公开(公告)号：US20120115002A1

公开(公告)日：2012-05-10

申请号：US13252298

申请日：2011-10-04

申请人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

发明人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

IPC分类号： H01M10/39

CPC分类号： H01M10/399

摘要： To provide a molten salt battery which is highly safe and has long charge/discharge cycle life. The molten salt battery of the present invention includes a negative electrode 1 in which a negative electrode active material 12 is predominantly composed of carbon such as hard carbon. The negative electrode active material 12 is surface-treated for imparting hydrophilicity to the negative electrode active material 12 to improve the affinity for the molten salt. Further, a transition metal such as iron is added to the negative electrode active material 12 predominantly composed of hard carbon in order to enhance the affinity for the active material. The molten salt battery has higher safety in production and use and longer charge/discharge cycle life than conventional molten salt batteries using metallic sodium as an electrode.

摘要翻译： 提供高度安全且具有长充放电循环寿命的熔盐电池。 本发明的熔盐电池包括负极1，其中负极活性物质12主要由诸如硬碳的碳组成。 对负极活性物质12进行表面处理，赋予负极活性物质12亲水性，提高对熔融盐的亲和性。 此外，为了提高对活性物质的亲和性，向负极活性物质12添加铁等过渡金属，主要由硬碳构成。 与使用金属钠作为电极的常规熔盐电池相比，熔盐电池的生产和使用安全性更高，充电/放电循环寿命更长。

公开(公告)号：US09276241B2

公开(公告)日：2016-03-01

申请号：US13335242

申请日：2011-12-22

申请人： Koji Nitta ,  Shoichiro Sakai ,  Shinji Inazawa ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Masatoshi Majima

发明人： Koji Nitta ,  Shoichiro Sakai ,  Shinji Inazawa ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Masatoshi Majima

IPC分类号： H01M2/02 ,  H01M10/054 ,  H01M10/0569

CPC分类号： H01M2/025 ,  H01M2/0285 ,  H01M4/387 ,  H01M4/483 ,  H01M10/054 ,  H01M10/0563 ,  H01M10/0569 ,  H01M2300/0022 ,  H01M2300/0045

摘要： The case for a molten salt battery is used for a molten salt battery containing as an electrolyte a molten salt containing sodium ions. The case is formed of aluminum or an aluminum alloy containing 90% by mass or more of aluminum.

摘要翻译： 熔融盐电池的情况用于含有钠离子的熔融盐作为电解质的熔盐电池。 该壳由铝或含有90质量％以上的铝的铝合金形成。

公开(公告)号：US20120208068A1

公开(公告)日：2012-08-16

申请号：US13252295

申请日：2011-10-04

申请人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

发明人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

IPC分类号： H01M2/16 ,  B05D5/12 ,  B05D3/06 ,  H01M10/04

CPC分类号： H01M10/0525 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/18 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0048 ,  Y10T29/49115

摘要： A separator of a molten salt battery made of a porous resin sheet. The separator is improved in wettability to a molten salt by giving hydrophilicity to the resin sheet. In the case of a fluororesin sheet, the sheet is impregnated with water, and irradiated with ultraviolet rays so that C—F bonds in the fluororesin are cleaved and the resultant reacts with water to generate hydrophilic groups, such as OH groups, in each surface layer thereof. The separator gains hydrophilicity through the hydrophilic groups. The separator made of the resin can be made into a bag form. In a molten salt battery having the bag-form separator, the growth of a dendrite is prevented.

摘要翻译： 由多孔树脂片制成的熔盐电池的隔板。 通过赋予树脂片亲水性，隔膜对熔融盐的润湿性提高。 在氟树脂片的情况下，用水浸渍片材，并用紫外线照射，使氟树脂中的C-F键断开，并与水反应以在每个表面中产生诸如OH基团的亲水基团 层。 分离器通过亲水基团获得亲水性。 由树脂制成的隔板可以制成袋形。 在具有袋状分离器的熔盐电池中，防止枝晶的生长。

公开(公告)号：US20120171524A1

公开(公告)日：2012-07-05

申请号：US13252289

申请日：2011-10-04

申请人： Chihiro Hiraiwa ,  Masatoshi Majima ,  Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Shinji Inazawa

发明人： Chihiro Hiraiwa ,  Masatoshi Majima ,  Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Shinji Inazawa

IPC分类号： H01M10/50

CPC分类号： H01M10/399 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/6568 ,  H01M10/657

摘要： In a molten salt battery device, molten salt batteries are arranged in a container to cause a space to be present around the molten salt batteries, and a heating medium is filled into the space around the molten salt batteries. When an electrothermal heater is used to control the temperature of the heating medium through a temperature controlling section, the heating medium is caused to flow. Between the flowing heating medium and the molten salt batteries, heat is exchanged, whereby the molten salt battery device controls the temperature of the molten salt batteries. Since the molten salt batteries attain the heat exchange with the heating medium, which surrounds the batteries, the internal temperature thereof is evenly controlled. Moreover, the molten salt battery device makes it possible to lower the temperature of the heating medium to cool the molten salt batteries easily.

摘要翻译： 在熔融盐电池装置中，将熔融盐电池配置在容器内，使熔融盐电池周围存在空间，将加热介质填充在熔盐电池周围的空间内。 当使用电热加热器通过温度控制部分控制加热介质的温度时，使加热介质流动。 在流动的加热介质和熔融盐电池之间，更换热量，由此熔融盐电池装置控制熔融盐电池的温度。 由于熔融盐电池与包围电池的加热介质进行热交换，所以其内部温度被均匀地控制。 此外，熔融盐电池装置可以使加热介质的温度降低，容易地冷却熔融盐电池。

公开(公告)号：US20120100416A1

公开(公告)日：2012-04-26

申请号：US13335242

申请日：2011-12-22

申请人： Koji NITTA ,  Shoichiro Sakai ,  Shinji Inazawa ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Masatoshi Majima

发明人： Koji NITTA ,  Shoichiro Sakai ,  Shinji Inazawa ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Masatoshi Majima

IPC分类号： H01M2/02

CPC分类号： H01M2/025 ,  H01M2/0285 ,  H01M4/387 ,  H01M4/483 ,  H01M10/054 ,  H01M10/0563 ,  H01M10/0569 ,  H01M2300/0022 ,  H01M2300/0045

摘要： The case for a molten salt battery is used for a molten salt battery containing as an electrolyte a molten salt containing sodium ions. The case is formed of aluminum or an aluminum alloy containing 90% by mass or more of aluminum.

摘要翻译： 熔融盐电池的情况用于含有钠离子的熔融盐作为电解质的熔盐电池。 该壳由铝或含有90质量％以上的铝的铝合金形成。

公开(公告)号：US08685571B2

公开(公告)日：2014-04-01

申请号：US13252295

申请日：2011-10-04

申请人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

发明人： Atsushi Fukunaga ,  Shoichiro Sakai ,  Chihiro Hiraiwa ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

IPC分类号： H01M2/14 ,  H01M2/16

CPC分类号： H01M10/0525 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/18 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0048 ,  Y10T29/49115

摘要： A separator of a molten salt battery made of a porous resin sheet. The separator is improved in wettability to a molten salt by giving hydrophilicity to the resin sheet. In the case of a fluororesin sheet, the sheet is impregnated with water, and irradiated with ultraviolet rays so that C—F bonds in the fluororesin are cleaved and the resultant reacts with water to generate hydrophilic groups, such as OH groups, in each surface layer thereof. The separator gains hydrophilicity through the hydrophilic groups. The separator made of the resin can be made into a bag form. In a molten salt battery having the bag-form separator, the growth of a dendrite is prevented.

摘要翻译： 由多孔树脂片制成的熔盐电池的隔板。 通过赋予树脂片亲水性，隔膜对熔融盐的润湿性提高。 在氟树脂片的情况下，用水浸渍片材，并用紫外线照射，使氟树脂中的C-F键断开，并与水反应以在每个表面中产生诸如OH基团的亲水基团 层。 分离器通过亲水基团获得亲水性。 由树脂制成的隔板可以制成袋形。 在具有袋状分离器的熔盐电池中，防止枝晶的生长。

公开(公告)号：US20120171537A1

公开(公告)日：2012-07-05

申请号：US13420070

申请日：2012-03-14

申请人： Shoichiro Sakai ,  Masatoshi Majima ,  Koji Nitta ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Shinji Inazawa

发明人： Shoichiro Sakai ,  Masatoshi Majima ,  Koji Nitta ,  Chihiro Hiraiwa ,  Atsushi Fukunaga ,  Shinji Inazawa

IPC分类号： H01M10/39 ,  H01M10/36

CPC分类号： H01M10/0413 ,  B32B15/00 ,  B32B15/10 ,  H01M2/0217 ,  H01M2/0252 ,  H01M10/0431 ,  H01M10/0468 ,  H01M10/0481 ,  H01M10/399

摘要： Provided is a molten salt battery which can be stably charged and discharged. A separator 3 composed of a rectangular plate-shaped glass cloth and containing a molten salt is interposed between a positive electrode 1 and a negative electrode 2 having a rectangular plate shape to form a power generating element X. A battery container 5 is configured to be substantially rectangular parallelepiped-shaped. A non-flexible presser plate 4b pressed by a spring 4a arranged at a negative electrode 2 side in the battery container 5 substantially evenly disperses pressing force from the spring 4a and presses the negative electrode 2 downward. As a result of the reaction, a bottom wall 52 of the battery container presses the positive electrode 1 upward so that no dead space is generated even when a plurality of batteries are combined.

摘要翻译： 提供一种可以稳定地充放电的熔盐电池。 在正极1和矩形板状的负极2之间插入由矩形板状玻璃布构成的含有熔盐的隔板3，形成发电元件X.电池容器5构成为 大致长方体形。 由布置在电池容器5中的负极2侧的弹簧4a按压的非柔性压板4b基本上均匀地分散来自弹簧4a的按压力并将负极2向下压。 作为反应的结果，电池容器的底壁52向上按压正电极1，使得即使当多个电池组合时也不产生死区。

公开(公告)号：US20120129056A1

公开(公告)日：2012-05-24

申请号：US13226559

申请日：2011-09-07

申请人： Masatoshi Majima ,  Shinji Inazawa ,  Shoichiro Sakai ,  Koji Nitta ,  Atsushi Fukunaga ,  Chihiro Hiraiwa

发明人： Masatoshi Majima ,  Shinji Inazawa ,  Shoichiro Sakai ,  Koji Nitta ,  Atsushi Fukunaga ,  Chihiro Hiraiwa

IPC分类号： H01M10/056 ,  H01M4/40 ,  H01M4/134

CPC分类号： H01M10/054 ,  H01M4/04 ,  H01M4/0438 ,  H01M4/387 ,  H01M4/40 ,  H01M4/661 ,  H01M10/0566 ,  H01M10/399 ,  H01M2300/0045

摘要： In a molten salt battery 1, a positive electrode 2 including an active material film 22 arranged on an Al collector 21, a separator 3 formed of a glass cloth impregnated with a molten salt serving as an electrolyte, and a negative electrode 4 including an active material film 43 and a Zn film 42 arranged on an Al collector 41 are accommodated in an Al case 5. The active material film 43 contains an active material composed of a Sn—Na alloy. The active material film 22 and the active material film 43 occlude and emit Na ions of the molten salt. Thereby, provided are a negative electrode material for a battery, the negative electrode material having higher hardness on a surface side (active material side) than a Na negative electrode during the operation of the battery, suppressing the formation of Na dendrites.

摘要翻译： 在熔融盐电池1中，设置有设置在铝集电体21上的活性物质膜22的正极2，浸渍有作为电解质的熔融盐的玻璃布形成的隔板3和包含活性物质的负极4 配置在Al集电体41上的材料膜43和Zn膜42容纳在Al壳体5中。活性物质膜43含有由Sn-Na合金构成的活性物质。 活性物质膜22和活性物质膜43封闭并释放熔融盐的Na离子。 由此，作为电池用负极材料，负极材料在电池运转时，表面侧（活性物质侧）的硬度比Na负极高，抑制了Na枝晶的形成。

公开(公告)号：US20140170458A1

公开(公告)日：2014-06-19

申请号：US13989223

申请日：2011-11-07

申请人： Koji Nitta ,  Shinji Inazawa ,  Masatoshi Majima ,  Atsushi Yamaguchi ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Rika Hagiwara ,  Toshiyuki Nohira ,  Kazuhiko Matsumoto

发明人： Koji Nitta ,  Shinji Inazawa ,  Masatoshi Majima ,  Atsushi Yamaguchi ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Rika Hagiwara ,  Toshiyuki Nohira ,  Kazuhiko Matsumoto

IPC分类号： H01M10/39

CPC分类号： H01M10/399 ,  H01M2300/0048

摘要： 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.

摘要翻译： 熔融盐电池的分离器（3）浸渍有用作电解质的熔融盐。 作为阳离子，熔融盐除了季铵离子，咪唑鎓离子，咪唑啉鎓离子，吡啶鎓离子，吡咯烷鎓离子，哌啶鎓离子，吗啉鎓离子，鏻离子，哌嗪鎓离子和锍离子中外还含有至少一种离子 钠离子。 这些阳离子对正极没有不利影响（1）。 此外，含有钠离子和上述阳离子的熔融盐的熔点显着低于钠硫电池的工作温度，所述操作温度为280-360℃。因此，熔融盐 电池能够在低于钠硫电池的温度下工作。

公开(公告)号：US20120208079A1

公开(公告)日：2012-08-16

申请号：US13252290

申请日：2011-10-04

申请人： Shoichiro Sakai ,  Atsushi Fukunaga ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

发明人： Shoichiro Sakai ,  Atsushi Fukunaga ,  Koji Nitta ,  Masatoshi Majima ,  Shinji Inazawa

IPC分类号： H01M10/02 ,  B05D5/12 ,  H01M4/46 ,  H01M4/64 ,  H01M4/42

CPC分类号： H01M4/661 ,  H01M4/0438 ,  H01M4/38 ,  H01M4/667 ,  H01M10/3909 ,  H01M10/399

摘要： A negative electrode precursor material is provided for preparing a negative electrode, which has a reduced thickness, good current collecting performance, and suppresses deformation and generation of dendrites during operation. A molten salt battery comprises a positive electrode formed by providing an active material film on an Al current collector, a separator comprising a glass cloth impregnated with a molten salt as an electrolyte, and the negative electrode formed by providing a Zn film and an active material film on an Al, current collector, which are respectively contained in a substantially rectangular parallelepiped Al case. The active material absorbs and releases Na ions contained in the molten salt.

摘要翻译： 提供负极前体材料用于制备负极，其具有减小的厚度，良好的集流性能，并且在操作期间抑制变形和产生枝晶。 熔融盐电池包括通过在Al集电体上提供活性材料膜而形成的正极，包含浸渍有作为电解质的熔融盐的玻璃布的隔膜，以及通过提供Zn膜和活性物质形成的负极 Al集电体上的膜分别包含在大致长方体的Al壳中。 活性物质吸收并释放熔融盐中所含的Na离子。