Hydrogen Storage Material Is Active Material Patents (Class 429/218.2)
  • Patent number: 10658660
    Abstract: 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: Grant
    Filed: September 21, 2017
    Date of Patent: May 19, 2020
    Assignee: PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Suguru Muraki, Yuki Sakito, Hiroyuki Sakamoto
  • Patent number: 10400053
    Abstract: 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: Grant
    Filed: May 23, 2016
    Date of Patent: September 3, 2019
    Assignee: Imerys Graphite & Carbon Switzerland SA
    Inventors: Tony Mathew, Wilma Dierkes, Auke Talma, Jacobus Noordermeer, Thomas Gruenberger, Nicolaus Probst, Rabin Datta
  • Patent number: 10323301
    Abstract: 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: Grant
    Filed: September 25, 2015
    Date of Patent: June 18, 2019
    Assignee: GS Yuasa International Ltd.
    Inventors: Daisuke Okuda, Manabu Kanemoto, Mitsuhiro Kodama
  • Patent number: 9972837
    Abstract: 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: Grant
    Filed: May 13, 2015
    Date of Patent: May 15, 2018
    Assignees: BASF Corporation, FDK Corporation
    Inventors: Kwo Young, Taihei Ouchi, Jean Nei, Diana Wong, Shigekazu Yasuoka
  • Patent number: 9893347
    Abstract: 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: Grant
    Filed: December 5, 2013
    Date of Patent: February 13, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideaki Ohyama, Shinichi Sumiyama, Akiko Okabe, Yasushi Nakamura, Kiyoshi Hayashi, Fumio Kato
  • Patent number: 9887417
    Abstract: 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: Grant
    Filed: June 26, 2013
    Date of Patent: February 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nariaki Miki, Masahiro Iwasaki, Hajime Hasegawa
  • Patent number: 9634324
    Abstract: 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: Grant
    Filed: September 18, 2008
    Date of Patent: April 25, 2017
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Tetsuya Ozaki, Manabu Kanemoto, Masaharu Watada
  • Patent number: 9531005
    Abstract: 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: Grant
    Filed: June 25, 2013
    Date of Patent: December 27, 2016
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Kwo-hsiung Young, Benjamin Chao
  • Patent number: 9450238
    Abstract: 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: Grant
    Filed: March 25, 2011
    Date of Patent: September 20, 2016
    Assignee: GS Yuasa International Ltd.
    Inventors: Tetsuya Ozaki, Manabu Kanemoto, Yoshiteru Kawabe, Tadashi Kakeya
  • Patent number: 9343742
    Abstract: 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: Grant
    Filed: October 29, 2013
    Date of Patent: May 17, 2016
    Assignee: FDK CORPORATION
    Inventors: Masaru Kihara, Akira Saguchi, Masaaki Takei, Takeshi Ito, Yuzo Imoto
  • Patent number: 9306215
    Abstract: 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: Grant
    Filed: July 18, 2013
    Date of Patent: April 5, 2016
    Assignee: FDK CORPORATION
    Inventors: Takuya Kai, Jun Ishida
  • Patent number: 9239363
    Abstract: 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: Grant
    Filed: December 21, 2010
    Date of Patent: January 19, 2016
    Assignee: Toshiba Corporation
    Inventors: Akihiro Matsui, Kazuto Kuroda, Yasuhiro Harada, Shinichiro Kosugi, Hisashi Oya, Mami Mizutani, Takashi Morimoto, Takeo Hayase, Yukitaka Monden, Norio Takami
  • Patent number: 9225016
    Abstract: 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: Grant
    Filed: August 19, 2011
    Date of Patent: December 29, 2015
    Assignee: SANTOKU CORPORATION
    Inventors: Takayuki Otsuki, Hiroki Hayashi
  • Patent number: 9172111
    Abstract: 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: Grant
    Filed: March 11, 2013
    Date of Patent: October 27, 2015
    Assignee: 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
  • Patent number: 9130043
    Abstract: 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: Grant
    Filed: September 29, 2010
    Date of Patent: September 8, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Kengo Akimoto
  • Patent number: 9048010
    Abstract: 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: Grant
    Filed: January 29, 2010
    Date of Patent: June 2, 2015
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Olivier Perrier, Dominique Rocle, Grégoire Delacourt, Hervé Galiano, Philippe Mazabraud, David Descarsin
  • Publication number: 20150118557
    Abstract: 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: Application
    Filed: January 6, 2015
    Publication date: April 30, 2015
    Applicants: GS Yuasa International Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Tadashi KAKEYA, Manabu KANEMOTO, Minoru KUZUHARA, Tetsuya OZAKI, Masaharu WATADA, Tetsuo SAKAI
  • Publication number: 20150104703
    Abstract: 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: Application
    Filed: February 19, 2014
    Publication date: April 16, 2015
    Inventors: Akiko Okabe, Hideaki Ohyama, Shinichi Sumiyama, Yasushi Nakamura, Kiyoshi Hayashi, Hiroki Takeshima, Fumio Kato
  • Publication number: 20150056508
    Abstract: 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: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sun Sik Shin, Hye Lim Jeon, Bo Ram Lee, Hong Kyu Park
  • Publication number: 20150044562
    Abstract: 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: Application
    Filed: March 25, 2014
    Publication date: February 12, 2015
    Applicant: PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Shinichiro ITO, Yuki SAKITO, Hiroyuki SAKAMOTO, Katsumi KASHIWAGI
  • Patent number: 8951666
    Abstract: 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: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: FDK Twicell Co., Ltd.
    Inventors: Masaaki Takei, Tetsuya Yamane, Yuzo Imoto, Takeshi Ito, Masaru Takasu
  • Publication number: 20140370406
    Abstract: 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: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventor: David ANTONELLI
  • Patent number: 8906557
    Abstract: 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: Grant
    Filed: March 22, 2007
    Date of Patent: December 9, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Gue-sung Kim, Yong-nam Ham, Han-su Kim, Dong-min Im
  • Patent number: 8877378
    Abstract: 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: Grant
    Filed: January 7, 2013
    Date of Patent: November 4, 2014
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
  • Publication number: 20140295271
    Abstract: 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: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Belenos Clean Power Holding AG
    Inventors: Mario Simoes, Yoann Mettan, Anke Weidenkaff, Simone Pokrant
  • Patent number: 8802292
    Abstract: 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: Grant
    Filed: June 16, 2010
    Date of Patent: August 12, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shuhei Yoshida, Kazuaki Tamura, Yoshinobu Katayama, Teruhito Nagae
  • Publication number: 20140193719
    Abstract: 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: Application
    Filed: January 7, 2013
    Publication date: July 10, 2014
    Applicant: OVONIC BATTERY COMPANY, INC.
    Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
  • Publication number: 20140193722
    Abstract: 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: Application
    Filed: January 7, 2013
    Publication date: July 10, 2014
    Applicant: OVONIC BATTERY COMPANY, INC.
    Inventors: Kwo Young, Benjamin Reichman, Michael A. Fetcenko
  • Patent number: 8753775
    Abstract: 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: Grant
    Filed: January 13, 2012
    Date of Patent: June 17, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu
  • Publication number: 20140087253
    Abstract: 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: Application
    Filed: September 25, 2013
    Publication date: March 27, 2014
    Applicant: GS YUASA INTERNATIONAL LTD.
    Inventors: Daisuke Okuda, Manabu Kanemoto, Tadashi Kakeya, Mitsuhiro Kodama
  • Patent number: 8652684
    Abstract: 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: Grant
    Filed: September 6, 2007
    Date of Patent: February 18, 2014
    Assignee: Saft Groupe SA
    Inventors: Patrick Bernard, Bernard Knosp, Michelle Baudry
  • Publication number: 20140030583
    Abstract: 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: Application
    Filed: July 18, 2013
    Publication date: January 30, 2014
    Inventors: Takuya Kai, Jun Ishida
  • Publication number: 20130337331
    Abstract: 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: Application
    Filed: March 31, 2011
    Publication date: December 19, 2013
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kensaku Mori, Rei Kokado, Shin Imaizumi
  • Patent number: 8592084
    Abstract: 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: Grant
    Filed: December 19, 2011
    Date of Patent: November 26, 2013
    Assignee: FDK Twicell Co., Ltd.
    Inventors: Akira Saguchi, Masaru Kihara, Takahiro Endo
  • Publication number: 20130295460
    Abstract: [Problem] To suppress increases in the resistance of nickel positive electrodes and assure sufficient battery capacity even after repeated pulse charging and discharging cycles with a large current. [Solution] This alkaline storage battery (10) contains aluminum (Al) in a hydrogen storage alloy negative electrode (12) and also includes Al in a nickel positive electrode (11). In a state where a prescribed charging and discharging cycle has completed, the Al content in the nickel positive electrode (11) is 0.25% by mass or greater of that in the positive electrode active material, and in powder x-ray diffraction of the positive electrode active material using Cu—K?, the half-width of the (101) plane peak for Ni(OH)2 is controlled so as to be 0.5 (°/2?) or greater.
    Type: Application
    Filed: November 29, 2011
    Publication date: November 7, 2013
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Mitsunori Tokuda, Makoto Ochi, Kazuhiro Kitaoka, Masao Takee
  • Patent number: 8551655
    Abstract: Disclosed are a negative active material for a secondary lithium battery and a secondary lithium battery including the same. The negative active material for a secondary lithium battery includes an amorphous silicon-based compound represented by the following Chemical Formula 1. SiAxHy??Chemical Formula 1 In Chemical Formula 1, A is at least one element selected from C, N, or a combination thereof, 0<x, 0<y, and 0.1?x+y?1.5.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: October 8, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sumihito Ishida, Hee-Joong Kim, Hyun-Uk Jo, Deok-Hyun Kim, Jong-Ki Lee, Seok-Gyun Woo
  • Patent number: 8541135
    Abstract: The invention is an electrochemical cell with a catalytic electrode and an aqueous alkaline electrolyte within a cell housing having one or more ports for the passage of a gas to or from the catalytic electrode and a process for making the cell. The catalytic electrode includes a catalytic layer, containing a catalytic material, and a porous current collector, at least partially embedded in the catalytic layer. The current collector includes a substrate with an electrically conductive metal layer, in contact with the catalytic material on the side of the current collector facing the ports, and a coating including electrically conductive particles, in contact with the catalytic layer on the side facing the separator.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: September 24, 2013
    Assignee: Eveready Battery Co, Inc.
    Inventors: Wayne B. Bennett, Jingdong Guo
  • Publication number: 20130202964
    Abstract: 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: Application
    Filed: August 19, 2011
    Publication date: August 8, 2013
    Applicant: SANTOKU CORPORATION
    Inventors: Takayuki Otsuki, Hiroki Hayashi
  • Patent number: 8501349
    Abstract: An energy storage device (100) providing high storage densities via hydrogen storage. The device (100) includes a counter electrode (110), a storage electrode (130), and an ion conducting membrane (120) positioned between the counter electrode (110) and the storage electrode (130). The counter electrode (110) is formed of one or more materials with an affinity for hydrogen and includes an exchange matrix for elements/materials selected from the non-noble materials that have an affinity for hydrogen. The storage electrode (130) is loaded with hydrogen such as atomic or mono-hydrogen that is adsorbed by a hydrogen storage material such that the hydrogen (132, 134) may be stored with low chemical bonding. The hydrogen storage material is typically formed of a lightweight material such as carbon or boron with a network of passage-ways or intercalants for storing and conducting mono-hydrogen, protons, or the like.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 6, 2013
    Assignee: Alliance for Sustainable Energy, LLC
    Inventor: Lin Jay Simpson
  • Patent number: 8481210
    Abstract: An alkaline storage battery has a negative electrode using a hydrogen-absorbing alloy represented by a general formula Ln1-xMgxNiyAz wherein Ln is at least one element selected from rare-earth elements including Y, Ca, Zr, and Ti, A is at least one element selected from Co, Fe, Mn, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B, and 0.15?x?0.30, 0<z?1.5, and 2.8?y+z?4.0 are satisfied. The hydrogen-absorbing alloy has a hexagonal system crystal structure or a rhombohedral system crystal structure as its main phase and has a subphase of line which average number of not less than 50 nm in thickness existing in the range of 10 ?m×10 ?m in the cross section of the main phase is 3 or less.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: July 9, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Jun Ishida, Yoshifumi Magari, Shigekazu Yasuoka
  • Patent number: 8475958
    Abstract: A nickel hydrogen storage battery is provided which includes an electrode assembly formed by winding spirally a strip-like negative electrode (4) and a strip-like positive electrode with a separator interposed therebetween, the strip-like negative electrode (4) having a mixture layer containing a hydrogen storage alloy disposed on a core material. The electrode assembly is contained in a bottomed cylindrical container such that the negative electrode (4) forms the outermost peripheral portion. A portion corresponding to an outermost peripheral portion (5) of the negative electrode is a thin portion, and the thin portion is bent in advance in the winding direction of the electrode assembly to form an arc shape. In this manner, when the spirally wound electrode assembly is configured, the outermost peripheral portion of the negative electrode is prevented from peeling from the electrode assembly, and thus the insertability into the bottomed cylindrical container is improved.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: July 2, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Okawa, Tsuneyoshi Murakami, Kenichi Aoki, Hiroyuki Usui, Kimihiro Imamura
  • Publication number: 20130157132
    Abstract: A hydrogen storage alloy is provided which has an extremely low Co content, and can maintain the drain (power) performance (especially pulse discharge characteristics), activity (degree of activity), and life performance at high levels. The hydrogen storage alloy is manufactured by weighing and mixing every material for the hydrogen storage alloy so as to provide an alloy composition represented by the general formula MmNiaMnbAlcCod or MmNiaMnbAlcCodFee, and controlling the manufacturing method and manufacturing conditions so that both the a-axis length and the c-axis length of the crystal lattice are in a predetermined range. Although it is sufficient if the a-axis length of the crystal lattice is 499 pm or more and the c-axis length is 405 pm or more, by further specifying the a-axis length and c-axis length depending on the values of ABx, a hydrogen storage alloy having high durability can be provided.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 20, 2013
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: MITSUI MINING & SMELTING CO., LTD.
  • Publication number: 20130136983
    Abstract: Disclosed is a hydrogen absorbing alloy particles including a matrix phase and a plurality of segregation phases, the matrix phase including an alloy having a CaCu5 type crystal structure, the alloy including nickel (Ni) and 1 to 5 mass % of cobalt (Co); and the segregation phases including a magnetic material mainly composed of Ni and having an average particle diameter of 1 to 5 nm. A content of the segregation phases is preferably 0.05 to 0.5 mass %. Also, each of the segregation phases is preferably formed of a cluster of minute particles of the magnetic material.
    Type: Application
    Filed: September 26, 2011
    Publication date: May 30, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kyoko Nakatsuji, Susumu Kikuyama, Masumi Katsumoto, Yoshitaka Dansui
  • Publication number: 20130108924
    Abstract: An anode material for use in a metal secondary battery contains MgH2, and a metal catalyst which is in contact with the MgH2 and improves the reversibility of a conversion reaction. The metal secondary battery includes a cathode active material layer, an anode active material layer, and an electrolyte layer that is formed between the cathode active material layer and the anode active material layer, and the anode active material layer contains the anode material. A method for the production of an anode material for use in a metal secondary battery includes a contacting step of contacting MgH2 with a metal catalyst which improves the reversibility of a conversion reaction.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 2, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideki Nakayama, Tomoya Matsunaga, Kunihiro Nobuhara, Makio Kon
  • Patent number: 8409753
    Abstract: An alkaline storage battery in which an actual reaction area is not reduced after increasing a reaction area is provided. A hydrogen storage alloy negative electrode 11 of an alkaline storage battery 10 of the present invention is formed in a strip form including a long axis and a short axis, in which the ratio (A/B) of a length A (cm) of the long axis to a length B (cm) of the short axis is 20 or more and 30 or less (20?A/B?30), and the ratio (X/Y) of an electrolyte volume X (g) retained in the hydrogen storage alloy negative electrode 11 to an electrolyte volume Y (g) retained in a separator 13 is 0.8 or more and 1.1 or less (0.8?X/Y?1.1). With this arrangement, an alkaline storage battery with high output characteristics and long-term durability performance is obtained.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: April 2, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shuhei Yoshida, Yoshinobu Katayama, Kazuaki Tamura, Teruhito Nagae
  • Patent number: 8389159
    Abstract: A nickel metal hydride rechargeable battery has a closed-end tubular container containing a spiral-shaped electrode assembly formed by winding a negative a positive electrode with a separator interposed therebetween such that the outermost periphery of the assembly is the negative electrode which is formed by disposing on a conductive substrate a mixture layer containing a hydrogen-absorption alloy. The positive electrode employs nickel hydroxide as an active material. In the nickel metal hydride rechargeable battery, the surface roughness of the outermost peripheral portion of the mixture layer of the negative electrode which contacts an inner side wall of the closed-end tubular container is 3.5 ?M or more in terms of ten-point average roughness and is larger than the surface roughness of the other portion of the mixture layer. The reduction of oxygen gas during rapid charging is thereby facilitated without lowering the design capacity of the battery.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: March 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Okawa, Tsuneyoshi Murakami, Kenichi Aoki, Hiroyuki Usui
  • Patent number: 8377374
    Abstract: A hydrogen-absorbing alloy, which is used as a negative electrode material of nickel-metal hydride secondary batteries for hybrid electric vehicles, and particularly for batteries to drive electric motors of hybrid electric vehicles, is an AB5-type alloy having a CaCu5-type crystal structure and the general formula RNiaCobAlcMnd (R: mixture of rare earth metals), wherein 4.15?a?4.4, 0.15?b?0.35, 1?c/d?1.7, 5.25?a+b+c+d?5.45.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: February 19, 2013
    Assignee: Chuo Denki Kogyo Co., Ltd.
    Inventors: Yasushi Kojima, Hiroyuki Ikeda, Satoru Furukawa, Kazutaka Sugiyama, Nobuo Kobayashi
  • Patent number: 8357465
    Abstract: A button cell includes a positive electrode, a negative electrode and a separator arranged in a housing comprising a cell cup and a cell lid insulated from one another by a seal, wherein the negative electrode is tablet-shaped pressed body having a self-supporting structure.
    Type: Grant
    Filed: February 16, 2008
    Date of Patent: January 22, 2013
    Assignee: Varta Microbattery GmbH
    Inventors: Eduard Pytlik, Arno Perner, Martin Krebs, Dejan Ilic
  • Patent number: 8343659
    Abstract: The present invention provides a hydrogen absorbing alloy containing a phase of a Gd2Co7 type crystal structure, wherein the phase exists at a ratio of 10 weight % or higher in the entire hydrogen absorbing alloy and yttrium is contained at a ratio of 2 mol % or more and 10 mol % or less in the entire hydrogen absorbing alloy.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: January 1, 2013
    Assignees: GS Yuasa International Ltd., National Insitute of Advanced Industrial Science and Technology
    Inventors: Tetsuya Ozaki, Tetsuo Sakai, Manabu Kanemoto, Tadashi Kakeya, Minoru Kuzuhara, Masaharu Watada
  • Patent number: 8343660
    Abstract: 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: Grant
    Filed: August 8, 2007
    Date of Patent: January 1, 2013
    Assignees: GS Yuasa International Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Tadashi Kakeya, Manabu Kanemoto, Minoru Kuzuhara, Tetsuya Ozaki, Masaharu Watada, Tetsuo Sakai