Patents by Inventor Motoaki Nishijima
Motoaki Nishijima 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: 10263254Abstract: The invention relates to novel materials of the formula: AuM1vM2wM3x02±? wherein A is one or more alkali metals; M1 comprises one or more redox active metals with an oxidation state in the range +2 to +4; M2 comprises tin, optionally in combination with one or more transition metals; M3 comprises one or more transition metals either alone or in combination with one or more non-transition elements selected from alkali metals, alkaline earth metals, other metals, metalloids and non-metals, with an oxidation state in the range +1 to +5; wherein the oxidation state of M1, M2, and M3 are chosen to maintain charge neutrality and further wherein ? is in the range 0???0.4; U is in the range 0.3<U<2; V is in the range 0.1?V<0.75; W is in the range 0<W<0.75; X is in the range 0?X<0.5; and (U+V+W+X)<4.0. Such materials are useful, for example as electrode materials, in rechargeable battery applications.Type: GrantFiled: May 22, 2015Date of Patent: April 16, 2019Assignees: Faradion Limited, Sharp Kabushiki KaishaInventors: Emma Kendrick, Robert Gruar, Motoaki Nishijima, Hirotaka Mizuhata, Takuya Otani, Isao Asako, Yuichi Kamimura
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Publication number: 20180006322Abstract: In a secondary battery including a large-sized electrode group including stacked positive and negative electrode plates, an electrode plate in which failures such as the separation and cracking of an active material layer and the abrasion and cracking of a current collector are unlikely to occur is provided. An electrode plate 21 includes a coated region CR where active material layers 21a are formed and an uncoated region NC where no active material layer is formed and has a configuration in which a boundary section between the coated region and the uncoated region is provided with a first buffer region C2 having a non-linear irregular shape in plan view.Type: ApplicationFiled: September 13, 2017Publication date: January 4, 2018Inventors: Shumpei NISHINAKA, Naoto NISHIMURA, Takahiro MATSUYAMA, Isao ASAKO, Motoaki NISHIJIMA, Satoshi ARIMA, Hisayuki UTSUMI
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Patent number: 9847527Abstract: A battery structure is provided for making alkali ion and alkaline-earth ion batteries. The battery has a hexacyanometallate cathode, a non-metal anode, and non-aqueous electrolyte. A method is provided for forming the hexacyanometallate battery cathode and non-metal battery anode prior to the battery assembly. The cathode includes hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A?n?AmM1xM2y(CN)6, and have a Prussian Blue hexacyanometallate crystal structure.Type: GrantFiled: April 29, 2015Date of Patent: December 19, 2017Assignee: Sharp Laboratories of America, Inc.Inventors: Yuhao Lu, Jong-Jan Lee, Motoaki Nishijima, Seizoh Kakimoto
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Patent number: 9742027Abstract: A first method for fabricating an anode for use in sodium-ion and potassium-ion batteries includes mixing a conductive carbon material having a low surface area, a hard carbon material, and a binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A second method for fabricating an anode for use in sodium-ion and potassium-ion batteries mixes a metal-containing material, a hard carbon material, and binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A third method for fabricating an anode for use in sodium-ion and potassium-ion batteries provides a hard carbon material having a pyrolyzed polymer coating that is mixed with a binder material to form a carbon-composite material, which is coated on a conductive substrate. Descriptions of the anodes and batteries formed by the above-described methods are also provided.Type: GrantFiled: March 13, 2015Date of Patent: August 22, 2017Assignee: Sharp Laboratories of America, Inc.Inventors: Sean Vail, Yuhao Lu, Long Wang, Motoaki Nishijima, Jong-Jan Lee
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Patent number: 9705130Abstract: An electrochemical battery is provided with an aluminum anode current collector and an antimony (Sb)-based electrochemically active material overlying the aluminum current collector. The Sb-based electrochemically active material may be pure antimony, Sb with other metal elements, or Sb with non-metal elements. For example, the Sb-based electrochemically active material may be one of the following: Sb binary or ternary alloys of sodium, silicon, tin, germanium, bismuth, selenium, tellurium, thallium, aluminum, gold, cadmium, mercury, cesium, gallium, titanium, lead, carbon, and combinations thereof. The aluminum current collector may additionally include a material such as magnesium, iron, nickel, titanium, and combinations thereof. In one aspect, the anode further composed of a coating interposed between the aluminum current collector and the Sb-based electrochemically active material. This coating may be a non-corrodible metal or a carbonaceous material.Type: GrantFiled: August 11, 2015Date of Patent: July 11, 2017Assignee: Sharp Laboratories of America, Inc.Inventors: Xin Zhao, Sean Vail, Yuhao Lu, Motoaki Nishijima
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Publication number: 20170092947Abstract: The invention relates to novel materials of the formula: AuM1vM2wM3x02±? wherein A is one or more alkali metals; M1 comprises one or more redox active metals with an oxidation state in the range +2 to +4; M2 comprises tin, optionally in combination with one or more transition metals; M3 comprises one or more transition metals either alone or in combination with one or more non-transition elements selected from alkali metals, alkaline earth metals, other metals, metalloids and non-metals, with an oxidation state in the range +1 to +5; wherein the oxidation state of M1, M2, and M3 are chosen to maintain charge neutrality and further wherein ? is in the range 0???0.4; U is in the range 0.3<U<2; V is in the range 0.1?V<0.75; W is in the range 0<W<0.75; X is in the range 0?X<0.5; and (U+V+W+X)<4.0. Such materials are useful, for example as electrode materials, in rechargeable battery applications.Type: ApplicationFiled: May 22, 2015Publication date: March 30, 2017Inventors: Emma KENDRICK, Robert GRUAR, Motoaki NISHIJIMA, Hirotaka MIZUHATA, Takuya OTANI, Isao ASAKO, Yuichi KAMIMURA
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Patent number: 9608268Abstract: A battery structure is provided for making alkali ion and alkaline-earth ion batteries. The battery has a hexacyanometallate cathode, a non-metal anode, and non-aqueous electrolyte. A method is provided for forming the hexacyanometallate battery cathode and non-metal battery anode prior to the battery assembly. The cathode includes hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A?n?AmM1xM2y(CN)6, and have a Prussian Blue hexacyanometallate crystal structure.Type: GrantFiled: April 29, 2015Date of Patent: March 28, 2017Assignee: Sharp Laboratories of America, Inc.Inventors: Yuhao Lu, Jong-Jan Lee, Motoaki Nishijima, Seizoh Kakimoto
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Patent number: 9559358Abstract: A battery structure is provided for making alkali ion and alkaline-earth ion batteries. The battery has a hexacyanometallate cathode, a non-metal anode, and non-aqueous electrolyte. A method is provided for forming the hexacyanometallate battery cathode and non-metal battery anode prior to the battery assembly. The cathode includes hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A?n?AmM1xM2y(CN)6, and have a Prussian Blue hexacyanometallate crystal structure.Type: GrantFiled: April 17, 2012Date of Patent: January 31, 2017Assignee: Sharp Laboratories of America, Inc.Inventors: Yuhao Lu, Jong-Jan Lee, Motoaki Nishijima, Seizoh Kakimoto
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Patent number: 9419280Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1?xMxP1?ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.Type: GrantFiled: December 18, 2014Date of Patent: August 16, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
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Patent number: 9373844Abstract: A positive electrode active substance including a lithium-containing metal oxide represented by the following general formula (1): LiFe1-xMxP1-ySiyO4??(1) wherein M represents an element selected from Sn, Zr, Y, and Al; 0<x<1; and 0<y<1, wherein the lithium-containing metal oxide has a lattice constant and a half value width of a diffraction peak of a (011) plane.Type: GrantFiled: November 14, 2013Date of Patent: June 21, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
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Patent number: 9350022Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.Type: GrantFiled: December 18, 2014Date of Patent: May 24, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
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Patent number: 9350021Abstract: Provided is a cathode active material which is superior in safety and cost and makes it possible to provide a nonaqueous secondary battery having a long life. The cathode active material has a composition represented by the following formula (1): LiMn1-xMxP1-yAlyO4??(1) (wherein M is at least one selected from the group consisting of Ti, V, Zr, Sn and Y, x is in a range of 0<x?0.5, and y is in a range of 0<y?0.25).Type: GrantFiled: December 28, 2012Date of Patent: May 24, 2016Assignee: Sharp Kabushiki KaishaInventors: Koji Ohira, Motoaki Nishijima, Yuichi Kamimura
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Patent number: 9337489Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1?xMxP1?ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.Type: GrantFiled: February 23, 2015Date of Patent: May 10, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
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Patent number: 9325009Abstract: A cathodic active material for a nonaqueous electrolyte secondary battery according to the invention includes a lithium-containing transition metal phosphate containing Li and a transition metal. A transition metal site and P site of the lithium-containing transition metal phosphate are replaced by elements other than elements contained in the lithium-containing transition metal phosphate, and the quantity of P site is excessive with respect to a stoichiometric proportion of the lithium-containing transition metal phosphate. With this cathodic active material, a high-power and high-capacity secondary battery which is superior in safety and cost and has superior rate performance can be provided.Type: GrantFiled: June 5, 2013Date of Patent: April 26, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Yuichi Kamimura, Motoaki Nishijima, Tomohisa Yoshie, Koji Ohira
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Positive electrode active material, positive electrode, and nonaqueous-electrolyte secondary battery
Patent number: 9293234Abstract: Provided is a positive electrode active material giving nonaqueous-electrolyte secondary batteries superior in cycle characteristics. The positive electrode active material according to the present invention includes a lithium-containing composite metal oxide having the composition represented by the following General Formula (1): LizFe1-xMxP1-ySiyO4??(1) (wherein M is at least one metal element selected from Zr, Sn, Y, and Al, 0.05<x<1, and 0.05<y<1), characterized in that: the positive electrode active material is in the single crystalline phase of the lithium-containing composite oxide represented by General Formula (1) when 1>z>0.9 to 0.75 or 0.25 to 0.1>z>0; the positive electrode active material has two crystalline phases of the lithium-containing composite oxides represented by the following General Formulae (2) and (3) when 0.9 to 0.75>z>0.25 to 0.1: LiaFe1-xMxP1-ySiyO4??(2) (wherein 0.75 to 0.9?a?1.00, 0.05<x<1, and 0.Type: GrantFiled: June 16, 2011Date of Patent: March 22, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Motoaki Nishijima, Koji Ohira, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai -
Publication number: 20160028086Abstract: A first method for fabricating an anode for use in sodium-ion and potassium-ion batteries includes mixing a conductive carbon material having a low surface area, a hard carbon material, and a binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A second method for fabricating an anode for use in sodium-ion and potassium-ion batteries mixes a metal-containing material, a hard carbon material, and binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A third method for fabricating an anode for use in sodium-ion and potassium-ion batteries provides a hard carbon material having a pyrolyzed polymer coating that is mixed with a binder material to form a carbon-composite material, which is coated on a conductive substrate. Descriptions of the anodes and batteries formed by the above-described methods are also provided.Type: ApplicationFiled: March 13, 2015Publication date: January 28, 2016Inventors: Sean Vail, Yuhao Lu, Long Wang, Motoaki Nishijima, Jong-Jan Lee
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Publication number: 20150349338Abstract: An electrochemical battery is provided with an aluminum anode current collector and an antimony (Sb)-based electrochemically active material overlying the aluminum current collector. The Sb-based electrochemically active material may be pure antimony, Sb with other metal elements, or Sb with non-metal elements. For example, the Sb-based electrochemically active material may be one of the following: Sb binary or ternary alloys of sodium, silicon, tin, germanium, bismuth, selenium, tellurium, thallium, aluminum, gold, cadmium, mercury, cesium, gallium, titanium, lead, carbon, and combinations thereof. The aluminum current collector may additionally include a material such as magnesium, iron, nickel, titanium, and combinations thereof. In one aspect, the anode further composed of a coating interposed between the aluminum current collector and the Sb-based electrochemically active material. This coating may be a non-corrodible metal or a carbonaceous material.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Inventors: Xin Zhao, Sean Vail, Yuhao Lu, Motoaki Nishijima
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Publication number: 20150303472Abstract: The positive electrode active material of the present invention contains an lithium iron phosphate compound having such diffraction peaks that diffraction peak intensity ratios at 2?=17.2±0.5°, 2?=20.8±0.5° and 2?=25.6±0.5° are from 29 to 37, from 70 to 80 and from 85 to 94, respectively, when the diffraction peak intensity at 2?=35.6±0.5° is deemed as 100 in a powder X-ray diffractometry using Cu-K? ray as a radiation source. It becomes possible to provide a positive electrode active material that provides higher rate property and discharge capacity, and a positive electrode and a non-aqueous electrolyte secondary battery using the positive electrode active material.Type: ApplicationFiled: October 10, 2013Publication date: October 22, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Tomohisa YOSHIE, Yuichi KAMIMURA, Koji OHIRA, Motoaki NISHIJIMA
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Publication number: 20150243988Abstract: A battery structure is provided for making alkali ion and alkaline-earth ion batteries. The battery has a hexacyanometallate cathode, a non-metal anode, and non-aqueous electrolyte. A method is provided for forming the hexacyanometallate battery cathode and non-metal battery anode prior to the battery assembly. The cathode includes hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A?n?AmM1xM2y(CN)6, and have a Prussian Blue hexacyanometallate crystal structure.Type: ApplicationFiled: April 29, 2015Publication date: August 27, 2015Inventors: Yuhao Lu, Jong-Jan Lee, Motoaki Nishijima, Seizoh Kakimoto
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Publication number: 20150244017Abstract: In a secondary battery including a large-sized electrode group including stacked positive and negative electrode plates, an electrode plate in which failures such as the separation and cracking of an active material layer and the abrasion and cracking of a current collector are unlikely to occur is provided. An electrode plate 21 includes a coated region CR where active material layers 21a are formed and an uncoated region NC where no active material layer is formed and has a configuration in which a boundary section between the coated region and the uncoated region is provided with a first buffer region C2 having a non-linear irregular shape in plan view.Type: ApplicationFiled: August 28, 2013Publication date: August 27, 2015Inventors: Shumpei Nishinaka, Naoto Nishimura, Takahiro Matsuyama, Isao Asako, Motoaki Nishijima, Satoshi Arima, Hisayuki Utsumi