62results about "Accumulators with bipolar electrodes" patented technology

The present invention discloses a front-terminal vertical wide-tab direct-connected bipolar lead-acid battery and an assembly method thereof. Specifically, a new battery structure is proposed, in which the busbars between the single compartments in a conventional battery are removed, and the connection between the single compartments is replaced by a bipolar plate connection method. The plates and separators are stacked horizontally into a battery slot layer by layer in a specific arrangement order, the tabs are widened, and a row of holes are punched in the middle of the tabs of the bipolar plates. After the lamination is completed, metal rods are inserted into the holes to connect the pole groups and tabs in parallel, the pole groups are locked with a pressing plate, and each monomer is sealed by glue injection. The two halves are then bonded into a whole by glue sealing or heat sealing, and the battery is turned into an upright state. The busbars at the turning points are welded, the terminals are welded, and the side covers are sealed to complete the battery assembly. This structure can greatly improve the high-current and high-rate discharge performance of the battery, and effectively solve the high-rate discharge and assembly problems of lead-acid batteries, providing key support for technological innovation, performance breakthroughs and market expansion of lead-acid batteries.

The invention discloses a front terminal vertical wide tab direct-connection bipolar lead-acid battery and an assembly method thereof, and particularly provides a novel battery structure, a busbar between single partitions in a conventional battery is removed, and the connection between the single partitions is replaced by a bipolar pole plate connection mode; the polar plates and the partition plates are horizontally stacked into a battery jar layer by layer according to a specific arrangement sequence, tabs are widened, a row of holes are punched in the middles of the tabs of the bipolar polar plates, metal rods are inserted into the holes to enable the tabs of a polar group to be connected in parallel after lamination is completed, the polar group is locked by a pressing plate, and each monomer is sealed through glue injection. Then the two half parts are bonded into a whole through glue sealing or heat sealing, the battery is turned to be in a vertical state, then a busbar at the turning position is welded, a terminal is welded, a side cover is sealed, and battery assembling is completed; according to the structure, the large-current high-rate discharge performance of the battery can be greatly improved, the problems of high-rate discharge and assembly of the lead-acid battery are effectively solved, and a key support is provided for technical innovation, performance spanning and market expansion of the lead-acid battery.

The occurrence of a short circuit inside a cell member is prevented and the takt time is shortened by forming a through hole to prevent an influence on components, such as deformation of a separator, inside a space housing the cell member caused by an injected electrolyte solution, while also considering case of the injection. A battery includes a plurality of cell members stacked with spacing. Each of the cell members includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery includes a space forming member including a substrate and a frame, a plurality of through holes open inside a space housing the cell member, and a lid covering a portion of the frame, the portion surrounding one side face of the cell member. The lid has a communication hole communicating with the plurality of through holes.

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.

Lead-acid batteries or cells, electrodes and bipolar plates for the same, and methods of manufacturing the same are provided. The lead-acid batteries comprise a positive and / or negative electrode having a specific pore size diameter distribution. The pore size diameter distribution may comprise: a ratio of a volume of pores having a pore size diameter greater than 20 μm to a total pore volume of at least 15%; or a volume of pores having a pore size diameter greater than 20 µm of at least 0.020 ml / g.

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.

A Lead-Acid Battery Management System (BMS) and a method for operating a BMS for a battery system comprising a plurality of groups of at least one lead acid battery, the battery management system comprising: at least one control device configured to electrically integrate and segregate each of the batteries from the string, and a controller configured to control the control device to independently control the charging and discharging of each of the batteries. In some cases the controller is configured to determine an input power available to charge the battery system, determine, based on the determined input power, that at least one of the groups of batteries can charge above a charging threshold; and selectively charge at least one of the groups of at least one battery. In some cases the BMS is configured overcharge the batteries independently. In some cases the BMS is configured to modify the discharging of the at least one battery based in a determined charge characteristic.

The present application discloses a separator for an electrochemical device, an electrochemical device and an electrical device. The separator includes a sealing layer, the sealing layer includes a middle part, an edge part surrounding and connected to the periphery of the middle part, the middle part is accommodated in the internal space of the outer package of the electrochemical device, and the edge part is used for sealing connection with the outer package. The present application connects the sealing layer of the separator to the outer package of the electrochemical device, thereby improving the stability of the sealing connection between the separator and the outer package of the electrochemical device, thereby effectively improving the service life of the electrochemical device. In addition, the thickness of the prepared separator can be effectively reduced, and the energy density of the electrochemical device can be improved.

The invention relates to the technical field of energy storage batteries, in particular to an internal structure of an energy storage battery. The double-negative electrode structure comprises two negative electrode plates, two insulating diaphragms and a positive electrode plate; the double-positive-electrode structure comprises two positive electrode plates, two insulating diaphragms and a negative electrode plate. Compared with the prior art, the energy storage battery has the advantages that the energy density of the energy storage battery is effectively improved in a manner that one positive electrode plate is used for clamping two negative electrode plates, and one negative electrode plate is used for clamping two positive electrode plates, so that the energy storage battery can contain more electrons compared with a traditional energy storage battery.

Provided is a bipolar storage battery in which, even when growth occurs in a positive electrode due to corrosion caused by sulfuric acid contained in an electrolytic solution, the electrolytic solution is hard to penetrate into an interface between the positive electrode and an adhesive and battery performance is hard to decrease. The bipolar storage battery is a bipolar storage battery (1) including a bipolar electrode (130) including a positive electrode (120), a negative electrode (110), and a bipolar plate (111) in which the positive electrode (120) is provided on one surface and the negative electrode (110) is provided on the other surface, and the bipolar electrode (130) includes a covering member (150) configured to cover a peripheral part (120a) of an opposite surface of the positive electrode (120) in close contact with the peripheral part (120a), the opposite surface being opposite to a surface, of the positive electrode (120a), bonded to the bipolar plate (111).

Described is a bipolar storage battery with sufficient stiffness to withstand a force of expansion of cells due to gas generated by corrosion or a force of an impact from the outside, while ensuring air tightness inside the cells and mechanical strength. The battery includes a plurality of cell members stacked with spacing, each including a positive electrode, a negative electrode, and a separator interposed therebetween. The battery includes a space forming member forming a plurality of spaces individually housing the cell members and including a substrate and a frame. The battery includes an outer reinforcing wall facing an outer wall face of the frame and extending from the substrate in a stacking direction of the cell members and the space forming member. An outer hollow space is formed between the outer reinforcing wall and the outer wall face.

To provide a bipolar lead-acid battery with increased energy density. [Solution] A bipolar lead-acid battery includes a stack of at least two cells arranged in electrical series with the positive face of each cell contacting the negative face of an adjacent cell, each of the cells comprising: a negative electrode including a negative electrode plate and a negative electrode active material; a positive electrode 14 including a positive electrode plate 22 and a positive electrode active material 24, the positive electrode plate including a metal foil with a conductive film 26 thereon; a separator 16 between the electrodes containing an electrolyte; and a cell enclosure surrounding the negative and positive electrodes and the separator and sealing the cell to contain the electrolyte within the cell, the cell enclosure including a plurality of perforations therein that provide electrical connection between adjacent cells.

An electrochemical device and an electronic device comprising the same. The electrochemical device comprises at least one bipolar current collector (10) sealedly connected with an outer package (20), forming two independent sealed cavities on both sides of the bipolar current collector (10), each of which comprises an electrode assembly (30) and an electrolyte, one side of the bipolar current collector (10) is electrically connected with the outermost positive electrode tab of the adjacent electrode assembly (30), and the other side of the bipolar current collector (10) is electrically connected with the outermost negative electrode tab of the adjacent electrode assembly (30). Through the introduction of the bipolar current collector (10) and the sealed design of the bipolar current collector (10) and the inner layer of the outer package (20), the ion insulation between the multiple electrode assemblies (30) is realized, and the reliability of the high-output voltage battery and the effective output of the electric energy are realized.

Lead acid batteries or battery cells, electrodes and bipolar plates for lead acid batteries or battery cells, and methods of making lead acid batteries or battery cells are provided. A lead acid battery includes a positive electrode and / or a negative electrode having a specific pore diameter distribution. The pore diameter distribution may include: a ratio of a volume of pores having a pore diameter greater than 20 [mu] m to a total pore volume of at least 15%; or a volume of pores having a pore diameter greater than 20 [mu] m of at least 0.020 ml / g.

The invention discloses a polar plate structure of a bipolar battery and a span bridge sealing mode, and belongs to the technical field of lead-acid storage batteries. According to the polar plate structure, by optimizing the frame design, improving the grid casting process and adopting the welding-free tab connection process, the problems of many process defects, high material consumption and high internal resistance existing in existing busbar connection are solved; according to the span bridge sealing mode, the design of a trapezoidal glue groove and accurate sealant filling are matched with continuous bending and stacking connection of the tabs, and extra butt weldments are omitted. Specifically, a pole plate frame is provided with a gradient bevel edge to optimize a current path, a grid is cast by adopting an H-shaped mold, a pole lug is prolonged, an active substance filling area is expanded, and the pole lug is bent twice to realize non-welding connection; the trapezoid glue groove is wide in top and narrow in bottom and controls the sealant filling amount. The lead-acid storage battery can reduce the lead consumption, eliminate the cold solder joint risk, reduce the internal resistance and improve the electrolyte diffusion efficiency and the assembly efficiency, and is suitable for large-scale production of the lead-acid storage battery.

The invention discloses a composite conductive substrate, a bipolar plate and a bipolar battery, and relates to the technical field of bipolar batteries, the conductive substrate is formed by stacking and combining a first current collector and a second current collector, the two current collectors are tightly attached to form a whole, and the first current collector and the second current collector are made of different metal foils; the first current collector comprises but is not limited to stainless steel foil, copper foil, aluminum foil, zinc foil and nickel foil; and the second current collector comprises but is not limited to stainless steel foil, copper foil, aluminum foil, zinc foil and nickel foil. By laminating and combining different metal foils, the problem that a single metal foil cannot meet the requirements of a bipolar battery conductive substrate on electrochemical compatibility, conductivity and mechanical property at the same time is solved; different metal foils and metal foil surface coatings (conductive layers) are respectively matched with positive and negative active materials, so that the interface side reaction is reduced, active substances are inhibited from falling off, the cycle life is prolonged, the charge-discharge power of the battery is increased, and the internal resistance of the battery is reduced.

To provide a biplate for a bipolar storage battery which has a simpler structure and can prevent a liquid junction through a through hole in a substrate, as a biplate for a bipolar storage battery produced by bringing both end surfaces of a conductor placed in a through hole in a substrate into contact with a positive electrode current collector plate and a negative electrode current collector plate placed on both sides of the substrate and joining them by a method such as resistance welding.SOLUTION: A positive electrode current collector plate 111a constituting one cell member 110 is disposed on one surface of a substrate 121, and a negative electrode current collector plate 112a constituting the other cell member 110 is disposed on the other surface of the substrate 121. The substrate 121 has a columnar through hole 121a extending in the thickness direction, and a columnar conductor 160 is provided in the through hole 121a. The conductive body 160 is fixed to the through hole 121a by an adhesive 151 disposed along the entire circumference between the outer peripheral surface of the conductive body 160 and the inner peripheral surface of the through hole 121a, and both end surfaces of the conductive body 160 are joined to the positive electrode current collector plate 111a and the negative electrode current collector plate 112a, respectively.SELECTED DRAWING: Figure 2

A system for creating a unit of a monopolar or bipolar lead acid battery includes a paste applicator for producing a wet paste, a first carrier structure for receiving the wet paste, and a second carrier structure for receiving an electrode substrate. A combination station combines the first carrier structure and the corresponding wet paste with the second carrier structure and the corresponding electrode substrate into an assembly. An ultrasonic welding system receives the assembly and provides mechanical pressure and ultrasonic energy to the assembly. At least one of the first carrier structure and the second carrier structure is removed via a removal station to create a modified component.

A method for manufacturing a lead-containing plate for a battery having at least one protrusion comprises the following steps: a) Providing a lead-containing workpiece, b) Providing a tool comprising a lower tool and an upper tool, wherein the lower tool and / or the upper tool has at least one recess, c) Positioning the workpiece between the lower tool and the upper tool, d) Arranging a deformable intermediate plate between the workpiece and the upper tool or the lower tool, e) Arranging a first rib and at least one second rib between the intermediate plate and the upper tool or the lower tool on a side of the intermediate plate facing away from the workpiece, f) Performing a relative movement along a first direction between the upper tool and the lower tool, in which a distance between the upper tool and the lower tool is reduced in order to exert pressure on the workpiece via the intermediate plate, the first bar and the at least one second bar, thereby causing a flow movement of the material of the workpiece in a second direction perpendicular to the first direction, wherein in step e) the first strip and the at least one second strip along the second direction are arranged spaced apart from each other, and Steps e) and f) are repeated several times to ensure that at least some of the workpiece material flows into the at least one recess to form the at least one projection.

There are provided a lead-acid battery management system and a lead-acid battery management program which appropriately manage a bipolar lead-acid battery to reduce a degree to which the lead-acid battery imposes a load on environment as much as possible and are necessary to cause a circulation cycle from manufacturing to reuse to reliably function. A lead-acid battery system (BS) including a bipolar lead-acid battery (B) and a management and support apparatus (4) configured to manage the lead-acid battery system (BS) are provided. The management and support apparatus (4) includes a recording unit (42) configured to record operation history information of the bipolar lead-acid battery (B) and a state determination unit (43) configured to determine necessity of replacement of the bipolar lead-acid battery (B).

To provide a bipolar lead-acid battery that can significantly reduce the occurrence of a short circuit caused by liquid.SOLUTION: A bipolar lead-acid battery 200 is so configured that a plurality of cell members 150 and resin substrates 110 are alternately laminated and the cell members are connected in series with one another. The cell member 150 has a positive electrode 151 including a lead layer 101 for a positive electrode and an active material layer 103 for a positive electrode, a negative electrode 152 including a lead layer 102 for a negative electrode and an active material layer 104 for a negative electrode, and an electrolyte layer 105 interposed between the positive electrode 151 and the negative electrode 152. The substrate 110 has communication holes 111a for causing one face and the other face of the substrate to communicate with each other. The bipolar lead-acid battery 200 comprises connection means 206 that is located inside the communication holes in the substrate, and electrically connects the lead layer for a positive electrode present on one face of the substrate and the lead layer for a negative electrode present on the other face of the substrate. At least part of the connection means is fixed and held over the total length in a substantially circumferential direction of an inner wall surface of the communication hole in the substrate.SELECTED DRAWING: Figure 3

A system to create a cell for a monopole or bipole lead acid battery includes a paster to produce wet paste, a first carrier structure to receive the wet paste, and a second carrier structure to receive an electrode substrate. A combining station combines the first carrier structure and corresponding wet paste and the second carrier structure and corresponding electrode substrate into an assembly. An ultrasonic welding system receives the assembly and provides mechanical pressure and ultrasonic energy to the assembly. A removal station via which to remove at least one of the first and second carrier structures to create a modified assembly.

Lead-acid batteries or cells, electrodes and bipolar plates for the same, and methods of manufacturing the same are provided. The lead acid batteries comprise a positive and / or negative electrode having a specific pore size diameter distribution. The pore size diameter distribution may comprise: a ratio of a volume of pores having a pore size diameter greater than 20 μm to a total pore volume of at least 15%; or a volume of pores having a pore size diameter greater than 20 μm of at least 0.020 ml / g.

Provided is a bipolar lead-acid battery relating to the technical filed of battery. The bipolar lead-acid battery includes a housing (1) with a battery cavity (11a) inside and a plurality of single cells (2) provided in the battery cavity (11a), each of the single cells (2) has an inner cavity (21) for electrolyte injection, and the inner cavity (21) of each single cell (2) is independent of one another, and the housing (1) has a plurality of air-distributing chambers (12a) communicating with the inner cavity (21) of the each of the single cells (2) in one-to-one correspondence above the battery cavity (11a), wherein the housing (1) further has a common pressure chamber (14a), the air-distributing chambers (12a) communicate with the common pressure chamber (14a) through vents (13a), respectively. The bipolar lead-acid battery has the advantages that it can be successfully manufactured and can be used normally, and solves the problems of short service life and unsuccessful manufacture of the existing battery.

A battery safety evaluation apparatus according to one aspect of the present invention includes a battery characteristic estimator, a heat amount estimator and safety index calculator. The battery characteristic estimator estimates an estimation value of an inner state parameter of a first battery on the basis of data on voltage and current of the first battery measured in charging or discharging. The heat amount estimator estimates a heat amount of the first battery upon change of an external temperature on the basis of first reference data which is at least indicating relationship between a heat amount of a secondary battery and the external temperature and is set to correspond to the first battery on the basis of the estimation value. The safety index calculator calculates a safety index regarding a temperature of the first battery upon change of the external temperature on the basis of the estimated heat amount.

Articles and methods related to the use of fiber webs comprising glass fibers in electrodes of batteries such as lead acid batteries are generally described. An electrode media provided herein may comprise a fiber web comprising glass fibers of different types. Electrode media provided herein may be configured to be pasted in order to produce an electrode or battery plate. In some embodiments, an article comprising a lug attached to an electrode media is provided. The electrode media described herein may be associated with good electrical, mechanical, and / or thermal performance properties that contribute to their utility in lead acid batteries.

Various systems and methods are presented in which lead acid batteries are serviced by removal, reconditioning, and refilling reconditioned battery paste into an assembly of typically bipolar electrodes that may be retained in a reusable housing and / or compression mechanism. Preferably, such batteries will include electrodes having a layer of a Magneli phase of a transition metal suboxide to so provide enhanced electrochemical and mechanical strength, and the battery paste may further include porous particles a Magneli phase of a transition metal suboxide to so provide enhanced electrolyte performance.

Provided is a bipolar battery that can achieve hermetic seal and mechanical strength in both and increase energy density. A bipolar lead acid battery (100) includes an outer wall (112), (122) integrally projected along a peripheral edge on a facing surface of one frame-plate (111), (121) out of frame-plates facing each other; and a joining wall (113), (133) integrally projected on a facing surface of the other frame-plate (111), (131) out of the frame-plates facing each other, the joining wall being positioned inwardly from the outer wall (112), (122) of the one frame-plate (111), (121) and surrounding a peripheral edge of a cell member (140) . The joining wall (113), (133) is joined to the facing surface of the one frame-plate (111), (121) via a joining material (151).

To prevent adhesive contamination at the center of an end face of a conductor in a biplate for a bipolar storage battery manufactured by a method including the step of inserting a conductor into a through hole from above with the other side of a substrate having a current collector fixed to one side facing upward, and then performing resistance welding in a state where a liquid adhesive layer is present in a portion other than the through hole on the other side of the substrate.SOLUTION: A substrate 121 includes a cylindrical through hole 121a extending in a thickness direction, and a conductor 160 disposed in the through hole includes a large diameter portion 161 with the diameter corresponding to the diameter of the through hole and small diameter portions 162a, 162b. The small diameter portions is formed in at least one of both ends of he conductor. Recesses 170a and 170b are formed by an outer circumferential surface 1621 of the small diameter portion, a step surface 1611 between the large diameter portion and the small diameter portion, and an inner wall surface 1211 of the through hole in at least one of both ends of the substrate in the thickness direction, and both end surfaces of the conductor are joined to a positive electrode current collector plate and a negative electrode current collector plate, respectively.SELECTED DRAWING: Figure 4