937results about "Lead-acid accumulators" patented technology

The present invention belongs to the technical field of lead-acid storage batteries. Disclosed is a negative electrode lead paste capable of inhibiting hydrogen evolution and prolonging the cycle life of a battery. The negative electrode lead paste comprises the following components: high-purity humic acid, sodium lignosulfonate, precipitated or superfine barium sulfate, carbon black, acetylene black, a graphite powder, modified graphene, zinc oxide, super-strong polyester staple fibers, a lead powder, dilute sulfuric acid and deionized water. A conventional blended paste fabrication process is not changed; by adding the modified graphene, the conductivity and dispersibility of graphene is improved; by adding the zinc oxide, not only is the hydrogen evolution reaction of a battery inhibited, but thermal passivation is also reduced; and lignin and humic acid also have the effect of inhibiting hydrogen evolution.

The invention relates to a hybrid scrim / paste paper material for a plate-shaped battery electrode (2, 3) of a lead-acid battery, in particular for a positive plate-shaped battery electrode (2) of a lead-acid battery (1), wherein the scrim / paste paper material is designed as a nonwoven or woven mat and comprises: - fibers made of a first material which is chemically unstable, such that the fibers made of the first material dissolve at least substantially upon contact with an electrolyte of the lead-acid battery (1), in particular during the manufacture of the lead-acid battery (1); - fibers made of a second material which is chemically stable at least to the extent that the fibers made of the second material do not dissolve, or do not dissolve substantially, upon contact with the electrolyte of the lead-acid battery (1), in particular during the manufacture of the lead-acid battery (1);and - optionally a binding agent for the fibers from the second material;

The invention relates to the technical field of battery intelligent charging, in particular to an intelligent charging system for a solid-state lead battery energy storage power station. The method comprises the following steps: acquiring a real-time impedance characteristic parameter set and a real-time battery operation parameter set, and determining a multi-dimensional battery state data set according to the real-time impedance characteristic parameter set and the real-time battery operation parameter set; obtaining a renewable energy power generation data set, and based on the renewable energy power generation data set and according to the multi-dimensional battery state data set, carrying out evolution analysis on solid electrolyte impedance fluctuation, and constructing a solid electrolyte impedance evolution model; determining an adaptive battery charging strategy according to the solid electrolyte impedance evolution model; and according to the self-adaptive battery charging strategy, power station charging parameters are adjusted, and a charging adjustment report is determined and output. The passivation speed of the solid electrolyte in the solid lead battery can be slowed down under the condition of intermittent fluctuation of renewable energy power generation, and the service life of the battery is prolonged.

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with a battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

The invention discloses positive lead paste for a lead storage battery and a preparation method of the positive lead paste. The formula of the positive lead paste comprises lead powder, dilute sulphuric acid, water and an additive, and the additive comprises the following components in parts by mass: 2-6 parts of manganese dioxide / three-dimensional carbon-based composite electrode material, 1-2 parts of antimony trioxide, 1-2 parts of stannous mono-sulphate, 20-50 parts of red lead and 0.8-1.2 parts of polyester fiber. The manganese dioxide / three-dimensional carbon-based composite electrode material is adopted to replace conductive graphite and other conductive carbon materials, the conductivity is good, a stable three-dimensional structure is achieved, the active substance structure can be fixed during discharging, the positive active substance is effectively prevented from being softened, and the service life of the battery is prolonged; manganese dioxide has an oxidation catalysis function and can catalyze the efficiency of converting lead sulfate into lead dioxide, so that the charging capacity of the positive plate is greatly improved during charging, and side reactions are reduced; the composite electrode material has high specific capacitance, and the discharge capacity of a positive plate is improved during discharge.

To provide a separator with which it is possible to improve high temperature overcharge life performance in a lead storage battery.SOLUTION: This separator for lead storage batteries includes a crystalline region and an amorphous region. In the X-ray diffraction spectrum of the separator, the crystallinity index indicated by 100×Ic / (Ic+Ia) is 20% or greater. Ic represents the integrated intensity of diffraction peaks, the peak heights of which among the diffraction peaks equivalent to the crystalline region are maximum. Ia represents the integrated intensity of hollows equivalent to the amorphous region.SELECTED DRAWING: Figure 1

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with a battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with a battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

The invention discloses a lead-sodium storage battery positive electrode lead paste in the technical field of storage batteries. The lead-sodium storage battery positive electrode lead paste comprises the following components in parts by weight: 100 parts of lead oxide powder, 6-10 parts of sulfuric acid, 14-24 parts of deionized water, 0.05-0.07 part of short fibers, 2-8 parts of lead dioxide, 1-2 parts of tetrabasic lead sulfate, 0.5-1.5 parts of calcium sulfate, 0.05-0.15 part of stannous sulfate, 0.05-0.15 part of antimony trioxide, 0.5-1 part of carbon black, 0.1-0.2 part of carboxymethyl cellulose sodium and 0.1-0.5 part of a mixed carbon material. By improving the design of the process, the formation efficiency and low-temperature performance of the storage battery can be effectively improved, and the service life of the storage battery can be effectively prolonged.

A method performed by battery charger configured to charge a vehicle battery, the method comprising charging the vehicle battery until a first measured voltage over the battery exceeds a first voltage threshold, halting charging for a third time period, measuring a second voltage over the battery at the end of the third time period, determining a battery type using a differential voltage, by calculating a difference of the first voltage threshold and the second voltage, and a set of predetermined conditions, wherein the predetermined conditions comprise:battery⁢ type={Udiff>UPb→lead-acid⁢ battery⁢ typeUdiff<ULi→lithium⁢ battery⁢ typeUPb>Udiff<ULi→unknown⁢ battery⁢ type

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with a battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

There is provided a battery management system for an electric vehicle. The battery management system comprises a first load connector, a second load connector, a first switch, a first battery connector, a second battery connector and a control unit. The first load connector is connectable to a first group. The second load connector is connectable to a second group. The first battery connector is connectable to a first battery. The second battery connector connectable to a second battery. The battery management system is adapted to transfer electric energy from the first battery via the first switch to the first group and to the second group. The battery management system is adapted to connect the second battery to the second group. The control unit is configured to receive a signal representative of a dangerous situation for the first battery. The control unit is configured, in response to the signal, to switch the first switch to disconnect the first battery from the first group and from the second group, and to start transferring electric energy from the second battery to the second group.

The present application relates to the technical field of lead-acid storage batteries. Disclosed is a lead paste of a lead-acid storage battery. The lead paste comprises the following components in parts by weight: 100 parts of a lead powder, 10-12 parts of water, and 9.5-11 parts of sulfuric acid. When the lead paste is used as positive electrode lead paste, the lead paste further comprises 9-11 parts of a positive electrode auxiliary material; and when the lead paste is used as a negative electrode lead paste, the lead paste further comprises 25-35 parts of a negative electrode auxiliary material. The lead paste prepared in the present application can increase the utilization rate of a positive electrode active material, and prolong the service life of a battery while ensuring the capacity of the battery. Zinc-dioxide-coated glass fibers are added to the positive electrode auxiliary material, and the oxide has stable properties in a PbO2 / PbSO4 electrode reaction zone; during the long-term operation process of a battery at a high temperature, a trace amount of zinc dioxide covering the glass fibers permeates into an electrolyte solution; therefore, the formation efficiency of the battery is improved, and the utilization rate of the positive electrode active material is improved.

The invention relates to the technical field of lead-acid battery packs, in particular to a traction lead-acid storage battery convenient to install, which comprises a shell, a battery module is arranged in the shell, a lifting plate is arranged at the lower end of the battery module, and the lifting plate drives the battery module to be slidably connected into the shell. A first shock absorption assembly and a second shock absorption assembly which are used for shock absorption of the battery module are arranged below the lifting plate, the first shock absorption assembly and the second shock absorption assembly are matched to circulate hot air in the shell, so that the working temperature of the battery module is reduced, and a supporting assembly used for stable installation is arranged on the outer wall of the shell; a locking structure used for locking the supporting assembly is arranged in the supporting assembly. A rack drives a gear to drive a two-way lead screw to rotate, the two-way lead screw drives a rubber strip to abut against the inner wall of a mounting groove through a sliding plate and a supporting plate, then the position of the rack is fixed through a locking structure, the supporting assembly is locked, and at the moment, the shell is attached to the mounting groove through the supporting assembly; and the stability after installation is further improved.

The present invention relates to a polypropylene composition and a method for preparing the polypropylene composition. The polypropylene composition according to the present invention has improved stress whitening resistance. The present invention also relates to a battery case comprising the polypropylene composition.

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.

Embodiments of the present disclosure generally relate to battery management systems, and more particularly relate to a battery regeneration system for optimizing de-sulfation of a lead- acid type storage battery and method thereof The battery regeneration system (100) includes sensors (102), a processor (108), and a memory unit (110). The sensors determine battery parameters during charging and discharging cycles. The processor analyzes the parameters to assess sulphation severity and conductive medium levels in lead-acid battery (104). Using AI- based techniques, processor selects very high-frequency cross-pulsing technique for de- sulfation. The system generates pulse sequence data with adjustable frequency and amplitude, transmitting it to control unit (114) for de-sulfation. Periodically, pulse frequency and amplitude are adjusted within predefined ranges. The control unit receives and applies modified data to lead-acid battery, charging battery to its original condition after de-sulfation. The system also communicates conductive medium level to Battery Monitoring System (BMS) (118).

The present application is directed to methods for solvent-free preparation of polymers and their subsequent processing into activated carbon materials. These methods unexpectedly demonstrate ability to tune pore structure in the polymer gel and carbon produced there from, while also providing distinct advantages over the current art.

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.

The utility model discloses a lead-acid battery and sodium-ion battery mixed energy storage system which comprises a sodium-ion battery pack string, a lead-acid battery, a lead-acid battery management system, a controller module and a heating plate, the lead-acid battery management system comprises a first temperature sensor, a second MCU and an RS485 communication interface, and the second MCU is connected with the first temperature sensor and used for collecting temperature data of the lead-acid battery and sending the temperature data of the lead-acid battery to the controller module through the RS485 communication interface; the heating plate is connected with the sodium-ion battery pack string through the first relay, the controller module controls the first relay to achieve connection and disconnection between the heating plate and the sodium-ion battery pack string, the temperature of the lead-acid battery is stabilized between 20 DEG C and 25 DEG C through the heating plate, and the capacity of the lead-acid battery is kept in the optimal state.

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 discloses a polymer composite separator for a lead-acid storage battery and a preparation method thereof, and belongs to the technical field of separator preparation, the polymer composite separator comprises the following raw materials by weight: 40-55 parts of ultra-high molecular weight polyethylene, 0.5-1 part of an initiator, 0.5-1.5 parts of sodium allyl thioglutamate, 105-115 parts of silicon dioxide, 10-20 parts of alkyl succinic anhydride modified cyclodextrin, and 180-260 parts of filling oil; the preparation raw materials of the sodium allyl thioglutamate comprise glutamic acid and allyl isothiocyanate, the sodium allyl thioglutamate and the alkyl succinic anhydride modified cyclodextrin are introduced into the preparation raw materials of a traditional PE partition plate, and finally the prepared polymer composite partition plate for the lead-acid storage battery has high porosity and low resistivity; and the anti-oxidation performance is excellent, the puncture-resistant strength is high, and the development of the lead-acid storage battery industry towards the direction of high energy density and long cycle life is facilitated.

The invention discloses a lead-acid storage battery vent bolt which comprises a bolt body, a cylindrical containing cavity is formed in the bolt body, a clamping groove used for being connected with a gas filtering piece in a clamping mode is formed in the end, corresponding to the containing cavity, of the bolt body, and a long-strip-shaped groove hole is formed in the side wall, corresponding to the other end of the containing cavity, of the bolt body; the suppository core is detachably connected into the containing cavity, a plurality of partition plates are sequentially and obliquely arranged on the suppository core at intervals from one end to the other end, a reverse inclination angle is formed between every two adjacent partition plates, supporting columns are arranged between every two adjacent partition plates, and the partition plates divide a plurality of partition cavities in the containing cavity from one end to the other end. According to the single-layer cover of the lead-acid storage battery, the risk of liquid overflow can be reduced, the single-layer cover is convenient to disassemble and use, and the requirement of an exhaust system for mutually independent unit cells required by the design of a single-layer cover of the lead-acid storage battery is met.

The embodiment of the invention discloses a secondary battery and electric equipment, the secondary battery comprises an electrode assembly, the electrode assembly comprises a plurality of first pole pieces and a plurality of second pole pieces, and the secondary battery comprises a first coating; the first coating comprises a plurality of first coating blocks, the plurality of first coating blocks are arranged on the surface, facing the second pole piece, of the first pole piece, a first channel is formed between any two adjacent first coating blocks, the first channel is at least communicated with one edge of the first pole piece, and the first channel exposes at least part of the surface, facing the second pole piece, of the first pole piece; the first coating is melted when the temperature is higher than a first preset temperature and at least partially covers the first channel, the area of the first pole piece covered by the first coating after melting is X1, the area of the first pole piece covered by the first coating before melting is Y1, and X1 is larger than Y1. According to the embodiment of the invention, the area of the first coating after melting is increased, so that heat generated by continuous contact reaction between the active particles of the first pole piece and the electrolyte can be slowed down, and the probability of thermal runaway of the secondary battery is reduced.

The invention discloses a battery repair liquid and repair filling equipment thereof, and the battery repair liquid comprises deionized water, and further comprises a vulcanization supplement and an electrolyte supplement according to repair type requirements; the vulcanizing supplement further comprises a chelating agent, a sodium sulfate solution, a corrosion inhibitor and a polyoxyethylene ether surfactant; the invention relates to the technical field of battery repair, through deep cooperation of a targeted repair liquid formula and intelligent equipment, the core damage problems of lead-acid battery vulcanization, electrolyte degradation and the like are solved, a modular storage tank, a dynamic mixing system and a multi-mode activation technology are innovatively integrated, the repair efficiency is greatly improved, the equipment adopts a portable design, and the cost is low. And rapid deployment and multi-scene application are supported, a vulcanization / electrolysis double-repair mode can be accurately matched in cooperation with an intelligent diagnosis system, a single machine can complete a complex repair process needing cooperation of multiple sets of equipment in a traditional process, and the repair efficiency is improved.

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 invention relates to a graphene lead oxide powder composite material as well as a preparation method and application thereof, belongs to the technical field of composite materials, and aims at solving at least one of the problems of complex preparation method, high cost, low purity, low graphite-to-graphene conversion rate, poor performance and the like of the existing graphene lead oxide powder composite material. The preparation method of the graphene and lead oxide powder composite material comprises the steps that graphite powder, lead nitrate and ammonium nitrate react for 2-4 h at the temperature of 400-500 DEG C, gas generated in the reaction is recycled, solids obtained in the reaction are ground, and the graphene and lead oxide powder composite material is obtained. The graphene and lead oxide powder composite material can be obtained only through one-step reaction, only graphite powder needs to be adopted as a raw material, expensive graphene does not need to be used, the production process is simple, any intermediate operation is not needed, the carbon content of the graphene and lead oxide powder composite material prepared through the method is 18-28%, the purity is 80-90%, and the graphene and lead oxide powder composite material is suitable for industrial production. And the conversion rate from graphite to graphene is 80-90%.

The invention discloses a mining lead-acid storage battery lead sulfate crystal substance removing device which comprises a conveying belt moving structure, a pretreatment structure, a crystal removing structure, a detection structure and a discharging assembly are fixed to the conveying belt moving structure, the crystal removing structure is arranged on the right side of the pretreatment structure, and the detection structure is arranged on the right side of the crystal removing structure. The conveying belt moving structure comprises a bottom box, a position adjusting assembly is fixed to the bottom box and comprises a first storage box, a first motor box is fixed to the first storage box, a motor in the first motor box drives a gear to rotate, and the gear rotates to drive a first supporting plate on a rack to move. The removing device for the lead sulfate crystal substances of the mining lead-acid storage battery has the advantages that the lead-acid storage battery is rotated and cleaned in an auxiliary manner, the lead-acid storage battery is limited and fixed, the lead sulfate crystal substances are removed, the lead-acid storage battery is automatically monitored, and the unqualified lead-acid storage battery is removed.

The invention discloses a high-power lead-acid battery electrolyte and a preparation method thereof, and belongs to the technical field of electrochemistry. The lead-acid battery electrolyte comprises the following raw materials: 40 to 60 parts of sulfuric acid, 40 to 60 parts of deionized water, 5 to 10 parts of phosphoric acid, 0.5 to 2 parts of fumed silica, 0.5 to 1 part of lithium carbonate, 0.2 to 1 part of anhydrous sodium sulfate, 0.2 to 0.5 part of lithium iodide, 0.1 to 0.5 part of stannous mono-sulphate, 0.1 to 0.3 part of isopropanol, 0.1 to 0.2 part of acrylamide, 0.02 to 0.1 part of an auxiliary agent and 0.005 to 0.01 part of a defoaming agent. The additive containing the hindered phenol structure, the benzimidazole structure and the hydroxyl group has good compatibility with other raw materials, and can be uniformly dispersed and stably exist in the electrolyte, so that stable and effective effects of oxidation resistance, corrosion resistance and sediment removal are achieved. Therefore, by adding the additive into the electrolyte, the charge-discharge performance of the storage battery can be improved, and the service life of the storage battery can be prolonged.

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.