260results about "Lead-acid accumulators" patented technology

The invention provides an intelligent response nano-film and application thereof in waste lead-acid storage battery electrolyte recycling, and relates to the technical field of waste lead-acid storage battery electrolyte recycling, the intelligent response nano-film breaks through performance limitation of an existing film system through a specific intelligent material structure, and when heavy metal ions such as Pb < 2 + >, Fe < 3 + > and Cu < 2 + > enter the film, the intelligent response nano-film can be recycled, and the service life of the intelligent response nano-film is prolonged. The metal ligands are combined with metal ions to cause local shrinkage or closing of pore channels, so that the active defense and intelligent blocking effects of blocking heavy metals are achieved; and when SO4 < 2-> and H < + > pass through the channel, membrane pore channels are kept in an open state, so that rapid acid flux (namely the amount of substance passing through the membrane layer in unit time) of sulfuric acid is realized. The intelligent response nano film has a programmable aperture of a polymer liquid crystal network and an intelligent response valve mechanism of metal, and selective separation of heavy metal and sulfuric acid is realized by stimulating reversible adjustment of an induced film structure.

The invention discloses a composite cathode and anode plate made of a lead-carbon composite material, the composite cathode and anode plate comprises a current collector, a transition layer and an active layer which are compounded in sequence, the transition layer tightly coats the outer surface of the current collector, the active layer tightly coats the outer surface of the transition layer, and the composite cathode and anode plate is prepared by the following method: S1, preparing the composite cathode and anode plate; raw material pretreatment: placing the carbon material in a vacuum oven; according to the invention, the structural design of the composite negative plate and the preparation process are integrated, so that accurate matching of the raw material ratio and the process parameters is realized, and many defects of the traditional electrode are effectively solved; the three-layer gradient structure improves the interface bonding force, and delamination is avoided; the optimized raw material system and the preparation process have a synergistic effect, so that the hydrogen evolution overpotential is remarkably improved, the internal resistance is reduced, the cycle life is prolonged, the low-temperature performance is improved, the energy density is improved, and a reliable technical scheme is provided for the application of the lead-acid storage battery in the high-end field.

A positive electrode lead paste for a high-capacity and long-service-life storage battery and a preparation method therefor. The formula of the positive electrode lead paste comprises lead powder, dilute sulfuric acid, water and additives. In parts by mass, the additives added to every 1000 parts of the lead powder comprise: 1-3 parts of sodium perborate; 0.5-2 parts of 4BS; 1-3 parts of antimony trioxide; 1-3 parts of tin pyrophosphate; 2-4 parts of a polyolefin; 2-4 parts of a conductive carbon material; and 1-1.5 parts of a polyester staple fiber. By adding tin pyrophosphate and the polyolefin in the positive electrode lead paste, the capacity of a lead storage battery can be effectively increased and the service life thereof can be prolonged; and tin pyrophosphate and the polyolefin can work synergistically, and the addition of the two together achieves a better effect.

The invention relates to a lead-acid battery negative electrode additive as well as a preparation method and application thereof, and belongs to the technical field of lead-acid storage batteries. The additive consists of sulfonated modified lignosulfonate (component A), a graphene oxide-carbon nanotube hybrid conductive agent (component B) and a mixture of modified humic acid and boric acid (component C) which are respectively used as a crystallization template agent, a conductive network construction agent and an interface film forming regulator. During preparation, a component A is prepared through a sulfomethylation reaction, a component B is prepared through ultrasonic mixing of graphene oxide and a carbon nanotube dispersion liquid, a component C is prepared after humic acid is subjected to acid pickling purification and oxidation treatment and then mixed with boric acid, and finally the three components are mixed to obtain a finished product. The additive is added into the negative electrode lead paste, can inhibit negative electrode sulfation, improve electrode conductivity, reduce hydrogen evolution side reaction and prolong the cycle life and charge-discharge efficiency of the battery, and is suitable for production of various lead-acid batteries.

The application discloses a lead-based composite material and a preparation method thereof, a lead-acid battery composite current collector and a lead-acid battery, wherein the lead-based composite material comprises: a substrate; a conductive MXene layer arranged on the surface or part of the surface of the substrate; a metal modification layer arranged on the surface of the conductive MXene layer, wherein the metal type of the metal modification layer is selected from one or more of copper, nickel, silver, gold, platinum, magnesium, zinc, tin, chromium, antimony and bismuth; and a lead-based layer arranged on the surface of the metal modification layer. By jointly using the metal modification layer and the conductive MXene layer, the problem of poor composite bonding force between different substrate surfaces and the lead-based layer can be solved.

The invention relates to the technical field of lead-acid batteries and novel electrochemical energy storage materials, in particular to a graded porous carbon negative electrode material with nano-metal synergistic activity and application of the graded porous carbon negative electrode material in a long-life lead-carbon battery. The material takes hierarchical pore structure carbon as a matrix (which has micropores, mesopores and macropores at the same time, and the specific surface area reaches 1000m < 2 > / g), and is uniformly loaded with nano metal particles (such as Fe, Co, Sn and the like with the particle size of lt; and the content is 1%-10%). By optimizing the carbon pore structure and introducing the nano-metal, sulfation is remarkably inhibited, the capacitance effect is enhanced, and the hydrogen evolution reaction is reduced, so that the cycle life of the lead-acid battery is prolonged, and the charge-discharge performance of the lead-acid battery is improved. The preparation method is simple and controllable, is suitable for a lead-acid battery negative electrode additive, can be widely applied to the fields of start-stop batteries, energy storage systems and the like, and has important industrial application value.

The invention discloses a long-life power lead-acid storage battery based on electrolyte-polar plate synergistic modification, and relates to the technical field of lead-acid storage batteries. According to the invention, the carbon nanotubes, the potassium sodium tartrate and the sodium sulfate are added into the electrolyte of the lead-acid storage battery, the graphene and the lanthanum oxide are doped into the positive active material, and the surface of the negative electrode is coated with the polypyrrole layer, so that the synergistic modification of the electrolyte and a polar plate is realized; according to the design, the conductivity is remarkably improved, the polar plate vulcanization is inhibited, and the structural stability is enhanced, so that the cycle life and the capacity retention ratio of the battery are greatly improved.

The invention discloses a roller drying device for lead-acid storage battery diaphragm production, and relates to the technical field of diaphragm production, the roller drying device comprises a drying module arranged at the output end of an extrusion molding module, and the drying module is used for drying a diaphragm body after molding and output; the drying module comprises a supporting frame, a drying cylinder is fixedly arranged on the supporting frame, and a material opening used for inputting and outputting the diaphragm body is formed in the direction, facing the output end of the extrusion molding module, of the drying cylinder; when a diaphragm body penetrates through the outer layer drying rollers and the inner layer drying rollers, the diaphragm body is in direct contact with the outer layer drying rollers and the inner layer drying rollers, so that the diaphragm body can be dried in the outer layer drying rollers and the inner layer drying rollers; the outer-layer drying roller and the inner-layer drying roller can conduct high-temperature drying treatment on the two faces of the diaphragm body, due to the fact that the drying cylinder has a certain heat preservation effect, high-temperature air in the drying cylinder can also achieve the effect of drying the diaphragm body, and the drying efficiency is improved.

A lead-acid battery includes an element and an electrolyte solution. The element includes a positive electrode plate containing a positive electrode material, a negative electrode plate containing a negative electrode material, and a separator interposed between the positive electrode plate and the negative electrode plate. The negative electrode material contains a first carbonaceous material having a particle size of less than 32 µm and a fatty acid having 8 or more and 30 or less carbon atoms. A content Cc of the first carbonaceous material in the negative electrode material is 0.4 mass% or more. When the content of the fatty acid on a mass basis in the negative electrode material is represented by Cf (ppm), the specific surface area of the negative electrode material is represented by Sn (m2 / g), and the DBP oil absorption of the first carbonaceous material is represented by Y, at least one of the condition (i) or the condition (ii) is satisfied. (i) The ratio Cf / Y is 0.1 ppm ·mL-1 ·100 g or more. (ii) The ratio Cf / Sn is 20 ppm ·m-2 ·g or more.

SOLUTION: A lead acid battery includes at least one plate group and an electrolyte, in which the electrode plate group includes a positive electrode plate containing a positive electrode material, a negative electrode plate, and a bag-shaped separator interposed between the positive electrode plate and the negative electrode plate, and the separator accommodates the positive electrode plate, and a ratio (=A / B) of the pore volume A (mL) of the positive electrode material to the volume B (mL) in the separator excluding the positive electrode plate is 0.13 or more and 0.75 or less.SELECTED DRAWING: Figure 1

The invention relates to a system comprising a stacking aid (2) and a plurality of cells (3) arranged within the stacking aid (2), the stacking aid (2) having a support element (7) and two side walls (8, 9) orthogonal thereto, which receive the support element (7) therebetween, the support element (7) receiving the plurality of cells (3), according to the invention, the cells (3) are arranged one above the other in a row (10) in the vertical direction, a positioning aid (18) is arranged between two rows of cells (3) arranged one above the other in the vertical direction (16), said positioning aid (18) being designed in two parts, including a first part (19) and a second part (20), which are detachably connected to one another. According to the invention, a connecting piece (21) is provided which, in the final assembled state, engages in a form-fitting manner in a first recess (22) provided by the first part (19) and in a second recess (23) provided by the second part (20).

The invention provides a composition for positive electrode lead paste, the positive electrode lead paste and a preparation method and application of the positive electrode lead paste, and particularly relates to the technical field of battery energy storage. The composition for the positive lead paste is prepared from the following components in parts by weight: 0.02 to 0.04 part of binder, 0.1 to 0.3 part of pore forming agent, 0.01 to 0.03 part of first conductive agent and 0.2 to 0.3 part of second conductive agent, wherein the first conductive agent is a linear conductive agent; and the second conductive agent is a sheet-shaped conductive agent. The composition for the positive electrode lead paste significantly improves the cycle life and the charge-discharge performance of the battery. According to the composition, through the synergistic effect of all the components, the energy density is improved, meanwhile, the long cycle stability is considered, and the technical problem that the utilization rate and the cycle life of active substances in a traditional lead-acid battery are difficult to consider at the same time is solved.

A battery system with a large lithium-ion battery powers auxiliary devices by discharging battery cells distributed among multiple battery packs. The discharge of the battery cells is effectively controlled while maintaining the expected lifespan of the lithium-ion battery cells. Each battery pack internally supports a battery management system and can have identical components, thus supporting easy scalability to higher power / energy architectures. Battery packs can be added or removed without interfering with the user, wherein one of the battery packs serves as the master battery pack and the remaining battery packs serve as slave battery packs. When the master battery pack is removed, one of the slave battery packs becomes the master battery pack. The master battery pack and the slave battery packs coordinate the charging and discharging of the battery cells via a communication channel such as a Controller Area Network (CAN) bus.

To provide an electric power storage module configured to prevent an electrolyte from spattering.SOLUTION: An electric power storage module comprises: a module body having an electrode stack including a plurality of stacked electrodes; and a pressure-regulating valve 22 attached to the module body. The pressure-regulating valve 22 is provided with: a housing 23 having a bottom wall 32 provided with a through hole 33 that communicates with an internal space that is formed between the plurality of electrodes and accommodates an electrolyte, a side wall 40 facing the bottom wall 32 in a Y-axis direction, and a protrusion 43 provided on the side wall 40; and a valve 30 accommodated inside the housing 23 so as to close off the through hole 33. The side wall 40 is provided with a first hole 41 that is open on an external surface 40a of the side wall 40, and a second hole 42 that is open on the external surface 40a of the side wall 40 and positioned vertically above the first hole 41. The protrusion 43 protrudes outward along the Y-axis direction on the external surface 40a and extends so as to divide the first hole 41 and the second hole 42 when viewed from the Y-axis direction.SELECTED DRAWING: Figure 12

A method of making metal battery grids for lead-acid battery manufacture, as well as a metal battery grid manufacture assembly for lead-acid batteries, are set forth. A cleaning operation is performed to a continuous strip of metal battery grids that is continuously produced. The cleaning operation involves emittance of one or more laser beams via one or more laser assemblies to one or more exterior surfaces of the continuous strip of metal battery grids. Residual lubricants, oils, corrosion, and / or other additives or unwanted contaminants residing at the exterior surface(s) can be partially or wholly removed via the emittance of the laser beam(s). Enhanced surface adherence of a subsequently-applied battery paste material at the exterior surface(s) can result.

The utility model relates to the technical field of storage battery top covers, in particular to a top cover exhaust structure of a lead-acid storage battery, which comprises a cover plate, a labyrinth channel is arranged at the lower end of the cover plate, fixing sleeves are fixedly mounted at four corners of the lower end of the cover plate, and four exhaust outer pipes are connected to the upper end of the cover plate in a penetrating manner. The four exhaust outer pipes are distributed in a rectangular array mode, and filtering pieces are detachably installed in the four exhaust outer pipes. A connecting groove is formed in the upper end of the exhaust outer pipe, an exhaust groove communicated with the interior of the connecting groove is formed in the lower end of the exhaust outer pipe, a one-way flexible diaphragm is fixedly arranged in the exhaust groove, and four clamping grooves are formed in the inner surface of the connecting groove in an annular array mode. According to the top cover exhaust structure of the lead-acid storage battery, the safety, the environmental protection property and the protection capability of the battery are improved, meanwhile, the top cover exhaust structure is easy to maintain, the service life is prolonged, and the overall reliability is enhanced.

The invention relates to the technical field of batteries, in particular to a battery monomer, a battery device and a power utilization device. The battery monomer comprises a positive pole piece, a negative pole piece and a separator, the positive pole piece comprises a positive current collector and a positive film layer arranged on at least one surface of the positive current collector; the positive electrode film layer comprises a positive electrode active material, and the positive electrode active material comprises an inner core layer and a shell layer at least partially coating the surface of the inner core layer; the inner core layer comprises lithium manganese iron phosphate, and the shell layer comprises a ternary positive electrode material; the average particle size ratio of the lithium manganese iron phosphate to the primary particles of the ternary positive electrode material is (1-500): 1 and is not equal to 1: 1. The battery monomer disclosed by the invention has excellent rate capability, cycle performance and safety performance.

The utility model discloses a lead storage battery and its color chip structure relates to battery preparation technical field, including first spacing portion and the second spacing portion that is formed with first spacing portion integrated casting, the first spacing portion is equipped with the first through hole that is used for the copper core to pass through, the first through hole passes through the first spacing portion and the second spacing portion, and the second spacing portion is equipped with the second through hole that is used for the copper core to pass through. The diameter of the first limiting part is larger than that of the second limiting part, and the second limiting part is provided with a limiting block used for being matched with a battery cover. The color piece structure is formed by integrally pouring color glue, during installation, the second limiting part is matched with the battery cover through the limiting block, the first limiting part covers the connecting position of the battery cover and the second limiting part, dust and other sundries are prevented from falling into the battery cover, and on the basis that color identification is achieved on the positive electrode and the negative electrode, installation operation is convenient and fast; and the appearance reject ratio is reduced. The step is formed, so that the matched contact area of the first limiting part and the copper core is increased, and the stability of connection between the color chip structure and the copper core is improved.

The present invention provides a lead-acid battery that can suppress PCL (polycrystalline chloride) when phosphorus is added to the electrolyte. [Solution] A liquid lead-acid battery 1 comprising a positive electrode plate 3, a negative electrode plate 2, an electrolyte, and a separator 4 interposed between the positive electrode plate and the negative electrode plate, wherein the positive electrode plate includes a positive electrode current collector and a positive electrode material, and at least the electrolyte and the positive electrode material contain phosphorus, and the value obtained by dividing the sum of the amount of phosphorus (mmol) contained in the electrolyte and the amount of phosphorus (mmol) contained in the positive electrode material by the volume (L) of the electrolyte is 8 mmol / L to 100 mmol / L, the phosphorus contained in the electrolyte exists as anions derived from phosphoric acid, and the positive electrode material contains antimony, the antimony content of the positive electrode material is 1 μmol / g to 15 μmol / g.

A lead acid battery includes a positive electrode comprised of a grid filled with a lead-based active mass. A negative electrode is comprised of a base material. A spacer maintains a distance between the positive and negative electrodes. The battery further includes an active metal and an electrolyte solution. In a process of discharge, the active metal is dissolved in the electrolyte solution, and in a process of charge, the active metal is deposited onto the base material.

The invention provides a method for safely charging a lead-acid storage battery, which belongs to the technical field of lead-acid storage batteries, and comprises the following steps: S1, determining the model of a lead-acid storage battery to be charged, recording the inventory environment temperature and the inventory day number of the lead-acid storage battery, and measuring the internal resistance of the storage battery before charging; s2, building an acid mist collecting and monitoring system of the storage battery; s3, the charger charges the storage battery, and the internal temperature of the storage battery, the gas flow rate in the guide pipe and the internal pressure of the storage battery are monitored in real time in the charging process; and S4, judging the acid mist discharge amount, the gas flow rate and the internal pressure of the storage battery. According to the method for safely charging the lead-acid storage battery provided by the invention, the acid mist discharge amount is reduced from multiple dimensions of the source, the process and the adaptability through the step-by-step design of parameter ranking before charging, dynamic monitoring during charging and accurate intervention during abnormality, the corrosion of the acid mist to a customer vehicle is practically avoided, and the use quality of the vehicle and the charging safety of the storage battery are guaranteed.

According to the positive electrode and the negative electrode of the high-humidity high-low-temperature-alternating-resistant long-service-life lead-acid storage battery and the preparation method and application of the positive electrode and the negative electrode, high-humidity high-low-temperature alternating can be resisted, after a high-humidity high-low-temperature alternating experiment, the battery capacity preservation rate is 60% or above, the capacity recovery rate is larger than or equal to 95%, and the positive electrode and the negative electrode are suitable for being used in the environment with the humidity being 85% and the large alternating temperature difference of minus 40 DEG C and 65 DEG C.

A method for estimation of temperature distribution of a battery (10) is described. The method is implemented by the battery management system (BMS). The battery has a shell that includes a housing and a cover. The housing and the cover of the shell define an interior space. The method includes determining at least one of a finite element analysis (FEA) and a thermal model and computational fluid dynamic (CFD) thermal model based on at least one temperature value associated with a temperature of the interior space, determining a reduced order model (ROM) based on at least one of the FEA thermal model and the CFD thermal model, and determining a location inside the battery for placement of a battery sensor configurable to measure temperature. The location is determined based upon at least one of the FEA thermal model, the CFD thermal model, and the ROM.

The aqueous electrolyte secondary battery contains an element and an aqueous electrolyte solution. The element includes a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate. A chemical oxygen demand in the aqueous electrolyte solution is 5 mg / L or more and 160 mg / L or less.

The invention discloses lead-acid storage battery pole plate curing equipment of a semi-dome structure and a transformation method thereof.The lead-acid storage battery pole plate curing equipment comprises a rectangular curing chamber, a semi-dome cover, a flow guide mechanism, a sealing door and a pole plate placing frame, the top of the rectangular curing chamber communicates with the semi-dome cover, and flow guide plates are installed in the rectangular curing chamber and the semi-dome cover correspondingly; the dome design promotes formation of natural convection, a right-angle dead zone in the traditional design is eliminated, and the heat transfer efficiency is improved due to more uniform temperature distribution by optimizing an airflow path and improving the heat transfer efficiency; the temperature distribution uniformity is greatly improved, the semi-dome design promotes natural convection, a traditional right-angle dead zone is eliminated, the temperature deviation can be controlled within + / -2.5 DEG C, the curing quality consistency of the polar plate is improved, the energy consumption is remarkably reduced, and by optimizing the airflow path and the heat transfer efficiency, due to the fact that the temperature distribution is uniform, the heat transfer efficiency is improved, and the curing time is shortened; and the dome design reduces dead angles and accumulated dust, is convenient to maintain and prolongs the service life of equipment.

The application relates to the field of lead-carbon batteries, in particular to a self-stirring water circulation rich-liquid lead-carbon battery, which comprises flat plate-shaped electrodes arranged in a closed battery box, the flat plate-shaped electrodes are arranged vertically to the bottom surface in the battery box, and plate carbon material is arranged above the flat plate-shaped electrodes in the battery box; the flat plate-shaped electrodes are supported by flat plate-shaped grids with through holes; carbon material is filled and coated on the lower part of a vertically arranged grid, negative active material is filled and coated on the grid above the carbon material to form a negative electrode; and positive active material is filled and coated on another grid to form a positive electrode.

To provide a lead sulphate coating removal device which is low in power consumption and which gives no damage to an electrode of a lead storage battery.SOLUTION: A lead sulfate coating removal device which removes a lead sulfate coating generated on an electrode of the lead storage battery and which comprises: a generation unit which generates, on the basis of a signal extracted from the lead storage battery, a removal signal for the lead sulfate coating having a peak value of 550-750 mA, a pulse width of 5-100 nsec, and a frequency of 5-50 kHz; and a supply unit which supplies the removal signal generated by the generation unit to the electrode of the lead storage battery.SELECTED DRAWING: Figure 1

The present application relates to the technical field of battery maintenance, and particularly relates to a lead-acid battery fast charging control method and system, the method of the present application firstly acquires the charge-discharge data of a battery, wherein the charge-discharge data is used to represent the charge-discharge index of the battery; then, according to the charge-discharge data, the charging parameter is determined; next, according to the charging parameter and the Mas charging curve, the battery is charged for a predetermined time; finally, the charging parameter is corrected by discharging the battery for a predetermined time. The embodiment of the present application can acquire the maximum receivable starting charging current of the battery without relying on a strict test process of the battery, only by acquiring the charge-discharge parameter through the charge-discharge when the battery is connected, finding the matched charging curve, and charging based on the charging curve, the fast charging can be completed under the premise of as little as possible affecting the life during charging, thus, the battery life is guaranteed, and the charging efficiency is improved.