Patents by Inventor Osamu Shimamura
Osamu Shimamura 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).
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Patent number: 8785041Abstract: An electrode includes a collector formed with a conductive resin layer and an active material layer formed on the conductive resin layer. The active material layer comprises an active material and a binder polymer, and the conductive resin layer is bonded by thermal fusion bonding to the active material layer.Type: GrantFiled: December 11, 2009Date of Patent: July 22, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Shiho Inoue, Hideaki Horie, Kenji Hosaka, Osamu Shimamura, Shigeo Ibuka
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Patent number: 8753767Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: GrantFiled: July 21, 2003Date of Patent: June 17, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Osamu Shimamura, Hiroshi Sugawara, Hideaki Horie, Tomaru Ogawa, Takaaki Abe, Takanori Ito
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Patent number: 8734986Abstract: A battery including an electrode and electrode terminal, the electrode comprising a multilayered collector assembly having a multilayered portion that includes an insulation layer and two electrically conductive layers disposed on opposite sides of the insulation layer, and a conductive portion made of an electrically conductive material, connected to the two conductive layers and extending therefrom more toward a side end of the electrode than a side end of the insulation layer so as to be electrically connected to the electrode terminal, and a pair of active material layers disposed on opposite sides of the multilayered portion.Type: GrantFiled: July 1, 2008Date of Patent: May 27, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Yuichiro Yamamura, Hideaki Horie, Osamu Shimamura, Yasuhiro Yanagihara, Kazuki Miyatake
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Publication number: 20140113178Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Osamu SHIMAMURA, Hiroshi SUGAWARA, Hideaki HORIE, Tomaru OGAWA, Takaaki ABE, Takanori ITO
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Patent number: 8663832Abstract: Disclosed is a cell with a power-generating element and an outer package. The power-generating element includes a unit cell layer including a first electrode, a second electrode and an electrolyte layer disposed between the first and second electrodes. In the first electrode, a first collector is provided with one of a positive electrode active material layer and a negative electrode active material layer. In the second electrode, a second collector is provided with the other one of the positive and negative electrode active material layers. The first and second collectors have thicknesses such that when a conductor from outside penetrates at least two cells and a short circuit is formed between two cells via the conductor, shorted portions of the first and second collectors are fused by the heat generated by the current before the temperature of the cells reaches a predetermined value so that the short circuit is blocked.Type: GrantFiled: August 12, 2008Date of Patent: March 4, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Takaaki Abe, Kazuki Miyatake, Osamu Shimamura, Masakazu Kobayashi, Hideaki Horie, Kyoichi Watanabe, Yoshio Shimoida
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Patent number: 8663833Abstract: Embodiments of a battery taught herein are directed to preventing a displacement between bipolar battery stacks or between a bipolar battery stack and an electrode tab. A bonding portion is formed at a part of a contact surface where a collector positioned at both ends in a stacking direction of a bipolar battery stack is bonded to the electrode tabs. The electrode tab and the collector are fixed by such a bonding portion. Further, the bonding portion is formed at a part of a contact surface where adjacent bipolar battery stacks are bonded to each other. Bipolar batteries positioned at upper and lower portions in the stacking direction are fixed by such a bonding portion.Type: GrantFiled: October 31, 2008Date of Patent: March 4, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Kenji Hosaka, Hideaki Horie, Yamamura Yuichiro, Yasuhiro Yanagihara, Osamu Shimamura, Yoshio Shimoida
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Patent number: 8652220Abstract: A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.Type: GrantFiled: March 11, 2013Date of Patent: February 18, 2014Assignee: Nissan Motor Co., Inc.Inventors: Kyoichi Watanabe, Hideaki Horie, Takanori Ito, Takaaki Abe, Osamu Shimamura, Takamitsu Saitou, Hiroshi Sugawara
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Publication number: 20130248106Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.Type: ApplicationFiled: May 10, 2013Publication date: September 26, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
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Publication number: 20130192058Abstract: A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.Type: ApplicationFiled: March 11, 2013Publication date: August 1, 2013Applicant: Nissan Motor Co., Ltd.Inventors: Kyoichi WATANABE, Hideaki HORIE, Takanori ITO, Takaaki ABE, Osamu SHIMAMURA, Takamitsu SAITOU, Hiroshi SUGAWARA
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Patent number: 8450011Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.Type: GrantFiled: June 5, 2008Date of Patent: May 28, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
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Publication number: 20130129914Abstract: In a nonaqueous electrolyte cell-oriented electrode (10), an electrode active material layer (12) formed on a collector (1) has a density gradient developed with a gradient of a varied concentration of a solid along a thickness from a surface of the electrode active material layer (12) toward the collector (1), and in a gel electrolyte cell-oriented electrode (30), an electrode active material layer (32) formed on a collector (1) has a density gradient developed with (a) gradient(s) of (a) varied concentration(s) of one or both of an electrolyte salt and a film forming material along a thickness from a surface of the electrode active material layer (32) toward the collector (1).Type: ApplicationFiled: January 17, 2013Publication date: May 23, 2013Inventors: Mori NAGAYAMA, Takamitsu SAITO, Osamu SHIMAMURA
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Patent number: 8445139Abstract: The disclosure relates to bipolar cells including electrodes surrounding a collector. Embodiments of the bipolar cells include a collector containing a high-polymer material. The disclosure also relates to bipolar electrode batteries containing bipolar cells including a collector body containing electrically conductive high-polymer or electrically conductive particles distributed in a high-polymer. By adding such high molecular weight polymer material to the collector, the weight of the collector may be reduced and the output power density per weight of the battery may be improved. The disclosure further relates to methods of forming collecting bodies and electrodes for bipolar cells using an inkjet printing method. Bipolar cells according to the present invention may be used to fabricate batteries such as lithium ion batteries, which may be connected to form battery modules used, for example, to provide electrical power for a motor vehicle.Type: GrantFiled: December 7, 2005Date of Patent: May 21, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Kenji Hosaka, Osamu Shimamura, Hideaki Horie, Takamitsu Saito, Takuya Kinoshita, Takaaki Abe, Naoto Kiriu
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Patent number: 8426060Abstract: A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a positive tab connected to the positive electrode plates through a plurality of positive leads; a negative tab connected to the negative electrode plates through a plurality of negative leads; and a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte. According to the laminate cell, the heat capacity of a portion of the positive tab, onto which a plurality of the positive leads are joined, and the heat capacity of a portion of the negative tab, onto which a plurality of the negative leads are joined, are made larger than that of other portions of the positive tab and the negative tab.Type: GrantFiled: June 28, 2010Date of Patent: April 23, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Yasunari Hisamitsu, Takaaki Abe, Takanori Ito, Osamu Shimamura, Takamitsu Saito, Hideaki Horie, Hiroshi Sugawara
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Patent number: 8420251Abstract: A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.Type: GrantFiled: February 5, 2003Date of Patent: April 16, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Kyoichi Watanabe, Hideaki Horie, Takanori Ito, Takaaki Abe, Osamu Shimamura, Takamitsu Saitou, Hiroshi Sugawara
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Patent number: 8415049Abstract: The present invention provides a bipolar battery made by using a polymer gel electrolyte or a liquid electrolyte in an electrolyte layer, which is highly reliable and prevents liquid junction (short circuit) caused by leak out of an electrolyte solution from the electrolyte part. The present invention provides a bipolar battery laminated, in series, with a plurality pieces of bipolar electrodes which is formed with a positive electrode on one surface of a collector, and a negative electrode on the other surface, so as to sandwich an electrolyte layer, characterized by being provided with a separator which retains the electrolyte later, and a seal resin which is formed and arranged at the outer circumference part of a part of the separator where the electrolyte is retained.Type: GrantFiled: September 22, 2011Date of Patent: April 9, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Osamu Shimamura, Kenji Hosaka, Kyoichi Watanabe, Takaaki Abe, Takuya Kinoshita, Hideaki Horie, Hajime Sato, Ryouichi Senbokuya
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Patent number: 8410372Abstract: A wiring board to be inserted between collector foils of each unit cell in a stacked battery includes a comb-shaped insulating substrate and a wiring layer. The insulating substrate has a plurality of teeth and a rod, and the wiring layer is formed on the insulating substrate and includes a plurality of lead wires individually extending from a distal end of each of the plurality of teeth to an end of the rod to deliver a current of a potential across a conductive member being in contact with the distal ends of the teeth to the end of the rod.Type: GrantFiled: November 21, 2007Date of Patent: April 2, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Takuya Kinoshita, Kenji Hosaka, Hajime Satou, Osamu Shimamura
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Patent number: 8329337Abstract: An electrode and method for preparing the same in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material and the first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The resulting electrode is suitable for use in a battery.Type: GrantFiled: February 28, 2011Date of Patent: December 11, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Takamitsu Saito, Takuya Kinoshita, Hideaki Horie, Kyouichi Watanabe, Osamu Shimamura
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Patent number: 8151914Abstract: In a vehicle drive system including a motor and a secondary battery, the motor and secondary battery are integrated to provide a drive system having good mountability. In a gap between a cylindrical outer housing (116) and a rotor (112), a layered cylindrical secondary battery is provided within the outer housing. A cylindrical cooling member (180) is further arranged between the rotor and secondary battery.Type: GrantFiled: November 1, 2006Date of Patent: April 10, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Hideaki Horie, Osamu Shimamura, Takamitsu Saito, Takaaki Abe
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Patent number: 8124276Abstract: A bipolar battery includes: a bipolar electrode composed, by forming a positive electrode active material layer 12 an one surface of a current collector and forming a negative electrode active material layer 13 on the other surface; and a separator 14 composed to be stacked alternately with the bipolar electrode, wherein, in a single cell layer 15 composed by including the positive electrode active material layer 12, the separator 14 and the negative electrode active material layer 13, which are adjacent to one another, a thickness of the separator 14 is 0.68 times or more to less than 1.0 times a thickness of the positive electrode active material layer 12, and is 0.68 times or more to less than 1.0 times a thickness of the negative electrode active material layer 13.Type: GrantFiled: November 9, 2006Date of Patent: February 28, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Kyoichi Watanabe, Takaaki Abe, Takamitsu Saito, Osamu Shimamura, Kenji Hosaka, Hajime Sato, Hideaki Horie
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Publication number: 20120005882Abstract: The present invention provides a bipolar battery made by using a polymer gel electrolyte or a liquid electrolyte in an electrolyte layer, which is highly reliable and prevents liquid junction (short circuit) caused by leak out of an electrolyte solution from the electrolyte part. The present invention provides a bipolar battery laminated, in series, with a plurality pieces of bipolar electrodes which is formed with a positive electrode on one surface of a collector, and a negative electrode on the other surface, so as to sandwich an electrolyte layer, characterized by being provided with a separator which retains the electrolyte later, and a seal resin which is formed and arranged at the outer circumference part of a part of the separator where the electrolyte is retained.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Inventors: Osamu SHIMAMURA, Kenji HOSAKA, Kyoichi WATANABE, Takaaki ABE, Takuya KINOSHITA, Hideaki HORIE, Hajime SATO, Ryouichi SENBOKUYA