Patents by Inventor Manabu Takijiri

Manabu Takijiri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210057710
    Abstract: A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present disclosure is provided with: an electrode body (14) which is obtained by winding a positive electrode (30) and a negative electrode (40), with a separator (50) being interposed therebetween; a nonaqueous electrolyte; and a battery case (15) which is formed of a metal and contains the electrode body (14) and the nonaqueous electrolyte. The negative electrode (40) comprises a negative electrode collector (41) and a negative electrode active material layer (42) that contains graphite particles as a negative electrode active material; the outer circumferential surface of the electrode body (14) is provided with an exposure part (43) from which the negative electrode collector (41) is exposed so as to be in contact with the inner circumferential surface of the battery case (15); and the graphite particles have a compressive strength of 15 MPa or more.
    Type: Application
    Filed: February 19, 2019
    Publication date: February 25, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masanobu Takeuchi, Manabu Takijiri, Yoshio Kato, Masahiro Shiraga
  • Patent number: 10811729
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode including a negative electrode mix layer, and a nonaqueous electrolyte containing a nonaqueous solvent. A surface of the negative electrode mix layer is provided with grooves. The nonaqueous electrolyte contains 10 volume percent or more of a fluorinated solvent with respect to the volume of the nonaqueous solvent and has a viscosity (25° C.) of 3.50 mPa·s or more as measured with a differential pressure viscometer.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoki Tsuji, Masahiro Shiraga, Manabu Takijiri, Takayuki Shirane, Hiroyuki Fujimoto
  • Publication number: 20200243856
    Abstract: A non-aqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material containing a composite oxide particle that includes Ni, Co and Li, and also includes at least one among Mn and Al, and the ratio of Ni to the total number of moles of metal elements excluding Li is 50 mol % or more. In the composite oxide particle, the ratio (A/B) of a BET specific surface area (A) to a theoretical specific surface area (B) determined by the following formula is more than 1.0 and less than 3.3. Theoretical specific surface area (B) (m2/g)=6/(true density (g/cm3)×volume average particle diameter (?m)).
    Type: Application
    Filed: July 19, 2018
    Publication date: July 30, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuta Kuroda, Manabu Takijiri
  • Publication number: 20200168907
    Abstract: This nonaqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode and a nonaqueous electrolyte. The nonaqueous electrolyte comprises a nonaqueous solvent that contains a fluorine-containing cyclic carbonate; the positive electrode comprises a positive electrode active material that contains composite oxide particles which contain Ni, Co and Li, while containing at least one of Mn and Al, and wherein the proportion of Ni relative to the total number of moles of the metal elements excluding Li is 50% by mole or more; and the composite oxide particles are in a non-aggregated state, while having a compressive strength of 250 MPa or more.
    Type: Application
    Filed: July 19, 2018
    Publication date: May 28, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Manabu Takijiri, Yuta Kuroda
  • Patent number: 10511021
    Abstract: A nonaqueous electrolyte secondary battery has both high capacity and high regeneration. A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a Ni-containing lithium transition metal oxide having a layered structure and also contains a tungsten compound and/or a molybdenum compound. The percentage of Ni is greater than 90 mole percent with respect to the molar amount of the lithium transition metal oxide. The amount of the compound is 0.1 mole percent to 1.5 mole percent with respect to the molar amount of the lithium transition metal oxide in terms of tungsten element and/or molybdenum element.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: December 17, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takaaki Oka, Kaoru Nagata, Manabu Takijiri, Takeshi Ogasawara
  • Publication number: 20190221824
    Abstract: This non-aqueous electrolyte secondary battery has an electrode body comprising a positive electrode and a negative electrode which are wound around while sandwiching a separator therebetween, and housed in a cylindrical housing member. The positive electrode has a positive electrode collector and a positive electrode active substance layer extending above the positive electrode collector. The negative electrode has a negative electrode collector, a negative electrode active substance layer extending above the negative electrode collector, and a negative electrode lead connected to the negative electrode collector. The negative electrode lead is disposed more toward the wound core of the electrode body than the end portion of the negative electrode active substance layer and the end portion of the positive electrode active substance layer.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomoki Tsuji, Manabu Takijiri, Yoshinori Sakai, Masanobu Takeuchi
  • Patent number: 10193183
    Abstract: The invention provides nonaqueous electrolyte secondary batteries having excellent output characteristics during large-current charging and discharging. A nonaqueous electrolyte secondary battery according to one aspect of the invention includes a positive electrode including a lithium transition metal oxide, a negative electrode including a negative electrode active material capable of storing and releasing lithium ions, and a nonaqueous electrolyte, the negative electrode active material including a carbon material as a main component, the negative electrode including a tungsten compound and/or a molybdenum compound. The tungsten compound and/or the molybdenum compound is preferably attached to the surface of the carbon material.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 29, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Sho Urata, Kaoru Nagata, Manabu Takijiri, Rie Matsuoka
  • Publication number: 20190027752
    Abstract: This non-aqueous electrolyte secondary battery is equipped with a positive electrode comprising: a positive electrode active substance containing a lithium-containing transition metal oxide; and a lithium compound derived from an irreversible substance irreversibly reacting with lithium at a voltage lower than the average operating voltage of the positive electrode active substance.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 24, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryo Kazama, Masanobu Takeuchi, Tomoki Tsuji, Manabu Takijiri
  • Publication number: 20180241087
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode including a negative electrode mix layer, and a nonaqueous electrolyte containing a nonaqueous solvent. A surface of the negative electrode mix layer is provided with grooves. The nonaqueous electrolyte contains 10 volume percent or more of a fluorinated solvent with respect to the volume of the nonaqueous solvent and has a viscosity (25° C.) of 3.50 mPa·s or more as measured with a differential pressure viscometer.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomoki Tsuji, Masahiro Shiraga, Manabu Takijiri, Takayuki Shirane, Hiroyuki Fujimoto
  • Publication number: 20170317380
    Abstract: A non-aqueous electrolyte secondary battery having high input/output characteristics and preferable cycle characteristics is provided. A non-aqueous electrolyte according to one example of an embodiment includes a positive electrode which includes a positive electrode active material containing as a primary component, a lithium transition metal oxide having a layered structure, the content of Co of which is with respect to the total mass of metal elements except Li is 1 to 20 percent by mole; a negative electrode which includes a negative electrode active material containing Si; and a non-aqueous electrolyte which includes a fluorinated chain carboxylic acid ester.
    Type: Application
    Filed: December 17, 2015
    Publication date: November 2, 2017
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Manabu Takijiri, Takanobu Chiga, Masaki Hasegawa
  • Patent number: 9786908
    Abstract: An object is to provide a positive electrode for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery that allow a high output characteristic. Included are a positive electrode collector and a positive electrode mixture layer formed on at least one surface of the positive electrode collector. The positive electrode mixture layer contains particles 3 of lithium nickel cobalt manganese oxide represented by LiNi0.55Co0.2OMn0.25O2, erbium oxyhydroxide 1 fixed on the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, tungsten trioxide 2 adhering to the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, and a binder.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 10, 2017
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Masanobu Takeuchi, Manabu Takijiri, Katsunori Yanagida, Junichi Sugaya, Takeshi Ogasawara
  • Patent number: 9640800
    Abstract: Provided is a nonaqueous electrolyte secondary battery with improved high-rate discharge characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode including a metal foil and a positive electrode active material layer formed thereon; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte containing a nonaqueous solvent and a solute dissolved therein. The metal foil of the positive electrode is an aluminum foil having an at least partially roughened surface adjacent to the positive electrode active material layer. The positive electrode includes a conductive layer containing a conductor and a binder in recesses in the at least partially roughened surface of the aluminum foil. The positive electrode active material layer is disposed on the conductive layer and contains a positive electrode active material, the conductor, and the binder.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: May 2, 2017
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Manabu Takijiri, Masanobu Takeuchi, Yoshinori Kida
  • Publication number: 20170084916
    Abstract: A nonaqueous electrolyte secondary battery has both high capacity and high regeneration. A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a Ni-containing lithium transition metal oxide having a layered structure and also contains a tungsten compound and/or a molybdenum compound. The percentage of Ni is greater than 90 mole percent with respect to the molar amount of the lithium transition metal oxide. The amount of the compound is 0.1 mole percent to 1.5 mole percent with respect to the molar amount of the lithium transition metal oxide in terms of tungsten element and/or molybdenum element.
    Type: Application
    Filed: March 10, 2015
    Publication date: March 23, 2017
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Takaaki Oka, Kaoru Nagata, Manabu Takijiri, Takeshi Ogasawara
  • Publication number: 20170062871
    Abstract: The invention provides nonaqueous electrolyte secondary batteries having excellent output characteristics during large-current charging and discharging. A nonaqueous electrolyte secondary battery according to one aspect of the invention includes a positive electrode including a lithium transition metal oxide, a negative electrode including a negative electrode active material capable of storing and releasing lithium ions, and a nonaqueous electrolyte, the negative electrode active material including a carbon material as a main component, the negative electrode including a tungsten compound and/or a molybdenum compound. The tungsten compound and/or the molybdenum compound is preferably attached to the surface of the carbon material.
    Type: Application
    Filed: February 13, 2015
    Publication date: March 2, 2017
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Sho Urata, Kaoru Nagata, Manabu Takijiri, Rie Matsuoka
  • Publication number: 20160204414
    Abstract: Provided are a positive electrode active material, capable of achieving both high capacity and high output, for nonaqueous electrolyte secondary batteries and a nonaqueous electrolyte secondary battery using the same. A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention contains a lithium transition metal oxide which has a layered structure and which contains Ni as a transition metal. The percentage of Ni element with respect to the total molar amount of metal elements, other than lithium, in the lithium transition metal oxide is 89 mole percent or more. A zirconium compound is present on the surface of the lithium transition metal oxide.
    Type: Application
    Filed: September 18, 2014
    Publication date: July 14, 2016
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Manabu Takijiri, Katsunori Yanagida, Takeshi Ogasawara, Kaoru Nagata
  • Publication number: 20160006029
    Abstract: A high-capacity non-aqueous electrolyte secondary battery capable of maintaining good cycle characteristics even in the case where large current discharge is repeated is provided. A positive electrode active material particle (32) includes a base particle (33) produced by agglomeration of primary particles (33a) made from lithium transition metal oxide containing tungsten and a rare earth compound particles (34) attached to the surface of the base particle (33). Preferably, the rare earth compound is attached to the interface at which the primary particles are in contact with each other or the vicinity of the interface.
    Type: Application
    Filed: March 18, 2014
    Publication date: January 7, 2016
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Junichi Sugaya, Manabu Takijiri, Takeshi Ogasawara, Katsunori Yanagida
  • Publication number: 20150221938
    Abstract: In a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode, and a nonaqueous electrolyte, the positive electrode active material contains a lithium transition metal oxide having a surface to which a rare earth compound is adhered, and the nonaqueous electrolyte contains a lithium salt in which an oxalate complex functions as an anion.
    Type: Application
    Filed: September 5, 2013
    Publication date: August 6, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Takashi Yamamoto, Masanori Sugimori, Manabu Takijiri, Junichi Sugaya, Masanobu Takeuchi, Katsunori Yanagida, Takeshi Ogasawara
  • Publication number: 20150221942
    Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes a lithium transition metal oxide containing nickel and zirconium and including secondary particles, each of which is composed of an aggregate of primary particles, and a rare earth compound deposited on and/or near interfaces between the primary particles.
    Type: Application
    Filed: August 28, 2013
    Publication date: August 6, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Junichi Sugaya, Manabu Takijiri, Masanobu Takeuchi, Katsunori Yanagida, Takeshi Ogasawara
  • Publication number: 20150207142
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes a positive electrode (1) containing a positive electrode active material that contains a lithium transition metal oxide having a surface to which a compound of a rare-earth element is adhered, a negative electrode (2) containing a negative electrode active material, and a nonaqueous electrolyte to which a lithium salt having a P—O bond and a P—F bond in its molecule and/or a lithium salt having a B—O bond and a B—F bond in its molecule is added.
    Type: Application
    Filed: August 20, 2013
    Publication date: July 23, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Manabu Takijiri, Junichi Sugaya, Masanobu Takeuchi, Katsunori Yanagida, Takeshi Ogasawara
  • Publication number: 20150056512
    Abstract: An object is to provide a positive electrode for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery that allow a high output characteristic. Included are a positive electrode collector and a positive electrode mixture layer formed on at least one surface of the positive electrode collector. The positive electrode mixture layer contains particles 3 of lithium nickel cobalt manganese oxide represented by LiNi0.55Co0.20Mn0.25O2, erbium oxyhydroxide 1 fixed on the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, tungsten trioxide 2 adhering to the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, and a binder.
    Type: Application
    Filed: January 31, 2013
    Publication date: February 26, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Masanobu Takeuchi, Manabu Takijiri, Katsunori Yanagida, Junichi Sugaya, Takeshi Ogasawara