843results about "Small-sized flat cells/batteries" patented technology

The present invention discloses a stack cell. The stack cell of the present invention includes an electrode stack; at least one fixing tape wrapped around the electrode stack to secure the electrode stack; and a step-leveling tape attached to the edge of the upper surface of the electrode stack to eliminate the step between the fixing tape and the upper surface of the electrode stack.

A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.

The invention relates to a method of coupling a battery cell to a battery cell monitoring and control circuit, the method comprising the steps of: providing a battery cell (10) comprising a multilayer structure comprising two electrode layers (11, 12) separated by a separator layer (17) and two electrically conductive outer faces (13, 14) extending parallel to the layers of the multilayer structure; providing a microcircuit (MC) comprising two connection pads (21, 22) respectively formed on opposite faces or on the same face of the microcircuit, the microcircuit being inserted into a volume defined by two planes respectively comprising an electrically conductive outer face of the battery cell; an electrically conductive connection (25, 26) is formed between each connection pad of the microcircuit and a respective electrically conductive face of the battery cell.

Disclosed is a wearable device. The wearable device includes a substrate layer. The substrate layer is configured to support a battery array comprising a plurality of battery cells, wherein least a first battery cell is electrically coupled to a second battery cell using a conductive interconnect. The wearable device also includes an interface layer coupled to the substrate layer. The interface layer is electrically coupled the battery array via a translayer interconnect. The interface configured to adhere the substrate to a body and to provide electrical stimulation to the body.

A battery manufacturing apparatus includes a negative electrode notching device configured to assign a first electrode ID to individual notched electrodes; a first cutting device for separating individual negative electrodes assigned the first electrode ID; a positive electrode notching device configured to assign a second electrode ID to individual notched electrodes; a second cutting device for separating individual positive electrodes assigned the second electrode ID; a stacking device configured to stack the individual positive electrodes and the individual negative electrodes with a separator therebetween; and a roll map creating device.

The present application discloses a battery cell, a secondary battery, and an electric device. The battery cell comprises a plurality of electrode sheets; each electrode sheet comprises a current collector and active substance coatings; the electrode sheet has a first region covered with the active substance coatings and a second region not covered with the active substance coatings; the first region is provided with a clearance notch; the second region forms a tab of the battery cell; among the plurality of stacked electrode sheets, for two adjacent electrode sheets, the first region of one electrode sheet is provided with a clearance notch so as to expose the second region of the other electrode sheet; the width of the electrode sheet is W mm, the area of the clearance notch is S1 mm2, the area of the second region is S2 mm2, and the thickness of the battery cell is H; when H is greater than 7 mm, S1+S2＜A*W is satisfied, and A is 3.6 mm; or, when H is less than or equal to 7 mm, S1+S2＜B*W is satisfied, and B is 1.6 mm. By means of such design, when a bare battery cell is formed by stacking, the tabs are accommodated in the main body region of the bare battery cell, and there is no need to perform multi-tab transfer welding, thereby improving space utilization; moreover, by setting the maximum value of S1+S2, it is ensured that the overall energy density of the battery cell is increased.

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

This application relates to batteries with an asymmetric design. At least some batteries described herein include two sections having different shapes and / or sizes, thus having different volumes. Having a battery formed with a relatively larger sections allows for several advantages. For example, the larger section can accommodate bending of a tab used to connect several electrodes together. Additionally, with the larger section providing space for the bent tab, the electrodes can be extended in, for example, the relatively smaller section. As a result, the battery can provide additional energy storage.

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

The present invention provides an electrode assembly including: a stack 100 formed by aligning and alternately stacking a plurality of electrodes 110 and a plurality of separators 120 in a first direction, and a wrapping film 200 surrounding and fused to the stack 100 to fix the plurality of electrodes 110 and the plurality of separators 120. Electrode tabs 112 of the plurality of electrodes 110 are disposed at one side or the other side of the stack 100 in a second direction intersecting with the first direction. The wrapping film 200 surrounds one side and the other side of the stack 100 in the first direction; and one side and the other side of the stack 100 in a third direction intersecting the first direction and the second direction, and is fused to at least the one side or the other side of the stack 100 in the first direction. Thus, deformation and damage of the separator 120, disruption of the alignment of the stack 100, and short circuit resulting therefrom may be prevented.

A battery and an electronic device are disclosed. The battery includes: a first bare cell portion and a second bare cell portion. The first bare cell portion has a first surface and a side surface connected to the first surface, the first surface is configured to face towards a same direction as that of an opening of a battery compartment of an electronic device when the battery is installed in the battery compartment, and the side face is configured to face towards an inner side surface of the battery compartment of the electronic device when the battery is installed in the battery compartment. The second bare cell portion is located on a side that the first surface faces, and an orthographic projection of the second bare cell portion on the first surface overlaps the first surface.

The present invention provides a method for deactivating a pair of outermost negative electrodes disposed at the uppermost end and the lowermost end of an electrode assembly including a plurality of positive electrodes, a plurality of negative electrodes, and a plurality of separators, respectively, the method for deactivating the outermost layer negative electrode includes: a deactivating step of forming a deactivating region having a predetermined width (w) along an edge of one side of the outermost layer negative electrode; the width (w) is determined on the basis of the horizontal length of the outermost negative electrode, the vertical length of the outermost negative electrode, and the number of individual cells in the electrode assembly consisting of the separator, the negative electrode, the separator, and the positive electrode, whereby a clear guidance can be provided for the deactivation operation of the outermost negative electrode of the electrode assembly.

Discussed is a lamination apparatus for a secondary battery. The lamination apparatus for the secondary battery includes: an electrode transfer part configured to transfer at least one or more electrodes; a separator transfer part configured to transfer at least one or more separators; a combination part configured to combine and transfer the electrodes and the separators that are to be alternately disposed; and a position correction part configured to correct a position of an uppermost electrode disposed at an uppermost side among combined electrodes and the separators to align the position of the electrode with a set position of the separator among the combined electrodes and separators.

A cell stack assembly, including: a plurality of stacked battery cells, each including an electrode assembly; a laminate exterior packaging that covers the electrode assembly and encloses the electrode assembly internally; and a fixing tape, including at least one of an inner fixing tape wound in a peripheral direction onto an outer peripheral face of the electrode assembly at an inner side of the laminate exterior packaging, or an outer fixing tape wound in a peripheral direction onto an outer peripheral face of the laminate exterior packaging, wherein: taking a direction in which the plurality of battery cells are stacked as a stacking direction, the fixing tape is wound such that winding positions of the fixing tape do not overlap in the stacking direction for at least one adjacent pair of the battery cells.

The present invention relates to a method for manufacturing a secondary battery. The method for manufacturing the secondary battery comprises: an electrode preparation step of preparing electrodes, each of which is provided with a coating portion coated with an electrode active material and a non-coating portion that is not coated with the electrode active material; an electrode assembly manufacturing step of alternately stacking the electrodes and separators to manufacture an electrode assembly, wherein the electrodes are stacked so that the non-coating portions overlap each other; a non-coating portion bonding step of bonding the non-coating portions to each other; a display part formation step of forming a display part for setting a cutting point on a surface of the bonded non-coating portion of each of the electrodes; and an electrode tab manufacturing step of cutting the bonded non-coating portion adjacent to the display part to manufacture an electrode tab.

An electrode assembly according to an embodiment of the present invention may be provided by alternately stacking elenglisctrodes and separators in a predetermined stacking direction, wherein, when an electrode, which is disposed at the outermost side, of the electrodes is defined as the outermost electrode, and a separator, which is disposed at the outermost side, of the separators is defined as the outermost separator, a distal end portion of the outermost separator may be provided to press a distal end portion of the outermost electrode inward in the stacking direction.

The present disclosure relates to a battery pack manufacturing device and a method of manufacturing a battery pack, and a technical object to be achieved is to provide a battery pack manufacturing device which includes a core molding jig having a plurality of molding parts on which a core pack is seated to minimize a melting cycle, thereby increasing productivity and reducing a mold cost by standardizing the core molding jig, and a method of manufacturing a battery pack. To this end, a battery pack manufacturing device includes a core molding jig including a molding part on which a core pack of which a bare cell and a protection circuit part are coupled is seated, a mold part which fixes the core molding jig, and an injection part which is provided at the mold part and performs a hot-melting process on the molding part to form a resin molding portion on the core pack, wherein the molding part is formed as a plurality of molding parts so that a plurality of core packs are seated on the plurality of molding parts.

To provide a rechargeable battery suitable for personal digital assistants or wearable devices. , novel electronic devices having various external shapes, and secondary shapes suitable for those shapes We provide batteries. [Solution] The film has recesses or protrusions that relieve the stress generated when an external force is applied. The secondary battery is sealed using a film. The film is press-formed, for example, E The embossing process creates a pattern composed of recessed or raised areas.

An electrode assembly, in which positive electrodes, separators, and negative electrodes are repeatedly stacked, and a positive electrode tab, through which the positive electrodes are connected to each other, and a negative electrode tab, through which the negative electrodes are connected to each other, are provided, according to the present invention comprises: a heat transfer layer made of a material having thermal conductivity greater than that of the separator and stacked between the positive electrode and the separator or between the negative electrode and the separator to disperse heat generated at a relatively high temperature point to a relatively low temperature point. According to the present invention, the heat generated at the relatively high temperature point may be dispersed to the relatively low temperature point to reduce the temperature deviation within the electrode assembly.

Disclosed is a stack cell. The stack cell of the present invention comprises: an electrode stack; at least one fixing tape that wraps around the circumference of the electrode stack and fixes the electrode stack; and a step-removing tape that is attached to each of the edge portions of the upper surface of the electrode stack so as to remove a step portion between the fixing tape and the upper surface of the electrode stack.

According to the method of the application: manufacturing a stack (I) comprising, in plan view, x rows and y columns so as to form (x*y) cells, this stack being formed by a succession of alternating layers (SA, SC) respectively of anode layers (SA) and cathode layers (SC), each layer (SA, SC) comprising a plurality of respective anode primary blanks (111') and cathode primary blanks (141'), a plurality of respective anode secondary blanks (112') and cathode secondary blanks (142'), these blanks forming primary and secondary bodies of the cells and so-called "empty" zones (80", 70") between these primary and secondary bodies; in plan view, making a pair of main cuts (DYn, DY'n) between two adjacent empty zones (80", 70") so as to expose an anode connection zone (1002) and a cathode connection zone (1006) of each cell and to separate a given cell formed by a given row from at least one other adjacent cell formed by at least one adjacent row.

The present invention relates to an electrode manufacturing device and an electrode assembly manufacturing device including the electrode manufacturing device, the electrode manufacturing device including: a first electrode conveying unit, which is configured to convey a first electrode with an electrode coating formed on one surface or two opposite surfaces; a first cutter, which is configured to cut the first electrode conveyed by the first electrode conveying unit to form a first unit electrode; a first diaphragm conveying unit arranged on one side of the first electrode conveying unit, the first diaphragm conveying unit being configured to convey the first diaphragm; a first sensor unit, which is configured to sense the position of the first unit electrode; and a first alignment unit, which is configured to adjust the conveying speed of the outer periphery of the first unit electrode parallel to its conveying direction so as to adjust the interval between the first unit electrodes placed on one surface of the first diaphragm, wherein before the process of stacking and laminating electrodes with different polarities, it is determined whether the positive electrode and the negative electrode are aligned with each other, and then the positive electrode and the negative electrode are stacked, thereby preventing defective electrodes from being generated due to misalignment between the positive electrode and the negative electrode.

Example embodiments relate to multiple battery configurations for space utilization. One embodiment includes a device. The device includes a primary battery. The device also includes an auxiliary battery configured to supply auxiliary electrical power. A first surface of the auxiliary battery is positioned along a first surface of the primary battery. The auxiliary battery is a thin-film battery. The first surface of the auxiliary battery has a smaller area than the first surface of the primary battery.

A thin-film battery (100) with several electrochemical cells (10) is provided. The electrochemical cells (10) are mounted on a carrier film (50) as a common substrate. The electrochemical cells (10) are stacked on top of each other. Each electrochemical cell (10) is separated from an adjacent electrochemical cell by a fold edge (11) in the carrier film. The electrochemical cells (10) are electrically connected to each other by at least one conductive layer (12; 51) of the carrier film. The thin-film battery is further characterized by the fact that the carrier film has weakening lines (510) in the region of the fold edges (11).

The present invention provides an inspection device for a thin-film battery that can detect defective sealing portions of a heat-sealed portion. According to the present invention, there can be provided an inspection device (200) for a thin-film battery (100) including an electrode body and a film outer package body that houses the electrode body therein and has a heat-sealed portion at a peripheral edge. The inspection device (200) includes: a temperature measurement device (210) that measures the temperature distribution of the heat-sealed portion; and a first determination unit (241) that controls the temperature measurement device within a predetermined time after the heat-sealed portion is formed in the film outer package body, and determines the presence or absence of a defective sealing portion based on the measured temperature distribution.

According to embodiments of the present disclosure, there is provided an electrode assembly for secondary battery comprising: a stacked body that includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, with the separator being located at the outermost surface on both sides; and at least two pairs of fixing members attached in the stacking direction for fixing between the separators located at the outermost surface on both sides of the stacked body, wherein the separator includes at least one pair of notch grooves, and wherein the pair of notch grooves are formed one by one on one surface perpendicular to a protruding direction of an electrode tab and the other surface located in a diagonal direction thereof.

To provide a battery that can be safely deformed, provide a battery that can be bent and has a large thickness, and provide a battery with an increased capacity.SOLUTION: A wavy film that is periodically continuous in one direction is used for the exterior body of a battery. A space is provided inside the exterior body between the unfixed end of an electrode stack and the inner wall of the exterior body. Furthermore, the waves of a pair of parts of the exterior body that sandwich the electrode stack are formed to be out of phase. In particular, the waves are formed to be out of phase by 180 degrees such that the ridge lines overlap and the valley lines overlap.SELECTED DRAWING: Figure 1

To provide a battery pack, relatively simple production of which is enabled and a relatively simple structural design of which is allowed.SOLUTION: There is provided a battery pack 1 for supplying an electrically driven treatment apparatus with electric driving power. The battery pack 1 comprises a stack housing 10 and a plurality of pouch cells. The stack housing 10 has a common housing opening 10O defined by a housing edge 10R and the pouch cells have cell tabs 22. The pouch cells are configured and disposed in a stack state within the stack housing 10 such that the cell tabs 22 at least with tab parts 22T on the common housing opening 10O project beyond at least one edge portion 10RA of the housing edge 10R. The tab parts 22T are directly electrically connected to each other by welded connections 22S.SELECTED DRAWING: Figure 7

The invention relates to an electrode assembly and a secondary battery. Embodiments of a secondary battery having an electrode assembly are provided. The secondary battery may include an electrode assembly having a stacked series of layers with an offset between an electrode layer and a counter electrode layer in a unit element member of the stacked series. A primary restraint system may be provided for the group of restraints, the primary restraint system having first and second primary growth restraints separated from each other in a longitudinal direction and connected by at least one primary connecting member, and the secondary restraint system includes first and second secondary growth restraints separated in a second direction and connected by members of the stacked series of layers. The primary restraint system may at least partially limit growth of the electrode assembly in a longitudinal direction, and the secondary restraint system may at least partially limit growth in a second direction orthogonal to the longitudinal direction.

A battery includes an electrode assembly, a housing accommodating the electrode assembly, and a first layer including an insulating material. The electrode assembly includes a first electrode sheet and a second electrode sheet that are stacked and adjacently disposed along a fourth direction. The first electrode sheet includes a first edge extending along a first direction, a second edge extending along a second direction perpendicular to the first direction, and a third edge extending along a third direction intersecting both the first direction and the second direction, the third edge including a first end connected to the first edge and a second end connected to the second edge. The first layer is adhered to the first electrode sheet and includes a first border extending along the first direction and a second border extending along the second direction and connected to the first border.