WO2013051385A1 - Cellule d'ensemble sel fondu de secours et son procédé d'utilisation et dispositif d'alimentation électrique de secours - Google Patents

Cellule d'ensemble sel fondu de secours et son procédé d'utilisation et dispositif d'alimentation électrique de secours Download PDF

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Publication number
WO2013051385A1
WO2013051385A1 PCT/JP2012/073599 JP2012073599W WO2013051385A1 WO 2013051385 A1 WO2013051385 A1 WO 2013051385A1 JP 2012073599 W JP2012073599 W JP 2012073599W WO 2013051385 A1 WO2013051385 A1 WO 2013051385A1
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WO
WIPO (PCT)
Prior art keywords
molten salt
battery
emergency
heating device
starting
Prior art date
Application number
PCT/JP2012/073599
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English (en)
Japanese (ja)
Inventor
新田　耕司
稲澤　信二
将一郎 酒井
篤史 福永
Original Assignee
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to KR1020137017371A priority Critical patent/KR20140073460A/ko
Publication of WO2013051385A1 publication Critical patent/WO2013051385A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
    • H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
    • H01M10/399—Cells with molten salts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a molten salt battery, that is, a battery using molten salt as an electrolyte.
  • a type using a battery mainly uses a lead storage battery or a lithium ion battery (see, for example, Patent Document 1).
  • an object of the present invention is to provide a battery and an emergency power supply that can be stored maintenance-free and can be used in an emergency such as a power failure.
  • the present invention is an emergency molten salt assembled battery which is configured by collecting a plurality of molten salt batteries containing a molten salt as an electrolyte, and is stored in a state where the electrolyte is solidified after charging, Molten salt battery, a first heating device for heating the plurality of operational molten salt batteries, at least one starting molten salt battery capable of operating the first heating device, and the starting It is provided at the battery container of the molten salt battery for use, and is a room temperature body that maintains the electrolyte of the molten salt battery for starting at a temperature lower than the melting point when not in operation. And a second heating device for starting.
  • the electrolyte is maintained at a temperature lower than the melting point by not operating the first and second heating devices except for emergency use. Does not progress.
  • the second heating device becomes a heating body, and the temperature of the molten salt battery for starting is set to a temperature equal to or higher than the melting point.
  • the first heating device is operated by the electric energy to heat the molten salt battery for actual operation, so that the entire assembled battery can be used. it can. Therefore, it is possible to provide an emergency molten salt assembled battery that can normally store each battery without discharging it and output a desired voltage / current in an emergency.
  • the second heating device may be an outer container for the battery container and capable of introducing a heat medium.
  • the second heating device is maintained at room temperature in the absence of a heat medium, and the second heat device is introduced by introducing the heat medium.
  • the heating device can be changed to a heating body. That is, the starting molten salt battery can be easily used, for example, by injecting hot water, injecting water and then heating, or passing hot air as the heat medium. Since introduction of such a heat medium is possible even at the time of a power failure, it is suitable for starting a molten salt battery in an emergency.
  • the second heating device is a seal in which a substance capable of generating heat due to a chemical reaction prevents a chemical reaction from starting in a case covering the battery container. And may be enclosed.
  • the second heating device is maintained at room temperature in a state where the seal is provided, and the second heating is performed by removing the seal. The device can be changed to a heating element. In the second heating device in this case, the chemical reaction is started and heat is generated by removing the seal, so that the starting molten salt battery can be easily used. Since the second heating device used in this manner can generate heat without depending on external energy, it is suitable for starting a molten salt battery in an emergency.
  • the second heating device may be provided on the outer surface of the battery container and heated by a general-purpose battery.
  • the second heating device generates heat by connecting a general-purpose battery such as a dry battery that is widely used and easy to use, and thus the molten salt battery for starting can be easily used.
  • a general-purpose battery such as a dry battery that is widely used and easy to use
  • Such a second heating device can generate heat even during a power failure, and is therefore suitable for starting a molten salt battery in an emergency.
  • the second heating device includes a device that condenses and heats sunlight directly or indirectly on the outer surface of the battery container. May be. In this case, the second heating device heats the battery container simply by applying sunlight, and can easily use the starting molten salt battery. Since such a second heating device uses natural energy, it is suitable for starting a molten salt battery in an emergency.
  • the emergency molten salt assembled battery of any one of (1), (2), (4), (6), (7) and the voltage output from the emergency molten salt assembled battery are: It is possible to provide an emergency power supply device including an inverter device for converting into commercial AC voltage. Such an emergency power supply device can supply power with the same AC voltage as the commercial AC voltage in the event of a power failure due to a disaster or the like.
  • an emergency molten salt assembled battery that can be stored in a maintenance-free manner and can be used in an emergency such as a power failure, and an emergency power supply device using the same.
  • FIG. 1 is a schematic diagram showing in principle the basic structure of a power generation element in a molten salt battery. It is a perspective view which shows simply the lamination structure of a molten salt battery main body (main-body part as a battery). It is a cross-sectional view about the structure similar to FIG. It is a perspective view which shows the outline of the external appearance of the molten salt battery of the state accommodated in the battery container. It is a perspective view which shows schematic structure of the emergency molten salt assembled battery which concerns on one Embodiment of this invention.
  • FIG. 6 is a wiring diagram for starting the emergency molten salt assembled battery shown in FIG. 5. It is sectional drawing of the outer container (1st example of the heating apparatus for starting) of the molten salt battery for starting.
  • an emergency molten salt assembled battery (including a method of use) according to an embodiment of the present invention and an emergency power supply device using the same will be described with reference to the drawings.
  • secondary batteries with excellent energy density for example, lithium ion batteries, sodium sulfur batteries, and nickel metal hydride batteries are known, but in recent years, secondary batteries have a strong advantage of nonflammability in addition to high energy density.
  • a molten salt battery using a molten salt as an electrolyte has been developed.
  • the operating temperature range of the molten salt battery is 57 ° C. to 190 ° C., which is a wider temperature range than the other batteries described above. Therefore, there is no need for equipment such as exhaust heat space or fire prevention, and there is an advantage that even if individual unit cells are gathered at a high density to form an assembled battery, it is relatively compact as a whole. Such a molten salt assembled battery is suitable for power storage use at home. Further, the molten salt battery is solidified because it does not reach 57 ° C., which is the melting point of the electrolyte, at room temperature. When solidified, it does not function as a battery and does not self-discharge.
  • FIG. 1 is a schematic diagram showing in principle the basic structure of a power generation element in a molten salt battery.
  • the power generation element includes a positive electrode 1, a negative electrode 2, and a separator 3 interposed therebetween.
  • the positive electrode 1 is composed of a positive electrode current collector 1a and a positive electrode material 1b.
  • the negative electrode 2 includes a negative electrode current collector 2a and a negative electrode material 2b.
  • the material of the positive electrode current collector 1a is, for example, an aluminum nonwoven fabric (wire diameter: 100 ⁇ m, porosity: 80%).
  • the positive electrode material 1b is a mixture of, for example, NaCrO 2 as a positive electrode active material, acetylene black, PVDF (polyvinylidene fluoride), and N-methyl-2-pyrrolidone in a mass ratio of 85: 10: 5: 50. It is a thing. And what was kneaded in this way is filled in the positive electrode collector 1a of an aluminum nonwoven fabric, and after drying, it presses at 1000 kgf / cm ⁇ 2 >, and it forms so that the thickness of the positive electrode 1 may be set to about 1 mm.
  • an Sn—Na alloy containing, for example, tin as a negative electrode active material is formed on the negative electrode current collector 2a made of aluminum by plating.
  • the separator 3 interposed between the positive electrode 1 and the negative electrode 2 is obtained by impregnating a glass non-woven fabric (thickness: 200 ⁇ m) with a molten salt as an electrolyte.
  • This molten salt is, for example, a mixture of NaFSA (sodium bisfluorosulfonylamide) 0.45 mol% and KFSA (potassium bisfluorosulfonylamide) 0.55 mol%, and the melting point is 57 ° C.
  • the molten salt melts and becomes an electrolytic solution in which high-concentration ions are dissolved, and touches the positive electrode 1 and the negative electrode 2.
  • this molten salt is nonflammable.
  • the operating temperature range of this molten salt battery is 57 ° C. to 190 ° C., and is normally used while maintaining the temperature at 85 ° C. to 95 ° C.
  • a mixture of LiFSA-KFSA-CsFSA is also suitable as the molten salt.
  • other salts may be mixed (such as organic cations).
  • a mixture containing NaFSA or LiFSA or (b) a mixture containing NaTFSA or LiTFSA is suitable as the molten salt. .
  • the molten salt battery can be operated with a small amount of heating.
  • FIG. 2 is a perspective view schematically showing a laminated structure of a molten salt battery main body (main body portion as a battery) 10, and FIG. 3 is a cross-sectional view of the same structure. 2 and 3, a plurality (six are shown) of rectangular flat plate-like negative electrodes 2 and a plurality (five are shown) of rectangles accommodated in a bag-like separator 3 respectively.
  • the flat positive electrodes 1 are opposed to each other and are stacked in the vertical direction in FIG. 3, that is, in the stacking direction, to form a stacked structure.
  • the separator 3 is interposed between the positive electrode 1 and the negative electrode 2 adjacent to each other.
  • the positive electrode 1 and the negative electrode 2 are alternately stacked via the separator 3.
  • the separator 3 is not limited to a bag shape, and may be 40 separated.
  • the separator 3 and the negative electrode 2 are drawn so as to be separated from each other, but they are in close contact with each other when the molten salt battery is completed.
  • the positive electrode 1 is also in close contact with the separator 3.
  • the vertical and horizontal dimensions of the positive electrode 1 are smaller than the vertical and horizontal dimensions of the negative electrode 2 in order to prevent the generation of dendrites, and the outer edge of the positive electrode 1 passes through the separator 3. Thus, it faces the peripheral edge of the negative electrode 2.
  • FIG. 4 is a perspective view showing an outline of the appearance of the molten salt battery B in a state of being housed in such a battery container 11. 2 and 3, terminals 1p and 1n are drawn out of the battery case 11 from the positive electrode 1 and the negative electrode 2, respectively, while being insulated from the battery case 11. Further, a safety valve 12 for releasing the pressure when the internal atmospheric pressure rises excessively is provided at the upper part of the battery container 11. In addition, the inner surface of the battery container 11 is subjected to insulation treatment, and the battery container 11 is electrically insulated from the internal electrolyte.
  • the individual shape of the molten salt battery B shown in FIG. 4 is merely an example, and the shape and dimensions can be arbitrarily configured.
  • the molten salt battery B as described above can be used in a state where a plurality of batteries are gathered together and connected in series or in series and parallel to form a battery pack in order to obtain a voltage and current capacity necessary for the application.
  • FIG. 5 is a perspective view showing a schematic structure of an emergency molten salt assembled battery according to an embodiment of the present invention.
  • the molten salt battery is composed of a plurality of actual operational molten salt batteries B1 and at least one starting molten salt battery B2.
  • a heating device 14 (first heating device) is interposed between adjacent molten salt batteries B1 for actual operation.
  • the starting molten salt battery B ⁇ b> 2 is accommodated in the outer container 13. 5 may be accommodated in a case (not shown).
  • FIG. 6 is a wiring diagram for starting the emergency molten salt assembled battery shown in FIG. 5 (not shown in FIG. 5). Note that the output wiring of the molten salt battery B1 for actual operation is not shown.
  • the terminal 1p of the starting molten salt battery B2 is connected to one terminal via a switch 15 to a plurality of heating devices 14 connected in parallel to each other.
  • the terminal 1n of the starting molten salt battery B2 is connected to the other terminal of the plurality of heating devices 14 connected in parallel to each other.
  • FIG. 7 is a cross-sectional view of the outer container 13 of the starting molten salt battery B2.
  • support portions 13 s are provided on the bottom surface, front surface / rear surface, and both side surfaces of the inner surface of the outer container 13.
  • the support portion 13s supports the starting molten salt battery B2, and does not hinder the flow of water between the outer container 13 and the starting molten salt battery B2.
  • the outer container 13 In a state where water (hot water) is not contained, the outer container 13 is not particularly meaningful, and the battery container 11 is at room temperature (room temperature). Therefore, the starting molten salt battery B2 is in a sleep state as a battery and does not self-discharge.
  • the electrolyte of the molten salt battery B1 for actual operation is melted and can be used as a battery.
  • a temperature equal to or higher than the melting point can be maintained due to heat generated by discharge, and therefore the molten salt battery B1 for actual operation.
  • the switch 15 may be opened. Note that the switch 15 is not necessarily required, and may be directly connected without a switch.
  • the outer container 13 provided in association with the battery container 11 of the starting molten salt battery B2 is a starting heating device (second heating device) 100, and is in a normal state without hot water ( In other words, when the heating is not in operation, it is a room temperature body that maintains the electrolyte of the starting molten salt battery B2 at a temperature below the melting point, and becomes a heating body of the battery container 11 by pouring hot water (that is, during the heating operation). ).
  • the electrolyte since the electrolyte is maintained at a temperature lower than the melting point in normal cases (without hot water) other than in an emergency, the discharge of the battery does not proceed. Therefore, if the electrolyte is solidified after the molten salt batteries B1 and B2 are fully charged in advance, there is no need to charge them again unless they are used.
  • the molten salt battery B2 for starting will be in a usable state by making the electrolyte of the molten salt battery B2 for starting into temperature more than melting
  • the electric energy may be used to heat the operating molten salt battery B1 using the heating device 14 so that the entire assembled battery can be used. it can. Therefore, it is possible to provide an emergency molten salt assembled battery that can normally store each battery without discharging it and output a desired voltage / current in an emergency. That is, such an emergency molten salt assembled battery can be stored maintenance-free and can be used in an emergency such as a power failure.
  • the starting molten salt battery B2 can be easily used. Since introduction of such a heat medium is possible even at the time of a power failure, it is suitable for starting a molten salt battery in an emergency.
  • the metal outer container 13 filled with water may be heated by burning fuel to make the water hot water.
  • FIG. 8 is a cross-sectional view showing an outer container 15 as a second example of the starting heating device 100.
  • a support portion 15s is provided on the inner surface of the outer container 15 as in the first example (FIG. 7).
  • an opening 15a is provided and a hose 16 for sending hot air is connected. That is, the molten salt battery for start-up B2 can be similarly used by sending hot air instead of hot water. If hot air is not supplied, the battery container 11 is at room temperature (room temperature), and the starting molten salt battery B2 does not function as a battery and does not self-discharge.
  • FIG. 9 is a cross-sectional view showing a third example of the starting heating device 100.
  • the starting molten salt battery B2 is covered with a case 17 except for the upper surface.
  • a powdery material 18 in which iron powder, salt, activated carbon, water, and vermiculite are mixed is enclosed in a state where oxygen is removed.
  • the case 17 is provided with a large number of small holes, and a seal 19 is attached so as to close the holes. Normally, the powdery body 18 stored and sealed in this state does not come into contact with air.
  • the powdery body 18 comes into contact with air through the hole, and heat is generated by oxidation of iron (the principle of disposable body warmers).
  • the molten salt battery B2 for starting can be heated and used more than melting
  • a substance that reacts with water such as magnesium oxide or calcium oxide to generate heat is sealed in a state separated from water by a seal, and reacted with water by removing or breaking the seal. It can also generate heat.
  • the chemical reaction is started and heat is generated by removing the seal 19, so that the starting molten salt battery B2 can be easily used. Since the starting heating device 100 can generate heat without depending on external energy, it is suitable for starting a molten salt battery in an emergency. In this case, since the starting heating device 100 cannot be reused, it is necessary to replace the entire or part of the starting heating device 100 once used.
  • FIG. 10 is a cross-sectional view showing a fourth example of the starting heating device 100.
  • a sheet-like heater 20 is wound around the outer surface of the starting molten salt battery B2.
  • a power supply line to the heater 20 is connected to a battery holder 21 to which a predetermined number of dry batteries 22 can be mounted, for example. Normally, the dry battery 22 is not attached. However, if the heater 20 is energized by attachment, the starting molten salt battery B2 can be heated to the melting point or higher to be usable.
  • a lithium ion battery or other general-purpose battery used for a mobile phone or a digital camera may be used.
  • the starting heating device 100 generates heat by connecting a general-purpose battery that is widespread and easy to use. Therefore, the starting molten salt battery can be easily used. Since such a starting heating device can generate heat even during a power failure, it is suitable for starting a molten salt battery in an emergency.
  • FIG. 11 is a schematic diagram showing a fifth example of the starting heating device 100.
  • This starting heating device 100 condenses sunlight by the condensing device 23 provided with the condensing lens 23L, and attempts to heat the starting molten salt battery B2 via the heat absorbing plate 24 excellent in heat ray absorption. It is the structure to do. In this case, the starting heating device 100 heats the battery container 11 only by being exposed to sunlight, and can easily use the starting molten salt battery B2.
  • Such a starting heating device 100 uses natural energy and is suitable for starting a molten salt battery in an emergency.
  • FIG. 12 is a block diagram showing an emergency power supply apparatus 400 mainly for home use.
  • the DC voltage output from the emergency molten salt assembled battery 200 including the starting molten salt battery B2 provided with any of the above-described starting heating devices 100 is converted into AC 100V by the inverter device 300.
  • a control power supply voltage for driving the inverter device 300 can also be provided from the emergency molten salt assembled battery 200.
  • Such an emergency power supply apparatus 400 can supply power with the same AC voltage as the commercial AC voltage in the event of a power failure due to a disaster or the like.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Battery Mounting, Suspending (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

La présente invention a trait à une cellule d'ensemble sel fondu de secours qui comprend un groupement d'une pluralité de cellules de sel fondu contenant du sel fondu en tant qu'électrolyte, l'électrolyte étant stocké à l'état solidifié après la charge ; laquelle cellule d'ensemble sel fondu de secours est dotée : d'une pluralité de cellules de sel fondu pour le fonctionnement principal ; d'un dispositif de chauffage (premier dispositif de chauffage) permettant de chauffer les cellules de sel fondu pour le fonctionnement principal ; d'au moins une cellule de sel fondu de démarrage qui est en mesure d'actionner le dispositif de chauffage ; et d'un dispositif de chauffage de démarrage (second dispositif de chauffage). Le dispositif de chauffage de démarrage est prévu de manière à accompagner le récipient de cellule de la cellule de sel fondu de démarrage. Lorsqu'il n'est pas en fonctionnement, le dispositif de chauffage de démarrage est un corps à température régulière permettant de maintenir l'électrolyte de la cellule de sel fondu de démarrage à une température inférieure au point de fusion de l'électrolyte, mais, lorsqu'il est en fonctionnement, le dispositif de chauffage de démarrage est un corps chauffant permettant de chauffer le récipient de cellule.
PCT/JP2012/073599 2011-10-05 2012-09-14 Cellule d'ensemble sel fondu de secours et son procédé d'utilisation et dispositif d'alimentation électrique de secours WO2013051385A1 (fr)

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KR1020137017371A KR20140073460A (ko) 2011-10-05 2012-09-14 비상용 용융염 조전지 및 그 사용 방법과 비상용 전원 장치

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JP2011221066A JP2013080663A (ja) 2011-10-05 2011-10-05 非常用溶融塩組電池及びその使用方法並びに非常用電源装置
JP2011-221066 2011-10-05

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JP6387609B2 (ja) * 2013-12-09 2018-09-12 日産自動車株式会社 電池システム
WO2020178946A1 (fr) * 2019-03-04 2020-09-10 東光鉄工株式会社 Marqueur de reconnaissance et véhicule volant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08138732A (ja) * 1994-11-10 1996-05-31 Mitsubishi Heavy Ind Ltd ナトリウムを用いた二次電池
JP2010051074A (ja) * 2008-08-20 2010-03-04 Ngk Insulators Ltd ナトリウム−硫黄電池のヒータ電力供給方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08138732A (ja) * 1994-11-10 1996-05-31 Mitsubishi Heavy Ind Ltd ナトリウムを用いた二次電池
JP2010051074A (ja) * 2008-08-20 2010-03-04 Ngk Insulators Ltd ナトリウム−硫黄電池のヒータ電力供給方法

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KR20140073460A (ko) 2014-06-16

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