Patents by Inventor Norihiro Ose
Norihiro Ose 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: 9985314Abstract: A method is provided for preparing an all-solid battery that at least includes a negative electrode layer containing a negative electrode active material and a sulfide solid electrolyte, and a negative electrode current collector containing a metal that is in contact with the negative electrode layer and can react with the sulfide solid electrolyte, in which a sulfur compound generated by a reaction of the metal contained in the negative electrode current collector and the sulfide solid electrolyte contained in the negative electrode layer is not present in a contact portion of the negative electrode layer and the negative electrode current collector.Type: GrantFiled: January 14, 2014Date of Patent: May 29, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Ose, Kengo Haga, Tomoharu Sasaoka
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Patent number: 9903918Abstract: An object of the present invention is to provide an apparatus for inspecting an all-solid battery with which a battery capacity where a voltage abnormality occurs can be grasped before the voltage abnormality occurs. The present invention is an apparatus for inspecting an all-solid battery including a storage section storing a relationship between the battery capacity where the voltage abnormality occurs and a resistance of the all-solid battery, and a resistance calculation section calculating the resistance based on a current and voltage in charging the all-solid battery, wherein the battery capacity where the voltage abnormality occurs in the all-solid battery is calculated from the relationship stored in the storage section and the resistance calculated in the resistance calculation section.Type: GrantFiled: April 19, 2012Date of Patent: February 27, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Norihiro Ose
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Patent number: 9882234Abstract: An all-solid battery having stacked therein, in order, a positive electrode laminate, an intermediate solid electrolyte layer, and a negative electrode laminate is manufactured by a first pressing step (i) of applying pressure to the positive electrode laminate, a second pressing step (ii) of applying pressure to the negative electrode laminate, and a third pressing step (iii) of applying pressure to the positive electrode laminate, the intermediate solid electrolyte layer, and the negative electrode laminate.Type: GrantFiled: June 9, 2016Date of Patent: January 30, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi Kosaka, Norihiro Ose, Kengo Haga, Tomoya Suzuki, Hajime Hasegawa, Keisuke Omori
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Patent number: 9786946Abstract: A solid-state battery comprising a stack including at least one unit cell including a positive electrode layer including a positive electrode active material, a negative electrode layer including a negative electrode active material, and a solid electrolyte layer laminated between the positive and negative electrode layers, and an outer covering accommodating the stack, wherein the solid-state battery further including a pressure receiving member provided on at least a part of a periphery of the outer covering, and wherein the pressure receiving member has a thickness of less than a total thickness of the stack and the outer covering in a stacking direction of the unit cell.Type: GrantFiled: March 18, 2015Date of Patent: October 10, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoharu Sasaoka, Norihiro Ose, Hajime Hasegawa, Kazuhito Kato, Kengo Haga, Daichi Kosaka
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Publication number: 20170244097Abstract: A method is provided where an anode of an all-solid-state lithium ion secondary battery is easily doped with lithium and to provide a small resistance at a low battery capacity. The method includes a manufacturing method of a cathode including mixing at least a conductive assistant (C1) and a sulfide solid electrolyte (E1) to obtain a mixture; and mixing at least one cathode active material, a solid electrolyte (E2) and the mixture obtained from the first step to obtain a cathode mixture, wherein an amount of energy added to the sulfide solid electrolyte (E1) is larger than an amount of energy added to the solid electrolyte (E2), and the mixture is a material that releases lithium ions at a potential lower than a potential at which the cathode active material releases and occludes lithium ions. Manufacturing methods for a cathode and an all-solid-state lithium ion secondary battery including the cathode mixture are also disclosed.Type: ApplicationFiled: February 3, 2017Publication date: August 24, 2017Inventors: Norihiro OSE, Hikaru ASO, Keisuke OMORI, Hajime HASEGAWA, Mitsutoshi OTAKI, Hideyuki KOGA
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Publication number: 20170200972Abstract: A method for producing a sulfide all-solid-state battery with a high capacity retention rate, and a sulfide all-solid-state battery with a high capacity retention rate. The method for producing a sulfide all-solid-state battery may comprise forming a sulfide all-solid-state battery, initially charging the sulfide all-solid-state battery after the forming of the sulfide all-solid-state battery, and exposing the sulfide all-solid-state battery to an oxygen-containing gas atmosphere at at least any one of a time of the initially charging of the sulfide all-solid-state battery and a time after the initially charging of the sulfide all-solid-state battery.Type: ApplicationFiled: December 13, 2016Publication date: July 13, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Norihiro OSE, Kengo HAGA, Mitsutoshi OTAKI, Keisuke OMORI, Takeshi TOJIGAMORI
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Publication number: 20170092988Abstract: A method of manufacturing an electrode laminate, which includes an active material layer and a solid electrolyte layer formed on the active material layer, includes: an active material layer forming step of forming an active material layer; and a solid electrolyte layer forming step of forming a solid electrolyte layer on the active material layer by applying a solid electrolyte layer-forming slurry to the active material layer and drying the solid electrolyte layer-forming slurry. In this method, a product of a filling factor of the active material layer and a volume proportion of an active material in the active material layer is 0.33 to 0.41.Type: ApplicationFiled: September 23, 2016Publication date: March 30, 2017Inventors: Kengo Haga, Junichiro Nishino, Norihiro Ose, Hajime Hasegawa, Mitsutoshi Otaki, Hiroki Kubo, Keisuke Omori
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Publication number: 20170092987Abstract: A method of manufacturing an electrode laminate, which includes an active material layer and a solid electrolyte layer formed on the active material layer, includes: an active material layer forming step of forming an active material layer; and a solid electrolyte layer forming step of forming a solid electrolyte layer on the active material layer by applying a solid electrolyte layer-forming slurry to the active material layer and drying the solid electrolyte layer-forming slurry. In this method, a surface roughness Ra value of the active material layer is 0.29 ?m to 0.98 ?m when calculated using a laser microscope.Type: ApplicationFiled: September 23, 2016Publication date: March 30, 2017Inventors: Kengo Haga, Junichiro Nishino, Norihiro Ose, Hajime Hasegawa, Mitsutoshi Otaki, Hiroki Kubo, Keisuke Omori
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Publication number: 20170077732Abstract: An all-solid-state battery system comprising an all-solid-state battery comprising a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer, and a control device configured to control a charge-discharge voltage during use of the all-solid-state battery. The negative electrode active material layer includes alloy negative electrode active material particles. The amorphization degree of the alloy negative electrode active material particles is in the range of 27.8% to 82.8% and a ratio Z/W is in the range of 0.32 to 0.60, where Z is a controlled discharge capacity of the all-solid-state battery, and W is a theoretical capacity of the alloy negative electrode active material particles×a total weight of the alloy negative electrode active material particles×the amorphization degree.Type: ApplicationFiled: September 14, 2016Publication date: March 16, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsutoshi OTAKI, Keisuke OMORI, Norihiro OSE, Hajime HASEGAWA, Kengo HAGA
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Publication number: 20170077548Abstract: A method of manufacturing an all-solid-state battery includes a lamination step of laminating a deactivated lithium-containing negative electrode active material layer containing deactivated lithium, a solid electrolyte layer for the all-solid-state battery, and a positive electrode active material layer for the all-solid-state battery such that the solid electrolyte layer for the all-solid-state battery is disposed between the deactivated lithium-containing negative electrode active material layer and the positive electrode active material layer for the all-solid-state battery.Type: ApplicationFiled: September 14, 2016Publication date: March 16, 2017Inventors: Keisuke Omori, Hajime Hasegawa, Kengo Haga, Mitsutoshi Otaki, Norihiro Ose, Daichi Kosaka, Masato Hozumi
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Patent number: 9564655Abstract: A manufacturing method of an all-solid battery includes fabricating a single battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; fabricating a plurality of battery packs including the plurality of single batteries; confining a plurality of battery packs by an equal confining pressure; measuring the electrical characteristics of the plurality of confined battery packs; determining the battery pack whose measured electrical characteristics are the worst of the plurality of battery packs; reducing the confining pressures of the other battery packs so that the electrical characteristics of the other battery packs are equal to that of the battery pack whose electrical characteristics have been determined to be the worst; and electrically connecting in parallel the battery packs.Type: GrantFiled: December 2, 2014Date of Patent: February 7, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime Hasegawa, Norihiro Ose, Tomoharu Sasaoka, Kazuhito Kato, Kengo Haga, Daichi Kosaka
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Publication number: 20160380301Abstract: An all-solid battery having stacked therein, in order, a positive electrode laminate, an intermediate solid electrolyte layer, and a negative electrode laminate is manufactured by a first pressing step (i) of applying pressure to the positive electrode laminate, a second pressing step (ii) of applying pressure to the negative electrode laminate, and a third pressing step (iii) of applying pressure to the positive electrode laminate, the intermediate solid electrolyte layer, and the negative electrode laminate.Type: ApplicationFiled: June 9, 2016Publication date: December 29, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi KOSAKA, Norihiro OSE, Kengo HAGA, Tomoya SUZUKI, Hajime HASEGAWA, Keisuke OMORI
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Patent number: 9525192Abstract: The main object of the present invention is to provide an all solid state battery suitable for high rate charging. The present invention solves the problem by providing an all solid state battery including a battery element having a cathode active material layer, an anode active material layer, and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer, characterized in that the anode active material layer contains graphite as an anode active material and a sulfide solid electrolyte, the graphite has a hardness of 0.36 GPa or more by a nanoindentation method, and the battery element is confined at a pressure more than 75 kgf/cm2.Type: GrantFiled: July 24, 2012Date of Patent: December 20, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Ose, Hiroshi Nagase
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Patent number: 9399404Abstract: An objective of the present invention is to provide a charging system, capable of increasing the rapid charging capacity of an on-vehicle all-solid-state battery, and reducing the effect of confining pressure on the all-solid-state battery. This is achieved by a charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising: a charging section that charges an all-solid-state battery, a pressing section that applies confining pressure to the all-solid-state battery, and a pressure control section that controls the confining pressure, wherein the pressure control section directs the pressing section so that the confining pressure during charging is higher than the confining pressure during discharging.Type: GrantFiled: November 6, 2014Date of Patent: July 26, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Ose, Tomoharu Sasaoka, Hajime Hasegawa, Kazuhito Kato, Kengo Haga, Daichi Kosaka
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Publication number: 20150357674Abstract: An all-solid battery that includes a negative electrode layer, a positive electrode layer, a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, a negative electrode current collector connected to the negative electrode layer, and a positive electrode current collector connected to the positive electrode layer, wherein the negative electrode layer contains a sulfide solid electrolyte, the negative electrode current collector contains a metal that reacts with the sulfide solid electrolyte, a sulfur compound layer that contains a sulfur compound generated by a reaction of the sulfide solid electrolyte and the metal is present between the negative electrode layer and the negative electrode current collector, charge capacity when constant current charge was conducted up to 3.6 V at 0.3 C or more and 3.6 C or less in an initial charge after preparation of the all-solid battery is 50 mAh/g or more and 90 mAh/g or less.Type: ApplicationFiled: January 14, 2014Publication date: December 10, 2015Applicant: TOYOTA Jidosha Kabushiki KaishaInventors: Kengo HAGA, Norihiro OSE, Hajime HASEGAWA
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Publication number: 20150349378Abstract: An all-solid battery that at least includes a negative electrode layer containing a negative electrode active material and a sulfide solid electrolyte, and a negative electrode current collector containing a metal that is in contact with the negative electrode layer and can react with the sulfide solid electrolyte, in which a sulfur compound generated by a reaction of the metal contained in the negative electrode current collector and the sulfide solid electrolyte contained in the negative electrode layer is not present in a contact portion of the negative electrode layer and the negative electrode current collector.Type: ApplicationFiled: January 14, 2014Publication date: December 3, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro OSE, Kengo HAGA, Tomoharu SASAOKA
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Publication number: 20150270585Abstract: A solid-state battery comprising a stack including at least one unit cell including a positive electrode layer including a positive electrode active material, a negative electrode layer including a negative electrode active material, and a solid electrolyte layer laminated between the positive and negative electrode layers, and an outer covering accommodating the stack, wherein the solid-state battery further including a pressure receiving member provided on at least a part of a periphery of the outer covering, and wherein the pressure receiving member has a thickness of less than a total thickness of the stack and the outer covering in a stacking direction of the unit cell.Type: ApplicationFiled: March 18, 2015Publication date: September 24, 2015Inventors: Tomoharu SASAOKA, Norihiro OSE, Hajime HASEGAWA, Kazuhito KATO, Kengo HAGA, Daichi KOSAKA
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Publication number: 20150207177Abstract: The main object of the present invention is to provide an all solid state battery suitable for high rate charging. The present invention solves the problem by providing an all solid state battery including a battery element having a cathode active material layer, an anode active material layer, and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer, characterized in that the anode active material layer contains graphite as an anode active material and a sulfide solid electrolyte, the graphite has a hardness of 0.36 GPa or more by a nanoindentation method, and the battery element is confined at a pressure more than 75 kgf/cm2.Type: ApplicationFiled: July 24, 2012Publication date: July 23, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Ose, Hiroshi Nagase
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Publication number: 20150180076Abstract: A manufacturing method of an all-solid battery includes fabricating a single battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; fabricating a plurality of battery packs including the plurality of single batteries; confining a plurality of battery packs by an equal confining pressure; measuring the electrical characteristics of the plurality of confined battery packs; determining the battery pack whose measured electrical characteristics are the worst of the plurality of battery packs; reducing the confining pressures of the other battery packs so that the electrical characteristics of the other battery packs are equal to that of the battery pack whose electrical characteristics have been determined to be the worst; and electrically connecting in parallel the battery packs.Type: ApplicationFiled: December 2, 2014Publication date: June 25, 2015Inventors: Hajime HASEGAWA, Norihiro OSE, Tomoharu SASAOKA, Kazuhito KATO, Kengo HAGA, Daichi KOSAKA
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Publication number: 20150134172Abstract: An objective of the present invention is to provide a charging system, capable of increasing the rapid charging capacity of an on-vehicle all-solid-state battery, and reducing the effect of confining pressure on the all-solid-state battery. This is achieved by a charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising: a charging section that charges an all-solid-state battery, a pressing section that applies confining pressure to the all-solid-state battery, and a pressure control section that controls the confining pressure, wherein the pressure control section directs the pressing section so that the confining pressure during charging is higher than the confining pressure during discharging.Type: ApplicationFiled: November 6, 2014Publication date: May 14, 2015Inventors: Norihiro OSE, Tomoharu SASAOKA, Hajime HASEGAWA, Kazuhito KATO, Kengo HAGA, Daichi KOSAKA