Patents Examined by Helen Oi K Conley
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Patent number: 11515517Abstract: A positive electrode for a nonaqueous secondary battery including an active material layer which has sufficient electron conductivity with a low ratio of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery including an active material layer which is highly filled with an active material, id est, including the active material and a low ratio of a conductive additive. The active material layer includes a plurality of particles of an active material with a layered rock salt structure, graphene that is in surface contact with the plurality of particles of the active material, and a binder.Type: GrantFiled: December 11, 2019Date of Patent: November 29, 2022Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Takahiro Kawakami, Masaki Yamakaji, Mako Motoyoshi, Rika Yatabe
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Patent number: 11515554Abstract: A membrane electrode assembly for the fuel cell includes a solid polymer electrolyte membrane, an anode catalyst layer assembled to one surface of the solid polymer electrolyte membrane, and a cathode catalyst layer assembled to another surface of the solid polymer electrolyte membrane. The membrane electrode assembly contains cerium ions. The membrane electrode assembly includes a power-generation region and a non-power-generation region. The power-generation region includes the catalyst layers on both surfaces of the solid polymer electrolyte membrane in a center portion. The non-power-generation region is without the catalyst layer on at least one surface of the solid polymer electrolyte membrane in an outer periphery portion. A cerium ion content per area in the power-generation region is larger than a cerium ion content per area in the non-power-generation region.Type: GrantFiled: May 7, 2021Date of Patent: November 29, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junji Nakanishi, Tsunemasa Nishida, Mikihiro Hori
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Patent number: 11508972Abstract: A manufacturing apparatus for a fuel cell member includes a positioning device for positioning a resin frame equipped membrane electrode assembly and a separator member. This positioning device includes a base and positioning pins which are inserted into positioning holes formed in the resin frame equipped membrane electrode assembly and the separator member. Lifting members are provided around the positioning pins. The lifting member is lifted and lowered by a lifting mechanism.Type: GrantFiled: August 3, 2021Date of Patent: November 22, 2022Assignee: Honda Motor Co., Ltd.Inventors: Yusuke Wada, Ryo Takano
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Patent number: 11495848Abstract: One embodiment of the present disclosure relates to a secondary battery module. A secondary battery module includes a plurality of battery cells; and a first frame configured to accommodate and cool the plurality of battery cells, wherein the first frame includes: a housing configured to accommodate the plurality of battery cells; and at least one cooling plate coupled to one surface of the housing, interposed between groups of one or more battery cells among the plurality of battery cells disposed in the housing, and configured to fix the plurality of battery cells and dissipate heat generated from the plurality of battery cells.Type: GrantFiled: July 20, 2020Date of Patent: November 8, 2022Assignee: SK Innovation Co., Ltd.Inventors: Seung Hoon Ju, Kwan Yong Kim
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Patent number: 11489185Abstract: An generator that uses on the heat of condensation of water vapor as an energy source to produce electrical power. A hygroscopic, membrane electrode assembly is configured having an ion conductive hygroscopic electrolyte sandwiched between a pair of electrodes. One electrode is in contact with the water and the other electrode being in contact with a water vapor source whereby an electrochemical potential differential is produced across an electrical load by the reaction potential of the hygroscopic electrolyte with water vapor relative to the electrolyte's reaction potential with the liquid water. Power is supplied to an external load connected between the electrodes with water vapor being electrolyzed at the electrode that is in contact with water vapor and liquid water being reduced at the electrode that is in contact with liquid water.Type: GrantFiled: May 18, 2020Date of Patent: November 1, 2022Inventor: Lonnie G Johnson
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Patent number: 11489171Abstract: This disclosure provides a manufacturing method for manufacturing a fuel cell separator. The manufacturing method includes: providing a material sheet including a fiber sheet, carbon particles, and a resin, the carbon particles and the resin being applied to the fiber sheet; and pressing the material sheet into a recess-projection shape by which a gas circulation passage is to be formed, and forming a top portion and a shift portion. In the pressing of the material sheet, the material sheet is pressed such that a draft of the top portion is higher than a draft of the shift portion.Type: GrantFiled: May 12, 2021Date of Patent: November 1, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nobuaki Nonoyama, Tomoko Kozaki
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Patent number: 11476472Abstract: The invention relates to a separator plate for an electrochemical system, comprising: at least one first through-opening for conducting a reaction medium through the separator plate; an active region having structures for guiding a reactor medium along a flat side of the separator plate; and a first sealing structure, surrounding the first through-opening, for sealing the first through-opening. The first sealing structure has a first passage for conducting a reaction medium through the first sealing structure, which passage points in a direction facing away from the active region. The invention also relates to a bipolar plate for an electrochemical system, which bipolar plate comprises the described separator plate.Type: GrantFiled: May 29, 2019Date of Patent: October 18, 2022Assignee: Reinz-Dichtungs-GmbHInventors: Thomas Stoehr, Andre Speidel
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Patent number: 11469424Abstract: A fuel cell catalyst which has high power output characteristics and suppresses degradation of power generation performance due to starting, stopping or load variation; a manufacturing method thereof; a membrane electrode assembly for fuel cell; and a fuel cell including the same. The fuel cell catalyst includes at least catalytically active species and a carrier supporting the catalytically active species. The catalytically active species are at least one selected from the group consisting of platinum, a platinum alloy, and a core-shell catalyst in which a core of a metal different from platinum is coated with a shell containing platinum, the carrier is a carbon material, and at least one of the catalytically active species and the carrier contain(s) fluorine atoms.Type: GrantFiled: April 15, 2019Date of Patent: October 11, 2022Inventors: Sojiro Kon, Natsuki Mine, Yoshinori Sato, Masashi Yamamoto, Tetsuo Nishida
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Patent number: 11456449Abstract: An electrode for a secondary battery comprises a current collector; and an active material-containing layer has active materials which comprise titanium-containing composite oxide having an orthorhombic crystal structure and represented by a general formula Li2+aM12?bTi6?cM2dO14+?; wherein the active material-containing layer has intensity ratio Ia/Ib in an X-ray diffraction pattern of the active material-containing layer, the Ia and the Ib are obtained by powder X-ray diffraction method using Cu-K? ray, the intensity ratio is within a range of 0.5?Ia/Ib?2, the Ia is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 42°?2??44°, and the Ib is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 44°<2??48°.Type: GrantFiled: July 26, 2019Date of Patent: September 27, 2022Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions CorporationInventors: Tetsuya Sasakawa, Wen Zhang, Yasuhiro Harada, Norio Takami
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Patent number: 11450853Abstract: An object of the present invention is to provide a carbon material for negative electrodes of non-aqueous secondary batteries having a high capacity, a high output, excellent cycle characteristics and a low irreversible capacity. The present invention relates to a carbon material for negative electrodes of non-aqueous secondary batteries, the carbon material comprising: (1) a composite carbon particles (A) containing elemental silicon, and (2) amorphous composite graphite particles (B) in which graphite particles (C) and amorphous carbon are composited.Type: GrantFiled: May 27, 2016Date of Patent: September 20, 2022Assignee: Mitsubishi Chemical CorporationInventors: Daigo Nagayama, Tooru Fuse, Hisako Kondo
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Patent number: 11437633Abstract: A fuel cell seal structure includes stacked fuel cells and an electrolyte membrane or a film supported between the neighboring metal separators. Each of the stacked fuel cells includes neighboring metal separators each including a plate portion having a plate portion surface, a bead seal portion projecting from the plate portion surface and including a distal end having a distal end surface, an elastic body disposed on the distal end surface, and a stopper disposed on the plate portion surface and away from the elastic body. The neighboring metal separators are disposed such that elastic bodies are located opposed to each other in a stacking direction with the electrolyte membrane or the film supported in between the elastic bodies and face each other, and such that stoppers are located neighboring to each other in the stacking direction with the electrolyte membrane or the film supported in between the stoppers.Type: GrantFiled: January 26, 2021Date of Patent: September 6, 2022Assignee: NOK CORPORATIONInventors: Ryo Tomita, Hajime Yui
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Patent number: 11437690Abstract: A nonaqueous battery includes a positive electrode and a negative electrode. At least one of the positive electrode and the negative electrode includes a current collector, an intermediate layer, and an active material layer. The intermediate layer is interposed between the current collector and the active material layer and includes graphite particles and insulating particles. In a cross section of the intermediate layer in a thickness direction, a major axis diameter of the graphite particles is equal to or greater than the thickness of the intermediate layer. In X-ray diffraction measurement of the intermediate layer by an out-of-plane method, a ratio of an intensity of an 110 diffraction line of a graphite crystal to an intensity of a 002 diffraction line of the graphite crystal is 0.0011 or more.Type: GrantFiled: April 26, 2018Date of Patent: September 6, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Torita, Akihiro Ochiai, Yusuke Fukumoto, Harunari Shimamura
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Patent number: 11431003Abstract: A separator assembly used for a fuel cell includes one pair of metal separators joined together and including a bead seal section including one pair of seal bead portions projecting in opposite directions respectively, an elastic body disposed in the bead seal section, and a first communication hole which extends through the separator assembly in a thickness direction of the separator assembly and which allows a reaction gas or a coolant to flow through the separator assembly. The bead seal section is disposed along an outer periphery of the separator assembly and along a shape of the first communication hole. The elastic body of a predetermined length is disposed in the bead seal section.Type: GrantFiled: December 22, 2020Date of Patent: August 30, 2022Inventors: Kento Suzuki, Kentaro Ishida, Kazuo Nunokawa, Akihito Giga
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Patent number: 11424506Abstract: The invention relates to a rechargeable battery transportation device (10) for a re-chargeable battery (22), in particular a lithium rechargeable battery, with (a) an external case (12) which has (i) a base body (16) with a filling opening (20), (ii) a cap (18) for creating an air-tight seal of the filling opening (20), and (iii) a ventilation opening (28), and (b) an inner tank (14) which (i) is arranged in the external case (12) and (ii) encloses an accommodation space (30) for accommodating the rechargeable battery (22). According to the invention, between the external case (12) and the inner tank (14) there is at least one flow path (S) from the accommodation space (30) to the ventilation opening (28), and a heat absorption material (36) is arranged along the flow path (S).Type: GrantFiled: March 5, 2019Date of Patent: August 23, 2022Assignee: STOEBICH TECHNOLOGY GMBHInventors: Sascha Bruns, Stefan Tappe, Marc Dinse, Frank Krüger
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Patent number: 11424478Abstract: A solid battery that includes a positive electrode terminal, a negative electrode terminal spaced apart from the positive electrode terminal, a positive electrode layer electrically connected to the positive electrode terminal, a negative electrode layer electrically connected to the negative electrode terminal, a first solid electrolyte layer between the positive electrode layer and the negative electrode layer and containing a first solid electrolyte, and a second solid electrolyte layer between the positive electrode layer and the negative electrode terminal or between the negative electrode layer and the positive electrode terminal, and containing a second solid electrolyte having a glass transition temperature lower than a crystallization temperature of the first solid electrolyte and having a crystallization temperature equal to or higher than a glass transition temperature of the first solid electrolyte, and the second solid electrolyte layer having an ion conductivity lower than that of the first soliType: GrantFiled: July 9, 2020Date of Patent: August 23, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Koichi Nakano, Sumito Shiina
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Patent number: 11417892Abstract: Provided is a highly reliable fuel cell that improves power generation efficiency of the fuel cell and that is less likely to cause damage to an electrode and an electrolyte film. The fuel cell includes a support substrate (2, 3) having a region in which a support portion having a mesh-like shape in a plan view is provided, a first electrode 4 on the support substrate, an electrolyte film 5 on the first electrode, and a second electrode 6 on the electrolyte film. The first electrode includes a first thin film electrode 4A formed in a manner of covering at least the region, and a first mesh-like electrode 4B connected to the first thin film electrode and provided corresponding to the support portion. The first mesh-like electrode 4B has a film thickness larger than that of the first thin film electrode and has a mesh-like shape in a plan view.Type: GrantFiled: October 12, 2018Date of Patent: August 16, 2022Assignee: Hitachi High-Tech CorporationInventors: Noriyuki Sakuma, Yoshitaka Sasago, Aritoshi Sugimoto, Nobuyuki Mise, Seiichi Watanabe
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Patent number: 11404705Abstract: A plurality of channel elements provided in a bipolar plate have different widths depending on positions, so that the velocity of flow of the fluid increases from an inlet toward an outlet of the bipolar plate and water generated when the fluid is condensed on the downstream side of the bipolar plate can be discharged more smoothly. In addition, a plurality of channel elements have different contact angles depending on positions of the plurality of channel elements so that the contact angle increases toward the outlet side of the bipolar plate. Thus, the reaction gas can be more concentrated on the surface of a gas diffusion layer. Even if the concentration of the reaction gas is reduced at the outlet side of the bipolar plate, the diffusion of the reaction gas is well performed, so that performance reduction can be prevented.Type: GrantFiled: August 13, 2020Date of Patent: August 2, 2022Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Min Soo Kim, Sung Hoon Choi, Dong Gyun Kang, In Seop Lim
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Patent number: 11387465Abstract: A cathode, a membrane electrode assembly, and a battery, each has excellent durability. The cathode is a cathode of a battery including an electrolyte membrane, the cathode including: a first layer which contains 0.3 mg/cm2 or more and 9.0 mg/cm2 or less of a carbon catalyst; and a second layer which is arranged between the electrolyte membrane and the first layer in the battery, and which contains 0.002 mg/cm2 or more and 0.190 mg/cm2 or less of platinum.Type: GrantFiled: November 16, 2017Date of Patent: July 12, 2022Assignee: NISSHINBO HOLDINGS INC.Inventors: Takeaki Kishimoto, Yoshikazu Kobayashi, Chihiro Fujii, Siyu Ye, Dustin William H Banham
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Patent number: 11387461Abstract: A positive electrode includes at least a positive electrode current collector, a conductive material, and a positive electrode active material. The positive electrode active material is disposed on a surface of the positive electrode current collector. The positive electrode current collector includes an aluminum foil and an aluminum oxide hydrate film. The aluminum oxide hydrate film covers a surface of the aluminum foil. The aluminum oxide hydrate film has a thickness not smaller than 10 nm and not greater than 500 nm. The aluminum oxide hydrate film has a porosity not lower than 10% and not higher than 50%. At least part of the conductive material is disposed within pores in the aluminum oxide hydrate film.Type: GrantFiled: March 5, 2019Date of Patent: July 12, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Torita, Akihiro Ochiai, Yusuke Fukumoto, Harunari Shimamura, Takuya Asari
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Patent number: 11380909Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.Type: GrantFiled: December 21, 2020Date of Patent: July 5, 2022Inventors: Yohei Sano, Shigeru Watanabe, Akihito Giga, Suguru Ohmori