Abstract: A method includes the following steps: forming a porous anode body using powder of valve metal or an alloy thereof; forming a dielectric layer on the surface of the anode body; soaking the anode body having the dielectric layer in a liquid containing a conductive-polymer monomer, thereby making the monomer adhere to the dielectric layer of the anode body; forming a first conductive polymer layer by soaking the anode body having the monomer adhered thereto in an oxidizing agent solution, thereby polymerizing the monomer by liquid-phase chemical polymerization; forming a second conductive polymer layer by bringing the conductive-polymer monomer into contact with the surface of the anode body having the first conductive polymer layer in a gas phase, thereby polymerizing the monomer by gas-phase chemical polymerization; and forming a third conductive polymer layer by soaking the anode body having the second conductive polymer layer in a liquid containing a monomer of a conductive polymer layer, thereby polymerizi

Abstract: Electrode lead terminals in a number not less than three are attached to a cathode foil and an anode foil. The electrode lead terminals include at least one cathode lead terminal attached to the cathode foil and at least one anode lead terminal attached to the anode foil. A winding core having an axis is prepared. The cathode foil and the anode foil are wound around the winding core, being overlapped each other. A cross section of the winding core perpendicular to the axis includes an outer edge having a portion along each side of a polygon with the above number of sides. Thereby, a method for manufacturing an electrolytic capacitor capable of suppressing displacement of a lead terminal can be provided.

Abstract: An electrode foil includes a substrate made of metal and a rough layer disposed on a surface of the substrate and including plural fine metallic particles. The rough layer includes a lower layer, an intermediate layer which is disposed on the lower layer and is more distanced from the substrate than the lower layer is, and an upper layer which is disposed on the intermediate layer and is more distanced from the substrate than the intermediate layer is. The mode of diameters of fine particles in the intermediate layer is greater than the mode of diameters of the fine particles in the upper and lower layers. This electrode foil provides a capacitor having a small leakage current.

Abstract: Disclosed is ink for an electrochromic device including an electrochromic material, a metal salt, and a solvent. Disclosed also is an electrochromic device that includes a first electrode and a second electrode facing each other, an auxiliary electrode disposed on the first electrode or the second electrode, an electrochromic layer applied on the auxiliary electrode, and an electrolyte interposed between the first electrode and second electrode, wherein the electrochromic layer is formed using ink including an electrochromic material and a metal salt. Disclosed also is a method of manufacturing the electrochromic device.

Abstract: A capacitor has a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the electrode layers. At least one of the electrode layers of this capacitor has an Al porous body, and an electrode body held in this Al porous body to polarize the electrolyte. The oxygen content in the surface of the Al porous body is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body is 3.1% by mass or less is equal to the matter that a high-resistance oxide film is hardly formed on the surface of the Al porous body. Thus, this Al porous body makes it possible to make the current collector area of the electrode layer large so that the capacitor can be improved in capacity.

Abstract: Capacitors containing novel electrodes and electrolytes are described. One electrode composition comprises an oxide of Mn and Fe in a Mn:Fe molar ratio of 3:1 to 5:1. Another electrode composition comprises an oxide comprising Ni, Co, and Fe; wherein the Ni and Co are present in a Ni/Co molar ratio in the range of 0.5 to 2 and a Fe and Ni are present in a Ni/Fe molar ratio in the range of 1.0 to 10. The resulting capacitors can be characterized by superior properties. Methods of forming the electrodes from gels are also described. An electrolyte comprising a Li salt in a carbonate solution, wherein the carbonate solution comprises 10-30% ethylene carbonate and 70-90% propylene carbonate is also described.

Abstract: The present subject matter includes a method of producing an apparatus for use in a patient, the method including etching an anode foil, anodizing the anode foil, assembling the anode foil, at least one cathode foil and one or more separators into a capacitor stack adapted to deliver from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume at a voltage of between about 465 volts to about 620 volts, inserting the stack into a capacitor case, inserting the capacitor case into a device housing adapted for implant in a patient, connecting the capacitor to a component and sealing the device housing.

Abstract: A solid electrolytic capacitor that comprises an anode, a dielectric layer overlying the anode; and a cathode that contains a solid electrolyte layer overlying the dielectric layer. The anode comprises a porous, sintered body that defines a surface. The body is treated so that the surface contains a non-metallic element having a ground state electron configuration that includes five or more valence electrons at an energy level of three or more (e.g., phosphorous).

Abstract: A capacitor element of a solid electrolytic capacitor includes an anode body serving as an anode, a dielectric coating, a solid electrolyte layer, an insulating layer, and a carbon layer and a silver paste layer serving as a cathode. The insulating layer is formed to cover a relatively thin portion of the solid electrolyte layer.

Abstract: To provide a power storage device having a solid electrolyte, in which a charge-discharge capacity can be increased, and a method for manufacturing the power storage device. The power storage device includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode, and the electrolyte includes an ion-conductive high molecular compound, an inorganic oxide, and a lithium salt, and the inorganic oxide is included in the electrolyte at more than 30 wt % and 50 wt % or less to the total of the ion-conductive high molecular compound and the inorganic oxide.

Abstract: Disclosed herein is a printed circuit board and a connecting method thereof. The connecting method of the circuit board assembly may include molding the printed circuit board assembly by applying a resin to the printed circuit board assembly, exposing ends of the electrode terminals of a connector mounted on a printed circuit board by partially removing the molded printed circuit board assembly, and connecting a connection member to the exposed ends of the electrode terminals of the connector. Therefore, even if the whole of the printed circuit board assembly is molded, the connection member may be freely connected to the connector of the printed circuit board assembly.

Abstract: A capacitor containing a solid electrolytic capacitor element that includes an anode, dielectric, and solid electrolyte is provided. An anode lead extends from the anode and is electrically connected to an anode termination. The anode termination contains an upstanding portion that is bent or folded about an axis so that it possesses two or more sections. A slot (e.g., U-shaped) extends through the sections of the upstanding portion for receiving an anode lead. The resulting “folded” configuration of the anode termination increases the total thickness of the upstanding portion and its associated slot, which thereby enhances the degree of mechanical support and stability that the termination provides to the anode lead. This is particularly beneficial for thicker anode leads, such as those having a height and/or width of about 100 micrometers or more, in some embodiments about 200 micrometers or more, and in some embodiments, from about 250 to about 1000 micrometers.

Abstract: A surface layer of an anode body containing niobium is converted into a dielectric layer by a method for a chemical formation, which comprises step I of electrolytically forming an anode body comprising niobium in a chemical forming solution containing nitric acid and phosphoric acid at a temperature within a range from 40° C. to a boiling point of the chemical forming solution, step II of heat-treating the electrolytically formed anode body at a temperature within a range from 150° C. to 300° C., and step III of electrolytically forming the heat-treated anode body in a chemical forming solution containing nitric acid and phosphoric acid at a temperature within a range from 40° C. to a boiling point of the chemical forming solution. A cathode is formed on the dielectric layer to obtain a solid electrolytic capacitor element, and the element is sheathed to obtain a solid electrolytic capacitor.

Abstract: Disclosed is a niobium suboxide powder for the manufacture of capacitors with higher break down voltages, higher temperatures of operation and elongated lifetimes. The powder is doped with nitrogen which is at least partly present in the form homogeneously distributed, x-ray detectable Nb2N-crystal domains. The niobium suboxide powder contains niobium suboxide particles having a bulk nitrogen content of between 500 to 20,000 ppm.

Abstract: The present invention provides a solid electrolytic capacitor having a low ESR, excellent heat resistance, and reliability used under a high temperature condition. On the dielectric layer of the capacitor element, 2-alkyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine monomer is subject to oxidation polymerization to provide a first conductive polymer layer. Then, 2,3-dihydro-thieno[3,4-b][1,4]dioxine or a monomer mixture of 2,3-dihydro-thieno[3,4-b][1,4]dioxine and 2-alkyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine is subject to oxidation polymerization to provide a second conductive polymer layer. The formation of the first conductive polymer layer and the second conductive polymer layer is alternatively repeated. The first conductive polymer and the second conductive polymer serve as a solid electrolyte to provide a solid electrolytic.

Abstract: There is provided a solid electrolytic capacitor, including: a condenser element including a chip body molded by sintering, a positive electrode terminal contact layer formed on one area of the chip body to be exposed to the outside, an insulating layer formed in the entire area or some area other than one area in which the positive electrode terminal contact layer is formed, and a negative electrode layer stacked on the insulating layer; a negative electrode extracting layer stacked to be electrically connected with the negative electrode layer; a negative electrode terminal stacked on the negative electrode extracting layer; a positive electrode terminal stacked on the positive electrode terminal contact layer.

Abstract: There is provided a solid electrolytic capacitor, including: a condenser element including a positive electrode wire inserted and mounted to be biased from a center of a chip body; a positive electrode terminal including a pattern layer extendedly formed to the positive electrode wire to be bonded to the positive electrode wire; and a negative electrode terminal electrically connected to the condenser element.

Abstract: A capacitor includes a capacitor element, a collector plate joined to an electrode of the capacitor element, and a case accommodating the capacitor element and the collector plate. An inner surface of a bottom plate of the case has a contacting portion contacting the collector plate and a junction portion facing the collector plate. The junction portion of the inner surface of the bottom plate has a joining point joined to the collector plate and a separation part facing the collector plate around the joining point by a gap between the junction portion and the collector plate. The collector plate is located away from the contacting portion.

Abstract: A solid electrolytic capacitor includes a capacitor element coated with an enclosure resin, and an insulating substrate in which an anode terminal and a cathode terminal are formed. The anode terminal includes a first anode section formed on a first surface of the insulating substrate, a second anode section formed on a second surface of the insulating substrate, and an anode conductive layer which is formed on a side edge surface of the insulating substrate to electrically connect there anode sections to each other. The cathode terminal includes a first cathode section formed on the first surface, a second cathode section formed on the second surface, and a cathode conductive layer which is formed on the side edge surface of the insulating substrate to electrically connect there cathode sections to each other. And the anode conductive layer and the cathode conductive layer are exposed from the enclosure resin.

Abstract: The invention relates to an electrical energy storage system (100) comprising at least one coiled electrical energy storage element placed inside a casing (200), said casing (200) containing the coiled electrical energy storage element in a main body (210) of the casing (200) and including at least one cover (230, 240), characterized in that said cover (230, 240), placed at one end of the main body of the casing (200) and electrically connected by electrical connection means (280) to the coiled electrical energy storage element, is fastened to the main body (210) of the casing (200) by a bonding means (600). The invention is particularly applicable in the production of electrical energy storage assemblies such as supercapacitors, batteries or generators.

Abstract: There are provided a lithium ion capacitor and a method of fabricating the same. The lithium ion capacitor includes: a first electrode made of a first electrode material including activated carbon, a water-soluble metal oxide, and a water based binder; and a second electrode disposed to be faced to the first electrode, having a separating film therebetween and made of a second electrode material capable of reversibly containing lithium ions. Therefore, the lithium ion capacitor having improved energy density and output density may be provided, and the fabricating method thereof having environmentally-friendly characteristics and a competitive pricing may be provided.

Abstract: A capacitor assembly that includes a conductive polymer electrolytic capacitor that is enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas is provided. Without intending to be limited by theory, the present inventors believe that the ceramic housing is capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the conductive polymer is less likely to oxidize in high temperature environments, thus increasing the thermal stability of the capacitor assembly.

Abstract: An element for a solid electrolytic capacitor having low equivalent series resistance (ESR) and high capacitance per unit volume obtained by controlling the composition or the thickness of the silver paste forming a laminated structure on the anode substrate having a carbon paste layer on the surface. Using two kinds of silver pastes each having different wettability on the carbon paste layer and applying each silver paste on the side (edge) portions and face portions of an anode substrate, respectively, a desired layer thickness can be obtained as a whole. A solid electrolytic capacitor element preferably has a silver paste layer coating the side (edge) portions of the anode substrate which is thicker than the silver paste layer covering the face portions of the anode substrate, wherein a silver paste of composition having a water amount of 0.5 mass % or less is preferably used.

Abstract: A solid electrolytic capacitor comprises an insulating substrate in which an anode terminal and a cathode terminal are formed. The anode terminal comprises a first anode section formed on a first surface of the insulating substrate, and a second anode section formed on a second surface of the insulating substrate, which are electrically connected to each other. A connection part is formed integrally with the first anode section. The cathode terminal comprises a first cathode section formed on the first surface and a second cathode section formed on the second surface, which are electrically connected to each other. A distance between the first anode section and the first cathode section is smaller than a distance between the second anode section and the second cathode section. And an anode section and a cathode section of a capacitor element are electrically connected to the connection part and the first cathode section respectively.

Abstract: A prismatic battery cell or an electronic component comprising an electrode plate group of alternately stacked positive and negative electrode plates, wherein adjacent electrode plates of opposite polarity are insulated by an insulating separator, and electrode plates of one polarity are bent to converge at a common joining location for connecting together as a lead portion, the lead portion being joined together to a current collector of that one polarity, characterized in that the electrode plates are bent after the electrode plates are stacked and held or bundled together. Shaping the electrode plates to form the lead portions while the electrode plates are held in a stack means it is not necessary to handle pre-shaped electrode plates, since handling pre-shaped electrode plates in a production line could be tedious because the electrode plates are quite easily deformable.

Abstract: A solid electrolytic capacitor with a protective structure, which includes stacked capacitor elements electrically connected to the positive and negative terminal. A packaging material such as synthetic resin is used to encapsulate the capacitor elements, the positive terminal, and the negative terminal. Before packaging, a protective layer is formed by a colloid material, which covers the main body of the capacitor that includes the capacitor elements, the positive terminal, and the negative terminal. The protective layer provides a better seal and relieves the external pressure exerting on the capacitor during the packaging process. The protection prevents structural damage to the capacitor's main body while reducing the risk of short-circuits and excessive current leakage.

Abstract: An anode body includes an anode substrate, made of at least one of a valve metal and its alloy, and a porous layer, disposed on the anode substrate, which is formed of a combination of a plurality of second particles each composed of first metal particles. The porous layer includes a diffusely packed region X, formed within the secondary particles, and a closely packed region Y, formed between the anode substrate and the secondary particles and between the respective secondary particles. The closely packed region Y has a lower porosity than that of the diffusely packed region X.

Abstract: Disclosed herein are a lithium ion capacitor (LIC) including: a positive electrode including a positive electrode activated material; a negative electrode including a negative electrode activated material; and an electrolyte solution disposed between the positive electrode and the negative electrode, wherein the positive electrode activated material includes graphite, thereby making it possible to considerably improve capacitance of a lithium ion capacitor as compared to a lithium ion capacitor according to the related art, and a manufacturing method of the lithium ion capacitor.

Abstract: Methods of fabricating an array capacitor are disclosed, in which via structures of the array capacitor have increased uniformity in their transverse areas. One method involves perforating a capacitor body to form first holes extending from a first surface and partially through the capacitor body. The capacitor body may be further perforated to form second holes extending from a second opposed surface of the capacitor body. The second holes are to connect to the first holes to provide through holes extending across a thickness of the capacitor body. An appropriate conductive material may then be filled in the through holes to form via structures with increased uniformity in their transverse areas.

Abstract: In a solid electrolytic capacitor including a porous valve-acting metal, an anode conductor has a large number of pores having openings on the surface thereof according to the porosity of the valve-acting metal. A solid electrolyte layer is formed on the surface of the anode conductor so as to be filled in at least a portion of each of the pores and to close the openings thereof. Further, a cathode conductor is formed on the solid electrolyte layer. Preferably, the solid electrolyte layer has a two-layer structure with two layers having different particle sizes.

Abstract: Electric double layer capacitor (EDLC) devices include sealing conductor establishing a series connection between multiple storage cells in a single package, which may be operable at higher voltages than conventional EDLC devices.

Abstract: In accordance with an embodiment of the disclosure, a method of making a supercapacitor includes impregnating a foam electrode substrate with an active material precursor, wherein the foam electrode substrate includes a plurality of pores and the active material precursor is dispersed into the pores. The method further includes reacting the active material precursor infiltrated foam substrate with a reductant under conditions sufficient to convert the active material precursor to an active material, wherein the active material is based on a nitride, an oxynitride, a carbide, or an oxycarbide of a metal selected from Groups III, IV, V, VI, or VII of the Periodic Table.

Abstract: There is provided a method of manufacturing a solid electrolytic capacitor including: forming a conductive polymer layer on a surface of a metal pellet; and forming a dielectric layer between the metal pellet and the conductive polymer layer. Because the conductive polymer layer is directly formed on the surface of the metal pellet, the conductive polymer layer can be uniformly formed, and because there is no need to form an electrode on the surface of the dielectric layer, the process can be reduced. In addition, because the uniform polymer film is formed irrespective of the size of metal pores and the shape of the capacitor, a capacity of the capacitor can be maximized.

Abstract: One embodiment of the present subject matter includes a stack of substantially planar electrodes including at least a first and second anode layer, and a plurality of cathode layers, a case in which the stack is disposed and to which the plurality of cathode layers is connected, a first feedthrough disposed through the case and connected to the first anode and a second feedthrough disposed through the case and connected to the second anode, wherein a first capacitor including the first anode layer and a second capacitor including the second anode layer are electrically isolated.

Abstract: A solid electrolytic capacitor includes a positive electrode foil made of metal, a dielectric oxide layer provided on a surface of the positive electrode foil, a separator provided on the dielectric oxide layer, a solid electrolyte layer made of conductive polymer impregnated in the separator, a negative electrode foil facing the dielectric oxide layer across the solid electrolyte layer, and a phosphate provided on the dielectric oxide layer. This solid electrolytic capacitor reduces a leakage current.

Abstract: An electrochemical device capable of enhancing sealing performance of a lead terminal leading portion in an exterior film for accommodating an electrochemical element is provided. In an electrochemical device in which an electrochemical element 10 is covered by a laminated outer packaging film 4 having at least an innermost layer 41 made of heat adhesive synthetic resin, a sealing portion 4d of the outer packaging film 4 is heat sealed. A laminated-type lead terminal coating film 7 is arranged at a lead terminal 5, 6 connected to the electrochemical element 10 corresponding to the sealing portion 4d of the outer packaging film 4, and the melding point of the outermost layer 73 of the lead terminal coating film 7 is set to be lower than the melding point of the innermost layer 41 of the outer packaging film 4.

Abstract: A capacitor containing a solid electrolytic capacitor element that includes an anode, dielectric, and solid electrolyte is provided. An anode lead extends from the anode and is electrically connected to an anode termination. The anode termination contains an upstanding portion that is bent or folded about an axis so that it possesses two or more sections. A slot (e.g., U-shaped) extends through the sections of the upstanding portion for receiving an anode lead. The resulting “folded” configuration of the anode termination increases the total thickness of the upstanding portion and its associated slot, which thereby enhances the degree of mechanical support and stability that the termination provides to the anode lead. This is particularly beneficial for thicker anode leads, such as those having a height and/or width of about 100 micrometers or more, in some embodiments about 200 micrometers or more, and in some embodiments, from about 250 to about 1000 micrometers.

Abstract: Capacitive devices are described having electrical interconnects of electrodes which possess efficient electrical contact between current collectors, electrical isolation of electrodes, and/or electrochemical stability, while minimizing the mechanical stress and strain applied to the electrodes. The capacitive devices are adaptable to a wide range of electrode dimensions and electrode stack heights.

Abstract: An electrical-energy storage device configured for use in a time-varying electromagnetic field, the storage device comprising: an electrode at least part of which is configured so as to hinder the ability of eddy currents induced by said field to circulate therein.

Abstract: The present invention provides a solid electrolytic condenser including a condenser element with anode polarity; an anode wire with one side inserted inside the condenser element and the other side projected outside the condenser element; and an insulating layer formed by coating one surface of the condenser element and an exposed region of the anode wire adjacent to the one surface of the condenser element with a liquid insulating material through a non-contact scattering method and an apparatus and a method for forming the insulating layer of the solid electrolytic condenser.

Abstract: The present subject matter includes a method of producing an apparatus for use in a patient, the method including etching an anode foil, anodizing the anode foil, assembling the anode foil, at least one cathode foil and one or more separators into a capacitor stack adapted to deliver from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume at a voltage of between about 465 volts to about 620 volts, inserting the stack into a capacitor case, inserting the capacitor case into a device housing adapted for implant in a patient, connecting the capacitor to a component and sealing the device housing.

Abstract: One or more embodiments relate to a capacitor, comprising: a first electrode comprising a first layer including tantalum nitride, and a second layer including alpha-tantalum overlying the first layer; a dielectric layer; and a second electrode overlying the dielectric layer, the second electrode comprising a first layer including tantalum nitride, and a second layer including alpha-tantalum overlying the first layer.

Abstract: An electronic component includes a functional element, first and second collectors joined to the functional element, and an outer package integrally covering the functional element and the first and second collectors. The functional element has first and second end surfaces having circular shapes and a side surface having a cylindrical shape extending along a center axis. The element includes first and second electrode foils rolled about the center axis and exposed from the first and second surfaces, respectively. The outer package has first and second surfaces parallel to the first and second end surfaces of the functional element, and has first to fourth corners as seen from a direction of the center axis. The first corner is adjacent to the second corner. The first and second terminals are arranged at the first and second corners of the outer package, respectively. This electronic component can have a small size and a small height while reducing its equivalent series resistance.

Abstract: Provided are a method of manufacturing an electrode for an electrochemical capacitor and an electrochemical capacitor manufactured using the same. The method of manufacturing an electrode for an electrochemical capacitor includes immersing a metal foil in an acid solution to form a porous current collector having a skeleton structure with a surface roughness, applying an active material on the porous current collector, and pressing the porous current collector including the active material to distribute the active material into the porous current collector.

Abstract: Disclosed herein is an electrode structure for an energy storage apparatus. The electrode structure according to an exemplary embodiment of the present invention includes a current collector; and an active material layer formed in the current collector, wherein the active material layer includes: an active material; and a conductive material having a relatively higher content than that of the active material as being away from the current collector.

Abstract: Low ESR solid electrolytic capacitors and methods for their manufacture are described having anode-associated concave portions. The solid electrolytic capacitor in an embodiment has an anode terminal, which includes a terminal main body and a valve metal layer formed on the surface of the terminal main body. At least one concave portion is formed on the surface of the anode terminal, and an anode is formed in the concave portion on the anode terminal, wherein the anode is formed by a porous body comprising valve metal. A dielectric layer is formed on the anode, and a cathode is formed on the dielectric layer.

Abstract: Provided are a method of manufacturing a lithium ion capacitor and a lithium ion capacitor manufactured using the same. The method of manufacturing a lithium ion capacitor includes forming a lithium thin film on one surface of a separator; making the lithium thin film in contact with an anode, and alternately disposing the anode and a cathode with the separator interposed therebetween to form an electrode cell; and enclosing the electrode cell and an electrolyte into a housing, and pre-doping lithium ions to the anode from the lithium thin film.

Abstract: An energy storage device is provided. In one embodiment, the energy storage device includes an energy storage chamber containing an electrolyte, a flexible package packaging the energy storage chamber, a set of electrodes contacting with the electrolyte and extending from the interior of the energy storage chamber to the exterior of the flexible package for electrical connection, a first pipe extending from the interior of the energy storage chamber to the exterior of the flexible package, and a second pipe extending from the interior of the energy storage chamber to the exterior of the flexible package, and the electrolyte is conducted to the interior of the energy storage chamber through the first pipe, and the electrolyte and gas produced inside the energy storage chamber are exhausted through the second pipe. A system and a fabricating method are also provided.

Abstract: Embodiments of a method include forming a metal-insulator-metal (MIM) capacitor including a first electrode and a second electrode and an insulator layer between the first and second electrodes, the MIM capacitor also including a reactive layer; and altering the reactive layer to change a capacitive value of the MIM capacitor.

Abstract: To provide an electric storage device whose negative electrode can be doped with lithium ions in a short time and whose resistance can be lowered. An electric storage device including a unit that is obtained by alternately stacking a positive-electrode sheet 9 and a negative-electrode sheet 10 with a separator 3 interposed therebetween, the positive electrode sheet 9 including a positive-electrode active material layer 1 and a positive-electrode charge collector 4, and the negative electrode sheet 10 including a negative-electrode active material layer 2 and a negative-electrode charge collector 5, in which a foil, an etching foil, or a porous lath foil is used as the positive-electrode charge collector 4 and the negative-electrode charge collector 5, a cut is made in a coating area of the positive-electrode active material layer 1 and the negative-electrode active material layer 2, and a lithium supply source is disposed so as to be opposed to the negative electrode sheet 10 of the unit.