WO2021106242A1 - 電池 - Google Patents

電池 Download PDF

Info

Publication number
WO2021106242A1
WO2021106242A1 PCT/JP2020/016398 JP2020016398W WO2021106242A1 WO 2021106242 A1 WO2021106242 A1 WO 2021106242A1 JP 2020016398 W JP2020016398 W JP 2020016398W WO 2021106242 A1 WO2021106242 A1 WO 2021106242A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
solid electrolyte
electrode
current collector
terminal portion
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/016398
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
岩本　和也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to JP2021561149A priority Critical patent/JP7580056B2/ja
Priority to CN202080070516.7A priority patent/CN114586212A/zh
Publication of WO2021106242A1 publication Critical patent/WO2021106242A1/ja
Priority to US17/661,715 priority patent/US12315888B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
    • H01M10/0562—Solid materials
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present disclosure relates to a battery containing a solid electrolyte.
  • the battery is disassembled, then the positive electrode and the negative electrode are separated, and the electrical characteristics (for example, charge / discharge characteristics or impedance) of each of the positive electrode and the negative electrode are measured. Analysis or analysis by inserting a reference electrode and measuring the behavior of the positive electrode and the negative electrode using the reference electrode is performed.
  • a solid electrolyte for example, an all-solid-state battery
  • the positive electrode layer, the solid electrolyte layer, and the negative electrode layer are manufactured so as to be integrated, the positive electrode layer and the negative electrode layer are separated without being destroyed. Can not do it.
  • the reference electrode functions if it is immersed in the electrolytic solution, so the location where the reference electrode is installed can be set "almost" arbitrarily.
  • the reference electrode cannot be arbitrarily installed outside the power generation element composed of the positive electrode layer, the solid electrolyte layer, and the negative electrode layer.
  • Patent Document 1 discloses a configuration in which a third electrode (reference electrode) is inserted in the solid electrolyte "inside the layer" in advance.
  • Patent Document 2 discloses that a third electrode (reference electrode) is provided after pressure-welding a solid electrolyte to the peripheral edge of a powder compression type all-solid-state battery.
  • the present disclosure provides a battery in which a reference electrode can be easily installed.
  • the battery according to one aspect of the present disclosure includes a first electrode layer, a solid electrolyte layer located above the first electrode layer, and a second electrode layer located above the solid electrolyte layer.
  • the first electrode layer has a first current collector and a first mixture layer located between the first current collector and the solid electrolyte layer, and the first current collector has an upper surface.
  • the solid electrolyte layer has a terminal portion protruding from the second electrode layer, and the solid electrolyte layer is exposed to at least a part of the terminal portion when viewed from above. It covers a part of the side surface of the first mixture layer in a cross-sectional view, and is in contact with the first current collector at the terminal portion.
  • FIG. 1 is a top view showing a schematic configuration of the battery according to the first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
  • FIG. 3 is a top view for explaining a step of forming a terminal portion on the first current collector in the method for manufacturing a battery according to the first embodiment.
  • FIG. 4 is a top view for explaining a state in which a terminal portion is formed on the first current collector in the method for manufacturing a battery according to the first embodiment.
  • FIG. 5 is a cross-sectional view taken along the line VV of FIG.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. FIG.
  • FIG. 7 is a top view for explaining a step of manufacturing the second electrode layer in the battery manufacturing method according to the first embodiment.
  • FIG. 8 is a cross-sectional view showing a schematic configuration of the battery according to the first modification of the first embodiment.
  • FIG. 9 is a cross-sectional view showing a schematic configuration of the battery according to the second modification of the first embodiment.
  • FIG. 10 is a top view showing a schematic configuration of the battery according to the third modification of the first embodiment.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG.
  • FIG. 12 is a top view showing a schematic configuration of the battery according to the second embodiment.
  • FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG.
  • the present inventors have found that there are the following problems when the reference electrode is installed in a battery containing a solid electrolyte, particularly a thin laminated all-solid-state battery.
  • Patent Document 1 since the reference electrode is inserted and embedded in the solid electrolyte layer, the conduction path (flow path) of lithium ions is obstructed. Further, since the third electrode is inserted and embedded in the solid electrolyte layer, the solid electrolyte layer cannot be thinned. Further, since the positive electrode or the negative electrode and the reference electrode are separated from each other by a thin solid electrolyte layer, the positive electrode or the negative electrode and the reference electrode may be short-circuited. As described above, the structure of Patent Document 1 has the above-mentioned problems.
  • Patent Document 2 is in the case of a thin laminated all-solid-state battery such as a thin-film all-solid-state battery using a vacuum process or an all-solid-state battery produced by applying and drying a slurry using a binder. Because the solid electrolyte layer is thin and brittle, it is difficult to support the reference electrode by the solid electrolyte layer. Therefore, the solid electrolyte layer near the reference electrode is easily damaged, and it is not easy to install the reference electrode. Further, when the solid electrolyte layer is damaged, the reference electrode provided on the solid electrolyte layer may come into contact with other power generation elements to cause a short circuit, and the safety of the battery is lowered. Ensuring the safety of the battery is important, and when the safety of the battery is lowered in this way, the reference electrode cannot be easily installed.
  • the present disclosure provides an all-solid-state battery, particularly a thin laminated all-solid-state battery in which a reference electrode can be easily installed.
  • the battery according to one aspect of the present disclosure includes a first electrode layer, a solid electrolyte layer located above the first electrode layer, and a second electrode layer located above the solid electrolyte layer.
  • the first electrode layer has a first current collector and a first mixture layer located between the first current collector and the solid electrolyte layer, and the first current collector has an upper surface.
  • the solid electrolyte layer has a terminal portion protruding from the second electrode layer, and the solid electrolyte layer is exposed to at least a part of the terminal portion when viewed from above. It covers a part of the side surface of the first mixture layer in a cross-sectional view, and is in contact with the first current collector at the terminal portion. As an example, in the cross-sectional view, a part of the side surface of the first mixture layer faces the terminal portion.
  • the solid electrolyte layer has a region that protrudes from the second electrode layer and is exposed above the terminal portion when viewed from above. Therefore, the reference electrode can be provided on the exposed region of the solid electrolyte layer. That is, the reference electrode can be provided without newly providing the terminal structure for installing the dedicated reference electrode in the battery, and the function of the reference electrode can be imparted to the battery. Further, since the exposed region of the solid electrolyte layer is supported by the terminal portion of the first current collector, the solid electrolyte layer is less likely to be damaged. Further, since the reference electrode does not need to be inserted between the first electrode layer and the second electrode layer, a short circuit between the reference electrode and the first electrode layer or the second electrode layer is suppressed.
  • the reference electrode can be easily installed. Further, the side surface of the first mixture layer on the terminal side is covered with the solid electrolyte layer. Therefore, when the reference electrode is provided in the region exposed above the terminal portion of the solid electrolyte layer, a short circuit due to the reference electrode coming into contact with the first mixture layer is suppressed.
  • a part of the first mixture layer may be located on the terminal portion, and the solid electrolyte layer may cover the entire upper surface of the first mixture layer.
  • the upper surface of the first mixture layer is not exposed. Therefore, when the reference electrode is provided in the solid electrolyte layer above the first mixture layer, a short circuit due to the reference electrode coming into contact with the first mixture layer is suppressed.
  • the second electrode layer has a second current collector and a second mixture layer located between the second current collector and the solid electrolyte layer, and the solid electrolyte layer. May cover the entire lower surface of the second mixture layer, cover a part of the side surface of the second mixture layer in the cross-sectional view, and come into contact with the second current collector. As an example, in the cross-sectional view, a part of the side surface of the second mixture layer faces toward the terminal portion.
  • the lower surface of the second mixture layer and the side surface on the terminal side are covered with the solid electrolyte layer. Therefore, when the reference electrode is provided in the region exposed above the terminal portion of the solid electrolyte layer, a short circuit due to the reference electrode coming into contact with the second mixture layer is suppressed.
  • the second electrode may have a rectangular region that is rectangular in the top view, and the terminal portion may protrude from a part of the side in the rectangular region in the top view.
  • the reference electrode can be easily installed while suppressing the decrease in the weight energy density of the battery.
  • the battery may further include an electrode, and the electrode may be in contact with the solid electrolyte layer in the region.
  • the electrode is provided on the exposed region of the solid electrolyte layer of the battery, so that the electrode can be easily installed. Therefore, when the electrode functions as a reference electrode, a battery having the function of the reference electrode is realized without installing a new reference electrode in the battery.
  • the solid electrolyte layer may contain a solid electrolyte having lithium ion conductivity.
  • the reference electrode can be easily installed in the lithium ion battery containing the solid electrolyte.
  • each figure is not necessarily exactly illustrated.
  • substantially the same configurations are designated by the same reference numerals, and duplicate description will be omitted or simplified.
  • the x-axis, y-axis, and z-axis indicate the three axes of the three-dimensional Cartesian coordinate system.
  • the z-axis direction is the thickness direction of the battery.
  • the positive direction of the z-axis is the upper side in the z-axis direction
  • the negative direction of the z-axis is the lower side in the z-axis direction.
  • the "thickness direction" is a direction perpendicular to the surface on which each layer is laminated.
  • top view means a case where the battery is viewed from the upper side in the z-axis direction along the z-axis.
  • the terms “upper” and “lower” in the battery configuration do not refer to the upward direction (vertically upward) and the downward direction (vertically downward) in absolute space recognition, but in the laminated configuration. It is used as a term defined by the relative positional relationship based on the stacking order. Also, the terms “upper” and “lower” are used not only when the two components are spaced apart from each other and another component exists between the two components, but also when the two components It also applies when the two components are placed in close contact with each other and touch each other.
  • FIG. 1 is a top view showing a schematic configuration of the battery 100 according to the present embodiment.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
  • FIG. 2 shows a cross section of a region of the battery 100 including the terminal portion 13.
  • the battery 100 includes a first electrode layer 10, a solid electrolyte layer 30 located above the first electrode layer 10, and a second electrode located above the solid electrolyte layer 30.
  • a layer 20 is provided.
  • the first electrode layer 10 has a first current collector 11 and a first mixture layer 12 located between the first current collector 11 and the solid electrolyte layer 30. Further, the first electrode layer 10 overlaps with the second electrode layer 20 and has a rectangular power generation region 14 when viewed from above.
  • the second electrode layer 20 faces the first electrode layer 10.
  • the second electrode layer 20 has a second current collector 21 and a second mixture layer 22 located between the second current collector 21 and the solid electrolyte layer 30. Further, the second electrode layer 20 overlaps with the first electrode layer 10 and has a rectangular power generation region 24 when viewed from above.
  • the power generation region 14 and the power generation region 24 are examples of rectangular regions.
  • the battery 100 is, for example, a thin laminated all-solid-state battery.
  • the thickness of the first current collector 11 and the second current collector 21 is, for example, 5 ⁇ m or more and 100 ⁇ m or less, respectively.
  • the thickness of the first mixture layer 12 and the second mixture layer 22 is, for example, 5 ⁇ m or more and 300 ⁇ m or less, respectively.
  • the thickness of the solid electrolyte layer 30 is, for example, 5 ⁇ m or more and 150 ⁇ m or less.
  • the first current collector 11 has a terminal portion 13 protruding from the second electrode layer 20 when viewed from above.
  • the first current collector 11 has a rectangular region that overlaps with the power generation region 24 of the second electrode layer 20 and a terminal portion 13 that protrudes from the rectangular region when viewed from above.
  • the terminal portion 13 protrudes from the second current collector 21 in the top view.
  • the terminal portion 13 projects from a part of the side of the power generation region 24 of the second electrode layer 20 when viewed from above.
  • the width of the terminal portion 13 in the x-axis direction (in other words, the direction orthogonal to the direction in which the terminal portion 13 protrudes from the second electrode layer 20) is larger than the width of the power generation region 14 and the power generation region 24 in the x-axis direction. short.
  • the width of the terminal portion 13 in the x-axis direction is, for example, less than half the width of the power generation region 14 and the power generation region 24 in the x-axis direction.
  • the width of the terminal portion 13 that does not function as a power generation element can be reduced, and the weight energy density of the battery 100 is improved.
  • the width of the terminal portion 13 is reduced, the possibility of contact with other terminal portions or the like can be reduced, so that a short circuit is suppressed.
  • the shape of the terminal portion 13 is a rectangle in the illustrated example, but it may be a shape other than a rectangle.
  • the terminal portion 13 is used, for example, as a terminal for extracting a current from the battery 100. Further, the terminal portion 13 has a region on the terminal portion 13 in which the first mixture layer 12 and the solid electrolyte layer 30 are not provided, and the upper and lower surfaces of the terminal portion 13 are exposed. As a result, a conducting wire or the like for taking out an electric current can be connected so as to be sandwiched from the upper and lower surfaces of the terminal portion 13, so that a connection with high mechanical strength is possible.
  • the first mixture layer 12 is in contact with the first current collector 11 and is located above the first current collector 11. A part of the first mixture layer 12 is located in the power generation region 14 in a top view, and another part of the first mixture layer 12 is located on the terminal portion 13 of the first current collector 11. .. The upper surface of the first mixture layer 12 on the terminal portion 13 is covered with the solid electrolyte layer 30 and is not exposed.
  • the first mixture layer 12 is located in the entire power generation region 14 when viewed from above, but is not limited to this.
  • the first mixture layer 12 may have an area smaller than the power generation region 14 or may be located inside the power generation region 14 when viewed from above.
  • the solid electrolyte layer 30 may be provided so as to be in contact with the side surface of the first mixture layer 12 and the first current collector 11.
  • the second current collector 21 has a terminal portion 23 protruding from the first electrode layer 10 when viewed from above.
  • the second current collector 21 has a rectangular region that overlaps with the power generation region 14 of the first electrode layer 10 and a terminal portion 23 that protrudes from the rectangular region when viewed from above.
  • the terminal portion 23 protrudes from the first current collector 11 in the top view.
  • the terminal portion 23 projects from a part of the side of the power generation region 14 of the first electrode layer 10 when viewed from above.
  • the width of the terminal portion 23 in the x-axis direction (in other words, the direction orthogonal to the direction in which the terminal portion 23 protrudes from the first electrode layer 10) is larger than the width of the power generation region 14 and the power generation region 24 in the x-axis direction. short.
  • the width of the terminal portion 23 in the x-axis direction is, for example, less than half the width of the power generation region 14 and the power generation region 24 in the x-axis direction.
  • the shape of the terminal portion 23 is a rectangle in the illustrated example, but it may be a shape other than a rectangle.
  • the direction in which the terminal portion 23 protrudes from the first electrode layer 10 is the same as the direction in which the terminal portion 13 protrudes from the second electrode layer 20.
  • the terminal portion 23 is used, for example, as a terminal for extracting a current from the battery 100.
  • the second current collector 21 does not have to have the terminal portion 23.
  • a current may be taken out from the battery 100 by joining the second current collector 21 and the lead layer made of a conductive material.
  • the second mixture layer 22 is in contact with the second current collector 21 and is located below the second current collector 21.
  • the second mixture layer 22 is located in the power generation region 24 when viewed from above.
  • the second mixture layer 22 is located in the entire power generation region 24 when viewed from above, but is not limited to this.
  • the second mixture layer 22 may have an area smaller than the power generation region 24 or may be located inside the power generation region 24 when viewed from above.
  • the solid electrolyte layer 30 may be provided so as to be in contact with the side surface of the second mixture layer 22 and the second current collector 21.
  • the solid electrolyte layer 30 is located between the first electrode layer 10 and the second electrode layer 20. Specifically, the solid electrolyte layer 30 is located between the first mixture layer 12 and the second mixture layer 22, and is in contact with the upper surface of the first mixture layer 12 and the lower surface of the second mixture layer 22. ing. The solid electrolyte layer 30 covers the upper surface of the first mixture layer 12 and the lower surface of the second mixture layer 22. As a result, a short circuit due to contact between the first mixture layer 12 and the second mixture layer 22 with other electrodes or the like is suppressed.
  • the solid electrolyte layer 30 has a rectangular region that overlaps the power generation region 14 and the power generation region 24, and an exposed region 31 that protrudes from the rectangular region, when viewed from above.
  • the exposed region 31 is located inside the terminal portion 13 and overlaps with each other when viewed from above. That is, the solid electrolyte layer 30 is exposed in a part of the terminal portion 13 when viewed from above.
  • the solid electrolyte layer 30 is in contact with the upper surface of the first electrode layer 10, specifically, the upper surface of the first mixture layer 12 in the exposed region 31.
  • the position of the side surface of the solid electrolyte layer 30 on the terminal portion 13 coincides with the position of the side surface of the first mixture layer 12.
  • the solid electrolyte layer 30 may cover at least one side surface of the first mixture layer 12 on the terminal portion 13 and may be in contact with the first current collector 11.
  • the length of the exposed region 31 in the y-axis direction and the width in the x-axis direction may be as long as the reference electrode can be installed, and for example, both are 5 mm or more.
  • the first electrode layer 10 including the first current collector 11 and the first mixture layer 12 and the second electrode layer 20 including the second current collector 21 and the second mixture layer 22.
  • One of them is a positive electrode layer having a positive electrode current collector and a positive electrode mixture layer
  • the other is a negative electrode layer having a negative electrode current collector and a negative electrode mixture layer.
  • the positive electrode current collector and the negative electrode current collector include, for example, a foil-like body, a plate-like body, or a mesh-like body made of copper, aluminum, nickel, iron, stainless steel, platinum, gold, or an alloy of two or more of these. The body etc. are used.
  • the positive electrode mixture layer contains at least a positive electrode active material, and may contain at least one of a solid electrolyte, a conductive auxiliary agent, and a binder (binder), if necessary.
  • the positive electrode active material a known material capable of occluding and releasing (inserting and desorbing, or dissolving and precipitating) lithium ions, sodium ions or magnesium ions can be used.
  • a material capable of releasing and inserting lithium ions for example, lithium cobalt oxide composite oxide (LCO), lithium nickel oxide composite oxide (LNO), lithium manganate composite oxide (LMO). ), Lithium-manganese-nickel composite oxide (LMNO), lithium-manganese-cobalt composite oxide (LMCO), lithium-nickel-cobalt composite oxide (LNCO) or lithium-nickel-manganese-cobalt composite oxide (LNMCO) ) Etc. are used.
  • the solid electrolyte known materials such as a lithium ion conductor, a sodium ion conductor, and a magnesium ion conductor can be used.
  • an inorganic solid electrolyte or a polymer solid electrolyte (including a gel-like solid electrolyte) can be used.
  • a sulfide solid electrolyte or an oxide solid electrolyte is used.
  • a sulfide solid electrolyte in the case of a material capable of conducting lithium ions, for example, a composite composed of lithium sulfide (Li 2 S) and diphosphorus pentasulfide (P 2 S 5) is used.
  • Li 2 S-SiS 2, Li 2 S-B 2 S 3 or Li 2 S-GeS 2 may sulfide is used, such as, as an additive to the sulfide Sulfide to which at least one of 3 N, LiCl, LiBr, Li 3 PO 4 and Li 4 SiO 4 has been added may be used.
  • the oxide solid electrolyte in the case of a material capable of conducting lithium ions, for example, Li 7 La 3 Zr 2 O 12 (LLZ), Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) Alternatively, (La, Li) TiO 3 (LLTO) or the like is used.
  • LLZ Li 7 La 3 Zr 2 O 12
  • LATP Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3
  • (La, Li) TiO 3 (LLTO) or the like is used.
  • a conductive material such as acetylene black, carbon black, graphite or carbon fiber is used.
  • a binder for example, a binder for binding such as polyvinylidene fluoride is used.
  • the negative electrode mixture layer contains at least a negative electrode active material, and if necessary, may contain at least one of a solid electrolyte, a conductive auxiliary agent, and a binder as in the positive electrode mixture layer.
  • the negative electrode active material a known material capable of occluding and releasing (inserting and desorbing, or dissolving and precipitating) lithium ions, sodium ions or magnesium ions can be used.
  • a material capable of releasing and inserting lithium ions for example, a carbon material such as natural graphite, artificial graphite, graphite carbon fiber or resin calcined carbon, metallic lithium, lithium alloy or lithium and a transition metal. Oxides with elements are used.
  • the solid electrolyte layer 30 contains at least a solid electrolyte, and may contain a binder, if necessary.
  • the solid electrolyte layer 30 may contain a solid electrolyte having lithium ion conductivity.
  • the above-mentioned solid electrolyte and the binder can be used as the solid electrolyte and the binder.
  • the battery 100 includes a first electrode layer 10, a solid electrolyte layer 30 located above the first electrode layer 10, and a second electrode layer 20 located above the solid electrolyte layer 30. ..
  • the first electrode layer 10 has a first current collector 11 and a first mixture layer 12 located between the first current collector 11 and the solid electrolyte layer 30.
  • the first current collector 11 has a protruding terminal portion 13 when viewed from above.
  • the solid electrolyte layer 30 is exposed to at least a part of the terminal portion 13 when viewed from above.
  • the solid electrolyte layer 30 has an exposed region 31 that protrudes from the second electrode layer 20 and is exposed above the terminal portion 13 when viewed from above. Therefore, a reference electrode can be provided on the exposed region 31 of the solid electrolyte layer 30. That is, the reference electrode can be provided without newly providing the terminal structure for installing the dedicated reference electrode for the battery 100 which is the elementary battery, and the function of the reference electrode can be imparted to the battery 100. It becomes. For example, the amount of members used to provide a new terminal structure can be reduced. Further, since the exposed region 31 of the solid electrolyte layer 30 is supported by the terminal portion 13 of the first current collector 11, the solid electrolyte layer 30 is unlikely to be damaged.
  • the reference electrode does not need to be inserted between the first electrode layer 10 and the second electrode layer 20, a short circuit between the reference electrode and the first electrode layer 10 or the second electrode layer 20 is suppressed. .. Therefore, the reference electrode can be easily installed in the battery 100. As a result, for example, failure analysis using a reference electrode can be facilitated.
  • the charge / discharge state of each of the positive electrode layer and the negative electrode layer of the battery 100 can be measured by the reference electrode.
  • the health condition of the battery 100 also referred to as Battery Health or State of Health
  • the reliability of the battery 100 can be improved.
  • the first electrode layer 10 is produced by forming the first mixture layer 12 on the first current collector 11.
  • a known coating method or the like can be mentioned.
  • one of the positive electrode active material and the negative electrode active material, an inorganic solid electrolyte, a binder, and if necessary, a conductive auxiliary agent are mixed in an organic solvent to prepare a slurry. Subsequently, the slurry is applied onto the first current collector 11 and dried to form the first mixture layer 12 on the first current collector 11.
  • a polymer solid electrolyte material may be used instead of the inorganic solid electrolyte.
  • a known vacuum thin film forming process such as a sputtering method or a vapor deposition method is performed on the first current collector 11 by targeting the material of the positive electrode active material or the negative electrode active material as a target (evaporation source).
  • a method of forming the mixture layer 12 can be mentioned.
  • a mixture of a positive electrode active material or a negative electrode active material, an inorganic solid electrolyte, and a conductive auxiliary agent is subjected to an aerosol deposition method (AD method) or an electrostatic screen printing method for the first current collector 11.
  • a method of depositing on the first mixture layer 12 to form the first mixture layer 12 can be mentioned.
  • the first electrode layer 10 is used to expose the first current collector 11 at a portion that becomes a terminal portion 13 in a later step.
  • the area of the first mixture layer 12 is smaller than the area of the first current collector 11, and the first current collector 11 is formed so as to be partially exposed.
  • the obtained first electrode layer 10 can be compression-pressed by a flat plate press device, a roll press device, a cold isostatic pressing method (CIP: Cold Isostatic Pressing) device, or the like, if necessary.
  • CIP Cold Isostatic Pressing
  • the solid electrolyte layer 30 is formed on the obtained first electrode layer 10.
  • the same production method as the production of the first electrode layer 10 that is, a coating method, a vacuum thin film forming process, an AD method, or an electrostatic screen printing method is used.
  • a solid electrolyte or a mixture of the solid electrolyte and a binder is used as the material of the solid electrolyte layer 30 .
  • the solid electrolyte layer 30 is formed in a shape that coincides with the upper surface of the first mixture layer 12 when viewed from above.
  • FIG. 3 is a top view for explaining a step of forming the terminal portion 13 on the first current collector 11 in the method of manufacturing the battery 100.
  • FIG. 4 is a top view for explaining a state in which the terminal portion 13 is formed on the first current collector 11 in the method of manufacturing the battery 100.
  • FIG. 5 is a cross-sectional view taken along the line VV of FIG.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG.
  • a laminate 101 in which the solid electrolyte layer 30 is formed is formed on the first mixture layer 12 of the first electrode layer 10.
  • the first current collector 11 has a region on which the first mixture layer 12 and the solid electrolyte layer 30 are not formed on the first current collector 11.
  • the terminal portion 13 is formed by cutting or punching so as to include a region on which the first mixture layer 12 and the solid electrolyte layer 30 are not formed on the first current collector 11. Specifically, the laminated body 101 is cut or punched at the position of the cutting line C1 shown by the dotted line to form the laminated body 102 shown in FIG. As a result, the first current collector 11 on which the terminal portion 13 is formed is obtained.
  • the solid electrolyte layer 30 is formed on the first electrode layer 10 having the first current collector 11 and the first mixture layer 12. There is.
  • the side surfaces of the first mixture layer 12 and the solid electrolyte layer 30 are at the same position when viewed from above, and a part of the first mixture layer 12 and the solid electrolyte layer 30 is a terminal portion 13 of the first current collector 11. Formed on top. Further, in the region other than the terminal portion 13, the side surfaces of the first current collector 11, the first mixture layer 12, and the solid electrolyte layer 30 are at the same positions when viewed from above.
  • FIG. 7 is a top view for explaining a process of manufacturing the second electrode layer 20 in the method of manufacturing the battery 100.
  • the laminated body 103 is produced by forming the second mixture layer 22 on the second current collector 21.
  • the laminated body 103 is, for example, in order to expose the second current collector 21 at a portion that becomes the terminal portion 23 in a later step.
  • the area of the second mixture layer 22 is smaller than the area of the second current collector 21, and the second current collector 21 is formed so as to be partially exposed.
  • the obtained laminate 103 is cut or punched at the position of the cutting line C2 shown by the dotted line to form the second electrode layer 20 having the same shape as the battery 100 shown in FIG.
  • the shape of the second electrode layer 20 formed by the manufacturing method of the present embodiment is, for example, the same as the shape of the first electrode layer 10. That is, the shape of the cutting line C2 is the same as the shape of the cutting line C1 shown in FIG.
  • the shapes of the first electrode layer 10 and the second electrode layer 20 can be processed by the same process or cutting or punching using a mold or the like.
  • the obtained second electrode layer 20 is upside down and laminated on the laminated body 102 so that the solid electrolyte layer 30 and the second mixture layer 22 are in contact with each other, and then bonded (pressure-welded). Battery 100 is obtained. At this time, the laminated body 102 and the second electrode layer 20 are laminated so as to be in the orientation of the first electrode layer 10 and the second electrode layer 20 shown in FIG.
  • a solid electrolyte layer 30 is also formed on the second mixture layer 22 of the second electrode layer 20, and the solid electrolyte layer 30 on the second electrode layer 20 and the solid electrolyte layer 30 on the first electrode layer 10 are formed.
  • the battery 100 may be obtained by laminating and joining so as to be in contact with each other.
  • the second electrode layer 20 is produced by forming the second mixture layer 22 on the laminated body 102 and further laminating the second current collector 21 on the second mixture layer 22. May be good.
  • the solid electrolyte layer 30 is exposed to at least a part of the terminal portion 13 when viewed from above, but the present invention is not limited to this.
  • the solid electrolyte layer 30 may be exposed to at least a part of the terminal portion 23. That is, the solid electrolyte layer 30 may be formed on at least one of the terminal portion 13 and the terminal portion 23.
  • FIG. 8 is a cross-sectional view showing a schematic configuration of the battery 100a according to this modified example. Similar to FIG. 2, FIG. 8 shows a cross section of a region of the battery 100a including the terminal portion 13.
  • the battery 100a is different from the battery 100 according to the first embodiment in that the first electrode layer 10a and the solid electrolyte layer 30a are provided instead of the first electrode layer 10 and the solid electrolyte layer 30.
  • the battery 100a includes a first electrode layer 10a, a solid electrolyte layer 30a located above the first electrode layer 10a, and a second electrode layer 20 located above the solid electrolyte layer 30a. , Equipped with.
  • the first electrode layer 10a has a first current collector 11 and a first mixture layer 12a located between the first current collector 11 and the solid electrolyte layer 30a.
  • the first mixture layer 12a is in contact with the first current collector 11 and is located above the first current collector 11.
  • the first mixture layer 12a is not provided on the terminal portion 13 of the first current collector 11. A part of the first mixture layer 12a may be provided on the terminal portion 13.
  • the solid electrolyte layer 30a is located between the first electrode layer 10a and the second electrode layer 20a.
  • the solid electrolyte layer 30a has an exposed region 31a that is exposed to a part of the terminal portion 13 and protrudes from the second electrode layer 20a when viewed from above.
  • the solid electrolyte layer 30a covers the upper surface of the first mixture layer 12a and the lower surface of the second mixture layer 22.
  • the solid electrolyte layer 30a covers the side surface of the first mixture layer 12a on the terminal portion 13 side in a cross-sectional view, and is in contact with the first current collector 11 at the terminal portion 13.
  • the battery 100a covers, for example, the upper surface of the first mixture layer 12a and the side surface on the side where the terminal portion 13 is formed when the solid electrolyte layer 30a is formed on the first electrode layer 10a in the above-mentioned manufacturing method. It is obtained by forming the solid electrolyte layer 30a as described above.
  • FIG. 9 is a cross-sectional view showing a schematic configuration of the battery 100b according to this modified example.
  • FIG. 9 shows a cross section of a region of the battery 100b including the terminal portion 13, as in FIG. 2.
  • the battery 100b has the first electrode layer 10b, the second electrode layer 20b and the solid instead of the first electrode layer 10, the second electrode layer 20 and the solid electrolyte layer 30. The difference is that the electrolyte layer 30b is provided.
  • the battery 100b includes a first electrode layer 10b, a solid electrolyte layer 30b located above the first electrode layer 10b, and a second electrode layer 20b located above the solid electrolyte layer 30b. , Equipped with.
  • the first electrode layer 10b has a first current collector 11 and a first mixture layer 12b located between the first current collector 11 and the solid electrolyte layer 30b.
  • the second electrode layer 20b has a second current collector 21 and a second mixture layer 22b located between the second current collector 21 and the solid electrolyte layer 30b.
  • the first mixture layer 12b is in contact with the first current collector 11 and is located above the first current collector 11.
  • the first mixture layer 12b is not provided on the terminal portion 13 of the first current collector 11. A part of the first mixture layer 12b may be provided on the terminal portion 13.
  • the second mixture layer 22b is in contact with the second current collector 21 and is located below the second current collector 21.
  • the solid electrolyte layer 30b is located between the first electrode layer 10b and the second electrode layer 20b.
  • the solid electrolyte layer 30b has an exposed region 31b that is exposed to a part of the terminal portion 13 and protrudes from the second electrode layer 20b when viewed from above.
  • the solid electrolyte layer 30b covers the upper surface of the first mixture layer 12b and the lower surface of the second mixture layer 22b.
  • the solid electrolyte layer 30b covers the side surface of the first mixture layer 12b on the terminal portion 13 side in a cross-sectional view, and is in contact with the first current collector 11 at the terminal portion 13.
  • the solid electrolyte layer 30b covers the side surface of the second mixture layer 22b on the terminal portion 13 side in a cross-sectional view, and is in contact with the second current collector 21.
  • the reference electrode when the reference electrode is installed on the solid electrolyte layer 30b exposed in a part of the terminal portion 13, the reference electrode comes into contact with the first mixture layer 12b and the second mixture layer 22b. Short circuit due to is suppressed.
  • the battery 100b is manufactured by, for example, the following method.
  • the solid electrolyte layer 30b when the solid electrolyte layer 30b is formed on the first electrode layer 10b, the solid electrolyte layer 30b covers the upper surface of the first mixture layer 12b and the side surface on the side where the terminal portion 13 is formed.
  • a solid electrolyte layer 30b is further formed on the second mixture layer 22b. At that time, the solid electrolyte layer 30b is formed so as to cover the upper surface of the second mixture layer 22b and the side surface on the side where the terminal portion 13 is formed.
  • the first electrode layer 10b on which the solid electrolyte layer 30b is laminated and the second electrode layer 20b on which the solid electrolyte layer 30b is laminated are laminated so that the solid electrolyte layers 30b are in contact with each other. Then, the battery 100b is obtained.
  • FIG. 10 is a top view showing a schematic configuration of the battery 100c according to this modified example.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG.
  • the battery 100c has the first electrode layer 10c, the second electrode layer 20c and the solid instead of the first electrode layer 10, the second electrode layer 20 and the solid electrolyte layer 30. The difference is that the electrolyte layer 30c is provided.
  • the battery 100c includes a first electrode layer 10c, a solid electrolyte layer 30c located above the first electrode layer 10c, and a second electrode located above the solid electrolyte layer 30c.
  • the first electrode layer 10c and the second electrode layer 20c are each rectangular in top view.
  • the first electrode layer 10c has a first current collector 11c and a first mixture layer 12c located between the first current collector 11c and the solid electrolyte layer 30c. Further, the first electrode layer 10c overlaps with the second electrode layer 20c and has a rectangular power generation region 14c when viewed from above.
  • the second electrode layer 20c has a second current collector 21c and a second mixture layer 22c located between the second current collector 21c and the solid electrolyte layer 30c. Further, the second electrode layer 20c overlaps with the first electrode layer 10c and has a rectangular power generation region 24c when viewed from above.
  • the first current collector 11c and the second current collector 21c are stacked so as to be offset in the y-axis direction.
  • the terminal portion 13c and the terminal portion 23c which will be described later, are formed.
  • the widths of the first current collector 11c and the second current collector 21c are the same in the x-axis direction (in other words, the direction orthogonal to the direction in which the terminal portion 13c protrudes from the second electrode layer 20c) in the top view. Is.
  • the first current collector 11c has a terminal portion 13c protruding from the second electrode layer 20c when viewed from above. Specifically, the first current collector 11c has a rectangular region that overlaps with the power generation region 24c of the second electrode layer 20c and a terminal portion 13c that protrudes from the rectangular region when viewed from above.
  • the first current collector 11c is rectangular in top view.
  • the terminal portion 13c is a portion that does not overlap with the second electrode layer 20c in the first current collector 11c laminated so as to be displaced in the y-axis direction from the second electrode layer 20c when viewed from above.
  • the width of the terminal portion 13c in the x-axis direction is the same as the width of the power generation region 24c (that is, the second electrode layer 20c) in the x-axis direction.
  • the first mixture layer 12c is in contact with the first current collector 11c and is located above the first current collector 11c. A part of the first mixture layer 12c is located in the power generation region 14c when viewed from above. Another part of the first mixture layer 12c is also located on the terminal portion 13c of the first current collector 11c. The upper surface of the first mixture layer 12c on the terminal portion 13c is covered with the solid electrolyte layer 30c and is not exposed.
  • the second current collector 21c has a terminal portion 23c protruding from the first electrode layer 10c when viewed from above. Specifically, the second current collector 21c has a rectangular region that overlaps with the power generation region 14c of the first electrode layer 10c and a terminal portion 23c that protrudes from the rectangular region when viewed from above.
  • the second current collector 21c is rectangular in top view.
  • the terminal portion 23c is a portion that does not overlap with the first electrode layer 10c in the second current collector 21c laminated so as to be displaced in the y-axis direction from the first electrode layer 10c when viewed from above.
  • the direction in which the terminal portion 23c protrudes from the first electrode layer 10c is opposite to the direction in which the terminal portion 13c protrudes from the second electrode layer 20c.
  • the width of the terminal portion 23c in the x-axis direction is the same as the width of the power generation region 14c (that is, the first electrode layer 10c) in the x-axis direction.
  • the second mixture layer 22c is in contact with the second current collector 21c and is located below the second current collector 21c.
  • the second mixture layer 22c is located in the power generation region 24c when viewed from above.
  • the solid electrolyte layer 30c is located between the first electrode layer 10c and the second electrode layer 20c. Specifically, the solid electrolyte layer 30c is located between the first mixture layer 12c and the second mixture layer 22c, and is in contact with the upper surface of the first mixture layer 12c and the lower surface of the second mixture layer 22c. ing. The solid electrolyte layer 30c covers the upper surface of the first mixture layer 12c and the lower surface of the second mixture layer 22c.
  • the solid electrolyte layer 30c has a rectangular region that overlaps the power generation region 14c and the power generation region 24c, and an exposed region 31c that protrudes from the rectangular region, when viewed from above.
  • the exposed region 31c is located in a region that overlaps with the terminal portion 13c when viewed from above. That is, the solid electrolyte layer 30c is exposed in a part of the terminal portion 13c when viewed from above.
  • the solid electrolyte layer 30 and the second mixture layer 22 are in contact with the laminate 101 shown in FIG. 3 and the laminate 103 shown in FIG. 7, and are shown in FIG. It is manufactured by stacking and joining so as to have a positional relationship in the battery 100c.
  • the first current collector 11c and the second current collector 21c are laminated so as to be offset in the y-axis direction, and the terminal portion 13c, the terminal portion 23c, and the exposed region 31c are formed.
  • FIG. 12 is a top view showing a schematic configuration of the battery 200 according to the present embodiment.
  • FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG.
  • FIG. 13 shows a cross section of a region of the battery 200 including the terminal portion 13.
  • the battery 200 is different from the battery 100 according to the first embodiment in that it further includes an electrode 40.
  • the battery 200 includes a first electrode layer 10, a second electrode layer 20, a solid electrolyte layer 30, and an electrode 40.
  • the electrode 40 is in contact with the solid electrolyte layer 30 in the exposed region 31.
  • the electrode 40 is located inside the exposed region 31 and is separated from the second electrode layer 20 in the top view.
  • the thickness of the electrode 40 is smaller than the thickness of the second mixture layer 22, but is not limited to this, and may be larger than the thickness of the second mixture layer 22.
  • an insulating layer made of a solid electrolyte layer or an insulating resin material is formed between the electrode 40 and the second mixture layer 22. May be. As a result, a short circuit between the electrode 40 and the second mixture layer 22 is suppressed.
  • the resin material a known material used as a sealing member of a battery can be used.
  • the electrode 40 is, for example, a reference electrode used as a reference for measuring the potential of the positive electrode layer or the negative electrode layer.
  • the reference electrode can be used, for example, for failure analysis of the battery 200, monitoring of the operating state, charge / discharge control, and the like. As a result, the battery 200 is provided with the function of a reference electrode.
  • the electrode 40 may include a current collector, if necessary.
  • the electrode 40 is connected to a terminal or the like.
  • a material showing a constant potential in a solid electrolyte can be used.
  • the material of the reference electrode when the solid electrolyte is a lithium ion conductor, for example, metallic lithium, silver, indium-lithium alloy, lithium titanium oxide (Li 4 Ti 5 O 12 ) or the like is used.
  • the solid electrolyte is a sodium ion conductor
  • a metallic sodium, silver or potassium-sodium alloy or the like is used as the material of the reference electrode
  • metallic magnesium or silver or the like is used. Is used.
  • the battery 200 is produced, for example, by forming an electrode 40 on the solid electrolyte layer 30 of the formed laminate 102 in the above-mentioned manufacturing method.
  • a method for forming the electrode 40 for example, a pressure welding method, a coating method, a vacuum thin film forming process, or the like is used.
  • a pressure welding method or a coating method may be used because of the simplicity of the process.
  • the solid electrolyte layer 30 is exposed in a part of the terminal portion 13, but the present invention is not limited to this.
  • the solid electrolyte layer 30 may be provided so as to cover the entire upper surface of the terminal portion 13.
  • the power generation area 14 and the power generation area 24 are rectangular in top view, but the present invention is not limited to this.
  • the power generation region 14 and the power generation region 24 may have other shapes such as a circle, an ellipse, a semicircle, or a polygon other than a rectangle when viewed from above.
  • the direction in which the terminal portion 23 protrudes from the first electrode layer 10 is the same as the direction in which the terminal portion 13 protrudes from the second electrode layer 20. Not limited to this.
  • the direction in which the terminal portion 23 protrudes from the first electrode layer 10 may be different from the direction in which the terminal portion 13 protrudes from the second electrode layer 20, for example, the direction in which the terminal portion 23 protrudes from the first electrode layer 10. It may be in a direction orthogonal to or opposite to.
  • a plurality of batteries according to the above embodiment may be laminated to form a laminated battery.
  • the laminated battery may include a battery including a current collector having no terminal portion.
  • the battery according to the present disclosure can be used, for example, as a battery in which a reference electrode can be easily provided.
  • the battery according to the present disclosure is useful, for example, as an all-solid-state battery, particularly a thin laminated all-solid-state battery.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)
PCT/JP2020/016398 2019-11-28 2020-04-14 電池 Ceased WO2021106242A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021561149A JP7580056B2 (ja) 2019-11-28 2020-04-14 電池
CN202080070516.7A CN114586212A (zh) 2019-11-28 2020-04-14 电池
US17/661,715 US12315888B2 (en) 2019-11-28 2022-05-02 Battery

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019215404 2019-11-28
JP2019-215404 2019-11-28

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/661,715 Continuation US12315888B2 (en) 2019-11-28 2022-05-02 Battery

Publications (1)

Publication Number Publication Date
WO2021106242A1 true WO2021106242A1 (ja) 2021-06-03

Family

ID=76130414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/016398 Ceased WO2021106242A1 (ja) 2019-11-28 2020-04-14 電池

Country Status (4)

Country Link
US (1) US12315888B2 (https=)
JP (1) JP7580056B2 (https=)
CN (1) CN114586212A (https=)
WO (1) WO2021106242A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024135655A1 (ja) * 2022-12-22 2024-06-27 日本電気硝子株式会社 全固体ナトリウムイオン二次電池

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20250062035A (ko) * 2023-10-30 2025-05-08 주식회사 엘지에너지솔루션 리튬 이차전지용 양극 및 이를 포함하는 리튬 이차전지
CN120914197B (zh) * 2025-10-09 2026-01-27 重庆长安汽车股份有限公司 全固态电池用的参比电极及包含参比电极的全固态电池

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5492610A (en) * 1994-10-18 1996-02-20 The United States Of America As Represented By The Secretary Of The Army Solid state electrochemical cell for performing electro-chemical measurements on a solid electrolyte at high temperatures
JP2004228028A (ja) * 2003-01-27 2004-08-12 Matsushita Electric Ind Co Ltd 電気化学素子とその製法およびその製造装置
JP2013020915A (ja) * 2011-07-14 2013-01-31 Toyota Motor Corp 固体電池
JP2017142889A (ja) * 2016-02-08 2017-08-17 公益財団法人三重県産業支援センター 片面複合シート、両面複合シート、単電池シート、積層電池シート、片面複合シートを生産する方法、両面複合シートを生産する方法、単電池シートを生産する方法および積層電池シートを生産する方法
JP2019192596A (ja) * 2018-04-27 2019-10-31 トヨタ自動車株式会社 硫化物固体電池とこれを備えた硫化物固体電池システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007193986A (ja) * 2006-01-17 2007-08-02 Nissan Motor Co Ltd 非水電解質二次電池およびその使用方法
JP5446195B2 (ja) 2008-09-26 2014-03-19 日産自動車株式会社 リチウムイオン電池システムとその製造方法
JP2018129136A (ja) * 2017-02-06 2018-08-16 リチウム エナジー アンド パワー ゲゼルシャフト ミット ベシュレンクテル ハフッング ウント コンパニー コマンディトゲゼルシャフトＬｉｔｈｉｕｍ Ｅｎｅｒｇｙ ａｎｄ Ｐｏｗｅｒ ＧｍｂＨ ＆ Ｃｏ． ＫＧ 蓄電システム及び充電方法
DE102017216518A1 (de) * 2017-09-19 2019-03-21 Robert Bosch Gmbh Festkörperelektrolytzelle und Verfahren zum Herstellen einer Festkörperelektrolytzelle
JP7070052B2 (ja) * 2018-04-27 2022-05-18 トヨタ自動車株式会社 全固体電池

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5492610A (en) * 1994-10-18 1996-02-20 The United States Of America As Represented By The Secretary Of The Army Solid state electrochemical cell for performing electro-chemical measurements on a solid electrolyte at high temperatures
JP2004228028A (ja) * 2003-01-27 2004-08-12 Matsushita Electric Ind Co Ltd 電気化学素子とその製法およびその製造装置
JP2013020915A (ja) * 2011-07-14 2013-01-31 Toyota Motor Corp 固体電池
JP2017142889A (ja) * 2016-02-08 2017-08-17 公益財団法人三重県産業支援センター 片面複合シート、両面複合シート、単電池シート、積層電池シート、片面複合シートを生産する方法、両面複合シートを生産する方法、単電池シートを生産する方法および積層電池シートを生産する方法
JP2019192596A (ja) * 2018-04-27 2019-10-31 トヨタ自動車株式会社 硫化物固体電池とこれを備えた硫化物固体電池システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024135655A1 (ja) * 2022-12-22 2024-06-27 日本電気硝子株式会社 全固体ナトリウムイオン二次電池

Also Published As

Publication number Publication date
JP7580056B2 (ja) 2024-11-11
CN114586212A (zh) 2022-06-03
JPWO2021106242A1 (https=) 2021-06-03
US12315888B2 (en) 2025-05-27
US20220263138A1 (en) 2022-08-18

Similar Documents

Publication Publication Date Title
CN115298897B (zh) 电池
US20230009792A1 (en) Battery
JP7378097B2 (ja) 積層電池
US10714789B2 (en) All-solid state battery
US20190245190A1 (en) Stacked battery
US12315888B2 (en) Battery
WO2021009959A1 (ja) 電池
US12074292B2 (en) Laminated battery
US20180294470A1 (en) Stacked battery
CN112514106A (zh) 固体电池用正极、固体电池用正极的制造方法、及固体电池
CN112970136A (zh) 电池
WO2021210287A1 (ja) 電池
WO2021131094A1 (ja) 電池
JP2011082039A (ja) 非水電解質電池及び組電池
CN108695541B (zh) 非水电解质二次电池及其制造方法
US10854867B2 (en) Stacked battery
JP7180685B2 (ja) 固体電池
CN114600269B (zh) 电池的制造方法
CN117529840A (zh) 电池
WO2022259664A1 (ja) 電池および電池の製造方法
WO2022145120A1 (ja) 電池、積層電池及びその製造方法
US20250030136A1 (en) Battery and method of manufacturing same
CN116636030A (zh) 电池、层叠电池及其制造方法
WO2022145125A1 (ja) 電気デバイス
JP2011198625A (ja) 非水電解質電池用集電体、非水電解質電池用電極体及びその製造方法、並びに非水電解質電池

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20893894

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021561149

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20893894

Country of ref document: EP

Kind code of ref document: A1