748results about "Large-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.

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.

The system for deicing black ice includes a plurality of laser scanners that are arranged at intervals along a road, each laser scanner including a light source unit, a non-contact temperature sensor, and a control unit that controls an operation of radiating the laser to the area in charge, a weather sensor that measures a temperature and humidity, and an integrated controller that communicates with the plurality of laser scanners. The integrated controller determines whether the laser is radiated to the road surface based on at least one of the measured temperature and humidity, and when the laser radiation is determined, generates a control signal to activate at least one laser scanner, and the control unit determines a heating area, and generates a pulse signal to turn on / off a light source unit so that the laser is radiated in accordance with a shape and range of the heating area.

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.

Embodiments of this application provide a cell, a battery, and an electric device. The cell includes a can and an electrode assembly. The can includes a first wall portion, where N vent mechanisms are arranged along a first direction on the first wall portion. The electrode assembly is accommodated in the can. The electrode assembly includes a body portion and a tab. The body portion includes a plurality of sub-regions. Along the first direction, the tab is arranged at at least one end of the body portion. The plurality of sub-regions are consecutively arranged. A length of the body portion is L, and a length of the sub-region is L1, L=L1×N, L≥400 mm, and N≥2. A projection of each vent mechanism along a thickness direction of the first wall portion is correspondingly located in one of the sub-regions. Each vent mechanism can discharge a discharge medium generated by thermal runaway in a corresponding sub-region, and the discharge medium generated by thermal runaway in each sub-region can be quickly discharged through a corresponding vent mechanism, which can effectively improve timeliness of venting of a cell, thereby improving reliability of the cell.

Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

A testing apparatus and method for testing a battery, a device, and a medium are disclosed. The testing apparatus includes a first ray source, a first detector, a second ray source, a second detector, a bearing platform, and a testing unit. The bearing platform is configured to place a battery to be tested, and the bearing platform is movable. A movement trajectory of the bearing platform passes between the first ray source and the first detector, and the movement trajectory of the bearing platform passes between the second ray source and the second detector. The testing unit is respectively connected to the first detector and the second detector. The testing unit is configured to perform defect testing on the battery to be tested based on a ray received by the first detector and a ray received by the second detector.

This application discloses an adhesive and its manufacturing method, a separator, an electrode plate, an electrode assembly, a battery cell, a battery, and a power consumption device, and relates to the field of battery technology. The adhesive includes a polyacrylate copolymer and a lithium-containing compound. The adhesive includes a polyacrylate copolymer and a lithium-containing compound, which allows the polymer to have very good swelling resistance, and exhibits good adhesion, improves ionic conductivity, and contributes to controlling the molecular weight and glass transition temperature of the polymer, thereby improving the adhesive performance. The adhesive further includes a lithium-containing compound, which allows the adhesive to have two functions of adhesive and lithium supplement at the same time, and eliminates the need to install an independent metallic lithium layer or lithium supplement layer in the lithium ion battery, and can improve the dynamic performance of the lithium ion battery, reduce the electrochemical impedance, and improve the cycle performance and power supply performance of the lithium ion battery.

The invention relates to a battery and a battery manufacturing method. A battery includes a battery case in which an electrode stack is accommodated, and in which a rectangular opening is formed by a pair of short-side wall portions and a pair of long-side wall portions of the battery case, and at a corner portion of the opening, an electrode stack is accommodated in the battery case. At least one of the short side wall portion or the long side wall portion is bent to form a protruding portion protruding toward an outer side of the battery case.

The invention relates to a battery and an energy storage device. The battery comprises at least two frames which are sequentially stacked and connected along a first direction; the two end plates are connected to the two opposite sides of the at least two frames in the first direction respectively, and a closed space is defined by the two end plates and all the frames; the at least two polar plates and the at least one partition plate are located in the closed space and alternately stacked in the first direction, and the at least two polar plates are fixed to the at least two frames in a one-to-one correspondence mode; the first elastic piece and the second elastic piece are configured to be elastically deformable in the first direction; wherein at least one frame is in elastic sealing connection with the adjacent frame and / or the adjacent end plate through a first elastic piece, and each end plate is in elastic connection with the adjacent polar plate through a second elastic piece. The problems that the internal resistance of the battery is rapidly increased and the battery capacity and the large-current discharge capacity are reduced due to the falling of the positive electrode active layer can be avoided.

A battery module according to an embodiment of the present disclosure includes a first cell stack and a second cell stack including one or more battery cells, a mono frame receiving the first cell stack and the second cell stack. a spring located between the first cell stack and the second cell stack, a first plate located between the first cell stack and the spring, and a second plate located between the second cell stack and the spring, and the compression direction of the spring is parallel to the stack direction of the one or more battery cells.

Disclosed is a bipolar electrode including a current collector including a polymer film and conductive layer added to at least a part of each of an outer surface and an inner surface of the polymer film, a positive electrode formed on a first surface of the current collector, and a negative electrode formed on a second surface of the current collector, wherein the current collector including the polymer film is thermally fused so as to be sealed, whereby migration of an electrolyte between unit electrodes is prevented.

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.

A stack including a plurality of sheet materials that are stacked is provided. In the above-described stack, each of a plurality of sheet materials has a support layer including thermoplastic resin material, and a first metal layer and a second metal layer formed on both faces of the support layer. In a part of the plurality of sheet materials, a plurality of first metal layers and a plurality of second metal layers included in the plurality of sheet materials are integrated and each of the plurality of first metal layers and the plurality of second metal layers includes a concave and convex region where each metal layer has a bellows-like shape or a wrinkled shape.

The invention discloses a battery monomer and a preparation method thereof, a diaphragm, a battery device and a power utilization device, the battery monomer comprises a shell and a battery cell assembly and an electrolyte arranged in the shell, the battery cell assembly is located in the electrolyte, the battery cell assembly comprises a positive pole piece, a negative pole piece and the diaphragm, and the diaphragm is located between the positive pole piece and the negative pole piece; the diaphragm comprises a base membrane and a first coating arranged on at least one side of the base membrane, the first coating comprises a polymer material, and the melting point or glass transition temperature of the polymer material is 90-140 DEG C; the polymer material has a volume median particle size of 10 nm to 10 [mu] m. Through the arrangement, the thermal stability of the battery is improved, and the safety of the battery is improved.

This invention relates to an electrode assembly with a coated portion for short-circuit prevention, and more specifically, to an electrode assembly characterized by comprising: a positive electrode sheet, wherein a positive electrode connector protrudes from an outer end, and the lower portion of the current collector and the positive electrode connector is coated with a positive electrode mixture layer comprising a positive electrode active material; a negative electrode sheet, wherein a negative electrode connector protrudes from an outer end, and the lower portion of the current collector and the negative electrode connector is coated with a negative electrode mixture layer comprising a negative electrode active material; and a separator disposed between the positive electrode sheet and the negative electrode sheet, wherein a shoulder is formed on the negative electrode sheet, the shoulder extends a predetermined length in the horizontal direction and is coated with a negative electrode active material, and the shoulder is surrounded by the coated portion.

The apparatus for forming a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices, of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20), a series of anode elements (21) and a series of cathode elements (22), applied alternately on said separator element (20). The apparatus comprises feed means (10) for advancing said flexible strip (2) along a feed direction (A) on a feed plane and folding means (3) suitable to be operated in a suitable step relationship to perform a series of folds orthogonal to the feed direction on said flexible strip (2) and to deposit the flexible strip (2) thus folded on a stacking plane (4). The apparatus comprises rotatable means (5) capable of being driven in continuous rotation and having distributed peripherally a plurality of devices (55, 56) for collecting and transferring said anode and cathode elements (21, 22) on the flexible strip (2) in the folding step onto the stacking plane (4).

Provided in the present application are a battery, a battery module and an electrical device. The battery comprises a battery cell and a battery case, wherein the battery cell is located in an accommodating cavity of the battery case and comprises first side surfaces and second side surfaces which are connected to each other, the area of the first side surface being greater than that of the second side surface; the battery case comprises a top cover, a side housing and two first side plates; the top cover is welded to the battery cell; the side housing is welded to the top cover, the side housing comprises a bottom plate and two second side plates, the bottom plate and the top cover are spaced apart in the direction of height of the battery, the two second side plates are spaced apart from each other in the direction of length of the battery, each second side plate has one end connected to the bottom plate and the other end connected to the top cover and is opposite one of the second side surfaces, and the bottom plate, one of the second side plates, the top cover and the other second side plate are sequentially connected to form a main case; and the two first side plates are spaced apart from each other in the direction of width of the battery, the two first side plates respectively abut against the opposite first side surfaces, at least one of the first side plates is welded to the main case, and a weld seam of the first side plate welded to the main case is an annular weld seam.

The present disclosure relates to battery plates which are useful in optimizing the power and energy density of a batter assembly by having discrete active materials. The present disclosure relates to a battery plate having: a) a substrate having a first surface opposing a second surface; b) one or more active materials disposed on the first surface, second surface, or both the first surface and the second surface of the substrate; and wherein the one or more active materials include two or more discrete active material regions.

The present invention relates to an apparatus for manufacturing an electrode assembly, the apparatus including a fixing part configured to grip and fix a stack in which one or more first electrodes, one or more separators, and one or more second electrodes are stacked, and a press part configured to heat and press the fixing part, in which the fixing part includes two or more portions having different properties.

According to an embodiments of the present disclosure, provided is a bipolar unit cell comprising: a laminate which includes a positive electrode current collector, a positive electrode material layer formed on one surface of the positive electrode current collector, a negative electrode current collector, a negative electrode material layer formed on one surface of the negative electrode current collector, and a separator, and in which the positive electrode material layer and the negative electrode material layer are stacked so as to face each other while interposing a separator between them, and a sealing portion that is attached form the other surface of the positive current collector to the other surface of the negative current collector to integrally form the laminate and seal the inside, wherein a conductive layer is formed on the outside of at least one of the positive electrode current collector and the negative electrode current collector, and a bipolar battery having a structure in which two or more of the bipolar unit cells are stacked.

A static battery with a non-conductive elastomeric or thermoplastic housing. The battery-housing is adapted to receive at least one anode assembly, at least one cathode assembly, and at least one bipolar electrode assembly. At least the bipolar electrode assembly is formed from a conductive plastic resin that is formed as a CPE sheet. A carbon material is affixed to the CPE sheet to form the bipolar electrode. The at least one cathode assembly, the at least one anode assembly and the at least one bipolar electrode assembly are received into the battery box such that a liquid and / or gas seal is formed between electrode assemblies. The battery housing has slots into which the electrode assemblies are received. When the electrode assemblies are received into the housing, cells are formed by the cooperation of the electrode assemblies and the battery housing. The cells are then filled with electrolyte such as zinc bromide and a lid is placed on the battery- box. Once sealed the battery box is a liquid tight container for the battery.

An inspection device comprises a layer conveyor which has a pickup and a drive in order to pick up a respective individual anode or cathode layer from a transfer location and bring it to a delivery location. A stacking table picks up the anode or cathode layer from the pickup at the delivery location to form a layer stack. The layer conveyor delivers an anode or cathode layer from its pickup to the stacking table at the delivery location. An image sensor is directed towards an area encompassing an upper edge of the layer stack located on the stacking table, which comprises a connection tab of the anode or cathode layer located at the top of the layer stack and performs an image feed before or after the anode or cathode layer is deposited on the stacking table.

To provide a method of manufacturing a battery, and a battery, enabling an electrode body to be impregnated with an electrolyte by a simple method.SOLUTION: A method of manufacturing a battery 10 includes: a first step of arranging an electrode body 30 in the internal space of outer casing bodies 20A and 20B; a second step of supplying an electrolyte to the internal space of the outer casing bodies 20A and 20B in which the electrode body 30 is arranged; and a third step of compressing a portion corresponding to the circumference of the electrode body 30 of the outer casing bodies 20A and 20B to which the electrolyte has been supplied. The inner volume of the internal space of the outer casing bodies 20A and 20B is larger than the volume of the electrode body 30.SELECTED DRAWING: Figure 2

A device for producing an electrode stack containing flat electrode elements includes a stacking wheel, which is mounted to rotate about a stacking wheel axis and has a plurality of stacking wheel fingers, which define respective intermediate spaces for receiving the electrode elements, and a wiper unit, which is designed to remove the electrode elements one after the other from the respective intermediate spaces through interaction with a rotational movement of the stacking wheel about the stacking wheel axis. The device furthermore includes a receiving unit for successively receiving the electrode elements removed from the intermediate spaces. The receiving unit has a base structure, on which the electrode elements received in the receiving unit can be stacked, and a delimiting element, which forms an end stop for the electrode elements received in the receiving unit and which is arranged statically in relation to the stacking wheel axis.

The present invention relates to an electrode assembly set including a connecting part that electrically connects a plurality of electrode assemblies inside a pouch to each other, and is movable according to a change in volume of each of the electrode assemblies to be capable of being prevented from being damaged. The electrode assembly set according to an embodiment of the present invention may include a plurality of electrode assemblies which include a plurality of negative electrodes, positive electrode, and separators, and a connecting part which electrically connects the electrode assemblies to each other, wherein the connecting part includes a plurality of folding parts, each of which has a portion folded at a predetermined angle, and the predetermined angle is changed so as to allow the electrode assembly to move.

A laminate having a plurality of sheet materials stacked is provided. In the laminate, each of the plurality of sheet materials has a support layer including a thermoplastic resin material, and a first metal layer and a second metal layer formed on both surfaces of the support layer. In a part of the plurality of sheet materials, a plurality of the first metal layers and a plurality of the second metal layers included in the plurality of sheet materials are integrated, and each of the plurality of the first metal layers and the plurality of the second metal layers includes a concave-convex region in which each metal layer has a corrugated shape or a shape in which wrinkles are gathered.

The invention provides an all-solid-state battery stack with high voltage. The all-solid-state battery stack of the disclosure has a plurality of monopolar battery units stacked together via insulator layers. The monopolar battery unit also has a first current collector layer, a first active material layer, a solid electrolyte layer, a second active material layer, a second current collector layer, a second active material layer, a solid electrolyte layer, a first active material layer and a first current collector layer, stacked in that order. The plurality of monopolar battery units are connected together in series.

A secondary battery (100A, 100B, 100C) includes an electrode assembly (10), where a thickness direction of the electrode assembly (10) is a first direction (Z), a length direction of the electrode assembly (10) is a second direction (Y), and a width direction of the electrode assembly (10) is a third direction (X). The electrode assembly (10) includes a plurality of electrode plates (20) and a plurality of separators (30). The plurality of electrode plates (20) are stacked along the first direction (Z). The plurality of electrode plates (20) include two outermost electrode plates (20A) located on two sides along the first direction (Z), sub-outermost electrode plates (20B) adjacent to the outermost electrode plates (20A), and an intermediate electrode plate (20C) located between the two sub-outermost electrode plates (20B). The plurality of separators (30) include two first separators (30A) located on two sides along the first direction (Z) and a second separator (30B) located between the two first separators (30A), where the first separator (30A) is located between the outermost electrode plate (20A) and the sub-outermost electrode plate (20B). Along the second direction (Y), a dimension of at least one of the first separators (30A) is greater than a dimension of the second separator (30B); and / or along the third direction (X), a dimension of at least one of the first separators (30A) is greater than a dimension of the second separator (30B).

A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly, the case having a bottom surface and long and short sidewalls that extend upwardly from the bottom surface; a cap plate coupled to an upper portion of the case and sealing the case; and an insulation member attached to an outer surface of the case. The insulation member includes a first layer in contact with the outer surface of the case and made of a heat-resistant material, a third layer exposed to the outside and made of a stretchable material, and a second layer between the first and third layers and made of an insulating material.