0.35, 2.8?z?3.9, and 0.10?a?0.25), the hydrogen absorbing alloy has a crystal structure in which an AB2 subunit and an AB5 subunit are superimposed one upon the other, and Cr is substituted for part of the Ni.Type: ApplicationFiled: July 18, 2013Publication date: January 30, 2014Inventors: Takuya Kai, Jun Ishida
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Publication number: 20130337331Abstract: To provide nickel composite hydroxide particles having a small and uniform particle diameter and a method for producing the same. The method for producing the nickel composite hydroxide particles includes: a nucleation step of producing nuclei including primary particles by controlling a pH of an aqueous solution for nucleation to 11.5 to 13.2 at a liquid temperature of 25° C., the aqueous solution for nucleation containing a metal compound having an atomic ratio of metals corresponding to an atomic ratio of metals in the nickel composite hydroxide particles and substantially not containing a metal complex ion-forming agent; and a particle growth step of forming, on an outer surface of each of the nuclei, an outer shell portion including platy primary particles larger than primary particles of the nuclei by controlling a pH of an aqueous solution for particle growth containing the nuclei obtained in the nucleation step to 9.5 to 11.0 at a liquid temperature of 25° C.Type: ApplicationFiled: March 31, 2011Publication date: December 19, 2013Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Kensaku Mori, Rei Kokado, Shin Imaizumi
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Patent number: 8592084Abstract: An alkaline secondary cell has an electrode assembly including a positive electrode, a negative electrode and a separator, and alkaline electrolyte. The negative electrode includes hydrogen-storage alloy and an oxidation inhibitor that inhibits the hydrogen-storage alloy from being oxidized. The oxidation inhibitor contains a chemical compound, and the chemical compound includes a chemical-bond-formation end that is chemically bonded to the surface of the hydrogen-storage alloy and a water-repellent end having water repellency.Type: GrantFiled: December 19, 2011Date of Patent: November 26, 2013Assignee: FDK Twicell Co., Ltd.Inventors: Akira Saguchi, Masaru Kihara, Takahiro Endo