Abstract: There is provided a flat battery including a positive electrode can, a negative electrode can, a positive electrode material, a negative electrode material, and a positive electrode ring provided on an inner surface of a bottom of the positive electrode can to hold one of the positive electrode material and the negative electrode material. The positive electrode ring has a side wall and a flange that extends outward to overlap an open end of a circumferential wall of the negative electrode can. The flange is placed between the open end of the circumferential wall of the negative electrode can and the inner surface of the bottom of the positive electrode can.

Abstract: A method of manufacturing an electrical device comprises the steps of providing a substrate, providing an electrical component on the substrate, providing a first electrical contact on the substrate that is electrically connected to the electrical component, and providing an electrochemical cell on or integrating the substrate for providing electrical energy to said electrical component. The electrochemical cell comprises at least one electrochemical layer comprising a cured or dried ink and a first electrode contact electrically connected to said at least one electrochemical layer. The method further includes the step of securing the electrochemical cell to the substrate through an electrically conductive connection that provides both a structural connection and an electrical connection between the first electrical contact and the first electrode contact.

Abstract: A rechargeable battery pack includes a plurality of unit cells adjacent to each other along a first direction in a pouch, the pouch having a terrace portion at one side surface, and a vertical portion on and perpendicular to the terrace portion, a protection circuit module (PCM) electrically connected to the unit cells, the PCM including a concave groove, and the vertical portion of the pouch fitting into the concave groove, and an adhesion member connecting the PCM and the terrace portion of the pouch, the adhesion member including a separation portion configured to concavely separate and fit the vertical portion of the pouch.

Abstract: A secondary battery includes an electrode assembly comprising a first electrode plate, a second electrode plate and a separator interposed therebetween, and an electrolyte. A case accommodates the electrode assembly and an electrolyte. A finishing material is attached to an outer surface of the electrode assembly. In the secondary battery, the finishing material has an adhesive property on at least one surface.

Abstract: [Object] To provide an electrochemical device that permits a thin package, as well as securely prevents an electrolyte or gas in an internal space from leaking outside even when temperature rise occurs in the electrochemical device during the process where the electrochemical device is reflow soldered to a circuit board or encapsulated into an IC card. [Solution] In the electrochemical device RB1, the main body of the package PA includes first cover plate 15, first terminal plate 12, frame plate 14, second terminal plate 13, and second cover plate 16 stacked in this order and bonded at the facing surfaces. The electric storage element SD is encapsulated in internal space IS formed, between the cover plates 15, 16, by the through holes 12a1, 13a1 in the frame sections 12a, 13a of the terminal plates 12, 13 and the through hole 14a in the frame plate 14.

Abstract: [Object] To prevent elements in a pack main body and an electronic apparatus from malfunctioning even if the pack main body having an outer shape line-symmetric in up and down directions and left- and right-hand directions is incorrectly attached. [Solving Means] There are provided a pack main body 11 installing the battery cell 29 and a terminal portion 12 constituted of a plus terminal 12a, a minus terminal 12b, and a control terminal 12c that are provided on a front surface 11c of the pack main body 11. The plus terminal 12a, the minus terminal 12b, and the control terminal 12c are provided so as to be deviated to one end portion 11f in a width direction of the front surface 11c and arranged in an order of the plus terminal 12a, the control terminal 12c, and the minus terminal 12b.

Abstract: A secondary battery structure includes a jar body, a conductive stacked structure, and two end covers. The conductive stacked structure is configured in the jar body and at least includes a battery unit. The two end covers are respectively fixed at two ends of the jar body. The end covers are assembled to the jar body by inward compression in order to eliminate dimension errors of the conductive stacked structure in the jar body. The diameter of each end cover is smaller than or substantially equal to the inner diameter of the jar body.

Abstract: A positive collector and a negative collector are arranged such that connecting surfaces of the positive collector and the negative collector that are connected to collection groups face an electrode assembly. An insulator is arranged in a case between the positive and negative collectors and a terminal wall of the case. The insulator separates an opposing surface from the terminal wall. This reduces useless space and insulates the collectors and the power collection groups from the case.

Abstract: A secondary battery comprises an electrode assembly including a first electrode, a second electrode, a separator for insulating the first electrode and the second electrode from each other, a first electrode tab extending from the first electrode, a second electrode tab extending from the second electrode, and a pouch including a body and a cover. The body includes a receiving part for accommodating the electrode assembly, and a body sealing part extending from the receiving part. The cover includes a covering part corresponding to the receiving part of the body, and a cover sealing part corresponding to the body sealing part. At least two insulation layers and a conductive are provided at the body and the cover, respectively. The first electrode tab and the second electrode tab are electrically connected to the conductive layers of the body and the cover, respectively.

Abstract: Disclosed herein is a prismatic battery cell including a pouch-shaped battery cell having an electrode assembly mounted in a pouch-shaped battery case, a cell case, in which the pouch-shaped battery cell is mounted, the cell case having a polyhedral shape, and a terminal case including external input and output terminals, to which electrode terminals of the pouch-shaped battery cell are coupled, the terminal case being coupled to one end of the cell case, the terminal case having a polyhedral shape.

Abstract: A pouch-type lithium secondary battery including: a battery unit comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the separator is disposed between the positive and negative electrode plates; electrode tabs extending from each of the positive and negative electrode plates of the battery unit, respectively; a case having a space to accommodate the battery unit and sealing surfaces formed along the periphery of the space, wherein the case is sealed at the sealing surfaces by thermal fusion; and a protection circuit board 600 electrically connected to the electrode tabs. The protection circuit board is disposed parallel to an outer wall of the case. Since the electrode tabs are bent in an upright position with respect to the sealing surfaces, and the protection circuit board electrically connected to the bent electrode tabs is disposed between the outer wall of the case and the electrode tabs, the size of the sealing surfaces of the case can be minimized.

Abstract: A prismatic type secondary battery including an electrode assembly, the electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case accommodating the electrode assembly, the case having an open upper end and at least two pairs of surfaces facing each other; a cap assembly sealing the open upper end of the case; and an insulation tube surrounding a lateral periphery of the case and the cap assembly within a region up to a certain height or greater, the insulation tube including at least one elasticity part at a side thereof.

Abstract: A secondary battery is disclosed. The secondary battery includes an adhesive configured to attach to the electrode plates so as to strengthen the battery against separation, to reduce production of dust, and to protect the battery from dust.

Abstract: A battery system comprises a plurality of battery subunits arranged in a stack, wherein each battery subunit among the plurality of battery subunits comprises a first battery cell, a heatsink, a second battery cell, and a compliant pad in that order with the heatsink between and in thermal contact with the first and second battery cells and with the compliant pad abutting the second battery cell.

Abstract: In a prismatic secondary battery, an internal negative electrode terminal is electrically connected to a collector through through-holes formed in a sealing plate, a gasket, and an insulating member in a manner electrically insulated from the sealing plate. The sealing plate has one face on which a protrusion is formed, an insulating plate has a face that is on the sealing plate and on which a concave portion fitted to the protrusion is formed, each of the protrusion and the concave portion of the insulating plate is provided at one position on respective sides of the through-hole, and at least one of the protrusions has a top face on which a concave portion is formed. The battery having such a structure is unlikely to cause rotary displacement between the insulating plate and the sealing plate even when a rotary torque is applied to the internal terminal.

Abstract: A secondary battery includes: a case; and an electrode assembly accommodated in the case and including a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates. At least one of the positive and negative electrode plates includes: a first sub-electrode plate including a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate including a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material. The first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate to allow the first and the second sub-electrode plates to slip relative to each other.

Abstract: When an electrode assembly of a power storage device is viewed from the front in the direction of lamination, the distance between a positive electrode electricity collecting portion and an imaginary reference line passing through the center of the electrode assembly is different from the distance between a negative electrode electricity collecting portion and the imaginary reference line. Therefore, the electrode assembly has an asymmetrical structure.

Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly, including cathodes, anodes, and separators disposed respectively between the cathodes and the anodes, is mounted in a battery case and in which a cathode terminal and an anode terminal protrude from a first outer circumference of the battery case and a second outer circumference of the battery case opposite to the first outer circumference of the battery case is curved when viewed from above.

Abstract: A battery pack assembly comprises at least one light emitting device, a switch for operating the light emitting devices, a case, and a battery pack. The battery pack assembly includes a support portion, an elastic connection portion, a button and an observation portion. The support portion is fixed to an inside of the case. The elastic connection portion is extended from one side of the support portion. The button is formed at an end portion of the elastic connection portion. The observation portion is fixed between the support portion and the case, and is configured to allow light emitted from the light emitting devices to pass therethrough. In the battery pack assembly, the button is exposed through the button hole, and light passing through the observation portion is exposed through the observation holes.

Abstract: A small-sized lithium-ion secondary battery which can be produced at a low cost with a high degree of productivity and which has high degrees of output density and cell performance. The lithium-ion secondary battery includes a plurality of laminar sheets 16 laminated on each other. Each laminar sheet 16 includes a positive electrode sheet 12 consisting of a positive electrode active substance layer 20 and a first solid electrolyte layer 24 laminated integrally on each of the opposite surfaces of a positive electrode collector foil 18, and a negative electrode sheet 14 consisting of a negative electrode active substance layer 28 and a second solid electrolyte layer 32 laminated integrally on each of the opposite surfaces of a negative electrode collector foil 26.

Abstract: A battery pack that includes a battery cell having a positive and negative electrode terminal extending from a side of the battery cell. The positive and negative electrode terminal each have a non-exposed surface and an exposed surface. The battery pack also includes a case that includes a first case and a second case. The first case includes a first terminal guide unit to accommodate the positive electrode terminal with the non-exposed surface of the positive electrode terminal facing the first terminal guide. The second case includes a second terminal guide unit that accommodates the negative electrode terminal. The non-exposed surface of the negative electrode terminal faces the second terminal guide. The first case and the second case are coupled together with the battery cell positioned between the first case and the second case.

Abstract: An electrode/separator assembly for use in an electrochemical cell includes a current collector; a porous composite electrode layer adhered to the current collector, said electrode layer comprising at least electroactive particles and a binder; and a porous composite separator layer comprising inorganic particles substantially uniformly distributed in a polymer matrix to form nanopores and having a pore volume fraction of at least 25%, wherein the separator layer is secured to the electrode layer by a solvent weld at the interface between the two layers, said weld comprising a mixture of the binder and the polymer. Methods of making and using the assembly are also described.

Abstract: Disclosed is a method for manufacturing a battery cell including an electrode assembly and electrolyte provided in a battery case composed of a laminate sheet having a resin layer and a metal layer, which includes; (a) thermally fusing and sealing the periphery of the case except for an end part thereof while the electrode assembly is mounted in the case; (b) introducing the electrolyte through the unsealed end part then sealing the same by thermal fusion; (c) charging and discharging the battery cell to activate the same; (d) puncturing the unsealed part inside the end part to form a through-hole communicating with the inside of the case; and (e) pulling top and bottom faces of the battery case in the opposite direction to each other at the unsealed part to open the same while applying vacuum pressure, to thereby remove the gas generated during activation as well as excess electrolyte.

Abstract: Disclosed herein is a secondary battery pack including a battery cell having a pair of coupling grooves, each of the coupling grooves having a predetermined depth, an insulative mounting member mounted to the top of the battery cell, a protection circuit module (PCM) having a pair of connection coupling members protruding downward, and an insulative cap coupled to the top of the battery cell, wherein the connection coupling members are inserted into coupling grooves formed at electrode terminals of the battery cell through openings of the insulative mounting member in a state in which the insulative mounting member is mounted to the top of the battery cell, thereby achieving the coupling of the PCM to the battery cell and the insulative mounting member and the electrical connection between the battery cell and the PCM.

Abstract: When an electrode material having a weight-average mesopore/macropore specific surface area within a specific range is used, there arises an expansion of a cell caused by the generation of decomposed gas from a component of electrolyte solution during the pre-doping process of lithium ions. A potential drop upon the pre-doping process is adjusted so as to reduce or suppress the expansion of the cell. Specifically, since the pre-doping speed is increased, the negative electrode can speedily reach the potential by which an SEI component made of lithium alkyl carbonate can be produced on the surface of the negative electrode. Consequently, the absolute amount of the gas produced by the decomposition of the electrolyte solution can be reduced, whereby the expansion of the electric storage device can be reduced.

Abstract: The present invention relates to an electrode assembly, and more specifically to an electrode assembly for a polymer secondary battery cell, including a cell stack part defined by stacking at least one radical unit having a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are stacked in turn, wherein at least one of the first electrode and the second electrode has a size corresponding to 99.7% to 100% of a size of the first separator or the second separator and thus is aligned to be coincided with or close to an end of the first separator or the second separator.

Abstract: An apparatus is provided that includes a two or more cell elements stacked internally to create a single cell with a non-uniform height. A first bus bar may electrically couple to a first side or first end of the cell elements in order to connect the terminals of the battery elements. A second bus bar may electrically couple to a second side or second end of the cell elements in order to connect the terminals of the battery elements.

Abstract: Provided is a flat plate electrode cell, comprises positive electrode plates and negative electrode plates. The positive electrode plates each comprise manganese and compressed metal foam. The negative electrode plates each comprise zinc and compressed metal foam. Both the positive and negative electrodes can have alignment tabs, wherein the flat plate electrode cell can further comprise electrical terminals tanned from the aligned tabs. The rechargeable flat plate electrode cell of the present disclosure, formed from compressed metal foam, provides both low resistance and high rate performance to the electrodes and the cell. Examples of improvements over round bobbin and flat plate cells are current density, memory effect, shelf life, charge retention, and voltage level of discharge curve. In particular, the rechargeable flat plate electrode cell of the present disclosure provides longer cycle life with reduced capacity fade as compared with known round bobbin and flat plate cells.

Abstract: Provided is a flat plate electrode cell, comprises positive electrode plates and negative electrode plates. The positive electrode plates each comprise manganese and compressed metal foam. The negative electrode plates each comprise zinc and compressed metal foam. Both the positive and negative electrodes can have alignment tabs, wherein the flat plate electrode cell can further comprise electrical terminals formed from the aligned tabs. The rechargeable flat plate electrode cell of the present disclosure, formed from compressed metal foam, provides both low resistance and high rate performance to the electrodes and the cell. Examples of improvements over round bobbin and flat plate cells are current density, memory effect, shelf life, charge retention, and voltage level of discharge curve. In particular, the rechargeable flat plate electrode cell of the present disclosure provides longer cycle life with reduced capacity fade as compared with known round bobbin and flat plate cells.

Abstract: Provided is a flat plate electrode cell, comprises positive electrode plates and negative electrode plates. The positive electrode plates each comprise manganese and compressed metal foam. The negative electrode plates each comprise zinc and compressed metal foam. Both the positive and negative electrodes can have alignment tabs, wherein the flat plate electrode cell can further comprise electrical terminals tanned from the aligned tabs. The rechargeable flat plate electrode cell of the present disclosure, formed from compressed metal foam, provides both low resistance and high rate performance to the electrodes and the cell. Examples of improvements over round bobbin and flat plate cells are current density, memory effect, shelf life, charge retention, and voltage level of discharge curve. In particular, the rechargeable flat plate electrode cell of the present disclosure provides longer cycle life with reduced capacity fade as compared with known round bobbin and flat plate cells.

Abstract: A lithium sulfur cell has a cathode including Li3PS4+n (0<n<9), an electrolyte, and an anode comprising lithium. A cathode for a lithium sulfur cell is also disclosed.

Abstract: Even when a battery is produced with a positive electrode active material or a positive electrode containing the positive electrode active material after exposure to the air, battery properties such as a charge storage property can be significantly enhanced. Included are a lithium transition metal compound oxide at least containing nickel and manganese such that the nickel is contained in a higher content than the manganese in terms of moles; and sodium fluoride adhering to a surface of the lithium transition metal compound oxide. The lithium transition metal compound oxide may contain cobalt.

Abstract: According to an embodiment, a battery includes a cap plate, the cap plate having an opening penetrating therethrough and having at least a first protrusion extending from a first side, an electrode terminal extending through the opening in the cap plate, a collector extending from the electrode terminal, and a gasket interposed between a portion of the electrode terminal and the first side of the cap plate, the first protrusion extending through the gasket and the collector.

Abstract: The present invention is directed to a higher power, thin film lithium-ion electrolyte on a metallic substrate, enabling mass-produced solid-state lithium batteries. High-temperature thermodynamic equilibrium processing enables co-firing of oxides and base metals, providing a means to integrate the crystalline, lithium-stable, fast lithium-ion conductor lanthanum lithium tantalate (La1/3-xLi3xTaO3) directly with a thin metal foil current collector appropriate for a lithium-free solid-state battery.

Abstract: The disclosed embodiments relate to a battery cell which includes a set of electrode sheets of different dimensions arranged in a stacked configuration to facilitate efficient use of space inside a portable electronic device. For example, the electrode sheets may be arranged in the stacked configuration to accommodate a shape of the portable electronic device. The stacked configuration may be based on a non-rectangular battery design such as a toroidal design, an L-shaped design, a triangular design, a pie-shaped design, a cone-shaped design, and/or a pyramidal design.

Abstract: A solid state battery includes a flexible polymer sheet, and an array of solid state pillars supported by and extending through the sheet. Each of the pillars has an anode layer, a cathode layer adjacent, and an inorganic solid electrolyte (ISE) layer interposed between the anode and cathode layers. A flexible electrochemical membrane includes a flexible polymer sheet, and an array of inorganic solid electrolyte pillars supported by the polymer sheet with each of the pillars extending through a thickness of the sheet to form an ionically conductive pathway therethrough.

Abstract: A lithium secondary battery includes an electrode assembly having at least one tab which projects from one side of the electrode assembly, an external finishing material surrounding and sealing the tab except a distal end portion thereof and the electrode assembly, and polymer films interposed between the external finishing material and the tab to improve adhesion therebetween. When the tab has a thickness no less than a predetermined thickness, the tab is formed to have a sectional shape which ensures that an inside angle defined by one of upper and lower surfaces of the tab and an adjacent side surface of the tab becomes an obtuse angle, and the polymer films are formed to have protuberances on the inner surfaces thereof, so as to improve bondability between the tab and the polymer films.

Abstract: A power storage device includes an electrode assembly formed by stacking a positive electrode sheet, a negative electrode sheet, and a sheet-like separator arranged between the positive and negative electrode sheets. The positive electrode sheet includes a positive electrode thin metal plate, which includes a first positive electrode edge and a second positive electrode edge. A surface of the positive electrode sheet includes a positive electrode application region and a positive electrode non-application region. The negative electrode sheet includes a negative electrode thin metal plate including a first negative electrode edge and a second negative electrode edge. A positive electrode border, which is a border between the positive electrode application region and the positive electrode non-application region, is located between the first positive electrode edge and the second positive electrode edge.

Abstract: A nonaqueous electrolyte battery includes a flattened electrode group, a case, a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is bent around one edge portion of the positive electrode terminal, curved toward the electrode group and reaches a sealed portion. The other edge portion of the positive electrode terminal extends from the case through the sealed portion. The negative electrode terminal is bent around one edge portion of the negative electrode terminal, curved toward the electrode group and reaches the sealed portion. The other edge portion of the negative electrode terminal extends from the case through the sealed portion. The positive electrode terminal satisfies formula (1) given below and the negative electrode terminal satisfies formula (2) given below: t2×W2?0.25 Sp??(1) t3×W3?0.

Abstract: Embodiments are disclosed that relate to increasing heat transfer in a steam reformer. For example, one disclosed embodiment provides a steam reformer including an outer wall and an inner wall which includes a step extending outward toward the outer wall and downward toward a bottom of the steam reformer at a position between a top of the steam reformer and the bottom of the steam reformer. The steam reformer further includes a reaction chamber disposed between the outer wall and the inner wall.

Abstract: A thin film lithium-ion battery unit includes a positive current collecting substrate, a positive electrode active material layer on an inner surface of the positive current collecting substrate, a negative current collecting substrate, a negative electrode active material layer on an inner surface of the negative current collecting substrate, a separator between the positive electrode active material layer and the negative electrode active material layer, and electrolyte retained at least in the separator. The positive electrode active material layer, the separator and the negative electrode active material layer constitute a laminated electric core. An outer conductive frame is spaced apart from the positive current collecting substrate and encompasses the positive current collecting substrate.

Abstract: An electrochemical element comprises a container and a sealing plate for sealing an opening of the container. The container is sealed with the sealing plate by welding a portion of the brazing material on the sealing plate and a portion of the metal film of the container which make contact with each other together in a state where a first electrode active material, a separator, a second electrode active material and an electrolyte are contained in the container. An electricity collector sheet is electrically connected to the first electrode active material or the second electrode active material, whichever is closer to the opening of the container. At least a portion of the electricity collector sheet extends to the end portion of the container so that the container and the sealing plate are welded together with the extending portion of the electricity collector sheet in between.

Abstract: A lithium microbattery comprises a packaging thin layer formed by a matrix of polymer material in which metallic particles are dispersed. The packaging thin layer constitutes at least a part of the anodic current collector of the lithium microbattery. The polymer material is advantageously obtained from at least a photopolymerizable precursor material chosen from bisphenol A diglycidylether, bisphenol F butanediol diglycidil ether, 7-oxabicylco[4.1.0]heptane-3-carboxylate of 7-oxabicylco[4.1.0]hept-3-ylmethyl and a mixture of bisphenol A and epichloridine. It can also be a copolymer obtained from a homogenous mixture of at least two photopolymerizable precursor materials, respectively acrylate-base, such as diacrylate 1,6-hexanediol and methacrylate, and epoxide-base, for example chosen from bisphenol A diglycidylether, 7-oxabicylco[4.1.0]heptane-3-carboxylate of 7-oxabicylco[4.1.0]hept-3-ylmethyl and a mixture of bisphenol A and epichloridine.

Abstract: In a lead-acid storage battery including a container housing elements formed by alternately layering positive electrode plates and negative electrode plates with deformable separators interposed therebetween, the container includes a narrow portion having a small inside dimension in a width direction intersecting a layered direction of the elements, widths of the respective plates are smaller than the inside dimension in the width direction of the narrow portion of the container, and widths of the separators are greater than or equal to the inside dimension of the narrow portion of the container.

Abstract: A double-sealed thin film electrochemical pouch cell, comprising a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector, which is double-sealed by a first inner laminate layer forming a primary seal covered by a second outer polymer layer forming a secondary seal. The second outer polymer layer comprises embedded particles to increase the thermal conductivity of the second outer polymer layer.

Abstract: A device is provided that includes a battery layer on a substrate, where a first battery cell is formed in the battery layer. The first battery cell includes a first anode, a first cathode, and a first electrolyte arranged between the first anode and the first cathode, where the first anode, the first cathode, and the first electrolyte are arranged in the battery layer such that perpendicular projections onto the substrate of each of the first anode and the first cathode are non-overlapping. A method of manufacturing such device is also provided. A system is also provide that includes such device for supplying power to an electronic device.

Abstract: Disclosed are a thin film battery in which a negative electrode active material and a substrate side react with each other to prevent battery performance from deteriorating, and to a method for manufacturing same. The thin film battery according to the present invention has a structure in which a negative electrode active material contacts a substrate. Here, a first surface treatment layer containing the negative electrode active material and a non-reactive material are disposed on at least the portion where the negative electrode active material contacts the surface of the substrate.

Abstract: A thin film solid state battery configured with barrier regions formed on a flexible substrate member and method. The method includes forming a bottom thin film barrier material overlying and directly contacting a surface region of a substrate. A first current collector region can be formed overlying the bottom barrier material and forming a first cathode material overlying the first current collector region. A first electrolyte can be formed overlying the first cathode material, and a second current collector region can be formed overlying the first anode material. The method also includes forming an intermediary thin film barrier material overlying the second current collector region and forming a top thin film barrier material overlying the second electrochemical cell. The solid state battery can comprise the elements described in the method of fabrication.

Abstract: A secondary battery and a method of manufacturing the secondary battery. A secondary battery includes an electrode assembly formed through winding a positive electrode plate including a positive electrode non-coating portion, a negative electrode plate including a negative electrode non-coating portion, and a separator between the positive and negative electrode plates. A part of the positive electrode non-coating portion and a part of the negative electrode non-coating portion are removed to form a positive electrode tab and a negative electrode tab at first and second ends, respectively, of the electrode assembly.

Abstract: A card battery to charge and/or discharge an external electronic apparatus, the card battery including: a card battery body including a bare cell and a first substrate electrically connected to the bare cell; and a connector including a protection circuit module electrically connected to the card battery body.