Patents by Inventor Yusuke EMORI
Yusuke EMORI 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: 11837691Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive electrode and the negative electrode. The battery manufacturing method further includes applying pressure to one unit cell or with two or more stacked unit cells from the stacking direction, and charging the one unit cell or the two or more stacked unit cells after applying of the pressure. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.Type: GrantFiled: March 20, 2019Date of Patent: December 5, 2023Assignee: Nissan Motor Co., Ltd.Inventors: Tomohiro Kaburagi, Kazuyuki Yoda, Eiji Minegishi, Noboru Yamauchi, Yusuke Emori, Hideki Ishitani, Masanori Shimada
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Patent number: 11658343Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive and negative electrodes. Heat sealing a seal part that is disposed at an outer peripheral portion of the unit cell. Cooling the outer peripheral portion of the unit cell by using a cooling medium after carrying out the heat sealing of the seal part. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.Type: GrantFiled: March 20, 2019Date of Patent: May 23, 2023Assignee: Nissan Motor Co., Ltd.Inventors: Kazuyuki Yoda, Tomohiro Kaburagi, Eiji Minegishi, Koh Hatanaka, Takuya Sakurai, Masanori Shimada, Yusuke Emori, Yuichiro Yokoyama
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Patent number: 11652241Abstract: A method for manufacturing a battery has a stacking step in which a plurality of unit cells are stacked, the unit cells being such that a positive electrode obtained by a positive electrode active material layer containing an electrolytic solution disposed on a positive electrode current collector, and a negative electrode obtained by a negative electrode active material layer containing an electrolytic solution disposed on a negative electrode current collector with a separator interposed therebetween. In the stacking step, each time one of the unit cells is stacked, the stack of the unit cells are pressed from the stacking direction.Type: GrantFiled: March 26, 2019Date of Patent: May 16, 2023Assignee: Nissan Motor Co., Ltd.Inventors: Tomohiro Kaburagi, Hajime Satou, Kazuyuki Yoda, Shigeo Watanabe, Yusuke Mizuno, Yusuke Emori, Takuya Sakurai
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Patent number: 11522242Abstract: The battery pack has a laminated body in which unit cells are laminated one on another, a cell case having a first opening and containing the laminated body, and a first lid member to tightly close the first opening. The first opening is positioned to face, in connection with a unit cell laminated direction, a first face of the laminated body. The first lid member is configured to, if an internal pressure of the cell case is lower than atmospheric pressure, deform while keeping the tightly closing state, come into contact with the first face of the laminated body, and apply a pressure based on a differential pressure between atmospheric pressure and the internal pressure of the cell case to the contacting face.Type: GrantFiled: March 8, 2017Date of Patent: December 6, 2022Assignee: NISSAN MOTOR CO., LTD.Inventors: Hajime Satou, Yasuhiko Ohsawa, Yuki Kusachi, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Yusuke Emori, Takahiro Imaishi
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Patent number: 11329265Abstract: Provided is a means capable of improving the flatness of a surface of an electrode active material layer in which an electrode active material slurry without assuming addition of a binder.Type: GrantFiled: October 10, 2018Date of Patent: May 10, 2022Assignee: NISSAN MOTOR CO., LTD.Inventors: Kenichi Toyoshima, Tooru Kosemura, Yuichiro Yokoyama, Yusuke Emori
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Patent number: 11075397Abstract: The bipolar secondary battery includes a power generation element including unit power generation elements stacked together and including bipolar electrodes stacked via separators, and current collecting plates arranged at both ends of the power generation element in the stacked direction of the unit power generation elements so as to be in contact with the power generation element, wherein the current collecting plates each include an electrically conductive layer and a resin film, the electrically conductive layer being formed on the resin film having a thermal shrinkage percentage of 2% or greater at a temperature of 150° C., and the separators have a higher thermal shrinkage start temperature than the resin films.Type: GrantFiled: April 26, 2018Date of Patent: July 27, 2021Assignee: NISSAN MOTOR CO., LTD.Inventors: Gentaro Kano, Kazuki Arihara, Atsushi Horai, Eiji Minegishi, Takashi Mori, Yusuke Emori, Yusuke Nakashima
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Publication number: 20210028496Abstract: A method for manufacturing a battery has a stacking step in which a plurality of unit cells are stacked, the unit cells being such that a positive electrode obtained by a positive electrode active material layer containing an electrolytic solution disposed on a positive electrode current collector, and a negative electrode obtained by a negative electrode active material layer containing an electrolytic solution disposed on a negative electrode current collector with a separator interposed therebetween. In the stacking step, each time one of the unit cells is stacked, the stack of the unit cells are pressed from the stacking direction.Type: ApplicationFiled: March 26, 2019Publication date: January 28, 2021Inventors: Tomohiro KABURAGI, Hajime SATOU, Kazuyuki YODA, Shigeo WATANABE, Yusuke MIZUNO, Yusuke EMORI, Takuya SAKURAI
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Publication number: 20210013539Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive electrode and the negative electrode. The battery manufacturing method further includes applying pressure to one unit cell or with two or more stacked unit cells from the stacking direction, and charging the one unit cell or the two or more stacked unit cells after applying of the pressure. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.Type: ApplicationFiled: March 20, 2019Publication date: January 14, 2021Inventors: Tomohiro KABURAGI, Kazuyuki YODA, Eiji MINEGISHI, Noboru YAMAUCHI, Yusuke EMORI, Hideki ISHITANI, Masanori SHIMADA
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Publication number: 20210005934Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive and negative electrodes. Heat sealing a seal part that is disposed at an outer peripheral portion of the unit cell. Cooling the outer peripheral portion of the unit cell by using a cooling medium after carrying out the heat sealing of the seal part. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.Type: ApplicationFiled: March 20, 2019Publication date: January 7, 2021Inventors: Kazuyuki YODA, Tomohiro KABURAGI, Eiji MINEGISHI, Koh HATANAKA, Takuya SAKURAI, Masanori SHIMADA, Yusuke EMORI, Yuichiro YOKOYAMA
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Publication number: 20200388875Abstract: The bipolar secondary battery includes a power generation element including unit power generation elements stacked together and including bipolar electrodes stacked via separators, and current collecting plates arranged at both ends of the power generation element in the stacked direction of the unit power generation elements so as to be in contact with the power generation element, wherein the current collecting plates each include an electrically conductive layer and a resin film, the electrically conductive layer being formed on the resin film having a thermal shrinkage percentage of 2% or greater at a temperature of 150° C., and the separators have a higher thermal shrinkage start temperature than the resin films.Type: ApplicationFiled: April 26, 2018Publication date: December 10, 2020Applicant: NISSAN MOTOR CO., LTD.Inventors: Gentaro KANO, Kazuki ARIHARA, Atsushi HORAI, Eiji MINEGISHI, Takashi MORI, Yusuke EMORI, Yusuke NAKASHIMA
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Publication number: 20200313156Abstract: Provided is a means capable of improving the flatness of a surface of an electrode active material layer in which an electrode active material slurry without assuming addition of a binder.Type: ApplicationFiled: October 10, 2018Publication date: October 1, 2020Applicant: NISSAN MOTOR CO., LTD.Inventors: Kenichi TOYOSHIMA, Tooru KOSEMURA, Yuichiro YOKOYAMA, Yusuke EMORI
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Publication number: 20190355940Abstract: The battery pack has a laminated body in which unit cells are laminated one on another, a cell case having a first opening and containing the laminated body, and a first lid member to tightly close the first opening. The first opening is positioned to face, in connection with a unit cell laminated direction, a first face of the laminated body. The first lid member is configured to, if an internal pressure of the cell case is lower than atmospheric pressure, deform while keeping the tightly closing state, come into contact with the first face of the laminated body, and apply a pressure based on a differential pressure between atmospheric pressure and the internal pressure of the cell case to the contacting face.Type: ApplicationFiled: March 8, 2017Publication date: November 21, 2019Applicant: NISSAN MOTOR CO., LTD.Inventors: Hajime SATOU, Yasuhiko OHSAWA, Yuki KUSACHI, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Yusuke EMORI, Takahiro IMAISHI