Patents Assigned to Furukawa Battery Co., Ltd.
  • Publication number: 20240113338
    Abstract: A lithium ion secondary battery includes a negative electrode including a mixture layer which contains a niobium titanium oxide as a negative electrode active material, and non-aqueous electrolyte containing lithium alkoxysulfonate represented by RSOOO?Li+ (where R is at least one selected from the group consisting of OCH3 and OC2H5).
    Type: Application
    Filed: November 16, 2023
    Publication date: April 4, 2024
    Applicants: The Furukawa Battery Co., Ltd., YAMAGUCHI UNIVERSITY
    Inventors: Yosuke Masuda, Miyu Nemoto, Hiroatsu Kondou, Koji Abe, Yanko Marinov Todorov
  • Publication number: 20230275237
    Abstract: A liquid lead storage battery includes a grid-like substrate of a positive electrode current collector that includes a frame bone forming four sides of a rectangular shape. Intermediate bones are connected to and present inward of the frame bone. At least some vertical intermediate bones present in a range between the center between a pair of vertical frame bones and the first vertical frame bone, which is the vertical frame bone on the side where a lug is absent, are first vertical intermediate bones extending from the lower to the upper frame bone sides while obliquely expanding from each other, and directly reach an upper frame bone. Angles formed by the first vertical intermediate bones and the upper frame bone on the first vertical frame bone side are less than 90°. Connection points of the first vertical intermediate bones to the upper frame bone are present only in this range.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 31, 2023
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Atsushi Sato, Shinya Suge, Hideki Hagihara
  • Publication number: 20230016319
    Abstract: A positive electrode for a lithium ion secondary battery includes a positive electrode current collector and a positive electrode mixture layer formed on one surface or both surfaces of the positive electrode current collector, wherein the positive electrode mixture layer contains a positive electrode active material, and conductive agent material, and a binder, the positive electrode active material is a mixture of a first positive electrode active material which is a lithium composite oxide with a layered structure and a second positive electrode material which is a polyanionic compound with an olivine type structure.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 19, 2023
    Applicant: The Furukawa Battery Co., Ltd.
    Inventor: Naoki Takeguchi
  • Publication number: 20220373611
    Abstract: A deterioration determination device for a storage battery system includes: a current sensor configured to, at a time of stopping charging or stopping discharging of storage batteries, measure circulation current generated among storage battery arrays in each of storage battery array blocks; a measurement control unit configured to collect a value of the circulation current measured by the current sensor; and a storage battery state determining unit configured to, from the collected value of the circulation current, determine whether or not there is deterioration of the storage batteries in the storage battery array blocks.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 24, 2022
    Applicants: FURUKAWA ELECTRIC CO., LTD., THE FURUKAWA BATTERY CO., LTD.
    Inventors: Hideto NAKAMURA, Akira TANAKA, Masanobu ARAGAKI, Hideaki YOSHIDA, Wataru TEZUKA, Akihiro SATO
  • Publication number: 20220223840
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and non-aqueous electrolyte, wherein the positive electrode includes a current collector and a positive electrode mixture layer formed on at least one surface of the current collector, the first conductive material has particle diameter distribution D90 between 3 and 20 ?m, the first conductive material has a crystallite diameter between 1 and 10 nm, the crystallite diameter being obtained by a Scherrer's equation based on a peak intensity attributed to (102) face in which 2? exists within a range of 50 to 52° in an X-ray diffraction pattern derived by means of an X-ray diffraction measurement using Cu-K?, the second conductive material has an average particle diameter size between 10 and 100 nm, and density of the positive electrode mixture layer is between 2.3 and 2.9 g/cm3.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Applicant: The Furukawa Battery Co., Ltd.
    Inventor: Yuta Kobayashi
  • Patent number: 11309611
    Abstract: A battery mount from which a battery device is attachable and detachable results in a configuration that enables easy attachment and detachment of a battery having various shapes. The battery mount includes: connection terminals configured to fit to external terminals of the battery and having a shape along which the external terminals are slidable in at least one direction; and a lever rotatable about a fulcrum and located at a side at which the connection terminals are located when seen from the battery in a state where the external terminals are fitted to the connection terminals. The external terminals are configured to be elastically deformable to fit to the connection terminals by sandwiching the connection terminals therein.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 19, 2022
    Assignees: THE FURUKAWA BATTERY CO., LTD., NILEWORKS INC.
    Inventors: Yuta Onishi, Akino Isa, Hitoshi Watanabe, Masanori Yamakata, Hiroshi Yanagishita, Chihiro Wake
  • Patent number: 11201356
    Abstract: A nonaqueous electrolyte secondary battery includes a rectangular electrode group, a nonaqueous electrolyte, a band-shaped positive electrode collector lead, a band-shaped negative electrode collector lead, a flat plate-shaped positive terminal, a flat plate-shaped negative terminal and an outer body.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: December 14, 2021
    Assignee: The Furukawa Battery Co., Ltd.
    Inventors: Nozomi Matsuhashi, Norihiro Kon
  • Patent number: 11158861
    Abstract: A positive electrode grid body for lead-acid battery includes frame rib including first and second lateral frame ribs and first and second longitudinal frame ribs, an inner rib including a plurality of lateral and longitudinal crosspieces, a plurality of opening portions, and a positive electrode current collection lug connected to the first lateral frame rib. In a region having a length of at least one opening portion or more in the lateral direction of the lateral crosspieces from the first longitudinal frame rib, a cross-sectional area of the plurality of lateral crosspieces located on at least the first lateral frame rib side becomes larger from the second longitudinal frame rib side toward a portion connected to the first longitudinal frame rib.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 26, 2021
    Assignee: The Furukawa Battery Co., Ltd.
    Inventors: Yutaro Kawaguchi, Yusuke Ogino, Atsushi Sato, Shinya Suge, Katsuya Nukui, Akihiro Nishimura, Koshin Takemoto, Ryo Tainaka, Masashi Matsushita, Hideki Hagihara, Masaki Shimotsuya, Jun Furukawa
  • Publication number: 20210218066
    Abstract: A nonaqueous electrolyte secondary battery includes a rectangular electrode group, a nonaqueous electrolyte, a band-shaped positive electrode collector lead, a band-shaped negative electrode collector lead, a flat plate-shaped positive terminal, a flat plate-shaped negative terminal and an outer body.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Nozomi Matsuhashi, Norihiro Kon
  • Publication number: 20200227758
    Abstract: A positive electrode grid body for lead-acid battery includes frame rib including first and second lateral frame ribs and first and second longitudinal frame ribs, an inner rib including a plurality of lateral and longitudinal crosspieces, a plurality of opening portions, and a positive electrode current collection lug connected to the first lateral frame rib. In a region having a length of at least one opening portion or more in the lateral direction of the lateral crosspieces from the first longitudinal frame rib, a cross-sectional area of the plurality of lateral crosspieces located on at least the first lateral frame rib side becomes larger from the second longitudinal frame rib side toward a portion connected to the first longitudinal frame rib.
    Type: Application
    Filed: March 26, 2020
    Publication date: July 16, 2020
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Yutaro KAWAGUCHI, Yusuke OGINO, Atsushi SATO, Shinya SUGE, Katsuya NUKUI, Akihiro NISHIMURA, Koshin TAKEMOTO, Ryo TAINAKA, Masashi MATSUSHITA, Hideki HAGIHARA, Masaki SHIMOTSUYA, Jun FURUKAWA
  • Patent number: 9812703
    Abstract: The present invention generally relates to electrodes for use in lead-acid battery systems, batteries and electrical storage devices thereof, and methods for producing the electrodes, batteries and electrical storage devices. In particular, the electrodes comprise active battery material for a lead-acid storage battery, wherein the surface of the electrode is provided with a coating layer comprising a carbon mixture containing composite carbon particles, wherein each of the composite carbon particles comprises a particle of a first capacitor carbon material combined with particles of a second electrically conductive carbon material. The electrical storage devices and batteries comprising the electrodes are, for example, particularly suitable for use in hybrid electric vehicles requiring a repeated rapid charge/discharge operation in the PSOC, idling-stop system vehicles, and in industrial applications such as wind power generation, and photovoltaic power generation.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 7, 2017
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, THE FURUKAWA BATTERY CO., LTD
    Inventors: Jun Furukawa, Daisuke Monma, Lan Trieu Lam, Rosalie Louey, Nigel Peter Haigh
  • Patent number: 9666860
    Abstract: A lead-acid battery comprising: —at least one negative electrode comprising lead-based battery electrode material and at least one region of capacitor material overlying the lead-based battery electrode material, each electrode being in electrical connection to an outer terminal of the battery, and —at least one positive lead-dioxide based battery electrode, each positive electrode being in electrical connection to a second outer terminal of the battery, —separator interleaving the facing electrodes; —electrolyte filling at least the space of the electrodes and separators wherein the capacitor material overlying the lead-based battery electrode material comprises 20-65% by weight of a high electrical conductivity carbonaceous material, 30-70% of a high specific surface area carbonaceous material, at least 0.1% lead and binder.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: May 30, 2017
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, THE FURUKAWA BATTERY CO., LTD.
    Inventors: Lan Trieu Lam, Jun Furukawa, Toshimichi Takada, Daisuke Monma, Tetsuya Kanou
  • Patent number: 9524831
    Abstract: There is provided a method for producing a hybrid negative plate for a lead-acid storage battery which is improved in the production working efficiency and the productivity and enhances the quick charge and discharge characteristics and the discharge characteristics at a low temperature under PSOC of a lead-acid storage battery. A carbon mixture sheet produced by such a way that a carbon mixture prepared by mixing two types of carbon materials consisting of a first carbon material having electroconductivity and a second carbon material having capacitor capacitance and/or pseudocapacitor capacitance, and at least a binder, is adhered by pressure to the surface of a negative plate in a wet state, so that a hybrid negative plate is produced. The lead-acid storage battery provided with the hybrid negative plate is improved in the discharge characteristics.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: December 20, 2016
    Assignees: THE FURUKAWA BATTERY CO., LTD., COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Jun Furukawa, Daisuke Momma, Toshimichi Takada, Yuichi Akasaka, Satoshi Shibata, Lan Trieu Lam, Rosalie Louey, Nigel Peter Haigh
  • Patent number: 9508493
    Abstract: [Problem] To provide a hybrid negative plate for a lead-acid storage battery, that inhibits decrease in hydrogen gas evolution potential and improves rapid discharge cycle characteristics in PSOC. [Means for Resolution] In a hybrid negative plate for a lead-acid storage battery, comprising a negative electrode active material-filled plate having formed on the surface thereof a coating layer of a carbon mixture comprising a carbon material for ensuring conductivity, activated carbon for ensuring capacitor capacity and/or pseudocapacitor capacity, and at least a binder, activated carbon modified with a functional group is used as the activated carbon. Preferably, activated carbon modified with an acidic surface functional group is used.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: November 29, 2016
    Assignees: THE FURUKAWA BATTERY CO., LTD., COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Furukawa Jun, Daisuke Momma, Yosuke Masuda, Akira Dobashi, Lan Trieu Lam, Rosalie Louey, Nigel Peter Haigh
  • Patent number: 9450232
    Abstract: To provide a method for producing a lead-acid battery negative plate for use in a storage battery which provides improved deteriorated rapid discharge characteristics by preventing an interfacial separation between a negative active material-filled plate and a carbon mixture-coated layer, which is a problem in a negative plate having such a configuration that the carbon mixture coated layer is formed on the surface of the negative active material-filled plate. A coating layer of a carbon mixture is formed at least in a part of a surface of a negative active material-filled plate. The carbon mixture is prepared by mixing two kinds of carbon materials consisting of a first carbon material having conductive properties and a second carbon material having capacitive capacitance and/or pseudo capacitive capacitance and a binding agent. Subsequently, a sufficient amount of lead ions are generated enough to be moved from the negative active material-filled plate into the carbon mixture-coated layer.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: September 20, 2016
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, THE FURUKAWA BATTERY CO., LTD.
    Inventors: Jun Furukawa, Daisuke Momma, Toshimichi Takada, Trieu Lan Lam, Rosalie Louey, Peter Nigel Haigh
  • Patent number: 9337488
    Abstract: A method of manufacturing a multicomponent lithium phosphate compound particle with an olivine structure of formula LiyM11-ZM2ZPO4, M1 is Fe, Mn or Co; Y satisfies 0.9?Y?1.2; M2 is Mn, Co, Mg, Ti or Al; and Z satisfies 0<Z?0.1, in which the M2 concentration is continuously lowered from a surface of the particle to a core portion of the particle. The method includes mixing a lithium M1 phosphate compound with an olivine structure of formula LiXM1PO4, M1 is Fe, Mn or Co, and X satisfies 0.9?X?1.2, and a precursor of a lithium M2 phosphate compound with an olivine structure of formula LiXM2PO4, M2 is Mn, Co, Mg, Ti or Al, and X satisfies 0.9?X?1.2, to form a mixture; and subjecting the mixture to heating in an inert atmosphere or a vacuum.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 10, 2016
    Assignees: THE FURUKAWA BATTERY CO., LTD., TOKYO METROPOLITAN UNIVERSITY, SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Hidetoshi Abe, Tomonori Suzuki, Takashi Eguro, Kiyoshi Kanamura, Mitsumasa Saito
  • Patent number: 9203116
    Abstract: An energy storage device comprising at least one negative electrode, wherein each negative electrode is individually selected from (i) an electrode comprising negative battery electrode material; (ii) an electrode comprising capacitor electrode material; (iii) a mixed electrode comprising either—a mixture of battery and capacitor electrode material or—a region of battery electrode material and a region of capacitor electrode material, or—a combination thereof, and wherein the energy storage device either comprises at least one electrode of type (iii), or comprises at least one electrode of each of types (i) and (ii),—at least one positive electrode, wherein the positive electrode comprises positive battery electrode material and a charging ability-increasing additive, such as one or a mixture of: (a) carbon nanomaterial, vapor grown carbon fiber, fullerene, or a mixture thereof, and (b) tin dioxide conductive materials.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: December 1, 2015
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, FURUKAWA BATTERY CO., LTD.
    Inventors: Lan Trieu Lam, Jun Furukawa
  • Patent number: 9136535
    Abstract: An object of the present invention is to provide a cathode active material which contains small-particle sized and low-crystalline lithium transition metal silicate and which undergoes charge-discharge reaction at room temperature. The cathode active material for a non-aqueous electrolyte secondary battery is characterized by containing a lithium transition metal silicate and exhibits diffraction peaks having half widths of 0.175 to 0.6°, the peaks observed through powder X-ray diffractometry within a 2? range of 5 to 50°.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 15, 2015
    Assignees: FURUKAWA ELECTRIC CO., LTD., THE FURUKAWA BATTERY CO., LTD.
    Inventors: Michio Ohkubo, Michihiro Shimada, Naoki Uno, Yosuke Hirayama, Toshio Tani, Hidetoshi Abe, Miyu Aita
  • Patent number: 9093713
    Abstract: The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance and growth resistance, including two-step heat treatment of a Pb—Ca—Sn alloy grid containing 0.06% by mass or less of calcium, the first heat treatment being conducted at a temperature of 40° C. to 110° C., the second heat treatment being conducted at a temperature of 90° C. to 140° C., and the first heat treatment being conducted at a lower temperature than the second heat treatment.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 28, 2015
    Assignee: THE FURUKAWA BATTERY CO., LTD.
    Inventors: Jun Furukawa, Kazuo Matsushita
  • Publication number: 20140353555
    Abstract: A method of manufacturing a multicomponent lithium phosphate compound particle with an olivine structure of formula LiyM11-ZM2ZPO4, M1 is Fe, Mn or Co; Y satisfies 0.9?Y?1.2; M2 is Mn, Co, Mg, Ti or Al; and Z satisfies 0<Z?0.1, in which the M2 concentration is continuously lowered from a surface of the particle to a core portion of the particle. The method includes mixing a lithium M1 phosphate compound with an olivine structure of formula LiXM1PO4, M1 is Fe, Mn or Co, and X satisfies 0.9?X?1.2, and a precursor of a lithium M2 phosphate compound with an olivine structure of formula LiXM2PO4, M2 is Mn, Co, Mg, Ti or Al, and X satisfies 0.9?X?1.2, to form a mixture; and subjecting the mixture to heating in an inert atmosphere or a vacuum.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicants: THE FURUKAWA BATTERY CO., LTD., SUMITOMO OSAKA CEMENT CO., LTD., TOKYO METROPOLITAN UNIVERSITY
    Inventors: Hidetoshi ABE, Tomonori SUZUKI, Takashi EGURO, Kiyoshi KANAMURA, Mitsumasa SAITO