公开(公告)号：US11329295B2

公开(公告)日：2022-05-10

申请号：US16627672

申请日：2019-04-25

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Koma Numata ,  Masatoshi Majima

IPC: H01M8/0232 ,  H01M8/0247

Abstract: A porous body with a framework having an integrally continuous, three-dimensional network structure, the framework comprising an outer shell and a core including one or both of a hollow or a conductive material, the outer shell including nickel and cobalt, the cobalt having a ratio in mass of 0.2 or more and 0.4 or less or 0.6 or more and 0.8 or less relative to the total mass of the nickel and the cobalt.

公开(公告)号：US20160079632A1

公开(公告)日：2016-03-17

申请号：US14784885

申请日：2014-03-03

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Atsushi Fukunaga ,  Shinji Inazawa ,  Koji Nitta ,  Shoichiro Sakai ,  Eiko Imazaki ,  Koma Numata

IPC: H01M10/39

CPC classification number: H01M10/399 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0045 ,  H01M2300/0048

Abstract: Provided are a molten-salt electrolyte having good charge-discharge cycle characteristics and a sodium molten-salt battery using the same. The molten-salt electrolyte contains an ionic liquid whose ultraviolet-visible absorption spectrum does not have an absorption peak attributable to impurities in a wavelength range of 200 to 500 nm, and a sodium salt. The sodium molten-salt battery includes a positive electrode that contains a positive electrode active material, a negative electrode that contains a negative electrode active material, and the molten-salt electrolyte. The ionic liquid is preferably a salt of an organic onium cation and a bis(sulfonyl)imide anion.

Abstract translation: 提供了具有良好的充放电循环特性的熔盐电解质和使用该熔融盐电解质的钠熔盐电池。 熔盐电解质含有其紫外可见吸收光谱不具有归属于200〜500nm波长范围的杂质的吸收峰的离子液体和钠盐。 钠熔融盐电池包括含有正极活性物质的正极，含有负极活性物质的负极和熔融盐电解质。 离子液体优选为有机鎓阳离子和双（磺酰基）酰亚胺阴离子的盐。

公开(公告)号：US10886531B2

公开(公告)日：2021-01-05

申请号：US15526707

申请日：2015-11-12

Applicant: Sumitomo Electric Industries, Ltd. ,  Nippon Soda Co., Ltd.

Inventor： Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Eiko Imazaki ,  Koma Numata ,  Hideaki Ito ,  Hitoshi Kobayashi ,  Toshiaki Yamashita ,  Shinichi Maruyama

IPC: H01M4/00 ,  H01M4/38 ,  H01G11/62 ,  H01G11/30 ,  H01G11/86 ,  H01M10/054 ,  H01G11/04 ,  H01M4/04 ,  H01M4/36 ,  H01M4/134 ,  H01M10/0566 ,  H01M4/1395 ,  H01M10/0564

Abstract: Provided is a method for producing a negative electrode for an electric storage device, the method comprising the steps of preparing a negative electrode composition comprising a negative electrode active material that reversibly carries a sodium ion, metal sodium, and a liquid dispersion medium for dispersing them; allowing a negative electrode current collector to hold the negative electrode composition; evaporating at least part of the liquid dispersion medium from the negative electrode composition held by the negative electrode current collector, thereby giving a negative electrode precursor comprising the negative electrode active material, the metal sodium, and the negative electrode current collector; and bringing the negative electrode precursor into contact with an electrolyte having sodium ion conductivity, thereby doping the negative electrode active material with sodium eluted from the metal sodium.

公开(公告)号：US20170110756A1

公开(公告)日：2017-04-20

申请号：US15317868

申请日：2015-06-03

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Eiko Imazaki ,  Koma Numata

IPC: H01M10/054 ,  H01M4/134 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505 ,  H01M4/40 ,  H01M4/131 ,  H01M4/133

CPC classification number: H01M10/054 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/40 ,  H01M4/42 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/587 ,  H01M10/0568 ,  H01M2220/20

Abstract: A sodium ion secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a separator provided between the positive electrode and the negative electrode, and an electrolyte, the positive electrode active material containing a sodium-containing transition metal oxide that reversibly intercalates and deintercalates sodium ions, in the sodium-containing transition metal oxide in a fully charged state, the ratio of sodium atoms to transition metal atoms, i.e., Na/MT, satisfying Na/MT≦0.3, and the ratio of the total Cnt of the reversible capacity and the irreversible capacity of the negative electrode to the total Cpt of the reversible capacity and the irreversible capacity of the positive electrode, i.e., Cnt/Cpt, satisfying 1≦Cnt/Cpt.

公开(公告)号：US09553336B2

公开(公告)日：2017-01-24

申请号：US14081649

申请日：2013-11-15

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Keiichiro Tanabe ,  Koma Numata ,  Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Eiko Itani ,  Shinji Inazawa

IPC: H02J7/00 ,  H01M10/36 ,  H02J7/32 ,  H01M10/054 ,  H01M10/0564 ,  H01M10/39

CPC classification number: H01M10/36 ,  H01M10/054 ,  H01M10/0564 ,  H01M10/399 ,  H01M2300/0045 ,  H01M2300/0048 ,  H02J7/0042 ,  H02J7/32

Abstract: Provided is a power supply system capable of being used in a well over a long period of time. A power supply system for a well according to the present invention includes a secondary battery having an operating temperature range including a temperature of the inside of a well and supplying power to a device installed in the well; and a charge-discharge mechanism for charging and discharging the secondary battery, and is installed in the well. The secondary battery to be used in the power supply system may be a molten salt battery, and may include a sensor and communication apparatus.

Abstract translation: 提供能够长时间在井中使用的电源系统。 根据本发明的用于井的电源系统包括二次电池，其具有包括井的内部的温度并且向安装在井中的装置供电的工作温度范围; 以及用于对二次电池进行充电和放电的充电 - 放电机构，并且安装在该阱中。 在电源系统中使用的二次电池可以是熔盐电池，并且可以包括传感器和通信装置。

公开(公告)号：US20160126599A1

公开(公告)日：2016-05-05

申请号：US14891626

申请日：2014-03-07

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Atsushi Fukunaga ,  Shinji Inazawa ,  Koji Nitta ,  Shoichiro Sakai ,  Eiko Imazaki ,  Koma Numata

IPC: H01M10/39 ,  H01M4/583

CPC classification number: H01M10/399 ,  H01M4/583 ,  H01M4/587 ,  H01M10/054 ,  H01M10/0566 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2300/0022 ,  H01M2300/0045 ,  H01M2300/0048

Abstract: Provided is a sodium molten-salt battery having good charge-discharge cycle characteristics. The sodium molten-salt battery includes a positive electrode that contains a positive electrode active material, a negative electrode that contains a negative electrode active material, and a molten-salt electrolyte that contains a sodium salt and an ionic liquid that dissolves the sodium salt. The negative electrode active material contains non-graphitizable carbon. The ionic liquid is a salt of a bis(sulfonyl)imide anion and a first onium cation that does not cause a Faradaic reaction with the non-graphitizable carbon. The molten-salt electrolyte contains a second onium cation in an amount of 1,000 ppm by mass or less. The second onium cation is represented by a general formula (1): R1R2R3R4N+ where R1 to R4 are each independently a hydrogen atom or a methyl group.

Abstract translation: 提供具有良好的充放电循环特性的钠熔盐电池。 钠熔融盐电池包括含有正极活性物质的正极，含有负极活性物质的负极和含有钠盐和溶解钠盐的离子液体的熔融盐电解质。 负极活性物质含有不可石墨化的碳。 离子液体是双（磺酰基）酰亚胺阴离子和不引起与非石墨化碳的法拉第反应的第一鎓阳离子的盐。 所述熔融盐电解质含有1000质量ppm以下的第二鎓阳离子。 第二鎓阳离子由通式（1）表示：R1R2R3R4N +，其中R1至R4各自独立地为氢原子或甲基。

公开(公告)号：US20150229004A1

公开(公告)日：2015-08-13

申请号：US14414748

申请日：2013-07-02

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Koma Numata ,  Shinji Inazawa ,  Koji Nitta ,  Shoichiro Sakai ,  Atsushi Fukunaga ,  Eiko Itani

IPC: H01M10/0568 ,  H01M10/054 ,  H02J7/00 ,  H01M2/16 ,  H01M4/62 ,  H01M4/40 ,  H01M4/583

CPC classification number: H01M10/0568 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1653 ,  H01M4/40 ,  H01M4/485 ,  H01M4/583 ,  H01M4/587 ,  H01M4/622 ,  H01M10/054 ,  H01M10/0561 ,  H01M10/399 ,  H01M2220/10 ,  H01M2300/002 ,  H01M2300/0025 ,  H02J7/0052

Abstract: A heat resistant battery includes a positive electrode including a positive electrode current collector and a positive electrode active material fixed on the positive electrode current collector, wherein the positive electrode active material includes a sodium-containing transition metal compound capable of electrochemically storing and releasing a sodium ion; a negative electrode including a negative electrode current collector and a negative electrode active material fixed on the negative electrode current collector, wherein the negative electrode active material contains at least one selected from the group consisting of a sodium-containing titanium compound and a non-graphitizable carbon, each of the sodium-containing titanium compound and the non-graphitizable carbon capable of storing and releasing a sodium ion at a lower potential than a potential of the sodium-containing transition metal compound; and a sodium ion-conductive electrolyte provided at least between the positive electrode and the negative electrode, wherein the sodium ion-conductive electrolyte includes a salt of an organic cation having a pyrrolidinium skeleton and a bis(perfluoroalkyl sulfonyl)imide anion.

Abstract translation: 耐热性电池包括固定在正极集电体上的正极集电体和正极活性物质的正极，其中，所述正极活性物质包含能够电化学储存和释放钠的含钠过渡金属化合物 离子; 固定在负极集电体上的负极集电体和负极活性物质的负极，其中负极活性物质含有选自含钛的钛化合物和不可石墨化的化合物中的至少一种 碳，能够以比含钠过渡金属化合物的电位低的电位存储和释放钠离子的每种含钠钛化合物和不可石墨化碳; 和至少设置在正极和负极之间的钠离子传导电解质，其中钠离子导电电解质包括具有吡咯烷骨架的有机阳离子和双（全氟烷基磺酰基）酰亚胺阴离子的盐。

公开(公告)号：US20140285153A1

公开(公告)日：2014-09-25

申请号：US14352673

申请日：2012-09-28

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD ,  Kyoto University

Inventor： Atsushi Fukunaga ,  Shinji Inazawa ,  Koji Nitta ,  Shoichiro Sakai ,  Koma Numata ,  Toshiyuki Nohira ,  Rika Hagiwara ,  Takayuki Yamamoto

IPC: H02J7/00 ,  H01M10/36

CPC classification number: H02J7/00 ,  H01M4/381 ,  H01M4/387 ,  H01M10/36 ,  H01M10/399 ,  H01M2300/0022

Abstract: Provided is a method for operating a molten salt battery having a sodium compound (NaCrO2) in a positive electrode and tin (Sn) in a negative electrode with a molten salt as an electrolytic solution. Although the operating temperature range of the molten salt battery is originally from 57° C. to 190° C., the molten salt battery is operated with an internal temperature thereof (temperature of electrodes and molten salt) set at from 98° C. to 190° C. to cause sodium to turn to a liquid phase. The sodium penetrates into a Sn—Na alloy micronized in the negative electrode, so that separation of the Sn—Na alloy is suppressed.

Abstract translation: 本发明提供一种在熔融盐中作为电解液操作在正极中具有钠化合物（NaCrO 2）和负极中的锡（Sn）的熔盐电池的方法。 尽管熔盐电池的工作温度范围最初为57℃至190℃，但熔盐电池的内部温度（电极和熔融盐的温度）设定在98℃至 使钠转化为液相。 钠渗透到负极中微粉化的Sn-Na合金中，从而抑制Sn-Na合金的分离。

公开(公告)号：US11996589B2

公开(公告)日：2024-05-28

申请号：US17270656

申请日：2019-07-25

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Chihiro Hiraiwa ,  Mitsuyasu Ogawa ,  Takahiro Higashino ,  Koma Numata ,  Masatoshi Majima

IPC: H01M8/0232 ,  H01M8/0241 ,  H01M8/0247 ,  H01M8/12

CPC classification number: H01M8/0232 ,  H01M8/0241 ,  H01M8/0247 ,  H01M8/12

Abstract: A fuel cell includes: a cell structure body including a cathode, an anode, and a solid electrolyte layer interposed between the cathode and the anode; and a current collector in contact with the cathode, wherein an oxidant is supplied to the cathode through the current collector, the current collector includes a porous body made of a metal material, and a chromium adsorbent carried inside pores of the porous body, the metal material includes a first metal and a second metal, the first metal includes nickel, and the second metal includes at least one selected from the group made of tin, aluminum, cobalt, titanium, manganese, tungsten, copper, silver, and gold.

公开(公告)号：US11984627B2

公开(公告)日：2024-05-14

申请号：US17270600

申请日：2019-07-25

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Chihiro Hiraiwa ,  Mitsuyasu Ogawa ,  Takahiro Higashino ,  Masatoshi Majima ,  Koma Numata

IPC: H01M8/0662 ,  B01J20/04 ,  B01J20/28 ,  B01J20/32 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/0258 ,  H01M8/12

CPC classification number: H01M8/0662 ,  B01J20/041 ,  B01J20/28042 ,  B01J20/28054 ,  B01J20/28085 ,  B01J20/3204 ,  B01J20/3236 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/0258 ,  H01M8/12 ,  H01M2008/1293

Abstract: Provided is a chromium adsorption material including: a porous body made of a metal material; and a chromium adsorbent carried inside pores of the porous body, wherein the metal material includes a first metal and a second metal, the first metal includes nickel, and the second metal includes at least one selected from the group consisting of tin, aluminum, cobalt, titanium, manganese, tungsten, copper, silver, and gold.