WO2017119242A1 - 電池構造体、及び積層電池 - Google Patents
電池構造体、及び積層電池 Download PDFInfo
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- WO2017119242A1 WO2017119242A1 PCT/JP2016/086991 JP2016086991W WO2017119242A1 WO 2017119242 A1 WO2017119242 A1 WO 2017119242A1 JP 2016086991 W JP2016086991 W JP 2016086991W WO 2017119242 A1 WO2017119242 A1 WO 2017119242A1
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- battery
- sheet
- tab
- electrode
- laminated
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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
- 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
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
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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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/38—Construction or manufacture
-
- 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
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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
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M14/005—Photoelectrochemical storage cells
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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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
- 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
-
- 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
- H01M50/531—Electrode connections inside a battery casing
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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
- 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
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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- 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
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- 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 invention relates to a battery structure and a laminated battery.
- Patent Document 1 discloses a connection structure between an electrode tab and a tab lead in a capacitor such as a lithium ion battery.
- Patent Document 2 discloses a nonaqueous solid electrolyte battery in which a tab lead is connected to a positive electrode and a negative electrode. In Patent Documents 1 and 2, the positive electrode tab and the negative electrode tab are shifted from each other in plan view.
- the battery When increasing the capacity of a battery, the battery has a stacked structure in which unit battery sheets are stacked. In this case, if the tab portions overlap, the thickness of the battery will increase. Specifically, the thickness when two sheets are laminated is the total thickness of the sheet, tab lead, insulating material, conductive bonding agent, and the like, and thus the thickness of the laminated structure increases.
- the present invention has been made in view of the above-described problems, and an object thereof is to provide a technique that can be easily reduced in thickness.
- a battery structure includes a first sheet-like battery having a first electrode and a second electrode, a first electrode, and a second electrode, and the first sheet-like battery.
- a second sheet-shaped battery disposed opposite to the first sheet-shaped battery, and a tab lead for connecting the second electrode of the first sheet-shaped battery and the second electrode of the second sheet-shaped battery,
- the second electrode of the first sheet battery and the second electrode of the second sheet battery are arranged to face each other, and the first sheet battery and the second sheet battery are arranged to face each other.
- the first sheet-like battery includes a first tab portion formed so as to protrude outside the second sheet-like battery
- the second sheet-like battery includes the first sheet-like battery.
- a first insulating material is formed on the first sheet-shaped battery, a second insulating material is formed on the second sheet-shaped battery, and the first insulating material is the second tab portion.
- the second insulating material may be formed in the vicinity of the first tab portion.
- the thickness of the tab lead is equal to or less than the thickness of each of the first sheet-like battery and the second sheet-like battery. By doing so, the thickness can be reduced.
- an n-type metal oxide semiconductor layer, a charge layer, a p-type metal oxide semiconductor layer, and the second electrode are stacked in this order on the first electrode of the first sheet-like battery.
- the n-type metal oxide semiconductor layer, the charge layer, the p-type metal oxide semiconductor layer, and the second electrode are disposed on the first electrode of the second sheet battery.
- stacked in this order may be arrange
- the first stacked body is formed on both surfaces of the first electrode of the first sheet battery, and the first laminate is formed on both surfaces of the first electrode of the second sheet battery. Two laminated bodies may be formed. By doing so, the capacity can be further increased.
- the battery structure further includes a bonding agent for bonding the tab lead and the second tab portion, and the thickness of each of the first sheet-shaped battery and the second sheet-shaped battery is determined by the bonding agent. And the total thickness of the tab lead may be substantially equal. In this way, it can be easily stacked.
- a laminated battery according to an aspect of the present embodiment is a laminated battery in which a plurality of the battery structures are laminated, and the plurality of first tabs and the second tab parts are provided, and the plurality of first tabs are provided.
- the second electrode is provided on one surface of the portion, the insulating layer is provided on the other surface, the second electrode is provided on one surface of the plurality of second tab portions, and the other surface In this way, an insulating layer is provided in this way, and thus a short circuit between the first electrode and the second electrode can be prevented even when the battery structure is laminated.
- the two first tab portions are arranged so as to overlap each other, and the two second tab portions overlap each other. May be arranged. Connection with a terminal can be easily performed.
- the two first tab portions are displaced from each other, and the two second tab portions are displaced from each other. May be. By doing so, the thickness can be reduced.
- a bonding agent for bonding may further be provided, and the thickness of each of the first sheet-like battery and each of the second sheet-like batteries may be substantially equal to the total thickness of the bonding agent and the tab leads. .
- FIG. 1 is a cross-sectional view illustrating a configuration of a sheet battery according to a first embodiment.
- 3 is an XY plan view showing the configuration of the sheet battery according to the first embodiment.
- FIG. FIG. 3 is an exploded perspective view illustrating a configuration of a sheet pair according to the first embodiment.
- 3 is a YZ plan view showing a side configuration of the sheet pair according to Embodiment 1.
- FIG. 3 is an XZ plan view showing a side configuration of a sheet pair according to Embodiment 1.
- FIG. FIG. 3 is an XY plan view illustrating a planar configuration of a sheet pair according to the first embodiment.
- 1 is an exploded perspective view showing a configuration of a laminated battery according to a first embodiment.
- FIG. 3 is an XZ plan view showing a side configuration of the laminated battery according to Embodiment 1.
- FIG. It is a disassembled perspective view which shows the laminated battery concerning a modification.
- FIG. 6 is a cross-sectional view illustrating a configuration of a sheet battery according to a second embodiment.
- FIG. 6 is an XY plan view showing the configuration of the surface side of the sheet battery according to the second exemplary embodiment.
- FIG. 5 is an XY plan view showing the configuration of the back surface side of the sheet battery according to the second exemplary embodiment.
- FIG. 6 is an exploded perspective view illustrating a configuration of a sheet pair according to a second embodiment.
- FIG. 6 is a YZ plan view showing a side configuration of a sheet pair according to the second embodiment.
- FIG. 6 is an XZ plan view showing a side configuration of a sheet pair according to a second embodiment.
- FIG. 3 is an exploded perspective view illustrating a configuration of a laminated battery according to a second embodiment.
- FIG. 6 is an XZ sectional view showing a side configuration of the laminated battery according to the second embodiment.
- FIG. 6 is an XY plan view showing a configuration of a sheet battery according to a third exemplary embodiment.
- FIG. 6 is an exploded perspective view illustrating a configuration of a sheet pair according to a third embodiment.
- Embodiment 1 FIG.
- the present invention relates to a battery structure of a sheet battery such as a battery (hereinafter referred to as “oxide semiconductor secondary battery”) based on a new charging principle, and a laminated battery.
- An oxide semiconductor secondary battery is a secondary battery that can be charged and discharged.
- the charging layer is irradiated with ultraviolet rays to change the conductivity of the charging layer.
- FIG. 1 is a view showing a cross-sectional structure of a sheet battery 10 in which the oxide semiconductor secondary battery according to the present embodiment is formed into a sheet.
- a sheet-like battery 10 includes an n-type metal oxide semiconductor layer 12, a charge layer 13 for charging energy, a p-type metal oxide semiconductor layer 14, and a second electrode 15 in this order on a substrate 11. It has the laminated structure laminated
- the laminated structure formed on the substrate 11 is referred to as a laminated body 20. That is, the stacked body 20 includes the n-type metal oxide semiconductor layer 12, the charging layer 13, the p-type metal oxide semiconductor layer 14, and the second electrode 15.
- the base material 11 is formed of a conductive material such as metal and functions as a first electrode.
- the base material 11 is a negative electrode.
- a metal foil sheet such as an aluminum sheet can be used.
- n-type metal oxide semiconductor layer 12 is formed on the substrate 11.
- a material of the n-type metal oxide semiconductor layer 12 for example, titanium dioxide (TiO 2 ) can be used.
- n-type metal oxide semiconductor As the material for the charge layer 13, a fine-particle n-type metal oxide semiconductor can be used.
- the n-type metal oxide semiconductor changes its photoexcitation structure by irradiation with ultraviolet rays, and becomes a layer having a charging function.
- the charge layer 13 is made of a material containing an n-type metal oxide semiconductor and an insulating material.
- titanium dioxide, tin oxide, and zinc oxide are suitable. It is possible to use a material combining any two of titanium dioxide, tin oxide, and zinc oxide, or a material combining three.
- the p-type metal oxide semiconductor layer 14 is formed.
- a material of the p-type metal oxide semiconductor layer 14 nickel oxide (NiO), copper aluminum oxide (CuAlO 2 ), or the like is used. It is possible to use.
- a second electrode 15 is formed on the p-type metal oxide semiconductor layer 14.
- the second electrode 15 is a positive electrode.
- a conductive film such as a metal film is used for the second electrode 15.
- a film that can reduce the resistance such as a laminated film of Cr and Pd, or an Al film is formed.
- a metal electrode such as chromium (Cr) or copper (Cu) can be used as the second electrode.
- other metal electrodes include a silver (Ag) alloy film containing aluminum (Al).
- the forming method include vapor phase film forming methods such as sputtering, ion plating, electron beam evaporation, vacuum evaporation, and chemical vapor deposition.
- the metal electrode can be formed by an electrolytic plating method, an electroless plating method, or the like. In general, copper, copper alloy, nickel, aluminum, silver, gold, zinc, tin or the like can be used as a metal used for plating.
- the base material 11 in this embodiment may be formed of a conductive material that becomes a positive electrode, and the second electrode 15 may be a negative electrode.
- the positions of the n-type metal oxide semiconductor layer 12 and the p-type metal oxide semiconductor layer 14 may be switched. That is, a p-type metal oxide semiconductor layer is disposed under the charging layer 13 and an n-type metal oxide semiconductor layer is disposed thereon.
- the stacked body 20 having the n-type metal oxide semiconductor layer 12, the charging layer 13, the p-type metal oxide semiconductor layer 14, and the second electrode 15 is provided on the base material 11. Therefore, the second electrode 15 is disposed on the outermost surface of the sheet battery 10.
- the laminated body 20 is not provided in the edge part of the sheet-like battery 10.
- FIG. The laminate 20 is formed on almost the entire surface of the substrate 11 except for the end portions. Therefore, the base material 11 is exposed at the end of the sheet battery 10. In other words, the outside of the laminate 20 (that is, the peripheral end portion of the base material 11) is an exposed portion where the base material 11 is exposed.
- the substrate 11 is disposed on the outermost surface of the sheet battery 10.
- the charging layer 13 uses a material in which an insulating material and an n-type metal oxide semiconductor are mixed. Hereinafter, the charge layer 13 will be described in detail.
- the charging layer 13 uses silicone oil as a material for the insulating substance.
- titanium dioxide is used as a material for the n-type metal oxide semiconductor.
- Titanium dioxide, tin oxide, and zinc oxide are used as the material of the n-type metal oxide semiconductor used for the charging layer 13.
- the n-type metal oxide semiconductor is produced by decomposition from an aliphatic acid salt of these metals in the manufacturing process. For this reason, as a metal aliphatic acid salt, what can be decomposed
- aliphatic acid salts are easy to decompose or burn by heating, have high solvent solubility, have a dense film composition after decomposition or combustion, are easy to handle and inexpensive, and are easy to synthesize salts with metals.
- a salt of an aliphatic acid and a metal is preferred.
- the secondary battery according to the present embodiment can be increased in capacity by stacking the sheet batteries 10 shown in FIG. Specifically, the capacity of the secondary battery can be increased by connecting a plurality of sheet batteries 10 in parallel. For this reason, in this Embodiment, the sheet-like battery 10 is laminated
- the planar shape of the sheet-like battery 10 suitable for the laminated structure of parallel connection will be described.
- the plane on which the sheet battery 10 is placed is shown as an XY plane.
- the X direction and the Y direction are directions orthogonal to each other.
- the sheet battery 10 has a rectangular portion 31 and a tab portion 32.
- the rectangular portion 31 has a rectangular shape or a square shape.
- the end sides of the rectangular portion 31 are parallel to the X direction and the Y direction.
- the rectangular portion 31 is a rectangle whose longitudinal direction is the X direction.
- the tab portion 32 projects from the rectangular portion 31 to the + Y side. That is, the tab portion 32 protrudes outward from one end side of the rectangular portion 31.
- the sheet battery 10 is L-shaped.
- the tab portion 32 is formed at the upper left end portion of the rectangular portion 31.
- the main part of the laminate 20 is formed in a rectangular part 31 and a tab part 32. That is, the second electrode 15 is disposed on the outermost surface in most of the rectangular portion 31 and the tab portion 32.
- the base material 11 is exposed in the location where the laminated body 20 is not provided. Accordingly, the outermost surface of the sheet-like battery 10 is the base material 11.
- an insulating material 43 is formed on the sheet battery 10. As shown in FIG. 2, the insulating material 43 is formed on a part of the rectangular portion 31. Specifically, a tab portion 32 is formed at the upper left end portion of the sheet battery 10 along the X direction of the rectangular portion 31, and an insulating material 43 is formed at the upper right end portion.
- the insulating material 43 is disposed outside the stacked body 20. That is, the insulating material 43 is formed at a location where the base material 11 is the outermost surface. The insulating material 43 is directly formed on the base material 11 so as to be in contact with the base material 11. The insulating material 43 is formed so as to cover a part of the base material 11. The insulating material 43 is coated on the base material 11 by vapor deposition or spray coating. As the insulating material 43, for example, a resin film such as polyimide can be used. The insulating material 43 preferably has elasticity.
- the insulating material 43 is provided so that the base material 11 does not short-circuit with the second electrodes 15b of the other sheet batteries 10b (see FIG. 3 described later). The detailed configuration of the insulating material 43 will be described later.
- FIG. 3 is an exploded perspective view of the sheet pair 50.
- 4 is a YZ plan view showing a side configuration of the sheet pair 50
- FIG. 5 is an XZ plan view showing a side configuration of the sheet pair.
- FIG. 6 is an XY plan view schematically showing a planar configuration of the sheet pair 50.
- the sheet pair 50 has two sheet-like batteries 10a and 10b as a pair. In the sheet pair 50, two sheet batteries 10 are connected in parallel.
- the plane on which the sheet battery 10b is placed is the XY plane, as described above.
- a direction orthogonal to the XY plane is shown as a Z direction. Description will be made using an XYZ orthogonal coordinate system in which the in-plane directions of the sheet battery 10 are the X direction and the Y direction, and the thickness direction of the sheet pair 50 is the Z direction.
- one of the two sheet batteries 10 is shown as a sheet battery 10a and the other is shown as a sheet battery 10b.
- the sheet battery 10a is disposed on the upper side (+ Z side) with respect to the sheet battery 10b.
- the insulating material 43, the rectangular part 31, the tab part 32, and the laminated body 20 provided in the sheet battery 10a are shown as the insulating material 43a, the rectangular part 31a, the tab part 32a, and the laminated body 20a.
- the insulating material 43, the rectangular portion 31, the tab portion 32, and the stacked body 20 provided in the sheet battery 10b are shown as the insulating material 43b, the rectangular portion 31b, the tab portion 32b, and the stacked body 20b.
- the sheet pair 50 includes a sheet battery 10a serving as a first sheet battery and a second sheet battery serving as a second sheet battery.
- the tab portion 30a of the sheet battery 10a becomes the first tab portion
- the tab portion 32b of the sheet battery 10b becomes the second tab portion.
- the insulating material 43a provided in the sheet battery 10a is a first insulating material
- the insulating material 43b provided in the sheet battery 10b is a second insulating material.
- the sheet battery 10a and the sheet battery 10b are arranged so that the second electrodes 15a and 15b face each other. Therefore, the sheet-like battery 10a has a configuration in which the sheet-like battery 10 of FIG. 1 is turned upside down.
- the second electrode 15a of the sheet battery 10a is disposed so as to face the ⁇ Z side
- the second electrode 15b of the sheet battery 10b is disposed so as to face the + Z side. Therefore, as shown in FIGS. 4 and 5, in the sheet battery 10a, the stacked body 20a is disposed on the lower side, and in the sheet battery 10b, the stacked body 20b is disposed on the upper side.
- the tab portion 32a and the tab portion 32b are shifted from each other in the XY plan view. That is, the tab portion 32a is disposed at the + X side end portion of the sheet battery 10a, and the tab portion 32b is disposed at the ⁇ X side end portion of the sheet battery 10b. Thus, the position of the tab part 32a and the position of the tab part 32b in the X direction are different. Therefore, the tab part 32a and the tab part 32b are shifted. In other words, on the XY plane, the tab portion 32a of the sheet battery 10a is formed so as to protrude outside the rectangular portion 31a. Similarly, on the XY plane, the tab portion 32b of the sheet battery 10b is formed so as to protrude outside the rectangular portion 31b.
- the tab lead 41 is provided from the tab portion 32a to the tab portion 32b.
- the second electrode 15a of the sheet battery 10a and the second electrode 15b of the sheet battery 10b are connected via the tab lead 41.
- the tab lead 41 extends in the X direction so as to go from the tab portion 32a to the tab portion 32b.
- the tab lead 41 is formed of a conductive sheet, metal foil, or the like whose longitudinal direction is the X direction.
- a bonding agent 42 is formed on both ends of the tab lead 41.
- the bonding agent 42 is formed of a conductive paste or a conductive film.
- the tab lead 41 is bonded to the tab portions 32a and 32b via the bonding agent.
- the bonding agent 42 bonds the lower surface of the stacked body 20 a of the tab portion 32 a and the tab lead 41.
- the bonding agent 42 bonds the upper surface of the stacked body 20 a of the tab portion 32 b and the tab lead 41.
- the tab lead 41 is provided from the lower surface of the tab portion 32a to the upper surface of the tab portion 32b. In this way, the second electrode 15a of the sheet battery 10a and the second electrode 15b of the sheet battery 10b are electrically connected via the tab lead 41.
- an insulating material 43b is formed on the upper surface of the sheet battery 10b.
- the insulating material 43b is disposed in the vicinity of the tab portion 20a.
- the insulating material 43b is provided at the end of the sheet battery 10b.
- “near”, for example, the insulating material 43b is a portion where the laminated body 20b of the sheet battery 10b is not provided, and indicates a portion corresponding to the tab portion 32a.
- An insulating material 43b is disposed between the sheet-like battery 10a and the sheet-like battery 10b at a portion extending to the tab portion 32a of the sheet-like battery 10a.
- the insulating material 43b is disposed in the boundary portion between the tab portion 32a and the rectangular portion 31a of the sheet battery 10a and in the region on the rectangular portion 31a side. Accordingly, the insulating material 43b is interposed between the second electrode 15a provided on the outermost surface of the stacked body 20a in the vicinity of the tab portion 32a and the base material 11b of the sheet-like battery 10b. Therefore, a short circuit between the second electrode 15a of the sheet battery 10a and the first electrode 11b of the sheet battery 10b can be prevented.
- an insulating material 43a is formed on the lower surface of the sheet battery 10a.
- the insulating material 43a is disposed in the vicinity of the tab portion 20b.
- the insulating material 43a is provided at the end of the sheet battery 10a.
- the insulating material 43a has the same arrangement as the insulating material 43b. Therefore, the insulating material 43a is disposed between the base material 11a of the sheet battery 10a and the laminate 20 of the sheet battery 10b.
- the insulating material 43a is formed at a location where the stacked body 20a of the sheet battery 10a is not provided and corresponding to the tab portion 32b.
- An insulating material 43a is disposed between the sheet-like battery 10a and the sheet-like battery 10b at a location extending to the tab portion 32b of the sheet-like battery 10b.
- the insulating material 43a is arranged in a boundary portion between the tab portion 32b and the rectangular portion 31b of the sheet battery 10b and in a region on the rectangular portion 31b side.
- the insulating material 43a is interposed between the second electrode 15b provided on the outermost surface of the stacked body 20b near the tab portion 32b and the base material 11 of the sheet battery 10a. Therefore, a short circuit between the second electrode 15a of the sheet battery 10a and the first electrode 11a of the sheet battery 10b can be prevented.
- the insulating material 43 is disposed in this region.
- the insulating material 43 is disposed between the sheet-like battery 10a and the sheet-like battery 10b at the exposed portion of the substrate 11.
- the insulating material 43 is formed at the exposed portion of the base material 11, but the forming location of the insulating material 43 is not limited to the exposed portion of the base material 11. That is, the second electrode 15 of one sheet battery 10 and the layers other than the second electrode 15 of the other sheet battery 10 (base material 11, n-type metal oxide semiconductor layer 12, charge layer 13, p-type metal).
- the insulating material 43 may be formed at a location where the oxide semiconductor layer 14) faces. In this way, the two sheet batteries 10 can be reliably connected in parallel.
- each of the insulating materials 43 is thicker than the stacked body 20. Therefore, a gap G is formed between the sheet battery 10a and the sheet battery 10b. And it arrange
- the sheet pair 50 can be reduced in thickness by setting the thickness of the tab lead 41 to be equal to or less than the thickness of the sheet battery 10. That is, the tab portion 32 can be made thinner than the rectangular portion 31. Further, after the multilayering, the tab lead 41 is joined to the positive electrode terminal or the like by ultrasonic welding or resistance welding. The base material 11a and the base material 11b are also joined to the negative electrode terminal or the like by ultrasonic welding or resistance welding.
- the sheet pair 50 flexible by forming the base material 11 and the tab lead 41 with a flexible material.
- the lamination method is simple, the manufacturing cost can be reduced without adding an extra step. Therefore, the thickness can be easily reduced. Further, since the two sheet batteries 10 are connected in parallel, the capacity can be increased.
- FIG. 7 is an exploded perspective view showing a configuration of a battery having a multilayer structure in which sheet pairs 50 are stacked (hereinafter referred to as a stacked battery 100).
- FIG. 8 is an XZ plan view showing the configuration of the laminated battery 100. 7 and 8, three sheet pairs included in the stacked battery 100 are illustrated as sheet pairs 50a, 50c, and 50e. Since the sheet pairs 50a, 50c, and 50e shown in FIGS. 7 and 8 have the same configuration as the above-described sheet pair 50, they are appropriately simplified and illustrated. Moreover, about the content which overlaps with said description, description is abbreviate
- the sheet batteries 10 included in the sheet pair 50a are shown as sheet batteries 10a and 10b.
- the sheet batteries 10 included in the sheet pair 50c are referred to as sheet batteries 10c and 10d
- the sheet batteries 10 included in the sheet pair 50e are referred to as sheet batteries 10e and 10f.
- the tab portions 32a, 32c, and 32e of the sheet batteries 10a, 10c, and 10e overlap in the XY plan view.
- the tab portions 32b, 32d, 32f of the sheet batteries 10b, 10d, 10f overlap.
- the tab portions 32 are arranged so as to overlap.
- the insulating layer 16 is provided on the back side of the tab portion 32 in order to stack the sheet pairs 50a, 50c, and 50e as described above. That is, in the tab portion 32, the insulating layer 16 is provided so that the base material 11 does not short-circuit with the tab lead 41 or the second electrode 15 of the other sheet pair 50.
- the insulating layer 16 is formed on the back surface of the substrate 11 by vapor deposition, spray application, or the like, like the insulating material 43.
- the insulating layer 16a is provided on the upper surface of the tab portion 32a of the sheet battery 10a, and the laminated body 20a is provided on the lower surface.
- the laminated body 20b is provided on the upper surface of the tab portion 32b of the sheet battery 10b, and the insulating layer 16b is provided on the lower surface.
- insulating layers 16c and 16e are provided on the upper surfaces of the tab portions 32c and 32e of the sheet batteries 10c and 10e, respectively, and laminates 20c and 20e are provided on the lower surfaces, respectively.
- Insulating layers 16d and 16f are provided on the upper surfaces of the tab portions 32d and 32f of the sheet batteries 10d and 10f, respectively, and laminates 20d and 20f are provided on the lower surfaces, respectively.
- the insulating layer 16d By providing the insulating layer 16d, it is possible to prevent the base material 11d of the tab portion 32d from being short-circuited with the tab lead 41e or the stacked body 20f of the tab portion 32f.
- the insulating layer 16c By providing the insulating layer 16c, it is possible to prevent the base material 11c of the tab portion 32c from being short-circuited with the tab lead 41a or the stacked body 20a of the tab portion 32a.
- the insulating layer 16e By providing the insulating layer 16e, it is possible to prevent the base material 11e of the tab portion 32e from being short-circuited with the tab lead 41c or the stacked body 20c of the tab portion 32c.
- the insulating layer 16 is formed on the back surface side of the tab portion 32.
- the rectangular portions 31 overlap in the sheet batteries 10a to 10f. Therefore, in the rectangular part 31, the base material 11 faces the sheet-like battery 10b and the sheet-like battery 10c. Similarly, in the rectangular portion 31, the base material 11 is configured to face each other in the sheet battery 10d and the sheet battery 10e. Therefore, the base materials 11 which are 1st electrodes can be connected easily. Therefore, a plurality of sheet pairs 50a, 50c, 50e can be easily connected in parallel. Thereby, productivity of a large-capacity laminated battery can be improved.
- the tab lead 41 can be joined to a positive electrode terminal (not shown) by resistance welding or ultrasonic welding.
- a positive electrode terminal not shown
- the connection with the positive electrode terminal can be easily performed.
- the base material 11 can also be joined to the negative electrode terminal (not shown) by resistance welding or ultrasonic welding after lamination.
- FIG. 9 is an exploded perspective view showing the configuration of the laminated battery 101 according to the modification.
- the position of the tab portion 32 is shifted between adjacent sheet pairs. Specifically, the orientation of the sheet pair is rotated 90 degrees in the XY plane so that the position of the tab portion 32 is shifted in the adjacent sheet pair.
- the basic configuration of the laminated battery 101 is the same as that of the laminated battery 100, and thus the description thereof is omitted.
- sheet pairs 50 are shown as sheet pairs 50a, 50c, 50e, and 50g.
- the sheet pairs 50a, 50c, 50e, and 50g have the same configuration as the above-described sheet pair 50. Therefore, the description of the detailed configuration is omitted.
- the sheet batteries 10 included in the sheet pair 50a are shown as sheet batteries 10a and 10b.
- the sheet batteries 10 included in the sheet pair 50c are referred to as sheet batteries 10c and 10d
- the sheet batteries 10 included in the sheet pair 50e are referred to as sheet batteries 10e and 10f.
- the sheet batteries 10 included in the sheet pair 50g are referred to as sheet batteries 10g and 10h.
- the sheet pairs 50a, 50c, 50e, and 50g have different directions.
- the sheet pair 50c is arranged to be rotated 180 ° in the XY plane with respect to the sheet pair 50a.
- the sheet pair 50e is arranged to be rotated by 180 ° in the XY plane with respect to the sheet pair 50a.
- the tab portion 32 projects to the + Y side.
- the tab portion 32 projects to the -Y side.
- the sheet pair 50e projects to the + X side.
- the tab portion 32 projects to the + Y side. Therefore, in the laminated battery 101, the tab portion 32 protrudes in three directions.
- the tab portion 32 is shifted in the sheet pair adjacent vertically.
- the tab portions 32a and 32b are not aligned with the tab portions 32c and 32d.
- the tab portions 32e and 32f and the tab portions 32c and 32d do not overlap.
- the tab portions 32e and 32f and the tab portions 32g and 32h do not overlap. That is, in the XY plan view, the tab portions 32 are arranged so as to be shifted in adjacent sheet pairs. Therefore, a short circuit between the substrate 11 (first electrode) and the second electrode 15 can be more reliably prevented.
- the overlapping number of the tab portions 32 can be reduced, even if the tab portions 32 are thicker than the rectangular portions 31, the overall thickness of the laminated structure 101 can be reduced.
- FIG. 10 is a cross-sectional view illustrating a configuration of the sheet battery 10.
- the laminated body 20 and the laminated body 21 are provided on both surfaces of the base material 11. That is, in addition to the configuration of FIG. 1, the stacked body 21 is added.
- a laminate 20 is formed on one surface of the substrate 11, and a laminate 21 is formed on the other surface.
- the laminated body 21 includes the n-type metal oxide semiconductor layer 12, the charging layer 13, the p-type metal oxide semiconductor layer 14, and the second electrode 15, similarly to the laminated body 20. Therefore, the second electrode 15 is disposed on the outermost surface of both surfaces of the sheet battery 10.
- FIG. 11 is an XY plan view showing the configuration of the front surface side of the sheet battery 10
- FIG. 12 is an XY plan view showing the configuration of the back surface side of the sheet battery 10.
- insulating materials 43 are formed on both surfaces of the sheet battery 10. As in the first embodiment, the insulating material 43 is formed in a region where the stacked bodies 20 and 21 are not provided. Therefore, the insulating material 43 is directly formed on the base material 11 so as to be in contact with the base material 11. In other words, the insulating material 43 is formed at an exposed portion where the base material 11 is exposed. In the XY plan view, the insulating materials 43 on both sides overlap.
- FIG. 13 is an exploded perspective view showing the configuration of the sheet pair 50.
- FIG. 14 is an XZ plan view showing the configuration of the sheet pair 50.
- FIG. 15 is a YZ plan view showing a side configuration of the sheet pair. Since the basic configuration of the sheet pair 50 is the same as that of the sheet pair 50 according to the first embodiment, the description of the overlapping contents is omitted.
- the insulating material 43 is generated, a short circuit between the second electrode 15 and the substrate 11 can be prevented.
- the insulating material 43 is also formed on the upper surface of the sheet battery 10 a and the lower surface of the sheet battery 10.
- the laminate 20 is formed on both surfaces of the sheet batteries 10a and 10b, the capacity can be further increased.
- FIG. 16 is an exploded perspective view showing the configuration of the laminated battery 102.
- FIG. 17 is a cross-sectional view showing the configuration of the laminated battery of FIG. 16 and shows an XZ cross section cut by the tab portion 32.
- the stacked battery 102 includes two sheet pairs 50 stacked, and the two sheet pairs 50 are illustrated as sheet pairs 50 a and 50 c.
- the sheet pair 50a includes sheet batteries 10a and 10b.
- the sheet pair 50c includes sheet batteries 10c and 10d. That is, the laminated battery 102 includes the sheet batteries 10a to 10d.
- description is abbreviate
- three tab leads 41a, 41b, and 41c are provided for the four sheet batteries 10a to 10d.
- the tab lead 41a connects the stacked body 21a and the stacked body 20b.
- the tab lead 41c connects the stacked body 21d and the stacked body 20c.
- the tab lead 41b connects the stacked body 20a, the stacked body 21b, the stacked body 21c, and the stacked body 20d. That is, the bonding agent 42 is provided on both sides of the tab lead 41.
- the four sheet batteries 10 having the laminates 20 and 21 on both sides are connected by the three tab leads 41. Therefore, the number of tab leads 41 can be reduced, and parallel connection can be easily performed.
- the insulating material 43 is formed on both surfaces of the sheet batteries 10a to 10d. Therefore, even when the sheet-like batteries 10a to 10d having the laminates 20 and 21 on both sides are laminated, it is possible to prevent a short circuit between the second electrode 15 and the first electrode.
- the total thickness of the tab lead 41 and the bonding agent 42 is substantially equal to the thickness of the sheet battery 10. That is, the total thickness of the base material 11 and the laminate 20 and the laminate 21 provided on both sides thereof is substantially equal to the total thickness of the tab lead 41 and the bonding agent 42 provided on both sides thereof. . By doing in this way, even when the number of lamination
- the total thickness of the bonding agent 42 and the tab lead 41 can be equalized with the thickness of the sheet battery 10, so that the stacking can be performed more easily.
- FIG. 18 is a plan view showing the configuration of the sheet battery 10.
- FIG. 19 is an exploded perspective view showing the configuration of the sheet pair 50.
- the present embodiment only the configuration of the insulating material 43 is different from that of the first embodiment. Since the configuration other than the insulating material 43 is the same as that of the above-described embodiment, the description thereof is omitted as appropriate.
- the insulating material 43 is formed over the entire outer periphery of the sheet battery 10. That is, in the XY plan view, the insulating material 43 is continuously formed on the entire circumference of the sheet battery 10 and surrounds the stacked body 20. In the peripheral part of the base material 11, the insulating material 43 is arrange
- the insulating material 43 is provided on the entire outer periphery of the sheet battery 10. By doing in this way, a short circuit can be prevented more reliably.
- the structure of the insulating material 43 is not restricted to said structure. As long as the configuration can prevent a short circuit between the electrodes, the configuration of the minimum range may be used as shown in the first and second embodiments, or the entire outer periphery may be continuous as in the present embodiment. It may be provided. Of course, the insulating material 43 may have a configuration other than that illustrated in the first to third embodiments. In addition, as for a part of the laminated battery 100, the insulating material 43 may be provided on the entire outer periphery of the sheet-like battery 10, and the insulating material 43 may be provided on only a part of the outer periphery.
- the first to third embodiments can be appropriately combined.
- the modification of the first embodiment and the second embodiment can be combined.
- the configuration of the insulating material 43 according to the third embodiment can be combined with the first and second embodiments and the modifications thereof. That is, also in the first and second embodiments, the insulating material 43 may be provided on the entire outer periphery of the sheet battery 10.
- the sheet battery 10 is described as an oxide semiconductor secondary battery, but a battery other than the oxide semiconductor secondary battery may be used.
- a sheet battery such as a lithium ion battery can be used.
- the second electrode 15 is a positive electrode and the base material 11 (first electrode) is a negative electrode.
- the second electrode 15 is a negative electrode and the base material is not a positive electrode. May be.
- the tab lead 41 is configured to connect the negative electrodes to each other.
- this invention includes the appropriate deformation
- Sheet Battery 11 Base Material (First Electrode) 12 n-type metal oxide semiconductor layer 13 charging layer 14 p-type metal oxide semiconductor layer 15 second electrode 16 insulating layer 20 laminate 31 rectangular portion 32 tab portion 41 tab lead 42 bonding agent 43 insulating material 50 sheet pair 100 laminated battery
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Abstract
Description
上記の電池構造体は、前記タブリードと前記第2タブ部とを接合する接合剤をさらに備え、前記第1のシート状電池及び前記第2のシート状電池のそれぞれの厚さが、前記接合剤と前記タブリードとの合計厚さとほぼ等しくなっていてもよい。このようにすることで、容易に積層することができうる
本発明は、新たな充電原理に基づく電池(以下、「酸化物半導体二次電池」とする)等のシート状電池の電池構造体、及び積層電池に関する。酸化物半導体二次電池は、充放電が可能な二次電池である。具体的には、酸化物半導体二次電池では、充電層に紫外線を照射して、充電層の導電性を変化させている。
図1は、本実施形態による酸化物半導体二次電池をシート状としたシート状電池10の断面構造を示す図である。
シート状電池10a、10bを積層した電池構造体について、図3~図6を用いて説明する。以下、2枚のシート状電池10を積層した電池構造体をシートペア50として説明する。図3は、シートペア50の分解斜視図である。図4は、シートペア50の側面構成を示すYZ平面図であり、図5は、シートペアの側面構成を示すXZ平面図である。図6は、シートペア50の平面構成を模式的に示すXY平面図である。
シートペア50は、第1のシート状電池となるシート状電池10aと、第2のシート状電池となる第2のシート状電池を有している。シート状電池10aのタブ部30aが第1タブ部となり、シート状電池10bのタブ部32bが第2タブ部となる。同様に、シート状電池10aに設けられた絶縁材43aが第1絶縁材となり、シート状電池10bに設けられた絶縁材43bが第2絶縁材となる。
これにより、タブ部32b近傍の積層体20bの最表面に設けられた第2電極15bと、シート状電池10aの基材11との間に、絶縁材43aが介在することになる。よって、シート状電池10aの第2電極15aとシート状電池10bの第1電極11aとの短絡を防ぐことができる。
上記したシートペア50を積層した多層構造について、図7、図8を用いて説明する。図7は、シートペア50を積層した多層構造の電池(以下、積層電池100と呼ぶ)の構成を示す分解斜視図である。図8は、積層電池100の構成を示すXZ平面図である。なお、図7、図8では、積層電池100に含まれる3つのシートペアをシートペア50a、50c、50eとして示している。図7、図8に示すシートペア50a、50c、50eは、上記したシートペア50と同様の構成となっているため、適宜簡略化して図示している。また、上記の説明と重複する内容については、適宜説明を省略する。
図9を用いて、変形例にかかる積層電池101の構成を説明する。図9は、変形例にかかる積層電池101の構成を示す分解斜視図である。変形例では、隣接するシートペアにおいて、タブ部32の位置がずれている。具体的には、隣接するシートペアにおいて、タブ部32の位置がずれるよう、シートペアの向きをXY平面内で90度回転させている。なお、積層電池101の基本的な構成は、積層電池100と同様であるため、説明を省略する。
本実施の形態にかかるシート状電池10の構成について、図10を用いて説明する。図10は、シート状電池10の構成を示す断面図である。本実施の形態では、基材11の両面に積層体20、及び積層体21が設けられている。すなわち、図1の構成に加えて、積層体21が追加された構成となっている。基材11の一方の面に積層体20が形成され、他方の面に積層体21が形成されている。
本実施の形態にかかるシート状電池10を2枚積層したシートペアの構成について、図13~図15を用いて説明する。図13は、シートペア50の構成を示す分解斜視図である。図14は、シートペア50の構成を示すXZ平面図である。図15は、シートペアの側面構成を示すYZ平面図である。なお、シートペア50の基本的構成は、実施の形態1にかかるシートペア50と同様であるため、重複する内容については説明を省略する。
シートペア50を積層した積層電池102の構成について、図16、及び図17を用いて説明する。図16は積層電池102の構成を示す分解斜視図である。図17は、図16の積層電池の構成を示す断面図であり、タブ部32で切断したXZ断面を示している。
本実施の形態にかかるシート状電池10、及びシートペア50について、図18、図19を用いて説明する。図18は、シート状電池10の構成を示す平面図である。図19は、シートペア50の構成を示す分解斜視図である。本実施の形態では、絶縁材43の構成のみが実施の形態1と異なっている。なお、絶縁材43以外の構成については、上記した実施の形態と同様であるため、適宜説明を省略する。
11 基材(第1電極)
12 n型金属酸化物半導体層
13 充電層
14 p型金属酸化物半導体層
15 第2電極
16 絶縁層
20 積層体
31 矩形部
32 タブ部
41 タブリード
42 接合剤
43 絶縁材
50 シートペア
100 積層電池
Claims (10)
- 第1電極、及び第2電極を有する第1のシート状電池と、
第1電極、及び第2電極を有し、前記第1のシート状電池と対向配置された第2のシート状電池と、
前記第1のシート状電池の前記第2電極と前記第2のシート状電池の前記第2電極とを接続するタブリードと、を備え、
前記第1のシート状電池の前記第2電極と前記第2のシート状電池の前記第2電極とが向かい合って配置され、
前記第1のシート状電池と前記第2のシート状電池が向かい合って配置された状態の平面視において、
前記第1のシート状電池が、前記第2のシート状電池の外側にはみ出すように形成された第1タブ部を備え、
前記第2のシート状電池が、前記第1のシート状電池の外側にはみ出すように形成された第2タブ部を備え、
前記タブリードが、前記第1タブ部から前記第2タブ部に渡って設けられている電池構造体。 - 前記第1のシート状電池に第1絶縁材が形成され、
前記第2のシート状電池に第2絶縁材が形成され、
前記第1絶縁材が前記第2タブ部の近傍に形成され、
前記第2絶縁材が前記第1タブ部の近傍に形成されている請求項1に記載の電池構造体。 - 前記タブリードの厚さが前記第1のシート状電池及び第2のシート状電池のそれぞれの厚さ以下となっている請求項1、又は2に記載の電池構造体。
- 前記第1のシート状電池の第1電極上には、n型金属酸化物半導体層、充電層、p型金属酸化物半導体層、及び前記第2電極がこの順に積層された第1積層体が配置され、
前記第2のシート状電池の第1電極上には、n型金属酸化物半導体層、充電層、p型金属酸化物半導体層、及び前記第2電極がこの順に積層された第2積層体が配置されている請求項1~3のいずれか1項に記載の電池構造体。 - 前記第1のシート状電池の前記第1電極の両面に、前記第1積層体が形成され、
前記第2のシート状電池の前記第2電極の両面に、前記第2積層体が形成されている請求項4に記載の電池構造体。 - 前記タブリードと前記第2電極とを接合する接合剤をさらに備え、
前記第1のシート状電池、及び前記第2のシート状電池のそれぞれの厚さが、前記接合剤と前記タブリードとの合計厚さとほぼ等しくなっている請求項1に記載の電池構造体。 - 請求項1~4のいずれか1項に記載の電池構造体が複数積層された積層電池であって、
前記積層電池には、前記第1タブ部及び前記第2タブ部が複数設けられ、
前記複数の第1タブ部の一方の面には前記第2電極が設けられ、他方の面には絶縁層が設けられ、
前記複数の第2タブ部の一方の面には前記第2電極が設けられ、他方の面には絶縁層が設けられている積層電池。 - 上下に隣接する2つの前記電池構造体では、2つの前記第1タブ部が互いに重複するように配置されており、かつ、2つの前記第2タブ部が互いに重複するように配置されている請求項7に記載の積層電池。
- 上下に隣接する2つの前記電池構造体では、2つの前記第1タブ部が互いにずれて配置されており、かつ、2つの前記第2タブ部が互いにずれて配置されている請求項7に記載の積層電池。
- 請求項5に記載の電池構造体が複数積層された積層電池であって、
前記第1のシート状電池、前記第2のシート状電池、及び前記タブリードが複数設けられ、
前記各タブリードを前記各第2電極に接合する接合剤をさらに備え、
前記各第1のシート状電池、及び前記各第2のシート状電池の厚さが、前記各接合剤と前記各タブリードとの合計厚さとほぼ等しくなっている積層電池。
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JP2012033399A (ja) * | 2010-07-30 | 2012-02-16 | Sanyo Electric Co Ltd | 角形二次電池 |
KR101605765B1 (ko) * | 2010-10-07 | 2016-03-24 | 구엘라 테크놀로지 가부시키가이샤 | 이차 전지 |
JP5462304B2 (ja) * | 2012-03-12 | 2014-04-02 | Necエナジーデバイス株式会社 | リチウムイオン電池を用いた組電池 |
JP2014038817A (ja) | 2012-08-21 | 2014-02-27 | Toc Capacita Co Ltd | 蓄電器の電極タブとタブリードの接続構造及び接続方法 |
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JP2010108751A (ja) * | 2008-10-30 | 2010-05-13 | Sumitomo Electric Ind Ltd | 電池 |
WO2012020699A1 (ja) * | 2010-08-09 | 2012-02-16 | 株式会社 村田製作所 | 積層型固体電池 |
WO2013153603A1 (ja) * | 2012-04-09 | 2013-10-17 | 株式会社日本マイクロニクス | 二次電池 |
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Also Published As
Publication number | Publication date |
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TWI613855B (zh) | 2018-02-01 |
JP6622091B2 (ja) | 2019-12-18 |
EP3401979A1 (en) | 2018-11-14 |
CN108475755A (zh) | 2018-08-31 |
US20190020005A1 (en) | 2019-01-17 |
TW201733188A (zh) | 2017-09-16 |
EP3401979A4 (en) | 2019-07-10 |
KR102128670B1 (ko) | 2020-06-30 |
CA3010491A1 (en) | 2017-07-13 |
JP2017123230A (ja) | 2017-07-13 |
US10892452B2 (en) | 2021-01-12 |
CA3010491C (en) | 2019-12-17 |
KR20180091931A (ko) | 2018-08-16 |
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