WO2010125867A1 - 電気化学デバイスおよびその製造方法 - Google Patents
電気化学デバイスおよびその製造方法 Download PDFInfo
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- WO2010125867A1 WO2010125867A1 PCT/JP2010/054385 JP2010054385W WO2010125867A1 WO 2010125867 A1 WO2010125867 A1 WO 2010125867A1 JP 2010054385 W JP2010054385 W JP 2010054385W WO 2010125867 A1 WO2010125867 A1 WO 2010125867A1
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- current collector
- positive electrode
- negative electrode
- sheet
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- Y10T29/49108—Electric battery cell making
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49114—Electric battery cell making including adhesively bonding
Definitions
- the present invention relates to an electrochemical device including a laminated element in which a positive electrode and a negative electrode are alternately laminated with a separator interposed therebetween.
- an electrochemical device for example, an electric double layer capacitor or a lithium ion capacitor is known.
- Patent Document 1 proposes a solid electrolytic capacitor having an increased capacity without impairing the feature of being small and lightweight.
- the capacitor element 120 disclosed in Patent Document 1 includes an anode body 102 in which an oxide film layer 104 and a solid electrolyte layer 106 are formed in units of a plurality of small regions, and a conductor.
- the surface of 112 is covered with an insulating layer 114 to provide flexibility, and a wiring conductor 110 with the conductor 112 exposed at a portion overlapping the solid electrolyte layer 106 is provided.
- the wiring conductor 110 is sandwiched between the solid electrolyte layers 106 formed by folding the anode body 102, and the exposed conductor 112 and the solid electrolyte layer 106 are electrically connected via the conductor 118. Composed.
- the capacitor element 120 has a large internal resistance because one end of the folded wiring conductor is used as a lead terminal.
- Patent Document 2 proposes an electric double layer capacitor having a large capacitance and a low internal resistance. As shown in FIG. 8, this electric double layer capacitor is formed on a laminated surface of a pair of current collectors and current collectors, in which two strip-shaped conductors 219a and 219b are alternately folded.
- the device includes a polarizable electrode 212 and a separator 203 disposed between adjacent polarizable electrodes 212.
- the electric double layer capacitor having this structure requires a process of stacking each element, and is not suitable for mass production. *
- Patent Document 3 proposes a foldable lithium ion battery that can be manufactured by a simple process and a method for manufacturing the same.
- an active material 304 is applied to a strip-shaped uncoated portion 307 provided on both sides of a long negative electrode current collector, and a negative electrode sheet is formed. 301 is created.
- the active material coating edge part of a negative electrode is positioned and laminated
- the obtained capacity per current collector of the obtained battery is small, it is necessary to increase the number of layers to obtain a large capacity, and as a result, it is difficult to reduce the thickness. Moreover, internal resistance is large.
- An object of the present invention is to provide an electrochemical device that has a large acquisition capacity per current collector, a low internal resistance, and is easy to assemble. Moreover, an object of this invention is to provide the manufacturing method which can produce said electrochemical device stably efficiently.
- an electrochemical device includes an element formed of a laminate in which positive and negative electrodes are alternately laminated with a separator interposed therebetween.
- the positive electrode has a rectangular plate-shaped first current collector main body having a width dimension XA and a length dimension YA, and projects from one side of the first current collector main body in the width direction.
- a plurality of first current collectors having a first tab portion having a width dimension smaller than the width dimension of the body body, and a first surface formed on at least one main surface of the first current collector body.
- An active material layer, and the plurality of first current collectors are arranged such that the first current collector main bodies are the sides in the width direction of the current collector main bodies, and the first tab portions are By being alternately connected in the length direction at the side of the tab portion in the width direction, by valley-folding at the side in the width direction of the first current collector body, and by mountain-folding at the side in the width direction of the tab portion
- the first tab portions are overlapped and conductively connected to each other.
- the negative electrode has a rectangular plate-like second current collector body having a width dimension XB larger than the width dimension XA of the first current collector body and a length dimension YB, and the second current collector body A plurality of second current collectors, each having a second tab portion projecting from one side in the width direction of the current collector body and having a width smaller than the width of the second current collector body; A second active material layer formed on each main surface of the two current collector bodies, and the second current collector is adjacent to each other by connecting the first current collector bodies to each other. Between the first current collectors to be connected to each other and between the first current collectors adjacent to each other where the first tab portions are connected to each other, and the second tab portions are respectively exposed. The tab portions are overlapped and conductively connected.
- the separator has a width dimension XC that is the same as the width dimension XB of the second current collector body, and a length dimension YC that is at least twice the length dimension YB of the second current collector body. And is folded between approximately the center of the length dimension YC and disposed between the positive electrode and the negative electrode so as to wrap around the other side in the width direction of the current collector body of the negative electrode.
- the electrochemical device according to an embodiment of the present invention may further include an insulating layer that covers the surface on the base end side of the first tab portion of the positive electrode.
- the electrochemical device according to an embodiment of the present invention is configured by interposing a separator between a positive electrode and a negative electrode, and each of the positive electrodes has a rectangular plate shape having an active material layer on at least one surface.
- a first positive electrode current collector, a second positive electrode current collector, and a third positive electrode current collector including a positive electrode current collector main body and a positive electrode tab formed on a part of one side of the positive electrode current collector main body
- the second positive electrode current collector is electrically connected to the first positive electrode current collector through respective positive electrode tabs
- the positive electrode current collector body is a positive electrode of the first positive electrode current collector It arrange
- a positive current collector body of the first positive current collector is electrically connected through a side facing the positive current collector.
- the negative electrode is arranged so as to face the surface of the main body, and each of the negative electrodes has a rectangular plate-shaped negative electrode current collector main body portion having active material layers on both sides and one side of the negative electrode current collector main body portion.
- a first negative electrode current collector including a negative electrode tab formed in part; and a second negative electrode current collector, wherein the first negative electrode current collector includes the first positive electrode current collector and the second positive electrode current collector.
- the second negative electrode current collector is disposed between the first positive electrode current collector and the third positive electrode current collector, and the first negative electrode current collector is disposed between the current collector and the second negative electrode current collector.
- the separator is electrically connected via a negative electrode tab, and the separator includes a first sheet portion covering a surface of the negative electrode current collector main body portion of the first negative electrode current collector, and a second sheet portion covering the back surface.
- a first separator having a connecting part for connecting the first sheet part and the second sheet part, and a negative electrode current collector of the second negative electrode current collector
- the method for manufacturing an electrochemical device includes a rectangular plate-shaped first current collector having a width dimension XA and a length dimension YA in which first active material layers are formed on both main surfaces.
- a first current collector having a main body and a first tab portion projecting on one side in the width direction of the first current collector main body and having a width smaller than the width of the first current collector main body;
- a step of obtaining a positive electrode by valley folding and folding at the connecting portion between the first tab portions and folding, and a width of the first current collector body in which a second active material layer is formed on both main surfaces A rectangular plate-like second current collector body having a width dimension XB larger than the dimension and a length dimension YB, and a width direction of the second current collector body.
- a plurality of separators having a width dimension XC that is the same as the width dimension XB of the second current collector body and a length dimension YC that is at least twice the length dimension of the second current collector body are continuous in the width direction.
- a step of preparing a separator sheet to be formed a step of obtaining a negative electrode continuum by folding the separator sheet in the length direction with the negative electrode sheet sandwiched therebetween, and a plurality of positive electrodes arranged in the width direction apart from each other
- a negative electrode continuum between first current collectors that are connected to each other and between the first current collectors that are adjacent to each other, and between the first current collectors that are connected to each other and that are adjacent to each other.
- the manufacturing method of the electrochemical device in one Embodiment of this invention can adhere the said separator sheet and the said negative electrode sheet mutually in the process of obtaining a negative electrode continuous body.
- the manufacturing method of the electrochemical device in one Embodiment of this invention can perform the conductive connection of a tab part and an extraction conductor simultaneously with the conductive connection of tab parts.
- the positive electrode is folded and folded at the side in the width direction of the first current collector body and at the side in the width direction of the first tab portion.
- the first current collector main bodies are connected to each other between the first current collectors adjacent to each other, and the first current collectors are connected to each other between the first current collectors adjacent to each other.
- a negative electrode current collector is disposed so that the tab portion is exposed, and a separator folded in half at the center of the length dimension is disposed between the positive electrode and the negative electrode so as to wrap the negative electrode current collector body. It is arranged. For this reason, both the main surfaces of the plurality of stacked current collectors contribute to the acquisition of capacitance except for both outer sides of the stacked body.
- the connection position also contributes to the acquisition of the capacitance.
- capacitance per electrical power collector can be enlarged, and the electrochemical device with a large acquisition capacity
- the positive electrode is folded at the side in the width direction of the first current collector body and folded at the side in the width direction of the first tab portion, the surface of the current collector is oxidized. However, the increase in internal resistance is suppressed.
- width dimension XB of the second current collector body of the negative electrode is larger than the width dimension XA of the first current collector body of the positive electrode, generation of gas due to the non-opposing portion of the positive electrode is suppressed. Can do. *
- the electrochemical device in one embodiment of the present invention since the insulating layer that covers the surface on the base end side of the first tab portion of the positive electrode is provided, the occurrence of erroneous contact between the positive electrode and the negative electrode is prevented. be able to. *
- a first plate-shaped first current collector having a width dimension XA and a length dimension YA in which first active material layers are formed on both main surfaces.
- a first current collector having a main body and a first tab portion projecting on one side in the width direction of the first current collector main body and having a width smaller than the width of the first current collector main body;
- the positive electrode is obtained by folding and folding the first tab portions at the connecting portion.
- the second active material layer is formed on both main surfaces, and the second current collector in the form of a square plate having a width dimension XB larger than the width dimension of the first current collector body and a length dimension YB.
- a second current collector having a body main body and a second tab portion projecting on one side in the width direction of the second current collector main body and having a width smaller than the width of the second current collector main body
- a separator having a width dimension XC that is the same as the width dimension XB of the second current collector body and a length dimension YC that is at least twice the length dimension of the second current collector body is a width direction.
- a plurality of continuous separator sheets are prepared.
- the separator sheet is folded in the length direction by sandwiching the negative electrode sheet therebetween to obtain a negative electrode continuum.
- the first current collector bodies are connected to each other, and the first tab portions are connected to each other, and the first tab portions are connected to the plurality of positive electrodes arranged apart from each other in the width direction.
- a negative electrode continuous body is inserted between the first current collectors adjacent to each other so as to be erected, thereby obtaining a sheet laminate.
- the first tab portions of the positive electrodes of the sheet laminate and the second tab portions of the negative electrodes are electrically connected to each other.
- the negative electrode continuum of the sheet laminate is cut into the width of the element unit to obtain a plurality of laminates of the element unit.
- the laminated body is sealed in a package together with the electrolytic solution. For this reason, an electrochemical device having a large acquisition capacity per current collector can be efficiently and stably produced.
- the separator sheet and the negative electrode sheet are fixed to each other. Misalignment between the separator sheet and the negative electrode sheet in the negative electrode continuum and the occurrence of falling off of the negative electrode sheet can be prevented, and assembly work can be performed stably and efficiently.
- the man-hour at the time of assembly is reduced and the lead time is reduced. Can be shortened.
- an acquisition capacity per current collector can be increased, and a thin electrochemical device having a large capacity can be provided. Further, according to the method for manufacturing an electrochemical device in one embodiment of the present invention, there is an advantage that an electrochemical device having a large acquisition capacity per current collector can be efficiently and stably produced.
- FIG. 2A and 2B are diagrams illustrating an internal structure of an electrochemical device according to an embodiment of the present invention, in which FIG. 2A is a schematic diagram of a cross section taken along line AA in FIG. 1 and FIG. It is a schematic diagram of the cross section in the -B line.
- FIG. 3A is a perspective view showing a positive electrode sheet
- FIG. 3B is an exploded perspective view showing a positive electrode in a method for producing an electrochemical device according to an embodiment of the present invention. It is.
- FIG. 3A is a perspective view showing a positive electrode sheet
- FIG. 3B is an exploded perspective view showing a positive electrode in a method for producing an electrochemical device according to an embodiment of the present invention. It is.
- FIG. 4A is a diagram showing a step of obtaining a negative electrode continuum in the method for producing an electrochemical device according to one embodiment of the present invention
- FIG. 4A is a perspective view showing a negative electrode sheet and a separator sheet constituting the negative electrode continuum.
- 4 (B) is a perspective view showing a negative electrode continuum. It is a perspective view which shows the process of obtaining a sheet laminated body in the manufacturing method of the electrochemical device in one embodiment of this invention. It is a disassembled perspective view which shows the sheet
- the electrochemical device 10 includes an element composed of a laminate 16 in which positive electrodes 11A and negative electrodes 11B are alternately stacked with separators 15 interposed therebetween.
- the positive electrode 11A includes a rectangular plate-shaped first current collector body 12a1 having a width dimension XA and a length dimension YA (in this specification or in the claims, the first current collector body is referred to as “positive electrode current collector body”).
- a plurality of first current collectors 12a each having a first tab portion (sometimes referred to as a “positive electrode tab”) (the first tab portion in the present specification or claims)
- the positive electrode 11A is configured by alternately connecting a plurality of (for example, three) first current collectors 12a in the length direction.
- the positive electrode 11A connects a plurality of first current collectors 12a at the side F1 in the width direction of the first current collector main body 12a1, and further connects the first current collectors 12a thus connected.
- the first tab portion 12a2 is connected to the first tab portion 12a2 of the other current collector 12a by the side F2 in the width direction.
- the positive electrode 11A configured in this way is valley-folded at the side F1 in the width direction of the first current collector body 12a1, and crested at the side F2 in the width direction of the tab portion 12a2.
- the first tab portions 12a2 facing each other are folded and electrically connected to each other.
- the negative electrode 11B includes a rectangular plate-shaped second current collector body 12b1 having a width dimension XB and a length dimension YB larger than the width dimension XA of the first current collector body 12a1 (this specification or claim).
- the second current collector body may be referred to as a “negative electrode current collector body”) and the second current collector protruding from one side in the width direction of the second current collector body 12b1
- a plurality of second tab portions 12b2 having a width dimension smaller than the width dimension of the main body 12b1 (in the present specification or claims, the second tab portion may be referred to as a “negative electrode tab”).
- the current collector 12b is formed on both main surfaces of the current collector 12b (in the present specification or claims, the second current collector may be referred to as a “negative electrode current collector”) and the second current collector body 12b1. And a second active material layer 13b.
- One negative electrode 11B is inserted so that the second tab portion 12b2 is exposed between the first current collectors 12a connected at the side F1, and the other negative electrode 11B is connected to the first current collector 12a at the side F2.
- the second tab portion 12b2 is inserted between the current collectors 12a so as to be exposed, and the opposing second tab portions 12b2 are conductively connected to each other.
- the separator 15 is a rectangular member having a width dimension that is the same as the width dimension XB of the second current collector body 12b1 and a length dimension that is at least twice the length dimension YB of the second current collector body 12b1. , And is folded in half at the center of the length dimension YC. The separator 15 folded in half is disposed between the positive electrode 11A and the negative electrode 11B so as to enclose the current collector body 12b1 of the negative electrode 11B. That is, the separator 15 includes a sheet-like member that covers the surface of the current collector main body 12b1 of the negative electrode 11B, a sheet-like member that covers the back surface, and a connecting portion that connects these sheet-like members. *
- the electrochemical device 10 includes an insulating layer 14a that covers the surface on the base end side of the first tab portion 12a2 of the positive electrode 11A, and an insulating layer that covers the surface on the base end side of the second tab portion 12b2 of the negative electrode 11B. Layer 14b. *
- a method for manufacturing an electrochemical device according to an embodiment of the present invention will be described with reference to FIGS.
- a first active material layer 13a is formed on at least one of the front side and the back side of the main surface, and the width dimension XA, length
- a first current collector body 12a1 formed in a rectangular plate shape having a dimension YA and a width dimension of the first current collector body 12a1 protruding from one side in the width direction of the first current collector body 12a1
- a positive electrode sheet 11AS configured by connecting a plurality of first current collectors 12a having a first tab portion 12a2 having a small width dimension is prepared.
- the positive electrode sheet 11AS is configured by, for example, connecting three first current collectors 12a in the length direction.
- the first current collector body 12a1 of the first current collector 12a disposed in the center of the first current collector body 12a1 and the side F1 of the other first current collector 12a disposed forward.
- the first tab portion 12a2 of the other first current collector 12a in which the first tab portion 12a2 of the first current collector 12a disposed at the center is disposed rearward and the side in the width direction thereof. It is configured by connecting at F2.
- the first current collector body 12a1 of the first current collector 12a having the positive electrode sheet 11AS disposed in the center and the first current collector 12a disposed in front of the first current collector 12a.
- the first current collector body 12a1 is connected to the first current collector body 12a1 (side F1 in the width direction) and is folded at the bottom, and the first current collector 12a disposed at the center and the first tab portion 12a2 disposed rearward.
- the positive electrode 11A is obtained by folding and folding at the connecting portion (side F2 in the width direction) of the current collector 12a with the first tab portion 12a2.
- a negative electrode sheet 11BS is prepared in which a second current collector 12b having a second current collector body 12b1 and a second tab portion 12b2 is connected in the width direction.
- the second current collector body 12b1 has a second active material layer 13b formed on the front side and the back side of the main surface, and the width dimension XA of the first current collector body 12a1. It has a larger width dimension XB and a length dimension YB, and is formed in a rectangular plate shape.
- the second tab portion 12b2 protrudes from one side in the width direction of the second current collector body 12a1, and has a width dimension smaller than the width dimension XB of the second current collector body 12a1.
- the width of the separator 15 having the same width dimension XC as the width dimension XB of the second current collector body 12b1 and the length dimension YC twice as long as the length dimension YB of the second current collector body 12b1 is widened.
- a separator sheet 15 ⁇ / b> S configured by connecting a plurality in the direction is prepared. Separator sheet 15S is folded in two in the length direction with negative electrode sheet 11BS interposed therebetween, and negative electrode continuum 11BW shown in FIG. 4B is obtained. A plurality of negative electrode continuous bodies 11BW are prepared. Next, as shown in FIG.
- the negative electrode continuum 11BW is joined to a plurality of positive electrodes 11A arranged in the width direction so as to be separated from each other, thereby obtaining a sheet laminate 16S shown in FIG.
- one negative electrode continuum 11BW is inserted between the first current collector 12a disposed at the center and the first current collector 12a disposed at the front, and the other negative electrode continuum 11BW is disposed at the center. It is inserted between the first current collector 12a arranged and the first current collector 12a arranged behind. After the insertion, the first tab portions 12a2 of the positive electrode 11A are electrically connected to each other, and the second tab portions 12b2 of the negative electrode 11B are electrically connected to each other.
- the negative electrode continuum 11 ⁇ / b> BW of the sheet laminate 16 ⁇ / b> S is cut along the planned cutting line C so as to have a width dimension in unit of elements to obtain a plurality of laminates 16.
- the laminate 16 is sealed in the package 18 together with the electrolytic solution E to obtain the electrochemical device 10 shown in FIG. *
- the separator sheet 15S and the negative electrode sheet 11BS may be fixed to each other by the adhesive A as shown in FIG. *
- the conductive connection between the first tab portion 12a2 and the lead conductor 17a may be simultaneously performed.
- the conductive connection between the second tab portion 12b2 and the lead conductor 17b may be simultaneously performed.
- the first current collector 12a can be formed using a foil made of a metal such as aluminum, copper, nickel, and stainless steel, for example.
- a foil made of a metal such as aluminum or stainless steel can be used.
- the thickness of the foil can be in the range of 10 ⁇ m to 50 ⁇ m, for example.
- the first current collector body 12a1 can be formed in a rectangular plate shape. A square or a rectangle is not limited to a square in a geometrically strict sense.
- the first current collector main body 12a1 can be formed with a rounded surface or a C surface at the corners from the viewpoint of workability or the like, and can have a recess or a protrusion on each side.
- the first tab portion 12a2 protrudes from one side in the width direction of the first current collector body 12a1.
- the second current collector 12b can be formed using a foil made of a metal such as aluminum, copper, nickel, and stainless steel, for example.
- the material of the first current collector 12a and the material of the second current collector 12b may be the same or different.
- a foil made of a metal such as copper, nickel, and stainless steel can be used.
- the thickness of the foil can be in the range of 10 ⁇ m to 50 ⁇ m, for example.
- the second current collector body 12b1 can be formed in a rectangular plate shape.
- the square plate shape is not limited to a square shape in a geometrically strict sense.
- the second current collector main body 12b1 can be formed with an R-shape or a C-surface at the corners from the viewpoint of workability or the like, and can have some recesses or protrusions on each side.
- the second tab portion 12b2 protrudes from one side in the width direction of the second current collector body 12b1.
- the first active material layer 13a and the second active material layer 13b can contain an active material made of a carbon-based material such as activated carbon, polyacene, or graphite, or a lithium transition metal oxide.
- an active material made of a carbon-based material such as activated carbon, polyacene, or graphite, or a lithium transition metal oxide.
- any substance capable of reversibly occluding lithium ions and / or anions can be used as the active material, such as activated carbon, conductive polymer,
- a heat-treated product of an aromatic condensation polymer, such as a polyacene organic semiconductor (PAS) having a polyacene skeleton can be used.
- PAS polyacene organic semiconductor
- a lithium-containing metal oxide represented by a general formula of Li x M y O z (M represents one or more metals) such as LiCoO 2 , Li x NiO 2 , Li x MnO 2 , and Li x FeO 2 .
- fiber metal oxides such as cobalt, manganese, and nickel can also be used.
- the active material material of the first active material layer 13a and the active material material of the second active material layer 13b may be the same or different.
- the active material is not particularly limited as long as it can reversibly store lithium ions.
- the active material layer is formed by dispersing a powder of the active material, a binder and, if necessary, a conductive powder in an aqueous or organic solvent to form a slurry, which is applied to a current collector and then dried. be able to. It is also possible to form the slurry by pasting the slurry into a sheet shape on the current collector.
- the binder for example, a rubber binder such as styrene butadiene rubber (SBR), or a thermoplastic resin such as polypropylene or polyethylene can be used.
- the binder is a rubber-based binder such as SBR, a fluorine-based resin such as polytetrafluoroethylene or polyvinylidene fluoride, or polypropylene or polyethylene.
- a thermoplastic resin or the like can be used.
- the conductive powder acetylene black, graphite, metal powder, or the like can be used.
- a method for forming each active material layer 13a or 13b on the surface of each current collector body 12a1 or 12b1 for example, a coating method, a sheet pasting method, or the like can be used.
- the positive electrode sheet 11AS can be configured by connecting three or more first current collectors 12a in the length direction. As the number of connections increases, the average acquisition capacity per current collector can be increased. Further, the number of connections is not limited to an odd number, and an even number may be connected. Further, in the positive electrode 11A, the first active material layer 13a is formed on each of the current collector main bodies 12a1 of the plurality of first current collectors 12a except for the first current collector 12a located on the outermost side. Can be configured. From the viewpoint of workability and other aspects, the first active material layer 13a may also be formed on the outermost surface of the current collector body 12a1 of the plurality of first current collectors 12a.
- the active material layer on the outermost surface of each set may be omitted.
- one slit that is continuous with a part in the width direction or intermittently is connected to the portion where the current collector main bodies 12a1 of the first current collector 12a folded of the positive electrode 11A are connected.
- a plurality of slits provided may be formed, or grooves may be formed.
- a slit or a groove may be formed in the portion where the first tab portions 12a2 of the first current collector 12a folded of the positive electrode 11A are connected to each other.
- the negative electrode sheet 11BS can be configured by connecting two or more second current collectors 12b in the width direction. As the number of connections increases, the number of laminates 16 obtained per assembly process increases, and the electrochemical device 10 in one embodiment can be efficiently produced. Moreover, the negative electrode 11B can form the active material layer 13b on both front and back surfaces of the main surface of the current collector body 12b1 of the second current collector 12b. In the case where a negative electrode is further arranged on the outermost surface of the positive electrode 11A, an active material layer may be provided only on the surface facing the positive electrode. *
- the separator 15 can be formed of a porous body made of a material such as polyethylene, polytetrafluoroethylene (PTFE), cellulose, aramid resin, or a mixture thereof.
- the separator 15 can be formed of a porous body made of a material such as cellulose, polyethylene, or polypropylene.
- the thickness of the separator 15 can be in the range of 20 ⁇ m to 50 ⁇ m, for example.
- the separator sheet 15S can be formed by connecting two or more separators 15 in the width direction. *
- the negative electrode continuum 11BW can be formed by folding the separator sheet 15S sandwiched between the negative electrode sheets 11BS into two in the length direction. Further, the negative electrode sheet 11BS and the separator sheet 15S are fixed to each other by, for example, adhesion using the adhesive A or fusion using heat. *
- the insulating layer 14a is formed so as to cover the surface on the base end side of the first tab portion 12a2 of the positive electrode 11A.
- the insulating layer 14b is formed so as to cover the surface on the base end side of the second tab portion 12b2 of the negative electrode 11B.
- the stacked body 16 includes a positive electrode 11A, a first current collector 12a disposed at the center, a first current collector 12a disposed at the front and disposed at the center, and a first current collector 12a connected by a side F1.
- a first negative electrode 11B inserted between the first current collector 12a, a first current collector 12a disposed in the center, a first current collector 12a disposed rearward and connected to the first current collector 12a by a side F2.
- Another negative electrode 11B inserted between the current collector 12a and a separator 15 that is folded in half and disposed between the positive electrode 11A and the negative electrode 11B can be configured.
- the negative electrode 11B may be disposed on the outermost side of the plurality of first current collectors 12a folded of the positive electrode 11A via a separator 15. *
- the lead conductor 17a can be formed from a foil made of a metal such as aluminum, copper, nickel, and stainless steel.
- the thickness of the foil is, for example, in the range of 20 ⁇ m to 200 ⁇ m.
- lead conductors 17a and 17b are respectively connected to the first tab portion 12a2 of the positive electrode 11A that is conductively connected to each other and the second tab portion 12b2 of the negative electrode 11B that is conductively connected to each other. Conductive connection.
- the tab portions 12a2 and 12b2 and the lead conductors 17a and 17b can be electrically connected using a method such as an ultrasonic welding method, a resistance welding method, or a laser welding method. *
- the package 18 can be formed using, for example, a synthetic resin film laminated with a metal foil.
- the metal foil can be formed using aluminum or the like.
- the synthetic resin film is, for example, polypropylene, nylon, polyethylene terephthalate (PET), polyethylene, ethylene vinyl acetate copolymer resin, or a laminate thereof (for example, a laminate in which polypropylene is laminated as a base material with nylon as a sealant). For example, it can be formed by fusing the sides overlapped in two by heat sealing. *
- the electrolyte used as the electrolytic solution E is made of, for example, tetraethylammonium tetrafluoroborate (Et 4 NBF 4 ) or a compound represented by the following formula (1).
- Et 4 NBF 4 tetraethylammonium tetrafluoroborate
- X ⁇ (1) (wherein R1 to R4 are an alkyl group having 1 to 6 carbon atoms which may have an unsaturated bond, an ether bond, an amide bond or an ester bond, or a molecule thereof.
- the electrolyte is, for example, propylene carbonate (PC), acetonitrile, methoxy acetonitrile, 3-methoxy propionitrile, .gamma.-butyrolactone, butylene carbonate, dimethyl
- PC propylene carbonate
- acetonitrile methoxy acetonitrile
- 3-methoxy propionitrile .gamma.-butyrolactone
- butylene carbonate dimethyl
- an electrolyte made of a lithium salt such as LiClO 4 , LiAsF 6 , LiBF 4 , LiPF 6 , Li (C 2 F 5 SO 2 ) 2 N is used as ethylene.
- a solvent such as carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ⁇ -butyl lactone, acetonitrile, dimethoxyethane, tetrahydrofuran, dioxolane, methylene chloride or sulfolane, or a mixture of two or more of these solvents.
- the obtained electrolytic solution E is used as an example.
- an active material material paste containing activated carbon, carboxymethylcellulose, styrene butadiene rubber and acetylene black is applied to the front and back opposing positions of the main surface of a 25 ⁇ m thick aluminum foil by screen printing. Dry for 10 minutes to form an active material layer 13a having a thickness of 10 ⁇ m.
- a rectangular plate-shaped first current collector body 12a1 having a width dimension XA of 14 mm and a length dimension YA of 17 mm, and the first current collector body are formed from the aluminum foil on which the active material layer 13a is formed.
- two positive electrode sheets AS are obtained by punching out with a mold in a state where three are connected in the length direction. *
- the positive electrode sheet AS is valley-folded at the portion where the current collector main bodies 12a1 are connected to each other, and the first tab portions 12a2 are
- the positive electrode 11 ⁇ / b> A is obtained by carrying out mountain folding at the connected portions.
- the active material layer 13b is formed on the aluminum foil in the same manner as the active material layer 13a.
- a rectangular plate-shaped second current collector body 12b1 having a width dimension XB of 16 mm and a length dimension YB of 17 mm and one side in the width direction of the second current collector body 12b1
- a second current collector 12b having a second tab portion 12b2 that is protruded and has a width dimension 5 mm smaller than the width dimension of the second current collector body and a length dimension 4 mm.
- Two negative sheets 11BS are obtained by punching out from the mold in a state where two are connected in the width direction.
- separator sheet 15S in which two separators 15 having a width dimension XC of 16 mm and a length dimension YC of 36 mm are connected in the width direction is punched out from a 30 ⁇ m-thick cellulose using a mold to obtain two separator sheets 15S. It is done.
- the separator sheet 15S is folded in half in the length direction, and the negative electrode sheet 11BS is sandwiched between the two folded surfaces of the separator sheet 15S, whereby two sets of negative electrode continuums 11BW are obtained.
- One negative electrode continuum 11BW is inserted between the connected front current collector 12a, the first current collector 12a disposed in the center, the first current collector 12a disposed in the center, and the first current collector 12a.
- a sheet laminate 16S is obtained by inserting another negative electrode continuum 11BW between the first current collector 12a and the first current collector 12a arranged at the back connected by the side F2 of the one tab portion 12a2.
- the first tab portions 12a2 of the positive electrode of the sheet laminate obtained above are overlapped with each other, and further, one end side of the lead conductor 17a made of an aluminum strip having a width of 3 mm, a length of 40 mm, and a thickness of 100 ⁇ m.
- the first tab portions 12a2 of the positive electrode 11A and the lead conductor 17a are conductively connected by overlapping and welding with ultrasonic waves.
- the second tab portions 12b2 of the negative electrode 11B of the sheet laminate 16S obtained above are overlapped with each other, and further, one end side of the lead conductor 17b is overlapped and welded in the same manner as described above, whereby the first tab 11b of the negative electrode 11B is overlapped.
- the two tab portions 12b2 and the lead conductor 17b are conductively connected.
- the negative electrode continuum 11BW of the sheet laminate 16S thus obtained is cut into two so as to have a width in element units, and two laminates 16 in element units are obtained.
- the electric double layer capacitor thus obtained was subjected to a constant current discharge method using an electrochemical measurement system HZ-5000 and a charge / discharge device HJ-2010 manufactured by Hokuto Denko Corporation, headquartered in Meguro-ku, Tokyo, Japan.
- the electrical performance (capacitance, internal resistance) was measured with AC impedance (1 kHz). As a result, the capacitance was 0.2 F, and the internal resistance was 200 m ⁇ .
- the electric double layer capacitor has been described as an example, but the present invention is not limited to this.
- an electric electrode such as a so-called lithium ion capacitor or lithium ion battery in which lithium ions are supported on one electrode. It can also be applied to chemical devices.
- Electrochemical device 11A Positive electrode 11AS: Positive electrode sheet 11B: Negative electrode 11BS: Negative electrode sheet 11BW: Negative electrode continuum 12a: First current collector 12a1: First current collector body 12a2: First tab portion 12b: Second current collector 12b1: Second current collector body 12b2: Second tab portions 13a, 13b: Active material layers 14a, 14b: Insulating layer 15: Separator 15S: Separator sheet 16: Laminate 16S: Sheet lamination Body 17a, 17b: Lead conductor 18: Package C: Planned cutting line E: Electrolyte F1: Side (valley fold) F2: Side (mountain fold) XA: Width dimension XB of first current collector body XB: Second Current collector body width dimension XC: Separator width dimension YA: First current collector body length dimension YB: Second current collector body length dimension YC: Separator length dimension
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Abstract
Description
結された正極シートを準備し、正極シートを第1の集電体本体同士の連結部で谷折り、第1のタブ部同士の連結部で山折りして折り重ねることにより正極を得る。また、両主面に第2の活物質層が形成され前記第1の集電体本体の幅寸法より大きな幅寸法XBと、長さ寸法YBとを有する四角形の板状の第2の集電体本体と該第2の集電体本体の幅方向の一辺に突設され前記第2の集電体本体の幅寸法より小さい幅寸法の第2のタブ部とを有する第2の集電体が幅方向に複数連続する負極シートを準備する。また、前記第2の集電体本体の幅寸法XBと同一の幅寸法XCと、該第2の集電体本体の長さ寸法の2倍以上の長さ寸法YCとを有するセパレータが幅方向に複数連続するセパレータシートを準備する。次に、負極シートを間に挟んでセパレータシートを長さ方向に2つ折りすることにより負極連続体を得る。次に、幅方向に互いに離間して配列された複数の正極に対し、第1の集電体本体同士が連結され互いに隣接する第1の集電体間と、第1のタブ部同士が連結され互いに隣接する第1の集電体間とに、負極連続体をそれぞれ架設するように挿入してシート積層体を得る。次に、シート積層体の正極の第1のタブ部同士、負極の第2のタブ部同士を、それぞれ導電接続する。次に、シート積層体の負極連続体を素子単位の幅寸法に切断して素子単位の複数の積層体を得る。次に、積層体を電解液とともにパッケージ内に封止する。このため、集電体当りの取得容量が大きな電気化学デバイスを効率よく安定生産することができる。
の四角形に限られない。例えば、第1の集電体本体12a1には、作業性その他の観点から角部にR付けやC面を形成することができ、また、各辺に凹部や突部を有することができる。第1のタブ部12a2は、例えば、第1の集電体本体12a1の幅方向の一辺に突設される。
箔に活物質層13bが形成される。次に、このアルミニウム箔から、幅寸法XBが16mm、長さ寸法YBが17mmの四角形の板状の第2の集電体本体12b1と、第2の集電体本体12b1の幅方向の一辺に突設され第2の集電体本体の幅寸法より小さい幅寸法5mm、長さ寸法4mmの第2のタブ部12b2とを有する第2の集電体12bを、図4(A)に示すように幅方向に2つ連結された状態で金型から打ち抜き、2枚の負極シート11BSが得られる。
Claims (7)
- 正極と負極とがセパレータを間に挟んで交互に積層された積層体からなる素子を備えた電気化学デバイスであって、 前記正極は、幅寸法XA、長さ寸法YAの四角形の板状の第1の集電体本体と、該第1の集電体本体の幅方向の一辺に突設され前記第1の集電体本体の幅寸法より小さい幅寸法の第1のタブ部と、を有する複数の第1の集電体と、 前記複数の第1の集電体のそれぞれの前記第1の集電体本体の少なくとも一方の主面に形成された第1の活物質層と、を有し、 前記複数の第1の集電体は、第1の集電体本体同士が該集電体本体の幅方向の辺で、また第1のタブ部同士が該タブ部の幅方向の辺で、長さ方向に交互に連結されるとともに、前記第1の集電体本体の幅方向の辺で谷折り、前記タブ部の幅方向の辺で山折りすることにより折り重ねられ、前記第1のタブ部同士が重ね合わされて導電接続されており、 前記負極は、 前記第1の集電体本体の幅寸法XAより大きな幅寸法XBと、長さ寸法YBとを有する四角形の板状の第2の集電体本体と、該第2の集電体本体の幅方向の一辺に突設され前記第2の集電体本体の幅寸法より小さい幅寸法の第2のタブ部と、を有する複数の第2の集電体と、 該第2の集電体本体の両主面にそれぞれ形成された第2の活物質層と、を有し、 前記第2の集電体が、前記第1の集電体本体同士が連結され互いに隣接する第1の集電体間と、第1のタブ部同士が連結され互いに隣接する第1の集電体間とに、第2のタブ部が露出するように、それぞれ配設され、第2のタブ部同士が重ね合わされて導電接続されており、前記セパレータは、前記第2の集電体本体の幅寸法XBと同一の幅寸法XCと、前記第2の集電体本体の長さ寸法YBの2倍以上の長さ寸法YCとを有し、前記長さ寸法YCのほぼ中央で二つ折りにされて前記負極の集電体本体の幅方向の他辺側を包むように正極と負極との間に配設されていることを特徴とする電気化学デバイス。
- 前記正極の第1のタブ部の基端側の表面を被覆する絶縁層を有することを特徴とする請求項1記載の電気化学デバイス。
- 両主面に第1の活物質層が形成され幅寸法XA,長さ寸法YAの四角形の板状の第1の集電体本体と該第1の集電体本体の幅方向の一辺に突設され該第1の集電体本体の幅寸法より小さい幅寸法の第1のタブ部とを有する第1の集電体が、第1の集電体本体同士、第1のタブ部同士が長さ方向に交互に複数連結された正極シートを準備する工程と、正極シートを第1の集電体本体同士の連結部で谷折り、第1のタブ部同士の連結部で山折りして折り重ねることにより正極を得る工程と、両主面に第2の活物質層が形成され前記第1の集電体本体の幅寸法より大きな幅寸法XBと、長さ寸法YBとを有する四角形の板状の第2の集電体本体と該第2の集電体本体の幅方向の一辺に突設され前記第2の集電体本体の幅寸法より小さい幅寸法の第2のタブ部とを有する第2の集電体が幅方向に複数連続する負極シートを準備する工程と、前記第2の集電体本体の幅寸法XBと同一の幅寸法XCと、該第2の集電体本体の長さ寸法の2倍以上の長さ寸法YCとを有するセパレータが幅方向に複数連続するセパレータシートを準備する工程と、負極シートを間に挟んでセパレータシートを長さ方向に2つ折りすることにより負極連続体を得る工程と、幅方向に互いに離間して配列された複数の正極に対し、第1の集電体本体同士が連結され互いに隣接する第1の集電体間と、第1のタブ部同士が連結され互いに隣接する第1の集電体間とに、負極連続体をそれぞれ架設するように挿入してシート積層体を得る工程と、シート積層体の正極の第1のタブ部同士、負極の第2のタブ部同士を、それぞれ導電接続する工程と、シート積層体の負極連続体を素子単位の幅寸法に切断して素子単位の複数の積層体を得る工程と、タブ部に引出導体を導電接続する工程と、積層体を電解液とともにパッケージ内に封止する工程と、を有することを特徴とする電気化学デバイスの製造方法。
- 前記負極連続体を得る工程において、前記セパレータシートと前記負極シートとを相互に固着することを特徴とする請求項3記載の電気化学デバイスの製造方法。
- 前記タブ部と引出導体との導電接続を、タブ部同士の導電接続と同時に行なうことを特徴とする請求項3記載の電気化学デバイスの製造方法。
- 正極と負極との間にセパレータを介在させた電気化学デバイスであって、 前記正極は、 それぞれが、活物質層を少なくとも一方の面に有する矩形板状の正極集電体本体部と当該正極集電体本体部の1辺の一部に形成された正極タブとを含む第1正極集電体、第2正極集電体、及び第3正極集電体を有し、 前記第2正極集電体は、前記第1正極集電体とそれぞれの正極タブを介して電気的に接続され、その正極集電体本体が前記第1正極集電体の正極集電体本体の裏面と対向するように配置されており、 前記第3正極集電体は、前記第1正極集電体とそれぞれの正極集電体本体部の正極タブが形成された1辺と対向する辺を介して電気的に接続され、その正極集電体本体が前記第1正極集電体の正極集電体本体の表面と対向するように配置されており、 前記負極は、 それぞれが、活物質層を両面に有する矩形板状の負極集電体本体部と該当該負極集電体本体部の1辺の一部に形成された負極タブとを含む第1負極集電体、及び第2負極集電体を有し、 前記第1負極集電体は、前記第1正極集電体と前記第2正極集電体との間に配置され、 前記第2負極集電体は、前記第1正極集電体と前記第3正極集電体との間に配置されるとともに、前記第1負極集電体とそれぞれの負極タブを介して電気的に接続され、 前記セパレータは、 前記第1負極集電体の負極集電体本体部の表面を覆う第1シート部と、裏面を覆う第2シート部と、当該第1シート部と第2シート部とを連絡する連絡部とを有する第1セパレータと、 前記第2負極集電体の負極集電体本体部の表面を覆う第1シート部と、裏面を覆う第2シート部と、当該第1シート部と第2シート部とを連絡する連絡部とを有する第2セパレータと、 を含んで構成される、 電気化学デバイス。
- 前記負極集電体本体部が、前記正極集電体本体部の全面よりも幅広に形成された請求項6に記載の電気化学デバイス。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH097893A (ja) * | 1995-06-23 | 1997-01-10 | Matsushita Electric Ind Co Ltd | 電気二重層キャパシタ及びその製造方法 |
JP2001250742A (ja) * | 2000-03-07 | 2001-09-14 | Nec Corp | 電気二重層コンデンサとその製造方法 |
JP2002124435A (ja) * | 2000-10-13 | 2002-04-26 | Ngk Insulators Ltd | 電気化学キャパシタ |
WO2004084244A1 (ja) * | 2003-03-19 | 2004-09-30 | Nippon Chemi-Con Corporation | 積層コンデンサおよび積層コンデンサの製造方法 |
WO2007063742A1 (ja) * | 2005-12-01 | 2007-06-07 | Matsushita Electric Industrial Co., Ltd. | 巻回形電気二重層コンデンサ |
JP2008186943A (ja) * | 2007-01-29 | 2008-08-14 | Nissan Diesel Motor Co Ltd | 電気二重層キャパシタの製造方法 |
JP2009032727A (ja) * | 2007-07-24 | 2009-02-12 | Taiyo Yuden Co Ltd | 電気化学デバイス及びその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3334199B2 (ja) | 1992-12-05 | 2002-10-15 | 日本ケミコン株式会社 | 固体電解コンデンサ |
JP4737817B2 (ja) | 2000-11-16 | 2011-08-03 | トータル ワイヤレス ソリューショオンズ リミテッド | 折り畳み型リチウム電池の製造方法 |
CN1309105C (zh) * | 2003-12-24 | 2007-04-04 | 松下电器产业株式会社 | 卷式电化学元件用极板组和电池 |
-
2010
- 2010-03-16 US US13/203,663 patent/US8802268B2/en not_active Expired - Fee Related
- 2010-03-16 CN CN2010800090243A patent/CN102326218B/zh not_active Expired - Fee Related
- 2010-03-16 JP JP2011511349A patent/JP4964350B2/ja not_active Expired - Fee Related
- 2010-03-16 WO PCT/JP2010/054385 patent/WO2010125867A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Also Published As
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JPWO2010125867A1 (ja) | 2012-10-25 |
US8802268B2 (en) | 2014-08-12 |
CN102326218A (zh) | 2012-01-18 |
CN102326218B (zh) | 2013-01-02 |
US20120040231A1 (en) | 2012-02-16 |
JP4964350B2 (ja) | 2012-06-27 |
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