Abstract: A sealed battery includes a battery case with a liquid inlet, a power generating element in the case, a lid member closing the liquid inlet and having a peripheral edge welded to the case over the entire circumference, a circular groove in the outer surface of the case and around the entire periphery of the liquid inlet, a peripheral portion provided over the entire periphery of a portion in the back surface of the lid member facing the liquid inlet, and a protrusion partially placed around the liquid inlet between the circular groove and the peripheral portion to form a clearance between the circular groove and the peripheral portion. The space facing the inner surface in a portion melted during welding between the peripheral edge and the case is continuous to the liquid inlet through a clearance formed by the protrusion between the circular groove and the peripheral portion.

Abstract: The invention relates to a galvanic cell (1) substantially prismatic in design, comprising an electrode stack (2) having at least one anode (3, 3a), one cathode (4, 4a), and one separator. The separator (5) is provided for at least partially receiving an electrolyte. The galvanic cell further comprises at least two housing parts (6, 7) at least partially enclosing the electrode stack. At least one assembly seam (8, 8a) connects the at least two housing parts at least in parts. The galvanic cell is characterized in that the at least one assembly seam is elastic in design.

Abstract: An embodiment is directed to a battery, including a housing, an electrode assembly in the housing, the electrode assembly including a first electrode member, a separator, and a second electrode member wound about a first axis, the first axis extending in a first direction, the electrode assembly having a thickness in a second direction orthogonal to the first direction and having a length in a third direction orthogonal to the first and second directions, the length being greater than the thickness, the electrode assembly having a curvature about a second axis that is parallel to the first axis, and first and second electrode tabs, the first electrode tab and the second electrode tab being connected to the first electrode member and the second electrode member, respectively, the first and second electrode tabs protruding from the electrode assembly in a direction orthogonal to the first direction.

Abstract: The disclosed embodiments provide a battery cell. The battery cell includes a jelly roll enclosed in a pouch, wherein the jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. To create the pouch, a first cup and a second cup are formed in a flexible sheet of pouch material based on a terrace position in the battery cell that facilitates efficient use of space within a portable electronic device. The second cup is folded over the first cup, and a terrace seal is formed at the terrace position by sealing the jelly roll in the pouch along a rim of the first and second cups.

Abstract: A secondary battery, a method of assembling the same, and a battery pack including the secondary battery, the secondary battery including an electrode assembly; a collecting terminal electrically connected to the electrode assembly; a terminal plate electrically connected to the collecting terminal, the terminal plate including a slide groove on an upper side thereof; and a coupling terminal connected to the terminal plate, wherein the coupling terminal is slide-coupled with the slide groove of the terminal plate.

Abstract: A cylindrical Ni—Zn battery includes a battery shell, an electrode assembly and a liquid electrolyte which are sealed within the shell. The electrode assembly, whose upper part is connected to a cap, includes a nickel cathode, zinc anode, and a composite membrane. The nickel cathode and zinc anode have an edge portion which are externally exposed and bent inwardly to form the anode and cathode conductive end respectively, and edges of the composite membranes are sealed together, so that the electrodes are contained in the membranes. The battery is characterized by the simple in structure, convenient installation, low cost, safety, characteristics of long-term storage, effectively preventing the growth of dendrite, long life, strong capability to resist shake, and good performance of large current discharging.

Abstract: The invention relates to a battery housing (1) for receiving one or more battery cells (2), comprising a cover surface (3), a floor surface (4), and a sealing plate (5) disposed between the cover surface and the floor surface. The invention further relates to a retaining frame (10) for a battery cell (2), comprising a floor part (11), a cover part (12), and a sealing part (12) disposed between the floor part and the cover part.

Abstract: The present invention is related to electrochemical energy generation devices including at least one electrode comprising an electrochemically active fluid that is enclosed within the cell, as well as related articles, systems, and methods. In some embodiments, the anode and/or cathode of the electrochemical energy generation devices described herein can be formed of an electrochemically active fluid, such as a semi-solid or a redox active ion-storing liquid. The electrochemical energy generation device can be configured such that the anode and/or cathode can be flowed into their respective electrode compartments, for example, during assembly. During operation, on the other hand, little or none of the electrochemically active fluid(s) are transported into or out of the energy generation device (e.g., out of the electrode compartments of the electrochemical energy generation device).

Abstract: A sealed battery includes: a columnar battery case encapsulating a chargeable/dischargeable electrode assembly and electrolyte in an interior and having a vent that cleaves up when a pressure in the interior exceeds a threshold; a cover that covers at least a portion of an outer surface of the vent of the battery case to prevent the vent from being covered with resin which is formed on the battery case; and a temperature protection device electrically connected with a terminal of the battery case and capable of blocking electric current when a temperature exceeds a threshold. The cover includes an overhang located to cover at least a portion of the temperature protection device when the temperature protection device is mounted on the cover. The temperature protection device is at least partially covered with the overhang and, together with the cover, covered with the resin.

Abstract: Method for producing an electrochemical cell (1), wherein the electrochemical cell (1) comprises at least one electrode stack that is received inside a jacket (2), wherein the jacket (2) is formed by at least two jacket parts (3), wherein each jacket part (3) comprises at least one seam surface (5) with which the jacket parts (3) can be brought at least partially in contact, comprising the following method steps: adding a defined amount of auxiliary sealant (9) at least indirectly to a delimited section (8) of the seam surface (5) of at least one jacket part (3); bringing the seam surface (5) of one of the jacket parts (3) in contact with the seam surface (5) of another jacket part (3); subsequently applying heat to the seam surfaces (5).

Abstract: A closure assembly for an electrochemical cell including a container and an end assembly sealing an open end of the container in order to minimize mass or weight loss of the cell due to electrolyte vapor transmission is disclosed. The end assembly is provided with a vent member capable of venting a fluid when the pressure within the cell exceeds a predetermined limit; a contact member operatively in electrical contact with a conductive contact of the end assembly and a current collector of an electrode of the cell; and an insulating, polymeric seal member disposed at least between conductive components of the closure assembly having different polarities. In a preferred embodiment, the seal member has a selected dimensional ratio in order to minimize vapor transmission of the electrolyte through the seal member.

Abstract: The present invention provides a lithium ion battery including a battery can, a battery cell received in the battery can, electrolyte filled in the battery can, and a battery cover sealing the battery can. The battery can is formed with a flange portion, and the battery cover is formed with a skirt portion corresponding to the flange portion. The skirt portion of the battery cover tightly wraps the flange portion of the battery can, and the skirt portion and the flange portion wrapped in the skirt portion are tightly wound and bent to the battery can, so as to realize desirable sealing between the battery can and the battery cover.

Abstract: Design of a rapidly rechargeable gas battery is disclosed. In one embodiment, a rapidly rechargeable gas battery is constructed of a plurality of high surface area, gas adsorbing electrodes and an electrolyte, wherein, during charging operation, gases are formed and adsorbed at the plurality of electrodes such that they generate an electrochemical potential for discharge of the cell formed by electrodes and electrolyte until the state-of-charge has become negligible (deep discharge). The rapidly rechargeable gas battery is designed such that it can withstand high charging current and a deep discharge without irreversible changes in the electrode materials.

Abstract: A battery part such as a battery terminal and method of making the same with the battery part having a sealing region or sealing bead located on a lateral face of the acid ring with the beveled sealing region increasing the resistance to leakage therepast as the container shrinks. Another embodiment of the invention comprises a battery part with a bifurcated acid ring end and a beveled end face. The invention further includes the method of forming a battery terminal with an end face of the acid ring having a bifurcated end lip and a beveled face that permits one to either use the battery terminal in an as is condition or in a flared condition wherein a lip on the acid ring is flared to form a beveled sealing region on the lateral face of the acid ring.

Abstract: An exemplary manufacturing method for a battery is provided in the present invention. The manufacturing method includes step S1: providing a high polymer solution; step S2: providing a negative-electrode structure; step S3: providing a separation structure; step S4: assembling the negative-electrode and the separation structure into a housing; and step S5: inserting a current collector into the housing and filling a positive-electrode material therein to form a positive-electrode structure. At least one of the negative-electrode structure and the positive-electrode structure comprise chlorophyll. Thus, the manufacturing process of the battery is simple, and economical, and natural and non-toxic substances are used. Unlike the manufacturing process of conventional batteries, the battery manufactured according to embodiments of the present invention will not cause environmental pollution even when it is discarded after being used.

Abstract: The present invention relates to a method for manufacturing a flat-plate battery. The method includes step S1: providing a chlorophyll layer; step S2: providing a first separator and a second separator absorbing a solution of organic salt respectively; step S3: providing a negative-electrode layer; step S4: coating the first separator on the negative-electrode layer; step S5: coating the chlorophyll layer thereon; step S6: coating the second separator thereon; step S7: coating a positive-electrode layer thereon; and step S8: sandwiching them between an upper plate and a lower plate. The flat-plate battery manufactured by the method can store hydrogen by the chlorophyll of the chlorophyll layer, and this method will not cause environmental pollution even when the flat-plate battery is discarded after use.

Abstract: An enclosure for an energy storage device is presently disclosed. The enclosure includes a cell housing having a base portion and at least one side portion seamlessly extending from the base portion to define a volume and having a peripheral edge defining an aperture distal from the base portion through which an electrochemical cell may be disposed within the volume, and a cover securable to the peripheral edge of the housing, where the housing and cover are configured to house at least one electrochemical cell at an operating temperature greater than about 100 degrees Celsius. The enclosure may also include an environmental housing configured to nestingly receive the cell housing, and an insulating element disposed between the environmental housing and the cell housing. Also disclosed is a method of packaging the energy storage device utilizing the enclosure.

Abstract: The present invention relates generally to a metal canned battery that does not suffer reduced effectiveness in mechanical reliability upon dropping or vibration. More particularly, the invention pertains to a metal canned battery that has a substance therein that causes the electrode assembly to adhere to the exterior can. In one aspect, the battery is of a winding type wherein a cathode and an anode sheet are wound along with a polymer separator between them to form a jelly roll that is inserted into a cylindrical or prismatic metal can. The jelly roll is wrapped with an adhesive polymer layer or the inner wall of the metal can is coated with an adhesive polymer layer. The polymer layer is capable of swelling in a non-aqueous liquid electrolyte to provide a good adhesive between the metal can and the jelly roll and thereby improve the mechanical reliability and safety of the battery during drop or vibration.

Abstract: One example includes a battery that includes a stack of at least one substantially planar anode and at least one substantially planar cathode, wherein the stack defines a contoured exterior, and a battery housing enclosing the stack, the battery housing defining a battery housing exterior, wherein the contoured exterior of the stack is shaped to conform to a contoured interior of the battery housing that approximately conforms to the battery housing exterior, the battery produced by the process of modeling, using fluid dynamics, an exterior of a biocompatible housing and shaping the battery housing to conform to at least some of the exterior of the biocompatible housing.

Abstract: A gasket for a bipolar battery comprises a structural part in the shape of a frame having an upper surface and a lower surface, and at least one channel to permit gas passage through the gasket. The structural part may be made from a first material having hydrophobic properties. The gasket further comprises at least a first sealing surface arranged in a closed loop projecting from the upper surface, and at least a second sealing surface arranged in a closed loop projecting from the lower surface. The first and the second sealing surfaces are provided on at least one sealing part, are made from a second material, and the first material of the structural part has a higher elastic modulus than an elastic modulus of the second material of the sealing parts. A bipolar battery and a method for manufacturing a gasket are also disclosed.

Abstract: There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes: an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator; and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a layered structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of ? mol relative to the total content ? mol of moisture to be mixed in the cell. ? satisfies ?1.3?log(?/?)?1.

Abstract: Technologies are generally described for a battery, a method for implementing a battery and a rechargeable battery system. In some examples, the rechargeable battery system includes a battery. The battery may include a first electrode including a tantalum component, a vanadium component and a boron component. The battery may further include a second electrode and an electrical insulator between the first and the second electrode. The battery system may include a housing, where the housing includes the first electrode, and where the housing is effective to communicate light and oxygen to the first electrode. A sensor may be disposed so as to be effective to detect a reaction of tantalum and oxygen in the housing and generate a reaction signal in response. A processor may be in electrical communication with the sensor and effective to receive the reaction signal and generate an indication based on the reaction signal.

Abstract: There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator, and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a spinel type structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of ? mol relative to the total content ? mol of moisture to be mixed in the cell. ? satisfies ?0.8 log(?/?)?1.5.

Abstract: A battery pack and a manufacturing method thereof enabling the streamlining of assembly work are provided. This battery pack comprises a printed circuit board 6 including wiring, lead plates 7, 10 that are fixed to the printed circuit board 6 and that electrically connect the wiring of the printed circuit board 6 and both electrodes 4, 5 of a battery 2, and a screw 12 that presses the lead plates 7, 10 so as to maintain a state of electrically connecting of the lead plates 7, 10 to both electrodes 4, 5 of the battery 2 by being screwed into the battery 2.

Abstract: An alkaline dry battery of this invention includes: a cylindrical battery case with a bottom; a cylindrical positive electrode having a hollow, being in contact with an inner face of the battery case, and containing a manganese dioxide powder and a graphite powder; a negative electrode disposed in the hollow of the positive electrode; a separator interposed between the positive electrode and the negative electrode; and an alkaline electrolyte. The positive electrode has cracks therein, and the cracks are substantially arc-shaped in a cross-section perpendicular to the axial direction of the positive electrode and extend in the axial direction of the positive electrode. The positive electrode has a manganese dioxide density of 2.15 to 2.30 g/cm3.

Abstract: A sealed battery including: an electrode group 4 formed by winding or stacking a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed between the positive electrode plate 1 and the negative electrode plate 2, and housed in a battery case 5, an opening of the battery case 5 being sealed with a sealing plate, wherein a lead 11 extending from one of the electrode plates in the electrode group 4 is laser-welded to the sealing plate 10, and a melting width of an end section 13 of a welded portion 9 between the lead 11 and the sealing plate 10 is smaller than a melting width of a center section of the welded portion 9.

Abstract: A method for production of a membrane/electrode unit for a fuel cell is disclosed. The conducting polymer membrane is compressed with two electrodes until a given compression is achieved. The method permits an increase in resting voltage of the membrane/electrode unit in use, the amount of damage during production is reduced, and a constant thickness within a production run is achieved.

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: The present invention provides a step (S1) for manufacturing a battery (10), which includes a case (30) having through holes (33), electric terminals (40) projecting outward from the case (30) and fixed to the holes (33), and insulating members (50) interposed between the case (30) and the terminals (40). In the step (S1), a flanged portion (34) standing out from the case (30), located around the hole (33) is formed, a reinforcing member (35) is fitted to the outer periphery of the flanged portion (34) that reinforces against the outward force applied to the flanged portion (34), and the terminal (40) and the insulating member (50) are inserted into the flanged portion (34), and then the flanged portion (34) is press-fitted from the outside of the case (30) for fixing the terminal (40) to the hole (33). According to the present invention, the battery with high sealing property at the fitted portion among the case and the terminal.

Abstract: Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries.

Abstract: A method for producing an assembled battery, comprising the following steps: (a) producing a plurality of unit cells; (b) arranging the plurality of unit cells in a nested manner such that one unit cell is disposed within another unit cell; and (c) electrically connecting the plurality of unit cells with one another in parallel or in series. The problem that toroidal batteries with high capacity, high power density and small thickness may have a large volume and low energy density is solved by connecting in parallel a plurality of unit cells nested within one another, and heat dissipation of the battery is also further improved. An assembled battery produced by the method is also provided.

Abstract: An energy storage device may include a housing and a fluid access aperture extending through a sidewall of housing that is used to fill the device with electrolytic fluid. In some examples, the fluid access aperture may define a length extending through the housing that is greater than a major width that extends across a cross-sectional area of the fluid access aperture. In some additional examples, the fluid access aperture may be angled relative to an axis that is substantially orthogonal to the housing. Depending on the situation, such example fluid access apertures may prevent electrolytic fluid from escaping from the energy storage device while the fluid access aperture is being sealed.

Abstract: The disclosed embodiments relate to the design of a battery cell with multiple thicknesses. This battery cell includes a jelly roll enclosed in a pouch, wherein the jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode. The jelly roll is enclosed in a flexible pouch, and the first and second conductive tabs are extended through seals in the pouch to provide terminals for the battery cell. Furthermore, the battery cell has two or more thicknesses, wherein the different thicknesses are created by removing material from one or more of the layers before winding the layers together.

Abstract: A method for manufacturing a cable-type secondary battery includes: preparing a first polarity current collector having a long and thin shape; forming at least two first polarity electrode active material layers on the first polarity current collector to be spaced apart from each other in the longitudinal direction; forming an electrolyte layer to surround at least two first polarity electrode active material layers; forming at least two second polarity electrode active material layers on the electrolyte layer to be spaced apart from each other at positions corresponding to the first polarity electrode active material layers; forming an electrode assembly by surrounding the second polarity electrode active material layers with a second polarity current collector; surrounding the electrode assembly with a cover member; and bending the electrode assembly and the cover member into a substantially “S” shape with respect to a space between the first polarity electrode active material layers.

Abstract: A button cell includes a housing consisting of two metal housing halves, an electrode separator assembly in the form of a preferably spiral-shaped winding inside the housing, and metal conductors which electrically connect the electrodes of the assembly to the housing halves, wherein at least one of the conductors is connected to the respective housing half by welding.

Abstract: A cable-type secondary battery includes an electrode assembly, which has a first polarity current collector having a long and thin shape, at least two first polarity electrode active material layers formed on the first polarity current collector to be spaced apart in the longitudinal direction, an electrolyte layer filled to surround at least two first polarity electrode active material layers, at least two second polarity electrode active material layers formed on the electrolyte layer to be spaced apart at positions corresponding to the first polarity electrode active material layers, and a second polarity current collector configured to surround the outer surfaces of the second polarity electrode active material layers, the electrode assembly being continuously bent into a substantially “S” shape by a space between the first polarity electrode active material layers; and a cover member configured to surround the electrode assembly which is continuously bent into a substantially “S” shape.

Abstract: A battery includes a power generation element, a case member having an accommodation recess for accommodating the power generation element and including first and second sides, and an opening closure member for closing the accommodation recess. A case inside part of the opening closure member contacts a first center edge of a first edge of the first side to prevent warping deformation of the first edge toward the accommodation recess, and is spaced from a first-first end and a first-second end. In addition, the opening closure member contacts a second center edge of a second edge of the second side to prevent warping deformation of the second edge toward the accommodation recess, and is spaced from a second-first end and a second-second end. The case member and the opening closure member are secured to each other at a welded part around their entire periphery.

Abstract: A method for manufacturing a cylindrical battery includes allowing a cylindrical battery case (5) with a bottom to contain an electrode plate group, carrying out a groove-forming processing on an outside periphery of an opening of the battery case, disposing a sealing plate in the opening of the battery case through a gasket, and crimping and sealing the end of the opening of the battery case.

Abstract: A rechargeable battery having an electrode assembly formed by depositing/spiral-winding an positive electrode and a negative electrode on respective surfaces of a separator; a can including a pipe having a side seam portion to enclose the electrode assembly and a bottom plate bonded to a first opening of the pipe by a bottom seam portion to close and seal the first opening and facing an end portion of the electrode assembly; and a cap assembly bonded to a second opening of the pipe formed at the other side of the bottom plate to close and seal the second opening.

Abstract: A method of making a molten sodium battery is disclosed. A first metallic interconnect frame having a first interconnect vent hole is provided. A second metallic interconnect frame having a second interconnect vent hole is also provided. An electrolyte plate having a cathode vent hole and an anode vent hole is interposed between the metallic interconnect frames. The metallic interconnect frames and the electrolyte plate are sealed thereby forming gaseous communication between an anode chamber through the anode vent hole and gaseous communication between a cathode chamber through the cathode vent hole.

Abstract: The present invention aims to provide a method for manufacturing a prismatic sealed cell having a good reliability of sealing. This object is realized with the following configuration. The method of manufacturing a sealed cell comprises the following steps: fitting a substantially planar rectangular sealing plate to the opening of a prismatic outer casing; and irradiating a high energy beam so that the spot center of the beam is shifted (offset) from the fitted portion to the sealing plate side in order to seal the sealing plate and the outer casing. In this method, the maximum distance from the outer periphery the sealing plate to the spot center at the four corners of the sealing plate is longer than the distance from the outer periphery of the sealing plate to the spot center at a linear portion of the sealing plate.

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: One example includes a battery case sealed to retain electrolyte, an electrode disposed in the battery case, the electrode comprising a current collector formed of a framework defining open areas disposed along three axes (“framework”), the framework electrically conductive, with active material disposed in the open areas; a conductor electrically coupled to the electrode and sealingly extending through the battery case to a terminal disposed on an exterior of the battery case, a further electrode disposed in the battery case, a separator disposed between the electrode and the further electrode and a further terminal disposed on the exterior of the battery case and in electrical communication with the further electrode, with the terminal and the further terminal electrically isolated from one another.

Abstract: According to one embodiment, a sealed secondary battery is provided with a container body having an opening and accommodating an electrode assembly and an electrolyte, a sealing plate which seals the opening of the container body, the sealing plate having an injection hole which is formed penetrating the sealing. plate and through which the electrolyte is injected into the container body, and a sealing body positioned with an annular vacant space above a surface region of the sealing plate around the injection hole therein and welded at a peripheral edge portion thereof to the sealing plate, thereby sealing the injection hole.

Abstract: A bipolar secondary battery includes a power generating element in which a bipolar electrode and an electrolyte layer are stacked. The bipolar electrode includes a positive-electrode active material layer formed on one surface of a current collector and a negative-electrode active material layer formed on the opposing surface of the current collector. Peripheral edges of the bipolar electrode and electrolyte layer are bonded through a seal. Edges of the positive-electrode active material layer and the negative-electrode active material layer on opposite surfaces of a respective current collector are offset from each other. The edge of a seal portion facing an inner edge of the edges of the positive-electrode active material layer and the negative-electrode active material layer is positioned inside an outer edge of the edges of the positive-electrode active material layer and the negative-electrode active material layer.

Abstract: The present invention discloses a polymer lithium-ion battery manufacturing method. With the method, first preparing the electrolyte, and then injecting the electrolyte into a battery; after aging and activating the semi-product, processes of evacuating, sealing, and capacity grading are required to complete the battery. In order to overcome the defects of the convention batteries in production and performance, the present invention creatively chooses the polymer with appropriate molecular weight and other functional ingredients for the electrolyte, whereby the safety performance, service lifetime, high and low temperature performance and rate capacity of the batteries are significantly improved, and the battery production according to the present invention is simple and ease to perform.

Abstract: Provided are lithium batteries comprising (a) a separator/electrode assembly of a current collector layer interposed between two electrode layers of one polarity bonded to a porous separator layer on each electrode surface, wherein each electrode layer is coated directly on a separator layer, (b) an electrode of the opposite polarity with a current collector layer interposed between two electrode layers of the opposite polarity, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/electrode assembly and the electrode of the opposite polarity. Preferably, a portion of the assembly is not in contact with the electrode of the opposite polarity and a portion of the electrode of opposite polarity is not in contact with the assembly, and an electrically conductive device independently connects the portions of each polarity for effective current collection. Also provided are methods of preparing such lithium batteries.

Abstract: The invention provides a method of manufacturing a power storage device which enables facilitation of manufacturing of the power storage device while a plurality of terminal portions are prevented from overlapping one another when viewed from a stacking direction. The method of manufacturing the power storage device including a plurality of electrode elements stacked with electrolyte layers interposed between them, the method includes a first step of forming the electrode element which has a generally rotationally symmetric outer shape when viewed from a stacking direction and includes a terminal portion protruding in an outward direction of the power storage device in an area of the outer shape, and a second step of stacking the plurality of electrode elements formed in the first step with the electrolyte layers interposed between them at varying angles in a stacking plane such that the terminal portions do not overlap one another when viewed from the stacking direction.

Abstract: A secondary battery includes: a jelly roll that includes a positive and a negative electrode wound via a separator; a case; a lid; and electrically conductive input/output members, wherein: the electrically conductive input/output members include, at least; a positive and a negative electrode current collector plate with one end thereof connected to the positive and the negative electrode respectively; a positive and a negative electrode external conductive member with one end thereof connected to another end of the positive and the negative electrode current collector plate respectively and another end thereof extending to an outer side of the lid; the one end of the positive and the negative electrode external conductive member are respectively swage-fused to the other end of the positive and the negative electrode current collector plate; and an oxide layer is formed at a surface of each swage-fused area.

Abstract: Provided is a method of manufacturing a lithium ion capacitor. The method includes the steps of: contacting a lithium supplying source to an anode directly; pre-doping lithium ions into the anode by immerging the anode and the lithium supplying source into a doping electrolyte solution; forming an electrode cell by sequentially stacking the lithium ions on the pre-doped anode and a cathode with placing a separator therebetween; cleaning the doping electrolyte solution absorbed to terminals of the electrode cell; fusing the terminals; and sealing the electrode cell with exposing the fused terminal.