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公开(公告)号：CA2775284C
公开(公告)日：2018-09-04
申请号：CA2775284
申请日：2010-03-18
Applicant: UNIV KYOTO , SUMITOMO ELECTRIC INDUSTRIES
Inventor： FUKUNAGA ATSUSHI , INAZAWA SHINJI , MAJIMA MASATOSHI , NITTA KOJI , SAKAI SHOICHIRO , HAGIWARA RIKA , NOHIRA TOSHIYUKI , ISHIBASHI TATSUYA
Abstract: A battery including a positive electrode, a negative electrode mainly composed of sodium, and an electrolyte provided between the positive electrode and the negative electrode, the electrolyte being molten salt containing anions expressed with chemical formula (I) below and cations of metal, ( see formula I) R1 and R2 in the chemical formula (I) above independently representing fluorine atom or fluoroalkyl group, the cations of metal containing at least one of at least one type of cations of alkali metal and at least one type of cations of alkaline-earth metal, as well as an energy system including the battery are provided.
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公开(公告)号：CA2766043A1
公开(公告)日：2011-10-20
申请号：CA2766043
申请日：2011-04-14
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： NITTA KOJI , SAKAI SHOICHIRO , INAZAWA SHINJI , HIRAIWA CHIHIRO , FUKUNAGA ATSUSHI , MAJIMA MASATOSHI
IPC: H01M2/02 , H01M10/054 , H01M10/0568 , H01M10/0569
Abstract: Disclosed is a molten salt battery case, which can be used for a molten salt battery that contains, as an electrolytic solution, a molten salt containing sodium ions. The case comprises aluminum or an aluminum alloy containing 90 mass% or more of aluminum.
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13.发明专利
公开(公告)号：CA2795615A1
公开(公告)日：2011-10-13
申请号：CA2795615
申请日：2011-04-06
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： FUKUNAGA ATSUSHI , SAKAI SHOICHIRO , HIRAIWA CHIHIRO , NITTA KOJI , MAJIMA MASATOSHI , INAZAWA SHINJI
Abstract: Disclosed are: a method for producing a separator that can be used in a molten salt battery and is not easily damaged; a method for manufacturing a molten salt battery; a separator; and a molten salt battery which comprises the separator. Specifically, a separator (3) of a molten salt battery is configured of a porous resin sheet. The resin sheet is provided with hydrophilicity, so that the separator (3) has improved wettability with respect to a molten salt. If the resin sheet is a fluororesin sheet, C-F bonds in the fluororesin are broken by impregnating the sheet with water and irradiating the sheet with ultraviolet light, so that hydrophilic groups such as OH groups are formed in the surface layer by a reaction of water and the sheet is provided with hydrophilicity due to the hydrophilic groups. Since the separator (3), which is formed of a resin, is not easily damaged, the separator can be formed in the shape of a bag. A molten salt battery that comprises a separator (3) having the shape of a bag is prevented from dendrite growth, and has improved charge/discharge cycle characteristics.
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14.发明专利
公开(公告)号：CA2776741A1
公开(公告)日：2011-09-15
申请号：CA2776741
申请日：2011-03-01
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： MAJIMA MASATOSHI , INAZAWA SHINJI , SAKAI SHOICHIRO , NITTA KOJI , FUKUNAGA ATSUSHI , HIRAIWA CHIHIRO
Abstract: A molten salt battery (1) comprises: an Al case (5) having an almost rectangular parallelepiped shape; and a positive electrode (2) comprising an active material film (22) formed on an Al current collector (21), a separator (3) comprising a glass cloth impregnated with a molten salt that serves as an electrolyte, and a negative electrode (4) comprising a Zn film (42) and an active material film (43) formed on an Al current collector (41), all of which are contained in the Al case (5). In the molten salt battery (1), the active material film (43) contains an active material comprising an Sn-Na alloy, the active material film (22) and the active material film (43) can store and release Na ions from the molten salt and therefore the hardness on the surface side (i.e., the active material side) becomes higher than that of the Na negative electrode upon driving of the battery, the generation of Na dendrites can be prevented, and the capacity of the battery can be increased. Thus, disclosed are: a negative electrode material for a battery; a negative electrode precursor material for a battery; and a battery equipped with a negative electrode comprising the negative electrode material.
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公开(公告)号：CA2775284A1
公开(公告)日：2011-03-31
申请号：CA2775284
申请日：2010-03-18
Applicant: UNIV KYOTO , SUMITOMO ELECTRIC INDUSTRIES
Inventor： FUKUNAGA ATSUSHI , INAZAWA SHINJI , MAJIMA MASATOSHI , NITTA KOJI , SAKAI SHOICHIRO , HAGIWARA RIKA , NOHIRA TOSHIYUKI , ISHIBASHI TATSUYA
Abstract: Disclosed is a battery (1) which comprises a positive electrode (4), a negative electrode (3) that is mainly composed of sodium, and an electrolyte that is arranged between the positive electrode (4) and the negative electrode (3). The electrolyte is composed of a molten salt that contains anions represented by formula (I) (wherein R1 and R2 each independently represents a fluorine atom or a fluoroalkyl group) and metal cations, and the metal cations contain either at least one kind of alkali metal cations and/or at least one kind of alkaline earth metal cations. Also disclosed is an energy system using the battery (1).
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Patent Agency Ranking
公开(公告)号：CA2819138C
公开(公告)日：2018-12-04
申请号：CA2819138
申请日：2011-11-07
Applicant: SUMITOMO ELECTRIC INDUSTRIES , UNIV KYOTO
Inventor： NITTA KOJI , INAZAWA SHINJI , MAJIMA MASATOSHI , YAMAGUCHI ATSUSHI , SAKAI SHOICHIRO , FUKUNAGA ATSUSHI , HAGIWARA RIKA , NOHIRA TOSHIYUKI , MATSUMOTO KAZUHIKO
IPC: H01M10/39
Abstract: A separator (3) of a molten salt battery is impregnated with a molten salt that serves as the electrolyte. The molten salt contains, as cations, at least one kind of ions selected from among quaternary ammonium ions, imidazolium ions, imidazolinium ions, pyridinium ions, pyrrolidinium ions, piperidinium ions, morpholinium ions, phosphonium ions, piperazinium ions and sulfonium ions in addition to sodium ions. These cations do not have adverse effects on a positive electrode (1). In addition, the melting point of the molten salt, which contains sodium ions and the above-mentioned cations, is significantly lower than the operating temperature of sodium-sulfur batteries, said operating temperature being 280-360 DEG C. Consequently, the molten salt battery is capable of operating at lower temperatures than sodium-sulfur batteries.
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公开(公告)号：ES2545407T3
公开(公告)日：2015-09-10
申请号：ES11844650
申请日：2011-11-07
Applicant: SUMITOMO ELECTRIC INDUSTRIES , UNIV KYOTO
Inventor： NITTA KOJI , INAZAWA SHINJI , MAJIMA MASATOSHI , YAMAGUCHI ATSUSHI , SAKAI SHOICHIRO , FUKUNAGA ATSUSHI , HAGIWARA RIKA , NOHIRA TOSHIYUKI , MATSUMOTO KAZUHIKO
IPC: H01M10/39
Abstract: Un acumulador de sales fundidas en el que se usa una sal fundida que contiene un ion sodio como catión como electrolito, donde la sal fundida comprende, como anión, un ion, cuya fórmula química estructural general está representada por la siguiente fórmula (1)**Fórmuila** donde X1 y X2 son iguales o diferentes entre sí y cada uno de ellos es un grupo fluoro o un grupo fluoroalquilo, y comprende, como catión, el ion sodio, así como al menos un catión orgánico incluido en el grupo de cationes orgánicos consistente en: un ion amonio cuaternario**Fórmula** donde R1, R2, R3 y R4 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono o un grupo alquiloxialquilo de 1-8 átomos de carbono; un ion imidazolio, cuya fórmula química estructural está representada por la siguiente fórmula (3)**Fórmula** donde R5 y R6 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; un ion imidazolio, cuya fórmula química estructural está representada por la siguiente fórmula (4)**Fórmula** donde R7 y R8 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; un ion piridinio, cuya fórmula química estructural está representada por la siguiente fórmula (5)**Fórmula** donde R9 es un grupo alquilo de 1-8 átomos de carbono; un ion pirrolidinio, cuya fórmula química estructural está representada por la siguiente fórmula (6)**Fórmula** donde R10 y R11 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; un ion piperidinio, cuya fórmula química estructural está representada por la siguiente fórmula (7)**Fórmula** donde R12 y R13 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; un ion morfolinio, cuya fórmula química estructural está representada por la siguiente fórmula (8)**Fórmula** donde R14 y R15 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; un ion fosfonio, cuya fórmula química estructural está representada por la siguiente fórmula (9)**Fórmula** donde R16, R17, R18 y R19 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono, un grupo alquiloxialquilo de 1-8 átomos de carbono o un grupo fenilo; un ion piperazinio, cuya fórmula química estructural está representada por la siguiente fórmula (10)**Fórmula** donde R20, R21, R22 y R23 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono; y un ion sulfonio, cuya fórmula química estructural está representada por la siguiente fórmula (11)**Fórmula** donde R24, R25 y R26 son iguales o diferentes entre sí y cada uno de ellos es un grupo alquilo de 1-8 átomos de carbono, caracterizado por que la sal fundida no contiene ni ion potasio ni ion cesio.
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公开(公告)号：EA019152B1
公开(公告)日：2014-01-30
申请号：EA201000368
申请日：2010-03-22
Applicant: SUMITOMO ELECTRIC INDUSTRIES , UNIV KYOTO
Inventor： FUKUNAGA ATSUSHI , INAZAWA SHINJI , MAJIMA MASATOSHI , NITTA KOJI , SAKAI SHOICHIRO , HAGIWARA RIKA , NOHIRA TOSHIYUKI , ISHIBASHI TATSUYA
IPC: H01M10/056 , H01M6/16
Abstract: Предложеныбатарея (1), включающаяв себяположительныйэлектрод (4), отрицательныйэлектрод (3), главнымобразомсостоящийизнатрия, иэлектролит, предусмотренныймеждуположительнымэлектродом (4) иотрицательнымэлектродом (3), причемэлектролитявляетсясолевымрасплавом, содержащиманионы, выраженныенижеприведеннойхимическойформулой (I), икатионыметаллаRи Rвхимическойформуле (I) независимопредставляютсобойатомфтораилифторалкильнуюгруппу, катионыметалласодержатпоменьшеймереодинизпоменьшеймереодноготипакатионовщелочногометаллаи поменьшеймереодноготипакатионовщелочно-земельногометалла, атакжеэнергосистема, включающаяв себяэтубатарею (1).
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19.发明专利
公开(公告)号：DE112011102601T5
公开(公告)日：2013-05-08
申请号：DE112011102601
申请日：2011-07-25
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： INAZAWA SHINJI , FUKUNAGA ATSUSHI , MAJIMA MASATOSHI , YAMAGUCHI ATSUSHI , NITTA KOJI , SAKAI SHOICHIRO
Abstract: Ein Hauptgegenstand ist es, einen porösen Metallkörper herzustellen, der als eine Batterieelektrode, insbesondere als eine negative Elektrode einer Salzschmelzen-Batterie unter Verwendung von Natrium verwendet werden kann. Der poröse Metallkörper enthält ein hohles Metallgerüst, das aus einer Metallschicht, die Nickel oder Kupfer als Hauptbestandteil enthält, zusammengesetzt ist und eine Aluminiumdeckschicht, die wenigstens eine äußere Oberfläche des Metallgerüsts bedeckt. Der poröse Metallkörper enthält ferner eine Zinndeckschicht, die die Aluminiumdeckschicht bedeckt, und wird als eine Batterieelektrode verwendet. Vorzugsweise weist das Gerüst durchgängige Poren aufgrund dessen dreidimensionaler Netzwerkstruktur auf und weist eine Porosität von 90% oder mehr auf.
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公开(公告)号：CA2800159A1
公开(公告)日：2011-12-01
申请号：CA2800159
申请日：2011-05-20
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： FUKUNAGA ATSUSHI , SAKAI SHOICHIRO , HIRAIWA CHIHIRO , NITTA KOJI , MAJIMA MASATOSHI , INAZAWA SHINJI
Abstract: Disclosed is a molten salt battery which is extremely safe and has a long charging/discharging cycle life. The molten salt battery comprises a negative electrode (1) in which the main component of a negative electrode material (12) is carbon such as hard carbon. In order to improve affinity with molten salt in the negative electrode material (12), surface processing is performed to confer a hydrophilic property to the negative electrode material (12). Furthermore, a transition metal such as iron is added to the negative electrode material (12), which comprises hard carbon as the main component, in order to improve affinity with an active substance. The molten salt battery is extremely safe in terms of manufacture and use in comparison with conventional molten salt batteries in which metallic sodium is employed as an electrode, and in addition the charging/discharging cycle life of the molten salt battery is long.
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