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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 137174. Отображено 100.
12-01-2012 дата публикации

Positive electrode active material, nonaqueous electrolyte battery and method for manufacturing positive electrode active material

Номер: US20120009474A1
Автор: Asuki Yanagihara, Guohua Li, Tomoyo Ooyama, Yoshihiro Kudo
Принадлежит: Sony Corp

A positive electrode active material includes: a secondary particle obtained upon aggregation of a primary particle that is a lithium complex oxide particle in which at least nickel (Ni) and cobalt (Co) are solid-solved as transition metals, wherein an average composition of the whole of the secondary particle is represented by the following formula (1): Li x Co y Ni z M 1-y-z O b-a X a   Formula (1) wherein an existent amount of cobalt (Co) becomes large from a center of the primary particle toward the surface thereof; and an existent amount of cobalt (Co) in the primary particle existing in the vicinity of the surface of the secondary particle is larger than an existent amount of cobalt (Co) in the primary particle existing in the vicinity of the center of the secondary particle.

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Номер записи: 1
12-01-2012 дата публикации

Compression arrangement for fuel or electrolysis cells in a fuel cell stack or an electrolysis cell stack

Номер: US20120009499A1
Автор: Claus Rasmussen, Ib Skyum, Jens Ulrik Nielsen, Jeppe Rass-Hansen, Lars KIILSTOFTE HANSEN
Принадлежит: Topsoe Fuel Cell AS

A fuel cell stack or an electrolysis cell stack comprises a plurality of cells, which need to be compressed to ensure and maintain internal contact. To achieve an evenly distributed compression force throughout the electrochemically active area a frame with a central aperture is positioned on top of the cell stack between a resilient plate and a top plate. The enclosed aperture forms a compression chamber which is provided with pressurised gas from the cathode inlet, whereby an evenly distributed force is applied to the electrochemically area of the cell stack by the resilient plate.

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Номер записи: 2
19-01-2012 дата публикации

Porous anode active material, method of preparing the same, and anode and lithium battery employing the same

Номер: US20120013051A1
Автор: Dong-Min Im, Han-su Kim, Sang-kook Mah
Принадлежит: Samsung SDI Co Ltd

Provided are a porous anode active material, a method of preparing the same, and an anode and a lithium battery employing the same. The porous anode active material includes fine particles of metallic substance capable of forming a lithium alloy; a crystalline carboneous substance; and a porous carboneous material coating and attaching to the fine particles of metallic substance and the crystalline carboneous substance, the porous anode active material having pores exhibiting a bimodal size distribution with two pore diameter peaks as measured by a Barrett-Joyner-Halenda (BJH) pore size distribution from a nitrogen adsorption. The porous anode active material has the pores having a bimodal size distribution, and thus may efficiently remove a stress occurring due to a difference of expansion between a carboneous material and a metallic active material during charging and discharging. Further, the anode electrode and the lithium battery comprising the anode active material have excellent charge/discharge characteristics.

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Номер записи: 3
19-01-2012 дата публикации

Battery and battery system

Номер: US20120015220A1
Автор: Hirokazu Kawaoka, Hiroshi Nagase, Yasuyuki Tamane
Принадлежит: Toyota Motor Corp

The present invention is a battery comprising: a power section containing a sulfur-based material; a distinguishing section which discolors by chemical reaction with hydrogen sulfide; and an exterior body incorporating the power section and the distinguishing section, the distinguishing section being observable from outside the exterior body. By checking discoloration of the distinguishing section or the distinguishing means, it is possible to easily detect the presence or absence of hydrogen sulfide in the battery and then judge deterioration of the battery with non-destructive inspection.

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Номер записи: 4
19-01-2012 дата публикации

Cable-Type Secondary Battery

Номер: US20120015239A1
Автор: Byung-Hun Oh, Je-Young Kim, Ki-Tae Kim, Yo-Han Kwon
Принадлежит: LG Chem Ltd

Provided is a cable-type secondary battery including at least one anode extending longitudinally and having a horizontal cross section of a predetermined shape, a first electrolyte layer surrounding the anode and serving as an ion channel, at least one cathode extending longitudinally and having a horizontal cross section of a predetermined shape, the anode and the cathode arranged in parallel, a second electrolyte layer serving as an ion channel commonly surrounding the anode and the cathode, and a protection coating surrounding the second electrolyte layer. The cable-type secondary battery has free shape adaptation due to its linearity and flexibility. Introduction of the electrolyte layer on the electrode prevents a short circuit. The presence of a plurality of electrodes leads to an increased contact area therebetween and consequently a high battery rate. By adjusting the number of the anodes and the cathodes, it is easy to control the capacity balance therebetween.

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Номер записи: 5
19-01-2012 дата публикации

Method for producing cathode active material layer

Номер: US20120015251A1
Автор: Hideki Oki
Принадлежит: Toyota Motor Corp

The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiX a O b (X is a transition metal element of at least one kind selected from the group consisting of Co, Ni and Mn, a=0.7-1.3, and b=1.5-2.5), characterized in that the method comprises the steps of: forming a cathode active material precursor-film on the above-mentioned substrate by a physical vapor deposition method while setting a temperature of the substrate at 300° C. or less, and performing an annealing treatment for the cathode active material precursor-film at a temperature of a crystallizable temperature of the LiX a O b or more, and characterized in that the substrate has orientation property in a surface.

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Номер записи: 6
19-01-2012 дата публикации

Fuel cell system

Номер: US20120015272A1
Автор: Hiromi Tanaka, Masashi Fuji, Nobukazu MIZUNO, Osamu Yumita, Takayoshi Tezuka, Yoshiaki Naganuma
Принадлежит: Toyota Motor Corp

A fuel cell system suppresses the deterioration of an electrolyte membrane of a fuel cell. The fuel cell system comprises: a temperature rise speed calculation unit for calculating a target temperature rise speed of the fuel cell using a temperature of the fuel cell and a water content of the fuel cell; and a drive control unit for controlling a drive of the cooling water pump using the temperature rise speed of the fuel cell and the target temperature rise speed calculated by the temperature rise speed calculation unit. The drive control unit controls the drive of the cooling water pump such that a circulation amount of the cooling water is decreased when the temperature rise speed of the fuel cell is below the target temperature rise speed and controls the drive of the cooling water pump such that the circulation amount of the cooling water is increased when the temperature rise speed of the fuel cell is equal to or greater than the target temperature rise speed.

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Номер записи: 7
26-01-2012 дата публикации

Fuel cell assembly and fuel cell device

Номер: US20120021327A1
Автор: Naoki Watanabe, Nobuo Isaka, Shuichiro Saigan, Yousuke Akagi
Принадлежит: TOTO LTD

The fuel cell assembly of the present invention comprises a first fuel cell, a second fuel cell disposed adjacent to the first fuel cell, and a current collector for electrically connecting the first fuel cell and the second fuel cell. The first fuel cell and the second fuel cell are respectively furnished with an electrical generating portion for generating electricity, each of the electrical generation portion having a first electrode through the interior of which a first gas flows, a second electrode of a polarity different from the first electrode, on the exterior of which a second gas flows, and an electrolyte disposed between the first electrode and the second electrode. The current collector distributes and sources the current generated in the first fuel cell generating portion from two different locations on the first electrode on the first fuel cell to the second electrode of the second fuel cell.

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Номер записи: 8
02-02-2012 дата публикации

Electrode composite material, method for making the same, and lithium ion battery using the same

Номер: US20120028113A1
Автор: Chang-Yin Jiang, Dan Wang, Jian Gao, Jian-Jun Li, xian-kun Huang, Xiang-Ming He
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

An anode composite material includes an anode active material particle having a surface and a continuous aluminum phosphate layer. The continuous aluminum phosphate layer is coated on the surface of the anode active material particle. The present disclosure also relates to a lithium ion battery that includes the cathode composite material.

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Номер записи: 9
02-02-2012 дата публикации

Compression casing for a fuel cell stack and a method for manufacturing a compression casing for a fuel cell stack

Номер: US20120028159A1
Автор: Martin Refslund Nielsen, Niels H.B. Erikstrup
Принадлежит: Topsoe Fuel Cell AS

A fuel cell or electrolysis cell stack has force distribution members with one planar and one convex shape applied to at least its top and bottom face and in one embodiment further to two of its side faces. A compressed mat and further a rigid fixing collar surrounds the stack and force distribution members, whereby the stack is submitted to a compression force on at least the top and bottom face and potentially also to two side faces. The assembly is substantially gas tight in an axial direction of the primarily oval or circular shape and can be fitted with gas tight end plates to form robust gas inlet and outlet manifolds.

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Номер записи: 10
16-02-2012 дата публикации

Method for preparing an electrically conducting article

Номер: US20120038079A1
Автор: David Descarsin, Dominique Rocle, Gregoire Delacourt, Herve Galiano, Olivier Perrier, Philippe Mazabraud
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, RAIGI

The invention relates to a method for manufacturing an electrically conducting article comprising the following steps: a step for mixing via a dry route a powder comprising at least one thermosetting resin comprising at least two epoxide groups, a hardener compound powder for said resin and an electrically conducting filler powder; a step for thermocompression of the mixture of powders obtained in the previous step in a mold with a shape adapted to the article and at an effective temperature for obtaining cross-linking of the resin, at the end of which the electrically conducting article is obtained.

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Номер записи: 11
16-02-2012 дата публикации

Solid oxide fuel cell including a coupling structure

Номер: US20120040267A1
Автор: Duk-Hyoung Yoon, Shunsuke Taniguchi
Принадлежит: Samsung Mobile Display Co Ltd, Samsung SDI Co Ltd

A solid oxide fuel cell having a coupling structure, the solid oxide fuel cell including a plurality of cells, each cell having a cell cap at an end thereof; and the coupling structure, the coupling structure connecting the plurality of cells, wherein the coupling structure includes a connector, the connector including an insulating portion at a center thereof, and coupling portions adjacent to the insulating portion at respective sides of the insulating portion and coupled to the cell caps.

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Номер записи: 12
23-02-2012 дата публикации

Auxiliary electrodes for electrochemical cells containing high capacity active materials

Номер: US20120045670A1
Автор: Constantin I. Stefan, Ghyrn E. Loveness, Gregory Alan Roberts, Rainer J. Fasching, Ryan Kottenstette, Song Han
Принадлежит: Amprius Inc

Provided are novel electrochemical cells that include positive electrodes, negative electrodes containing high capacity active materials such as silicon, and auxiliary electrodes containing lithium. An auxiliary electrode is provided in the cell at least prior to its formation cycling and is used to supply lithium to the negative electrode. The auxiliary electrode may be then removed from the cell prior or after formation. The transfer of lithium to the negative electrode may be performed using a different electrolyte, a higher temperature, and/or a slower rate than during later operational cycling of the cell. After this transfer, the negative electrode may remain pre-lithiated during later cycling at least at a certain predetermined level. This pre-lithiation helps to cycle the cell at more optimal conditions and to some degree maintain this cycling performance over the operating life of the cell. Also provided are methods of fabricating such cells.

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Номер записи: 13
01-03-2012 дата публикации

Cathode active material for lithium secondary battery

Номер: US20120049109A1
Автор: Akira Urakawa, Nobuyuki Kobayashi, Ryuta Sugiura, Tsutomu Nanataki
Принадлежит: NGK Insulators Ltd

The present invention provides a cathode active material for a lithium secondary battery containing therein an open pore having a protrusion which is formed so as to extend from the inner surface of the open pore toward the center of the open pore. Specifically, the protrusion is formed so as to extend toward the center of a virtual circle formed by approximating the shape of a cross section of the open pore to a circular shape. The protrusion is formed of the same material as the remaining portion of the cathode active material.

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Номер записи: 14
15-03-2012 дата публикации

Method of treatment for imparting conductivity to surface of separator-use base member of solid polymer type fuel cell

Номер: US20120064232A1
Автор: Hiroshi Kihira, Keisuke Yamazaki, Koki Tanaka, Wataru Hisada
Принадлежит: Sintokogio Ltd

The present invention provides a method of treatment for imparting conductivity to a surface of a separator-use base member resulting in little distortion and superior conductive performance for a separator-use base member of a solid polymer type fuel cell made of any of a sheet of stainless steel, titanium, or titanium alloy, comprising a step of spray coating and drying on the surface of the separator-use base member a suspension prepared by mixing conductive compound particles 3 of an average particle size of 1 to 10 μm with ethanol or water so as to form a conductive compound particle-coated layer 2 , a step of blasting the conductive compound particle-coated layer 2 with blast particles 4 having an average particle size of 50 to 200 μm so as to drive the conductive compound particles 3 in the inside direction of the separator-use base member 3 and anchor them there, and a step of cleaning off conductive compound particles 3 not anchored to the surface of the separator-use base member 1 at that step and impurities.

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Номер записи: 15
15-03-2012 дата публикации

Phosphate Based Compound, Use Of The Compound In An Electrochemical Storage Device And Methods For Its Preparation

Номер: US20120064397A1
Автор: Christoph Kallfass, Helmut Schubert, Hermann Schier
Принадлежит: Max Planck Gesellschaft zur Foerderung der Wissenschaften eV

A phosphate based compound basically comprising—A: exchangeable cations used in charging and discharging, e.g. Li, Na, K, Ag, —B: non-exchangeable cations from the transition metals, group 3-12 of the periodic table of elements, e.g. Fe, Mn, Co, Cr, Ti, V, Cu, Sc, —C: 60 Mol-%-90 Mol-%, preferably 75 Mol-% of the compound being phosphate (PO 4 ) 3− anions, where oxygen is or may be partially substituted by a halide (e.g. F, Cl) and/or OH − to a maximum concentration of 10 Mol-% of the oxygen of the anions and wherein said (PO 4 ) 3− coordination polyhedra may be partially substituted by one or more of: SiO 4 4 silicate, BO 3 3− borate, CO 3 2− carbonate, H 2 O water up to a maximum amount of <31 Mol-% of the anions, said compound being in crystalline form and having open elongate channels extending through the unit cell of the structure and with the compound being present either in single crystal form or as an anisotropic microcrystalline or nanocrystalline material. The phosphate based compound is used as an electroactive material, for example as a cathode, an anode or a separator in an ion battery or electrochemical storage device or electrochemical cell.

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Номер записи: 16
15-03-2012 дата публикации

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

Номер: US20120064398A1
Автор: Jin-Kyu Hong, Jun-Sik Kim, Sung-Soo Kim, Tae-keun KIM
Принадлежит: Samsung SDI Co Ltd

Disclosed is rechargeable lithium battery that includes a positive electrode including a positive active material layer, a negative electrode including a negative active material and an electrolyte wherein the positive active material layer includes a positive active material, a binder, a conductive material, and an activated carbon, the activated carbon includes micropores in which manganese ions are adsorbed and trapped, and the activated carbon is included in an amount of about 0.1 wt % to about 3 wt % based on the total weight of the positive active material layer.

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Номер записи: 17
22-03-2012 дата публикации

Lithium secondary battery and anode therefor

Номер: US20120070734A1
Автор: Yasushi Tamura, Yoshihiro Uetani, Yuki Kajisa
Принадлежит: Nitto Denko Corp

The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art.

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Номер записи: 18
22-03-2012 дата публикации

Negative electrode for lithium ion secondary battery and battery using same

Номер: US20120070736A1
Автор: Hiroaki Tanizaki, Kenji Ohara, Norikazu Mineo
Принадлежит: Nissan Motor Co Ltd

There is provided a negative electrode for a lithium-ion secondary battery, including a conductive substrate, a negative electrode active material layer containing a negative electrode active material capable of absorbing and desorbing lithium ions and a conductive member having a lower elastic modulus than that of the conductive substrate, wherein at least part of the negative electrode active material is connected to the conductive substrate via the conductive member. There is also provided a lithium-ion secondary battery with such a negative electrode.

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Номер записи: 19
22-03-2012 дата публикации

Fuel Cell with Rapid Pressure Balancing

Номер: US20120070754A1
Автор: Kenneth Smith
Принадлежит: Kenneth Smith

A fuel cell provides for rapid pressure equalization across the proton exchange membrane by means of an expansion chamber on one side of the proton exchange membrane, the expansion chamber communicating with the gas on the other side of the membrane. Changes in size of the expansion chamber adjust pressure more rapidly than external control of flow rates.

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Номер записи: 20
05-04-2012 дата публикации

Lithium secondary battery

Номер: US20120082892A1
Автор: Atsushi Fukui, Kei Kobayashi, Maruo Kamino, Taizou Sunano
Принадлежит: Sanyo Electric Co Ltd

A lithium secondary battery has a positive electrode, a separator, and a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on a surface of the negative electrode current collector. The negative electrode mixture layer contains a negative electrode active material including a metal element capable of alloying with lithium. The negative electrode current collector includes a substrate made of a Cu—Fe—P alloy foil, and a surface layer provided on both surfaces of the substrate and made of pure copper. The surface layer has a Vickers hardness of 120 and less than that of the substrate. The negative electrode current collector has a proof stress of 308 MPa.

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Номер записи: 21
12-04-2012 дата публикации

Organic/inorganic composite electrolyte and electrochemical device prepared thereby

Номер: US20120088029A1
Автор: Dae-Jong Seo, Jang-Hyuk Hong, Sang-Young Lee, Seok-Koo Kim
Принадлежит: LG Chem Ltd

The present invention relates to a method for manufacturing an electrode having an organic/inorganic composite porous coating layer comprising porous inorganic particles and a binder polymer, wherein the porous inorganic particles have pores having such a size that lithium ions (Li + ) solvated in an electrolyte solvent can pass therethrough. The method comprises the steps of dispersing inorganic precursors and heat-decomposable compounds in a dispersion medium, misting the inorganic precursor solution, and performing a thermal decomposition and a crystallization processes, to thereby prepare porous inorganic particles, adding and mixing the porous inorganic particles to a polymer solution in which a binder polymer is dissolved, and coating the mixture onto a preliminarily formed electrode and drying the coating layer.

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Номер записи: 22
12-04-2012 дата публикации

Electrode material, power storage device, and electronic device

Номер: US20120088157A1
Автор: Takahiro Kawakami
Принадлежит: Semiconductor Energy Laboratory Co Ltd

To provide an electrode material with an increased capacity and a power storage device including the electrode material. Lithium iron phosphate having improved crystallinity is provided in which the lattice constant in the a-axis direction is greater than or equal to 10.3254×10 −10 m and less than or equal to 10.3258×10 −10 m, the lattice constant in the b-axis direction is greater than or equal to 6.0035×10 −10 m and less than or equal to 6.0052×10 −10 m, and the lattice constant in the c-axis direction is greater than or equal to 4.6879×10 −10 m and less than or equal to 4.69019×10 −10 m. Further, a power storage device whose capacity is increased by using the lithium iron phosphate as a positive electrode active material to increase the number of lithium ions intercalated and deintercalated in charging and discharging is provided.

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Номер записи: 23
12-04-2012 дата публикации

Composite end cell thermal barrier with an electrically conducting layer

Номер: US20120088174A1
Автор: Eric J. Connor, Gerald W. Fly
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A barrier layer for a fuel cell assembly is disclosed, the barrier layer having a thermally insulating layer having a first surface and a second surface, and an electrically conducting layer formed on the first surface of the thermally insulating layer. The thermally insulating layer may include a plurality of apertures formed therethrough, and the electrically conducting layer may be formed on a second surface of the thermally insulating layer and on the walls of the thermally insulating layer forming the apertures.

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Номер записи: 24
12-04-2012 дата публикации

Fuel cell and fuel cell stack

Номер: US20120088183A1
Автор: Keisuke Andou, Masajiro Inoue, Narutoshi Sugita, Takayuki Ogawa, Toshihiko Suenaga
Принадлежит: Honda Motor Co Ltd

In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

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Номер записи: 25
26-04-2012 дата публикации

Fuel cell system and control method therefor

Номер: US20120100449A1
Автор: Sho Usami, Yasushi Araki
Принадлежит: Toyota Motor Corp

A fuel cell system includes: a fuel cell activation portion that starts electricity generation of a fuel cell; a cooling medium passage that is provided with a pump and that is provided for passing a cooling medium through a cell-side passage for the cooling medium; and a pump control portion that stops the pump for a first predetermined period after a start of the electricity generation caused by the fuel cell activation portion at a time when a temperature of the fuel cell is a low temperature lower than or equal to a predetermined value, and that starts operating the pump after the first predetermined period elapses. The pump control portion includes a cooling medium reverse portion that alternately reverses a direction of flow of the cooling medium in the cell-side passage according to elapsed time by controlling operation of the pump after the first predetermined period elapses.

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Номер записи: 26
03-05-2012 дата публикации

Cable-type secondary battery

Номер: US20120107658A1
Автор: Heon-Cheol Shin, Hye-Ran JUNG, Hyung-Man CHO, Je-Young Kim, Ki-Tae Kim, Yo-Han Kwon
Принадлежит: LG Chem Ltd

Provided is a cable-type secondary battery including an anode current collector having a horizontal cross section of a predetermined shape and extending longitudinally, an anode active material pattern layer having anode active material patterns spaced away at a predetermined interval on the anode current collector, an electrolyte layer surrounding the anode active material pattern layer and serving as an ion channel, a cathode active material pattern layer having cathode active material patterns spaced away at a predetermined interval on the electrolyte layer at locations corresponding to those of the anode active material patterns, and a cathode current collector surrounding the cathode active material pattern layer. The cable-type secondary battery having the active material patterns has excellent flexibility to prevent the active material from falling off from the active material layer.

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Номер записи: 27
03-05-2012 дата публикации

Flexible Thin Printed Battery and Device and Method of Manufacturing Same

Номер: US20120107666A1
Автор: Abdelkader Hilmi, Guanghong Zheng, Jing Zhang, John C. Bailey, Mark A. Schubert
Принадлежит: Eveready Battery Co Inc

A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte is provided that enables the use of a metallic cathode current collector, thereby improving the performance of the battery. Printable gelled electrolytes and separators are provided, enabling the construction of both co-facial and co-planar batteries. Cell contacts are provided that reduce the potential for electrolyte creepage in the flat, flexible electrochemical cells of the within invention.

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Номер записи: 28
03-05-2012 дата публикации

Structure of solid oxide fuel cell

Номер: US20120107715A1
Автор: Kenji Suzuki, Kunihiko Yoshioka, Makoto Ohmori, Takashi Ryu
Принадлежит: NGK Insulators Ltd

On each of upper and lower surfaces of a flat-plate-like support substrate having a longitudinal direction and having fuel gas flow channels formed therein, a plurality of power-generating elements A connected electrically in series are disposed at predetermined intervals along the longitudinal direction. On each of the upper and lower surfaces of the support substrate, a plurality of recesses are formed at predetermined intervals along the longitudinal direction. Each of the recesses is a rectangular-parallelepiped-like depression defined by four side walls arranged in a circumferentially closed manner and a bottom wall. That is, in the support substrate, frames are formed to surround the respective recesses. Fuel electrodes of the power-generating elements A are embedded in the respective recesses, and inter connectors are embedded in respective recesses formed on the outer surfaces of the fuel electrodes.

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Номер записи: 29
03-05-2012 дата публикации

Apparatus and method for generating electricity in liquefied natural gas carrier

Номер: US20120108117A1
Автор: Byung Sung Kim, Eun Bae Lee, Hyuk Kwon, Hyun Jin Kim, Jung Ho Choi, Ki Seok Kim, Sung Geun Lee, Yong Seok Choi
Принадлежит: Daewoo Shipbuilding and Marine Engineering Co Ltd

Provided is an apparatus for generating electricity required by an LNG carrier which stores LNG, which is obtained by liquefying natural gas to ultra low temperature in a gas field, in an LNG storage tank and carries the stored LNG. The apparatus includes: a reformer reforming boil-off gas occurring in the LNG storage tank and producing synthetic gas; and a fuel cell generating electricity through an electrochemical reaction of the synthetic gas produced by the reformer.

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Номер записи: 30
10-05-2012 дата публикации

Wet lamination process for reducing mud cracking in fuel cell components

Номер: US20120111490A1
Автор: Bradley M. Houghtaling, Paul D. Nicotera, Robert R. Quiel, Scott C. Moose
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods of making a substantially crack-free electrode layer are described. The methods include depositing an electrode ink on a substrate; placing a solid polymer film on a surface of the wet electrode ink; drying the electrode ink; and removing the solid polymer film from the surface of the dry electrode ink to form the substantially crack-free electrode layer on the substrate.

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Номер записи: 31
10-05-2012 дата публикации

Cathode electrode for lithium-ion secondary battery and lithium-ion secondary battery using the same

Номер: US20120115024A1
Автор: Fenggang Zhao, Jiajai HU, Jianxun Xie, Leimin Xu, YING Wang, Yuansen XIE, Zhi Chen, Zilong YU
Принадлежит: Individual

A cathode electrode for lithium-ion secondary battery includes a current collector; and a cathode material layer comprising a bottom layer coated on the current collector and a top layer coated on the bottom layer. The lithium-ion transfer resistance of the active material particles in the bottom layer is smaller than that of the active material particles in the top layer, optimize the concentration polarization occurred in the cathode electrode during discharge, and enabling the lithium-ion secondary battery using the cathode electrode to be improved both in energy density and safety, and be further enhanced in specific capacity.

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Номер записи: 32
10-05-2012 дата публикации

Negative electrode active material, nonaqueous electrolyte battery and battery pack

Номер: US20120115032A1
Автор: Hiroki Inagaki, Keigo Hoshina, Norio Takami, Yasuhiro Harada, Yuki Otani
Принадлежит: Individual

According to one embodiment, a negative electrode active material includes a compound having a crystal structure of monoclinic titanium dioxide. The compound has a highest intensity peak detected by an X-ray powder diffractometry using a Cu-Kα radiation source. The highest intensity peak is a peak of a (001) plane, (002) plane, or (003) plane. A half-width (2θ) of the highest intensity peak falls within a range of 0.5 degree to 4 degrees.

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Номер записи: 33
10-05-2012 дата публикации

Process for producing fuel cell catalyst, fuel cell catalyst obtained by production process, and uses thereof

Номер: US20120115064A1
Автор: Kenichiro Ota, Ryuji Monden, Takuya Imai, Toshikazu Shishikura, Yasuaki Wakizaka
Принадлежит: Showa Denko KK

It is an object of the present invention to provide a production process which can produce a fuel cell catalyst having excellent durability and high oxygen reducing activity. The process for producing a fuel cell catalyst including a metal-containing oxycarbonitride of the present invention includes a grinding step for grinding the oxycarbonitride using a ball mill, wherein the metal-containing oxycarbonitride is represented by a specific compositional formula; balls in the ball mill have a diameter of 0.1 to 1.0 mm; the grinding time using the ball mill is 1 to 45 minutes; the rotating centrifugal acceleration in grinding using the ball mill is 2 to 20 G; the grinding using the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule; and when the ball mill is a planetary ball mill, the orbital centrifugal acceleration mill is 5 to 50 G.

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Номер записи: 34
17-05-2012 дата публикации

Stainless steel separator for fuel cell having m/mnx and moynz layer and method for manufacturing the same

Номер: US20120118724A1
Автор: Eun Young Kim, Hyun Sik Myung, Jong In Park, Kyeong Woo Chung, Yong Sik Yun, Yoo Taek JEON
Принадлежит: Eun Young Kim, Hyun Sik Myung, JEON Yoo Taek, Jong In Park, Kyeong Woo Chung, Yong Sik Yun

Disclosed herein is a method of manufacturing a stainless steel separator for a fuel cell. The stainless steel separator includes a stainless steel sheet, a first coating layer comprising metal/metal nitride films (M/MN x ) (0.5≦x≦1) on a surface of the stainless steel sheet, and a second coating layer comprising a metal oxynitride film (MO y N z ) (0.05≦y≦2, 0.25≦z≦1.0).

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Номер записи: 35
17-05-2012 дата публикации

Secondary battery, battery unit, and battery module

Номер: US20120121965A1
Автор: Akira Saito, Akira Sasaki, Hiroshi Takabayashi, Kunihiko Hayashi, Tetsuya Makino, Tomoyuki Nakamura, Yosuke Konishi
Принадлежит: Sony Corp

There is provided a secondary battery including a battery device that has a thickness of 3 to 20 mm, and a battery discharge capacity of 3 to 50 Ah, and an exterior material that packages the battery device. The battery device includes a positive electrode that has a positive electrode current collector and a positive electrode active material layer, a negative electrode that has a negative electrode current collector and a negative electrode active material layer, a separator that is interposed between the positive electrode and the negative electrode that are alternately laminated, a positive electrode tab that is electrically connected to a positive electrode current collector exposed portion and is led-out to the outside of the exterior material, and a negative electrode tab that is electrically connected to a negative electrode current collector exposed portion and is led-out to the outside of the exterior material.

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Номер записи: 36
17-05-2012 дата публикации

Fuel cell electrode catalyst, method for evaluating performance of oxygen-reducing catalyst, and solid polymer fuel cell comprising the fuel cell electrode catalyst

Номер: US20120122666A1
Автор: Hirofumi Iisaka, Yukiyoshi Ueno
Принадлежит: Toyota Motor Corp

According to the present invention, a fuel cell electrode catalyst comprising molybdenum, a different transition metal element, and a chalcogen element and having high activity is provided with an index for performance evaluation that is useful for Ogood catalyst design. Also, a fuel cell electrode catalyst is provided, such catalyst comprising at least one transition metal element (M1), molybdenum (Mo), and at least one chalcogen element (X), wherein the value of (Mo—O coordination number)/[(Mo—O coordination number)+(Mo—X coordination number)] is 0.44 to 0.66.

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Номер записи: 37
31-05-2012 дата публикации

Method for manufacturing a gasket

Номер: US20120131793A1
Автор: David Hock, Lars Fredriksson, Neil H. Puester
Принадлежит: Nilar International AB

A gasket for a bipolar battery comprises a structural part in the shape of a frame having an upper surface and a lower surface, and at least one channel to permit gas passage through the gasket. The structural part may be made from a first material having hydrophobic properties. The gasket further comprises at least a first sealing surface arranged in a closed loop projecting from the upper surface, and at least a second sealing surface arranged in a closed loop projecting from the lower surface. The first and the second sealing surfaces are provided on at least one sealing part, are made from a second material, and the first material of the structural part has a higher elastic modulus than an elastic modulus of the second material of the sealing parts. A bipolar battery and a method for manufacturing a gasket are also disclosed.

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Номер записи: 38
31-05-2012 дата публикации

Location of a fuel cell on a mobile device

Номер: US20120135277A1
Автор: Chris Wormald, Lyall Kenneth WINGER, Raymond Reddy
Принадлежит: Research in Motion Ltd

A mobile device having: a keyboard; a printed circuit board having at least one contact responsive to the keyboard; and a fuel cell assembly having: a fuel cell located between the keyboard and the printed circuit board, the fuel cell having a membrane and at least one aperture corresponding with the at least one contact; a tank adapted to store a fuel for the fuel cell; and piping connecting the tank with the fuel cell, where the fuel cell ventilates through the keyboard. Alternatively, the fuel cell acts as the printed circuit board and at least one contact for the keyboard is printed onto the fuel cell.

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Номер записи: 39
14-06-2012 дата публикации

Anode of cable-type secondary battery and manufacturing method thereof

Номер: US20120148918A1
Автор: Heon-Cheol Shin, Je-Young Kim, Ki-Tae Kim, Sang-Young Lee, Yo-Han Kwon
Принадлежит: LG Chem Ltd

Provided is a method for manufacturing an anode of a cable-type secondary battery having a solid electrolyte layer, including preparing an aqueous solution of an anode active material, making an anode by immersing a core as a current collector having a horizontal cross section of a predetermined shape and extending longitudinally in the aqueous solution, then applying an electric current to form a porous shell of the anode active material on the surface of the core, and forming a solid electrolyte layer on the surface of the anode by passing the anode through a solid electrolyte solution. The anode has a high contact area to increase the mobility of lithium ions, thereby improving battery performance. Also, the anode is capable of relieving stress and pressure in the battery, such as volume expansion during charging and discharging, thereby preventing battery deformation and ensuring battery stability.

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Номер записи: 40
14-06-2012 дата публикации

Inorganic and/or organic acid-containing catalyst ink and use thereof in the production of electrodes, catalyst-coated membranes, gas diffusion electrodes and membrane electrode units

Номер: US20120148936A1
Автор: Oemer Uensal, Sigmar Braeuninger
Принадлежит: BASF SE

Catalyst ink comprising one or more catalyst materials, a solvent component and at least one acid, an electrode comprising at least one catalyst ink according to the present invention, a membrane-electrode assembly comprising at least one electrode according to the invention or comprising at least one catalyst ink according to the present invention, a fuel cell comprising at least one membrane-electrode assembly according to the invention and also a process for producing a membrane-electrode assembly according to the present invention.

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Номер записи: 41
14-06-2012 дата публикации

Metal separator plate for fuel cell having coating film formed on surface and method for producing same

Номер: US20120148941A1
Автор: Ki-Jung Kim, Yoo-Taek Jeon
Принадлежит: Hyundai Hysco Co Ltd

Disclosed herein is a method for manufacturing a metal steel separator for fuel cells that has corrosion resistance and contact resistance not only at an initial stage but also after being exposed to high temperature/high humidity conditions in the fuel cell for a long period of time. The method includes preparing a stainless steel sheet as a matrix of the metal separator, forming a discontinuous coating film on the surface of the stainless steel sheet, the coating film being composed of at least one selected from gold (Au), platinum (Pt), ruthenium (Ru), iridium (Ir), ruthenium oxide (RuO 2 ), and iridium oxide (IrO 2 ), and heat treating the stainless steel sheet having the discontinuous coating film to form an oxide film on a portion of the stainless steel sheet on which the coating film is not formed. A metal separator for fuel cells manufactured by the method is also disclosed.

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Номер записи: 42
28-06-2012 дата публикации

Positive electrode active material for secondary battery and magnesium secondary battery using the same

Номер: US20120164537A1
Автор: Katsunori Nishimura, Masahiro Yonemoto, Tadashi Fujieda, Takashi Naito, Takuya Aoyagi, Yuichi Sawai
Принадлежит: HITACHI LTD

In a positive electrode active material for a magnesium secondary battery and a magnesium secondary battery using it, there is contained a powder particle containing a crystal phase having a structure formed with aggregation of a plurality of crystallites, and amorphous phases formed between the crystallites themselves; the amorphous phases contain at least one kind of a metal oxide selected from a vanadium oxide, an iron oxide, a manganese oxide, a nickel oxide and a cobalt oxide; and the crystal phase and the amorphous phases use the positive electrode active material enabling to store and release magnesium ions.

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Номер записи: 43
28-06-2012 дата публикации

Surface -controlled lithium ion-exchanging energy storage device

Номер: US20120164539A1
Автор: Aruna Zhamu, Bor Z. Jang, Chenguang Liu, David Neff
Принадлежит: Nanotek Instruments Inc

A surface-controlled, lithium ion-exchanging battery device comprising: (a) A positive electrode (cathode) comprising a first functional material having a first lithium-capturing or lithium-storing surface; (b) A negative electrode (anode) comprising a second functional material having a second lithium-capturing or lithium-storing surface; (c) A porous separator disposed between the two electrodes, and (d) A lithium-containing electrolyte (preferably liquid or gel electrolyte) in physical contact with the two electrodes; wherein at least one of the two electrodes contains therein a lithium source (e.g., lithium foil, lithium powder, stabilized lithium particles, etc) prior to the first charge or the first discharge cycle of the battery device. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.

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Номер записи: 44
05-07-2012 дата публикации

Simultaneous polymerization of two vinyl monomer mixtures to opposite faces of a flat porous substrate

Номер: US20120171361A1
Автор: Hai Yang, John Barber, Liping Zheng, Russell James Macdonald
Принадлежит: General Electric Co

A bi-polar electrode having ion exchange polymers on opposite faces of a porous substrate is formed using a method that includes providing an electrode substrate with activated carbon layers on opposite faces of the electrode substrate, wherein said faces have an outer perimeter band void of the activated carbon layers. The electrode substrate is placed in a thermoplastic envelope formed by a pair of polyethylene films. A Mylar sheet is placed in each side of the envelope against the electrode substrate, and the envelope is thermally sealed to the outer perimeter band of the electrode substrate void of activated carbon to form a first pocket on one side of the electrode substrate and a second pocket on the opposite side of the electrode substrate. The method also includes inserting a first polymerizable monomer mixture having an anion exchange group into the first pocket of the envelope and inserting a second polymerizable monomer mixture having a cation exchange group into the second pocket of the envelope. The first and second polymerizable monomers mixtures are then polymerized in an oven.

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Номер записи: 45
05-07-2012 дата публикации

Partially and fully surface-enabled metal ion-exchanging energy storage devices

Номер: US20120171574A1
Автор: Aruna Zhamu, Bor Z. Jang, Chenguang Liu, David Neff, Zhenning Yu
Принадлежит: Nanotek Instruments Inc

A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound. This energy storage device has a power density significantly higher than that of a lithium-ion battery and an energy density dramatically higher than that of a supercapacitor.

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Номер записи: 46
12-07-2012 дата публикации

Hot zone igniter

Номер: US20120175405A1
Автор: Diane M. England, Gail E. Geiger
Принадлежит: Delphi Technologies Inc

A method is provided for brazing a metal leadframe clip to an electrical resistance heating tip for an electrical resistance igniter, wherein the electrical resistance heating tip includes silicon carbide. The method includes forming a layer of SiO 2 /Al 2 O 3 on a surface of the electrical resistance heating tip; applying a braze alloy paste between the layer of SiO 2 /Al 2 O 3 and the metal leadframe clip; and heating the braze alloy, the metal leadframe clip and the electrical resistance heating tip to fuse the braze alloy.

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Номер записи: 47
12-07-2012 дата публикации

Lithium secondary battery

Номер: US20120176089A1
Автор: Duck-chul Hwang, Geun-bae Kim, Jan-Dee Kim, Jun-Won Suh, Won-II Jung, Yong-Chul Park
Принадлежит: Samsung SDI Co Ltd

Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: Li a Ni b Mn c M d O 2   (Formula 1) where 0.90≦a≦1.2; 0.5≦b≦0.9; 0<c<0.4; 0≦d≦0.2; Li a Ni b Co c Mn d M e O 2   (Formula 2) where 0.90≦a≦1.2, 0.5≦b≦0.9, 0<c<0.4, 0<d<0.4, and 0≦e≦0.2; Li a CoM b O 2   (Formula 3) where 0.90≦a≦1.2 and 0≦b≦0.2; and each M of Formulae 1-3 is independently selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations.

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Номер записи: 48
12-07-2012 дата публикации

Cathode material for fuel cell, cathode for fuel cell including the same, method of manufacturing the cathode, and solid oxide fuel cell including the cathode

Номер: US20120178016A1
Автор: Doh-won JUNG, Hee-Jung Park
Принадлежит: Samsung Electro Mechanics Co Ltd, SAMSUNG ELECTRONICS CO LTD

A cathode material for a fuel cell, the cathode material for a fuel cell including a lanthanide metal oxide having a perovskite crystal structure; and a bismuth metal oxide represented by Chemical Formula 1 below, Bi 2-x-y A x B y O 3 ,  Chemical Formula 1 wherein A and B are each a metal with a valence of 3, A and B are each independently at least one element selected from a rare earth element and a transition metal element, A and B are different from each other, and 0<x≦0.3 and 0<y≦0.3.

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Номер записи: 49
19-07-2012 дата публикации

Lithium secondary battery and positive electrode for the battery

Номер: US20120183851A1
Автор: Akira Tsujiko, Keiko Wasada, Sachie Yuasa, Takeshi Abe, Tomitaro Hara
Принадлежит: Toyota Motor Corp

The lithium secondary battery positive electrode provided by the present invention has a positive electrode collector and a positive active material layer formed on the collector. The positive active material layer is composed of a matrix phase containing at least one particulate positive active material and at least one binder, and an aggregate phase dispersed in the matrix phase, constituted by aggregation of at least one particulate positive active material and containing substantially no binder.

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Номер записи: 50
19-07-2012 дата публикации

Electrode including nanostructures for rechargeable cells

Номер: US20120183856A1
Автор: Mark C. Platshon, Song Han, Yi Cui
Принадлежит: Amprius Inc

A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.

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Номер записи: 51
19-07-2012 дата публикации

Non-aqueous electrolytic solution for lithium secondary battery and lithium secondary battery using the same

Номер: US20120183864A1
Автор: Kazuhiro Miyoshi, Koji Abe, Takaaki Kuwata
Принадлежит: UBE Industries Ltd

A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.

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Номер записи: 52
26-07-2012 дата публикации

Fuel cell system and method of operating fuel cell system

Номер: US20120189925A1
Автор: Masaaki Matsusue
Принадлежит: Toyota Motor Corp

A fuel cell system in which excess water vapor or nitrogen gas is prevented from remaining inside the fuel cell in intermittent operation. The fuel cell system is provided with a fuel cell having a cell stack formed by stacking a plurality of unit cells each having an anode electrode, a cathode electrode, an electrode membrane located between the anode electrode and the cathode electrode, and a reaction gas flow channel. The fuel cell system includes an estimation unit that estimates a water vapor amount and a nitrogen gas amount at a plurality of predetermined positions inside at least one of the electrolyte membrane and the reaction gas flow channel; and an operation control unit that compares, during an operation stop of intermittent operation, at least either of the water vapor amount or the nitrogen gas amount at each of the predetermined positions that has been estimated by the estimation unit with a threshold for each of the predetermined positions that has been set with consideration for a stacking direction of the unit cells and a flow channel direction of the reaction gas flow channel, and supplies a gas including hydrogen gas to the reaction gas flow channel and discharges water vapor and nitrogen gas from inside the fuel cell when at least either of the water vapor amount and the nitrogen gas amount exceeds the threshold at at least one of the positions.

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Номер записи: 53
26-07-2012 дата публикации

Manufacturing method of electrode catalyst layer, membrane electrode assembly using the same, fuel cell using the same and complex particles

Номер: US20120189941A1
Автор: Haruna Kurata, Hiroyuki Morioka, Kenichiro Oota, Saori Okada
Принадлежит: Individual

The present invention provides a manufacturing method of an electrode catalyst layer which contains a catalyst, carbon particles and a polymer electrolyte, wherein an oxide type of non-platinum catalyst is used as the catalyst and a fuel cell employing the electrode catalyst layer achieves a high level of power generation performance. The manufacturing method of the electrode catalyst layer of the present invention includes at least: preparing a first catalyst ink, in which a catalyst, first carbon particles and a first polymer electrolyte are dispersed in a first solvent, drying the first catalyst ink to form complex particles, preparing a second catalyst ink, in which the complex particles, second carbon particles and a second polymer electrolyte are dispersed in a second solvent, and coating the second catalyst ink on a substrate to form the electrode catalyst layer.

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Номер записи: 54
26-07-2012 дата публикации

Method for determining deterioration of fuel cell

Номер: US20120191385A1
Автор: Masaki Mitsui, Takashi Akiyama
Принадлежит: Panasonic Corp

Deterioration of a fuel cell is accurately determined within a short period of time by the steps of: (a) detecting an output power P of a fuel cell; (b) detecting a peak of the output power P after a startup of the fuel cell; (c) calculating a decrease rate D of the output power P after the peak of the output power P; (d) comparing the calculated decrease rate D with a reference decrease rate Dref; and (e) determining deterioration of the fuel cell based on a comparison result of the step (d).

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Номер записи: 55
02-08-2012 дата публикации

Molten carbonate fuel cells including reinforced lithium aluminate matrix, method for preparing the same, and method for supplying lithium source

Номер: US20120196204A1
Автор: Bo Hyun Ryu, In Gab Chang, In Hwan Oh, Jong Hee Han, Seong Cheol Jang, Shin Ae Song, Suk Woo Nam, Sung Pil Yoon, Tae Won Lee
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Disclosed is a molten carbonate fuel cell comprising a reinforced lithium aluminate matrix, a cathode, an anode, a cathode frame channel and an anode frame channel, wherein at least one of the cathode frame channel and the anode frame channel is filled with a lithium source. Disclosed also are a method for producing the same, and a method for supplying a lithium source. The molten carbonate fuel cell in which a lithium source is supplied to an electrode has high mechanical strength and maintains stability of electrolyte to allow long-term operation.

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Номер записи: 56
16-08-2012 дата публикации

Lithium secondary battery

Номер: US20120208087A1
Автор: Hideharu Takezawa, Taisuke Yamamoto
Принадлежит: Panasonic Corp

A lithium secondary battery according to the present invention includes: a positive electrode having a positive-electrode active material capable of occluding and releasing lithium ions; a negative electrode having a negative-electrode active material capable of occluding and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and an electrolyte having lithium-ion conductivity. The positive-electrode active material contains a nickel-type lithium-containing complex oxide. The negative-electrode active material contains a graphite-type material having a reversible capacity of 350 mAh/g or more and an irreversible capacity of 30 mAh/g or less. A ratio Qc/Qa between an irreversible capacity Qc per unit area in a portion of the positive electrode that opposes the negative electrode and an irreversible capacity Qa per unit area in a portion of the negative electrode that opposes the positive electrode is equal to or greater than 0.50 but less than 1.13. As a result, the charge-discharge cycle characteristics can be improved while ensuring a high capacity.

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Номер записи: 57
16-08-2012 дата публикации

Fuel cell system

Номер: US20120208098A1
Автор: Hiroki Ohkawara, Minoru Suzuki, Shin Iwata, Susumu Takami
Принадлежит: Aisin Seiki Co Ltd, Osaka Gas Co Ltd

A fuel cell system includes a source gas passage including a first desulfurizer that has a desulfurization performance relative to a source gas having a relatively higher dew point, and a second desulfurizer that has the desulfurization performance relative to a source gas having a relatively lower dew point and the source gas having the relatively higher dew point. The desulfurization performance of the second desulfurizer relative to the source gas having the relatively higher dew point is lower than the desulfurization performance of the second desulfurizer relative to the source gas having the relatively lower dew point. The first desulfurizer, the second desulfurizer, and a flowmeter are arranged at the source gas passage in the aforementioned order from an upstream side to a downstream side of the source gas passage in a flow direction of the source gas.

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Номер записи: 58
23-08-2012 дата публикации

Rechargeable battery

Номер: US20120214036A1
Автор: Jae-Hyung Kim
Принадлежит: Samsung SDI Co Ltd

In one aspect, a rechargeable battery for efficiently controlling a composite thickness on both edges of a coated unit when an uncoated region on an edge of an electrode plate is used for an electrode assembly is provided. The rechargeable battery can include: an electrode assembly including electrodes with opposite polarities on both ends of a separator; and an electrode terminal connected to the electrode assembly wherein the electrode includes a coated unit coated with a composite on an electrode plate and an uncoated region set on an edge of the electrode plate exposed on the coated unit.

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Номер записи: 59
30-08-2012 дата публикации

Carbon Dioxide Permeable Membrane

Номер: US20120219483A1
Автор: Alan C. West, Jennifer L. Wade, Klaus S. Lackner
Принадлежит: Columbia University of New York

A carbon dioxide permeable membrane is described. In some embodiments, the membrane includes a body having a first side and an opposite second side; a plurality of first regions formed from a molten carbonate having a temperature of about 400 degrees Celsius to about 1200 degrees Celsius, the plurality of first regions forming a portion of the body and the plurality of first regions extending from the first side of the body to the second side of the body; a plurality of second regions formed from an oxygen conductive solid oxide, the plurality of second regions combining with the plurality of first regions to form the body and the plurality of second regions extending from the first side of the body to the second side of the body; and the body is configured to allow carbon dioxide to pass from the first side to the second side.

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Номер записи: 60
30-08-2012 дата публикации

Method for manufacture and structure of multiple electrochemistries and energy gathering components within a unified structure

Номер: US20120219830A1
Автор: Ann Marie Sastry, Chia Wei Wang, Fabio Albano
Принадлежит: Sakti3 Inc

A method for using an integrated battery and device structure includes using two or more stacked electrochemical cells integrated with each other formed overlying a surface of a substrate. The two or more stacked electrochemical cells include related two or more different electrochemistries with one or more devices formed using one or more sequential deposition processes. The one or more devices are integrated with the two or more stacked electrochemical cells to form the integrated battery and device structure as a unified structure overlying the surface of the substrate. The one or more stacked electrochemical cells and the one or more devices are integrated as the unified structure using the one or more sequential deposition processes. The integrated battery and device structure is configured such that the two or more stacked electrochemical cells and one or more devices are in electrical, chemical, and thermal conduction with each other.

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Номер записи: 61
13-09-2012 дата публикации

Aqueous paste for electrochemical cell, electrode plate for electrochemical cell obtained by applying the aqueous paste, and battery comprising the electrode plate

Номер: US20120231337A1
Автор: Akinori Etoh, Gen Miyata, Naoto Nishimura, Syumpei Nishinaka, Takahiro Matsuyama, Takehito Mitate
Принадлежит: Individual

The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth) acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth) acrylic acid.

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Номер записи: 62
13-09-2012 дата публикации

Porous ceramic molten metal composite solid oxide fuel cell anode

Номер: US20120231366A1
Автор: Eric D. Wachsman, Sean Robert Bishop
Принадлежит: University of Florida Research Foundation Inc

A fuel cell anode comprises a porous ceramic molten metal composite of a metal or metal alloy, for example, tin or a tin alloy, infused in a ceramic where the metal is liquid at the temperatures of an operational solid oxide fuel cell, exhibiting high oxygen ion mobility. The anode can be employed in a SOFC with a thin electrolyte that can be a ceramic of the same or similar composition to that infused with the liquid metal of the porous ceramic molten metal composite anode. The thicknesses of the electrolyte can be reduced to a minimum that allows greater efficiencies of the SOFC thereby constructed.

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Номер записи: 63
13-09-2012 дата публикации

Composite proton conducting membrane with low degradation and membrane electrode assembly for fuel cells

Номер: US20120231367A1
Автор: Jing Li, Keping Wang, Yunsong Yang
Принадлежит: DAIMLER AG, Ford Motor Co

A small molecule or polymer additive can be used in preparation of a membrane electrode assembly to improve its durability and performance under low relative humidity in a fuel cell. Specifically, a method of forming a membrane electrode assembly comprising a proton exchange membrane, comprises providing an additive comprising at least two nitrogen atoms to the membrane electrode assembly.

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Номер записи: 64
13-09-2012 дата публикации

Process for production of scandia-stabilized zirconia sheet, scandia-stabilized zirconia sheet obtained by the process, and scandia-stabilized zirconia sintered powder

Номер: US20120231368A1
Автор: Kazuo Hata, Norikazu Aikawa
Принадлежит: NIPPON SHOKUBAI CO LTD

The process for production of a scandia-stabilized zirconia sheet according to the present invention is characterized in comprising the steps of pulverizing a scandia-stabilized zirconia sintered body to obtain a scandia-stabilized zirconia sintered powder having an average particle diameter (De) determined using a transmission electron microscope of more than 0.3 μm and not more than 1.5 μm, and an average particle diameter (Dr) determined by a laser scattering method of more than 0.3 μm and not more than 3.0 μm, and a ratio (Dr/De) of the average particle diameter determined by the laser scattering method to the average particle diameter determined using the transmission electron microscope of not less than 1.0 and not more than 2.5; preparing a slurry containing the scandia-stabilized zirconia sintered powder and a zirconia unsintered powder, wherein a percentage of the scandia-stabilized zirconia sintered powder to a sum of the scandia-stabilized zirconia sintered powder and the zirconia unsintered powder in the slurry is not less than 2 mass % and not more than 40 mass %; forming the slurry into a greensheet; and sintering the greensheet.

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Номер записи: 65
13-09-2012 дата публикации

Metallic bipolar plate for fuel cell and method for forming surface layer thereof

Номер: US20120231372A1
Автор: In Woong Lyo, Jeong Uk An, Seung Gyun Ahn, Sung Moon Choi, Yoo Chang Yang, Young Min Nam
Принадлежит: Hyundai Motor Co

A metallic bipolar plate for a fuel cell, in which a carbon coating layer containing fluorine is formed on the surface of a stainless steel base material, thus having excellent electrical conductivity and corrosion resistance and further excellent water draining performance and heat radiating performance. In the metallic bipolar plate for a fuel cell of the present invention, the internal residual stress in the surface coating layer is significantly reduced due to the addition of fluorine, and thereby it is possible to improve the adhesive strength between the stainless steel and the surface coating layer.

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Номер записи: 66
20-09-2012 дата публикации

Lithium ion secondary battery and method for manufacturing the same

Номер: US20120237822A1
Автор: Junpei Momo, Nobuhiro Inoue, Takahiro Kawakami, Tamae Moriwaka, Tomoya Futamura
Принадлежит: Semiconductor Energy Laboratory Co Ltd

A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO 4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

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Номер записи: 67
20-09-2012 дата публикации

Negative electrode plate for lead-acid battery and method for producing the same and lead-acid battery

Номер: US20120237829A1
Автор: Yoshiomi Fujiwara
Принадлежит: GS YUASA INTERNATIONAL LTD

A lead-acid battery includes a negative electrode plate containing carbon black, fibrous carbon and graphite in a negative active material thereof. The average primary particle size of the carbon black is 10 nm or more and 120 nm or less, and the content thereof is 0.05% by mass or more and 2.2% by mass or less based on the mass of negative active material. The average length of the fibrous carbon is 1 μm or more, and the content thereof is 0.02% by mass or more and 1.2% by mass or less based on the mass of negative active material. The average particle size of the graphite is 20 μm or more, and the content thereof is 0.02% by mass or more and 2.0% by mass or less based on the mass of negative active material.

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Номер записи: 68
27-09-2012 дата публикации

Battery active material, nonaqueous electrolyte battery and battery pack

Номер: US20120244442A1
Автор: Hiroki Inagaki, Norio Takami, Yasuhiro Harada, Yorikazu Yoshida
Принадлежит: Individual

According to one embodiment, a battery active material includes a complex oxide containing Nb and Ti and an element M. In the active material, the molar ratio (M/Ti) of the element M to Ti satisfies the following formula (I): 0<M/Ti≦0.5 (I). In the complex oxide containing Nb and Ti, the molar ratio (Nb/Ti) of Nb to Ti satisfies the following formula (II): 0≦Nb/Ti≦5 (II). The element M is at least one selected from the group consisting of B, Na, Mg, Al, Si, S, P, K, Ca, Mo, W, Cr, Mn, Co, Ni, and Fe.

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Номер записи: 69
04-10-2012 дата публикации

Lithium secondary battery and manufacturing method therefor

Номер: US20120251878A1
Автор: Hiroe Takenaka, Koji Takahata, Mariko Sumi, Masaya Takahashi, Mika Okubo, Tomoyoshi Ueki
Принадлежит: Toyota Motor Corp

The lithium secondary battery provided by the present invention includes a negative electrode having a negative electrode collector and a negative electrode layer including a negative electrode active material and formed on the surface of the negative electrode collector, and is characterized in that the negative electrode layer comprises a negative electrode active material layer composed primarily of a negative electrode active material, and an insulating layer composed primarily of an insulating filler and formed on the negative electrode active material layer, and the ratio (Sb/Sa) of a pore specific surface area of the insulating layer (Sb: m 2 /g) to a pore specific surface area of the negative electrode active material layer (Sa: m 2 /g), as measured by a mercury porosimeter, satisfies the relationship 1.2≦(Sb/Sa)≦2.5.

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Номер записи: 70
04-10-2012 дата публикации

Nonaqueous secondary battery and method of using the same

Номер: US20120251893A1
Автор: Fusaji Kita, Hideo Sakata, Kumiko Ishizuka
Принадлежит: Individual

A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.5 g/cm 3 or larger, and the nonaqueous electrolyte contains a compound having two or more nitrile groups in the molecule

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Номер записи: 71
04-10-2012 дата публикации

Self-humidifying membrane and self-humidifying fuel cell

Номер: US20120251903A1
Автор: King Lun Yeung, WEI Han
Принадлежит: Hong Kong University of Science and Technology HKUST

A self-humidifying fuel cell is made by preparing a porous substrate, coating the substrate with a zeolitic material and filling the pores with a proton-conducting material. The coating of the substrate includes selecting a zeolitic material, and applying coating on the pore walls and surface of the porous substrate, to form zeolitic material-coated pores. The resulting composite material is used as a self-humidifying proton-conducting membrane in a fuel cell.

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Номер записи: 72
04-10-2012 дата публикации

Pressure-based liquid level detection and control for a fuel cell stack assembly

Номер: US20120251909A1
Автор: Praveen Narasimhamurthy
Принадлежит: UTC Power Corp

A fluid detection system and method for a fuel cell power plant is disclosed having a pressure sensor ( 61, 161 ) positioned in a fuel cell stack assembly ( 10 ) to measure pressure of fluid/liquid in a fluid/liquid flow path ( 40, 42, 44 ) therein and to provide a pressure-based signal ( 90, 63 ). The pressure-based signal ( 90, 63 ) is used to control a liquid management arrangement ( 53 ) at least during start-up and shut-down of the cell stack assembly ( 10 ) to regulate water level. The liquid management arrangement ( 53 ) may include means ( 50, 51 ) for controllably applying and releasing a vacuum to a water manifold ( 44, 54; 100 ) of the cell stack assembly ( 10 ) to regulate water flow and level therein. The pressure-based control of water level may extend across the entire operating range of the cell stack assembly ( 10 ), or may be complemented during steady state operation by voltage-based sensors ( 66, 166 ).

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Номер записи: 73
04-10-2012 дата публикации

Method for controlling fuel cell system

Номер: US20120251910A1
Автор: Chihiro Wake, Yuji Matsumoto
Принадлежит: Honda Motor Co Ltd

A method includes an in-stop-mode power generating process and a first startup process. In the a first startup process, if an operation start instruction to start a fuel cell system is detected after the in-stop-mode power generating process, supply of a fuel gas from a fuel-gas supply apparatus is started, and supply of an oxide gas from an oxide-gas supply apparatus is started after a predetermined time has elapsed from the starting of supply of the fuel gas, when a pressure of an anode side is equal to or lower than a first threshold pressure.

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Номер записи: 74
04-10-2012 дата публикации

Polymer fuel cell stack and polymer fuel cell separator pair

Номер: US20120251918A1
Автор: Atusi Murata, Mitsuo Yoshimura, Takashi Morimoto, Toshihiro Matsumoto, Yoko Yamamoto
Принадлежит: Panasonic Corp

A fuel cell separator pair has first and second separators having front and back surfaces, a corrugated plate portion shaped in a wave form at the central portion, and a flat plate portion formed in the peripheral portion and surrounding the corrugated plate portion, wherein the corrugated plate portion of the front surface constitutes a reaction gas channel and the corrugated plate portion of the back surface constitutes a coolant channel. The back surfaces of the first and second separators are facing each other. The flat plate portions of the first and second separators are arranged on top of each other so as to be in contact with each other. The flat plate portion of the second separator protrudes toward the outside beyond the flat plate portion of the first separator. The fuel cell separator pair has a seal member (A) disposed on the flat plate portion of the front surface of the first separator, a seal member (B) disposed on the flat plate portion of the front surface of the second separator, and a seal member (C) disposed on the region protruding beyond the flat plate portion of the first separator in the flat plate portion of the back surface of the second separator.

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Номер записи: 75
11-10-2012 дата публикации

Fuel cell and apparatus for producing fuel cell

Номер: US20120258379A1
Автор: Masahiro Fukuta, Masami Kurimoto, Yasuhide FUKUSHIMA, Yohei Kataoka
Принадлежит: Honda Motor Co Ltd

A fuel cell is formed by stacking membrane electrode assemblies and metal separators. The metal separator is formed by adhering and joining together an anode separator and a cathode separator. In the metal separator, a step is provided on an outer circumferential end of the cathode separator, the step being spaced from an outer circumferential end of the anode separator. An adhesive layer is formed on the step between the outer circumferential end of the cathode separator and the outer circumferential end of the anode separator.

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Номер записи: 76
11-10-2012 дата публикации

Curable Compositions And Membranes

Номер: US20120259027A1
Автор: Bastiaan Van Berchum, Harro Antheunis, Jacko Hessing
Принадлежит: FUJIFILM MANUFACTURING EUROPE BV

A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes.

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Номер записи: 77
18-10-2012 дата публикации

Composite particles for electrochemical element electrode

Номер: US20120264014A1
Автор: Fumiaki Tsuchiya, Mayumi Fukumine
Принадлежит: Individual

The present invention provides a method of producing a composite particle for high density electrochemical element electrodes in electrochemical elements having low internal resistance and high capacitance. Slurry containing an electric conductive material and a binder is obtained, and the slurry is sprayed to a fluidized electrode active material to carry out fluidized-granulation, and further particles obtained by the fluidized-granulation are rolling-fluidized granulated, and thereby, composite particle for electrochemical element electrode, containing electrode active materials, electric conductive materials, and binders, and being structured of an outer layer portion (outer shell portion) and an inner layer portion (core portion) are obtained.

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Номер записи: 78
25-10-2012 дата публикации

Nonaqueous electrolyte secondary battery

Номер: US20120270105A1
Автор: Masaki Hasegawa, Natsumi Goto, Takashi Takeuchi
Принадлежит: Panasonic Corp

A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation.

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Номер записи: 79
25-10-2012 дата публикации

Fuel cell system and operating method for fuel cell system

Номер: US20120270124A1
Автор: Takashi Shigehisa, Takatoshi Masui
Принадлежит: Kyocera Corp, Toyota Motor Corp

A fuel cell system includes: a fuel cell that generates power using an oxidant gas and a fuel gas; estimating means for estimating an electric resistance of the fuel cell in accordance with a voltage and a current of the fuel cell; and temperature controlling means for performing control to raise a temperature of the fuel cell when the electric resistance estimated by the estimating means exceeds a target electric resistance range and reduce the temperature of the fuel cell when the estimated electric resistance falls below the target electric resistance range.

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Номер записи: 80
25-10-2012 дата публикации

Method for Detecting the Permeability State of the Ion Exchanger Polymer Membrane of a Fuel Cell

Номер: US20120270127A1
Автор: Gino Paganelli
Принадлежит: Individual

Procedure for detecting the permeability state of the polymeric ion-exchange membrane of a fuel cell stack, in which, as soon as the pressure difference in the anode and cathode circuits drops to a value below a threshold value P S , the pressure variation in said circuits for a predetermined time period t C is measured and the pressure difference in these circuits at the end of a predetermined time period, called the control pressure P C , is calculated and a warning is given when the control pressure P C is below a warning threshold P A .

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Номер записи: 81
01-11-2012 дата публикации

Porous medium with increased hydrophobicity and method of manufacturing the same

Номер: US20120276335A1
Автор: Bo Ki Hong, Kwang Ryeol Lee, Myoung Woon Moon, Sae Hoon Kim
Принадлежит: Hyundai Motor Co, Korea Advanced Institute of Science and Technology KAIST

The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

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Номер записи: 82
01-11-2012 дата публикации

Fuel cell stack, manufacturing method of fuel cell stack and replacement method of module as constituent of fuel cell stack

Номер: US20120276469A1
Автор: Fumishige Shizuku
Принадлежит: Toyota Motor Corp

A fuel cell stack includes: a first module configured to include an electrolyte membrane, an anode and a cathode; a second module configured to include a separator and placed adjacent to one surface of the first module via a first sealing member; and a third module configured to include a separator and placed adjacent to the other surface of the first module via a second sealing member. In this fuel cell stack, the first sealing member has the greater peel strength to the first module than the peel strength to the second module, and the second sealing member has the greater peel strength to the first module than the peel strength to the third module.

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Номер записи: 83
08-11-2012 дата публикации

Cathode compositions for lithium-ion batteries

Номер: US20120282523A1
Автор: Jeffrey R. Dahn, Zhonghua Lu
Принадлежит: 3M Innovative Properties Co

A lithium-ion battery has (a) an anode; (b) a cathode having a cathode composition of the formula Li[M 4 y M 5 1-2y Mn y ]O 2 , wherein 0.083<y<0.5 with the proviso that M 4 and M 5 do not include chromium, and wherein M 4 is Co and M 5 includes the combination of Li and Ni; and (c) an electrolyte.

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Номер записи: 84
08-11-2012 дата публикации

Battery structures, self-organizing structures, and related methods

Номер: US20120282530A1
Автор: William Douglas Moorehead, Yet-Ming Chiang
Принадлежит: Massachusetts Institute of Technology

An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

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Номер записи: 85
15-11-2012 дата публикации

Method for preparing lithium manganese oxide positive active material for lithium ion secondary battery, positive active material prepared thereby, and lithium ion secondary battery including the same

Номер: US20120288767A1
Автор: Hae In Cho, Mi Sun Lee, Sung Nim Jo
Принадлежит: Samsung Corning Precision Materials Co Ltd

A method for preparing a lithium manganese oxide positive active material for a lithium ion secondary battery, which has spherical spinel-type lithium manganese oxide particles having two or more different types of sizes, the method including uniformly mixing manganese oxide having two or more different types of sizes with a lithium containing compound, and heat treating the resultant mixture to obtain lithium manganese oxide.

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Номер записи: 86
22-11-2012 дата публикации

Catalysts for use in electrochemical applications and electrodes and devices using same

Номер: US20120295137A1
Автор: Dieter von Deak, Elizabeth Biddinger, Umit S. Ozkan
Принадлежит: Ohio State University

An electrode for reduction of an oxidant including a phosphorus-doped carbon-containing catalyst represented by the chemical formula CN x P y , where x is from 0 to about 10 wt. % and y is from about 1 ppm to about 10 wt. %. A device for producing electricity by facilitating an electrochemical reaction between a fuel and an oxidant. The device including a first electrode for oxidizing the fuel to produce protons and electrons. The device further includes a second electrode in electrical communication with the first electrode when electrically connected to the external circuit. The second electrode includes a phosphorus-doped carbon-containing catalyst for reducing the oxidant and is represented by the chemical formula CN x P y , where x is from 0 to about 10 wt. % and y is from about 1 ppm to about 10 wt. %. The device further includes an electrolyte, such as, a membrane, separating the first electrode from the second electrode.

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Номер записи: 87
22-11-2012 дата публикации

Positive electrode material for a lithium-ion accumulator

Номер: US20120295162A1
Автор: Christian Jordy, Evgeniya T. Devyatkina, Georges Caillon, Nina V. Kosova, Stephane Levasseur, Thierry Hezeque
Принадлежит: SAFT Societe des Accumulateurs Fixes et de Traction SA, Umicore NV SA

A compound of formula Li a+y (M 1 (1−t) Mo t ) 2 M 2 b (O 1−x F 2x ) c wherein: M 1 is selected from the group consisting in Ni, Mn, Co, Fe, V or a mixture thereof; M 2 is selected from the group consisting in B, Al, Si, P, Ti, Mo; with 4≦a≦6; 0<b≦1.8; 3.8≦c≦14; 0≦x<1; −0.5≦y≦0.5; 0≦t≦0.9; b/a<0.45; the coefficient c satisfying one of the following relationships: c=4+y/2+z+2t+1.5b if M 2 is selected from B and Al; c=4+y/2+z+2t+2b if M 2 is selected from Si, Ti and Mo; c=4+y/2+z+2t+2.5b if M 2 is P; with z=0 if M 1 is selected from Ni, Mn, Co, Fe and z=1 if M 1 is V.

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Номер записи: 88
22-11-2012 дата публикации

Method for producing lithium ion secondary battery

Номер: US20120295164A1
Автор: Hiroki Nagai, Tomohiro Nakano
Принадлежит: Toyota Motor Corp

The method for producing a lithium ion secondary battery includes: selecting a positive electrode sheet, negative electrode sheet, and separator sheet; constructing an electrode assembly by superimposing the selected sheets; and housing the above electrode assembly in a battery case along with an electrolyte solution. In the method, at least one of the sheets is selected such that it satisfies the relationship 0.8<a/b<1.5 where a and b represent the slopes of straight lines respectively that are determined in tests under the respective conditions of (1) a high-rate loading-unloading cycle and (2) a low-rate loading-unloading cycle.

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Номер записи: 89
22-11-2012 дата публикации

High-potential stable oxide support for polymer electrolyte fuel cell

Номер: US20120295184A1
Автор: Hiroyuki Uchida, Katsuyoshi Kakinuma, Makoto Uchida, Masahiro Watanabe, Takeo Kamino
Принадлежит: University of Yamanashi NUC

Disclosed is an oxide and/or nitride support for electrode catalysts, which is used for electrodes for polymer electrolyte fuel cells (PEFC). The support for electrode catalysts is an aggregation body of primary particles of oxide of at least one kind of metal selected from rare earths, alkaline earths, transition metals, niobium, bismuth, tin, antimony, zirconium, molybdenum, indium, tantalum, and tungsten, and the aggregation body is configured such that at least 80% of the metal oxide primary particles having a size of 5 nm to 100 nm aggregate and bind each other to form dendritic or chain structures each of which is made of 5 or more of the metal oxide primary particles.

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Номер записи: 90
29-11-2012 дата публикации

Battery cell and device provided with the battery cell

Номер: US20120301761A1
Автор: Takeshi Sasaki
Принадлежит: GS YUASA INTERNATIONAL LTD

The battery cell have a first and a second current collector, wherein the first current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of positive-electrode layer stack sections of an electrode assembly, the second current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of negative-electrode layer stack sections, and a connecting location between the first current collector and the positive-electrode layer stack sections and a connecting location between the second current collector and the negative-electrode layer stack sections are set so as to be asymmetrical to each other with respect to a second virtual plane.

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Номер записи: 91
29-11-2012 дата публикации

Positive electrode active material for lithium ion battery, method for producing the same, positive electrode for lithium ion battery, and lithium ion battery

Номер: US20120301780A1
Автор: Kan Kitagawa, Toyotaka Yuasa
Принадлежит: Hitachi Metals Ltd

A positive electrode active material for a lithium ion battery includes a material represented by chemical formula LiMPO 4 where M includes at least one of iron, manganese, cobalt, and nickel. Particles of the positive electrode active material have a diameter d in the range of 10 nm to 200 nm, the diameter d being determined by observation under a transmission electron microscope. A ratio d/D of the diameter d to a crystallite diameter D is in the range of 1 to 1.35, the crystallite diameter D being determined from a half width measured by X-ray diffraction. The positive electrode active material is coated with carbon, an amount of the carbon being in the range of 1 weight percent to 10 weight percent.

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Номер записи: 92
29-11-2012 дата публикации

Carbon nanotube and nanofiber film-based membrane electrode assemblies

Номер: US20120301812A1
Автор: Ben Wang, Changchun Zeng, Chun Zhang, Jian-ping (Jim) Zheng, Wei Zhu, Zhiyong Liang
Принадлежит: Florida State University Research Foundation Inc

A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The method can include the steps of placing buckypaper in a vessel with a catalyst-precursor salt and a fluid. The temperature and pressure conditions within the vessel are modified so as to place the fluid in the supercritical state. The supercritical state of the supercritical fluid containing the precursor salt is maintained for period of time to impregnate the buckypaper with the catalyst-precursor salt. Catalyst nanoparticles are deposited on the buckypaper. The supercritical fluid and the precursor are removed to form a metal catalyst impregnated buckypaper.

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Номер записи: 93
06-12-2012 дата публикации

Electrode compositions useful for energy storage devices and other applications; and related devices and processes

Номер: US20120308895A1
Автор: David Charles Bogdan, Michael Alan Vallance, Richard Louis Hart
Принадлежит: General Electric Co

A positive electrode composition is described, containing granules of at least one electroactive metal and at least one alkali metal halide. The granules have a substantially spheroidal shape. An energy storage device and an uninterruptable power supply device are also described. They include compartments for positive and negative electrode compositions; a solid separator capable of transporting alkali metal ions between the compartments; and associated current collectors for the electrodes. The positive electrode composition contains substantially spheroidal granules. Related methods for the preparation of an energy storage device are also disclosed.

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Номер записи: 94
06-12-2012 дата публикации

Bipolar separator assembly for fuel cells and method of making same

Номер: US20120308910A1
Автор: Lawrence J. Novacco, Michael Primerano, William Morris
Принадлежит: Fuelcell Energy Inc

A bipolar separator assembly for use with a fuel cell comprising: a plate member having opposing first and second surfaces compatible with fuel gas and oxidant gas, respectively, the plate member having first and second opposing end segments and third and fourth opposing end segments which are transverse to the first and second opposing end segments; first and second pocket members situated adjacent the first and second end segments and extending outward of the first surface, the first and second pocket members being adapted to enclose opposing ends of an anode current collector, and third and fourth pocket members situated adjacent the third and fourth end segments and extending outward of the second surface, the third and fourth pocket members being adapted to enclose opposing ends of a cathode current collector, wherein at least a portion of each of the first, second, third and fourth pocket members is formed separately from the plate member and is releasably positioned relative to the plate member.

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Номер записи: 95
06-12-2012 дата публикации

Cathode material for fuel cell, cathode including the cathode material, solid oxide fuel cell including the cathode

Номер: US20120308915A1
Автор: Dengjie CHEN, Hee-Jung Park, Huangang SHI, Kyoung-seok MOON, Soo-Yeon Seo, Zongping Shao
Принадлежит: Samsung Electro Mechanics Co Ltd, SAMSUNG ELECTRONICS CO LTD

A cathode material for a fuel cell, the cathode material including a first metal oxide having a perovskite structure; and a second metal oxide having a spinel structure.

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Номер записи: 96
06-12-2012 дата публикации

Surface alloying of stainless steel

Номер: US20120308917A1
Автор: Gayatri Vyas Dadheech, Mahmoud H. Abd Elhamid
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.

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Номер записи: 97
13-12-2012 дата публикации

Fuel Cell Bypass Diode Structures and Attachment Methods

Номер: US20120315509A1
Автор: Arne Ballantine, Chockkalingam Karuppaiah, Matthias Gottmann
Принадлежит: Bloom Energy Corp

A fuel cell system includes a fuel cell stack which includes a plurality of fuel cells contacted in series by a plurality of interconnects. The various embodiments provide systems and methods for coupling a fuel cell stack with an electric bypass module within a hot zone. The bypass module may include elements for conducting a current between interconnects in a fuel cell stack and thereby bypass a failed fuel cell that has become a resistive parasitic load.

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Номер записи: 98
13-12-2012 дата публикации

Hydrogen passivation shut down system for a fuel cell power plant

Номер: US20120315558A1
Автор: Carl A. Reiser, Timothy W. Patterson, Jr., Tommy Skiba
Принадлежит: UTC Power Corp

The invention is a hydrogen passivation shut down system for a fuel cell power plant ( 10, 200 ). During shut down of the plant ( 10, 200 ), hydrogen fuel is permitted to transfer between an anode flow path ( 24, 24′ ) and a cathode flow path ( 38, 38′ ) while a low-pressure hydrogen generator ( 202 ) selectively generates an adequate amount of hydrogen and directs flow of the low-pressure hydrogen into the fuel cell ( 12′ ) downstream from a hydrogen inlet valve ( 52′ ) to maintain the fuel cell ( 12′ ) in a passive state.

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Номер записи: 99
20-12-2012 дата публикации

Method for reducing activation of lithium secondary battery and lithium secondary battery having reduced activation

Номер: US20120319655A1
Автор: Guoxian Liang, Nathalie Ravet
Принадлежит: Guoxian Liang, Nathalie Ravet

A method for reducing activation of lithium secondary battery including at least a cathode comprising micron-sized particles of a compound having the formula C-A x M(XO 4 ) y which have an olivine structure and which carry, on at least a portion of their surface, a deposit of carbon deposited by pyrolysis, the formula A x M(XO 4 ) y being such that: A includes Li; M includes Fe(II) or Mn(II) or a mixture thereof; XO 4 includes PO 4 ; and O<x≦2 et O<y≦2, the coefficients x and y being chosen independently so as to ensure electroneutrality of the A x M(XO 4 ) y compound, the method including performing at least one charge and/or discharge cycle of the battery at a temperature above about 30° C. Also, a lithium secondary battery having the above characteristics and which has a substantially constant capacity within the first hundred (100) charge and/or discharge cycles.

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Номер записи: 100