36results about How to "Increased energy-to-weight ratio" patented technology

The present invention discloses a high specific energy lead-acid battery production method, which belongs to the technical field of lead-acid battery production. By improving of battery production processes, reduction of plate grid weight, improvement of the degree of oxidation of lead powder, and use of special paste mixing equipment, the conventional paste mixing process is appropriately adjusted, the paste coating weight is increased, polar plate curing and drying processes are improved and optimized, formation way is improved, and a good quality process controllable high specific energy lead-acid battery meeting the battery performance requirements can be produced. The high specific energy lead-acid battery can significantly improve the specific capacity of the battery, and the battery specific energy can be improved by reducing of the weight of non-active materials.

The invention provides conductive substrate, an electrode, an energy storing device and a preparation method thereof. The conductive substrate comprises a non-conductive substrate layer and a conductive layer which is arranged on the non-conductive substrate layer; the non-conductive substrate layer is plastic or rubber state polymer film layer or composite polymer film layer with the thickness of 0.1 to 100 micrometer, the porosity being 40% to 60%, good flexibility, has self-supporting property and is high temperature and corrosion resistant; the particle diameter of the conductive layer is a nanoscale conductive material layer; the thickness of the conductive layer is 1 to 300 micrometers. The conductive substrate comprises a flexible non-conductive substrate layer and the conductive layer and a purpose of improving the electrode flexibility is achieved by increasing the substrate flexibility due to covering of the conductive layer on the flexible non-conductive substrate layer.

The invention discloses a method for recovering lead plaster of the negative pole of a disused lead acid storage battery and application of the recovered lead plaster. A preparation method of superfine lead powder comprises the following steps: firstly, a disused battery is fully charged; secondly, the lead plaster of the negative pole is separated from the lead acid storage battery; thirdly, the main substance of the lead plaster of the negative pole is changed into a lead raw material mainly composed of PbO and Pb via high temperature and humidity solidification; and lastly, dry grinding or crumbling of the lead raw material is carried out under the condition of oxygen, or wet treatment is carried out by using organic salt and organic acid to obtain superfine lead powder. The recovery method disclosed by the invention is low in cost, simple and convenient in process, high in recovery rate of lead, low in energy consumption and easy to achieve industrialization, and causes minor pollution to the environment during recovering the lead. The method directly prepares superfine lead powder which can be directly used to produce storage batteries. The superfine PbO powder prepared by the method has good performance, is high in technology added value, and can obtain a battery pole plate which has high electrochemistry capacity and a long charging / discharge service life.

A method and its equipment to manufacture the polar plate grid of lead-acid battery use the combined process of physical vapor phase deposition-electrodeposition-heat-treatment to produce the continuous and uniform lead-cloth grid with the equipment that can produce nonmetallic material in belt shape continuously. The said physical vapor phase deposition process includes one or two combination ofsputtering plating, evapouration plating and ion plating. The single metal lead or tin or lead and tin alloy is plated on the nonmetallic belt material.

The invention discloses a process for making lead fabric battery using new pattern lead fabric material as pole plate slab lattice, wherein a physical vapour deposition or electrically-conducting paint coating - electrodeposition -heat treatment combination process is applied, in the production, the lead fabric material may be used in various forms, e.g. double pole plates, the two ends of the lead fabric are coated with positive, negative electrode lead grease, the central portion is coated with macromolecular insulation acid resisting paint, the bipolar pole plates' positive and negative electrodes are placed horizontally in an overlapping mode, a glass fiber baffle plate is arranged in the center. The structural pattern of the invention can take various types, the advantages of the invention are small internal impedance and great current charging and discharging.

The invention discloses a hybrid current collector used for lead storage batteries, which is characterized in that the hybrid current collector comprises at least one conducting framework and a shaping framework, the conducting framework is molded in a hybrid form, the shaping framework is manufactured by lightweight hard materials, and the hybrid current collector is a grid plate with hollow grids or a plate-shaped current collector without grids. The hybrid process of the conducting framework and the shaping framework includes injection molding and joggle fixing molding, wherein the injection molding utilizes thermal plastic and cold extrusion or uses cement concrete, the joggle fixing comprises steps of utilizing the lightweight hard material to manufacture a substrate module which is used as the shaping framework and then joggling and fixing the shaping framework with the conducting framework which is designed as a coupling module. The conducting framework of the current collector can extend to form an integrated lead electrode or is electrically fixedly connected with a split lead electrode. The polar plate manufactured by utilizing the current collector is light in weight, high in specific energy, simple in manufacture and low in material cost.

The invention discloses a lead-acid storage battery with a square winding structure and a manufacturing method of the lead-acid storage battery. Flexible plate grids obtained by expanding, punching, continuous casting or other forms are respectively coated with positive electrode and negative electrode active substances to form a positive electrode plate and a negative electrode plate; the positive electrode plate, a separation board and the negative electrode plate are wound on the same core plate to form a battery cell; the battery cell is arranged in a battery jar with circular arc transition at two ends and a straight line in the middle; after the battery cell is dried by a special technology, a series of physical and electrochemical processes of cast welding, sealing, acid filling, forming and the like are finished, and finally, the lead-acid storage battery which can be repeatedly charged and discharged for use is obtained. The lead-acid storage battery disclosed by the invention combines the advantages of a cylindrical winding battery and a traditional square flat plate battery, has the characteristics of low internal resistance, high specific power and long service life of the winding battery as well as high volume utilization rate and wide application range of the traditional battery, and has broad application prospect; the limit that the cylindrical winding battery is only suitable for being produced into medium-small capacity batteries is broken through.

The invention relates to a lead-acid storage battery, in particular to a bipolar-plate type unit high-energy lead-acid battery, a high-voltage battery pack formed from the same and a package method of the high-voltage battery pack. The unit high-energy lead-acid battery comprises an electronic conductor bipolar plate, wherein a positive active material layer and a negative active material layer are respectively coated on two surfaces of the electronic conductor bipolar plate and are the same active material prepared by taking lead sulfate as main, and a batter partition plate is laid on the active material layer on one surface. After the unit battery disclosed by the invention is adopted to package batteries stacked in series, the battery with high voltage, low internal resistance and long cycle lifetime is easy to achieve, meanwhile, the production process of the battery is simplified, and the production cost is reduced.

The invention relates to a lead-acid storage battery pole plate and a preparation method thereof, and belongs to the technical field of lead-acid storage batteries. The lead-acid storage battery pole plate comprises a grid and an active material layer coated on the grid, wherein the grid comprises a substrate; mesh openings are formed in the surface of the substrate; a plate lug is connected with the edge of the substrate; a non-conductor frame used for limiting the active material layer on the substrate is arranged at the edge of the substrate; and the non-conductor frame protrudes out of the substrate. The invention also discloses a preparation method of the lead-acid storage battery pole plate, and comprises the steps of lead alloy smelting, grid forming, grid pasting, pole plate solidifying and pole plate drying, wherein the grid forming process comprises the steps of manufacturing the grid through a cold pressing mode and then assembling the grid and the non-conductor frame. As the substrate and the non-conductor frame are organically combined, more active materials can be coated on the thin and light substrate, and a thick and light plane pole plate with high capacity is obtained.

The invention discloses a welding-free storage battery busbar structure and a manufacturing process thereof and relates to the field of lead-acid storage batteries. The welding-free storage battery busbar structure comprises a pole group and a cold splicing piece. The cold splicing piece is made of metal with the resistivity higher than that of lead; a tab of the pole group is provided with a through hole or an open groove; and the cold splicing piece is embedded into the through hole of the tab or is extruded and embedded to the groove of the tab to form a busbar. Or, the cold splicing pieceis provided with a through hole or an open groove; the tab is embedded into the through hole of the cold splicing piece or extruded and embedded to the groove of the tab to form the busbar; and the busbar is sealed by glue after being formed. According to the invention, the high-conductivity metal of which the resistivity is higher than that of lead is taken as the busbar of the lead-acid storagebattery instead of lead and lead-based alloy, so that gravimetric specific energy of the lead-acid storage battery is improved, and the material cost of the lead-acid storage battery is reduced; and amechanical extrusion and embedding connection mode is adopted to replace a hot melting manufacturing mode, so that clean production is achieved, and lead pollution in the traditional production process is avoided.

The invention disclosed a packaging method for cylinder-type lithium-ion battery, which is implemented by the following steps: first using aluminum-plastic packaging bags as battery casing material, using punch shell mold to make two same columnar semicircle out of the central flank, then folding them to be cylinder, finally loading the battery group into the above shell, and completing battery package through double edge closure, injecting fluid, air bleed, single edge closure, and chemical synthesis. The invention saves roller shafts sealing and laser welding processes, and the corresponding equipment.

The present invention discloses a container formation lead-acid battery technology, comprising the following process steps: firstly manufacturing a lead powder and a grid, mixing lead powder, dilute sulfuric acid and an additive, coating the mixture on the grid surface, drying and solidifying to form a positive pole plate and a negative pole plate. The positive pole plate and the negative pole plate are reacted with dilute sulphuric acid under the action of direct current to generate active substance by a redox reaction. The positive electrode plate and the negative plate used for battery assembly are formed by washing and drying. Finally based on an interval arrangement principle, a partition plate is arranged between the positive electrode plate and the negative plate to prepare into an electrode crowd which is then filled into a battery casing. The grid is manufactured by using continuous casting and rolling. The container formation lead-acid battery technology can reduce gravimetric specific energy thereof under the premise of reducing the total weight of the battery, and improve the utilization rate of active materials. The increase of amount of electrolyte helps to increase the thermal capacity of the battery. The disadvantage of battery capacity limited by the electrolyte is prevented, and the probability of thermal runaway is also effectively reduced, so that the product is suitable for southern hot regions.

The invention discloses a lead-acid storage battery positive electrode plate for an electric automobile. The lead-acid storage battery positive electrode plate for the electric automobile consists of a positive electrode active material and a positive electrode gate. The positive electrode active material comprises the following components in mass proportion: 100 of lead powder, 5-13 of tribasic lead sulfate, 0.5-1.5 of tin trioxide, 0.5-6 of super electric-conducting graphite, 0.5-2 of teflon emulsion, 0.5-2 of electric-conducting fiber and 10-20 of dilute sulphuric acid; the positive plate gate is a super calcium multi-element alloy material, and comprises the following components in percentage by weight: 0.11-0.18% of calcium, 0.06-0.2% of selenium soil, 0.03-0.06% of Bi, 1.4-1.8% of tin and the balance being lead. According to the super calcium alloy battery for an electric automobile, assembled by the positive electrode plate provided by the invention, the high-current starting capability and low-temperature discharge capacity are improved and deep cycle service life is prolonged.

The invention discloses a method for manufacturing a high-specific-energy lead-acid battery, which belongs to the technical field of lead-acid battery manufacturing. By improving the battery manufacturing process, reducing the weight of the grid, increasing the oxidation degree of lead powder, using special paste equipment, making appropriate adjustments to the past paste process, increasing the paste weight, improving and optimizing the plate curing and drying process, Improve the formation method to achieve high specific energy lead-acid batteries with good production quality, process control and battery performance requirements. This kind of battery can significantly increase the specific capacity of the battery, and also increase the specific energy of the battery by reducing the weight of inactive materials.

The invention relates to a novel light-weight lead-acid power battery grid; the novel light-weight lead-acid power battery grid is characterized in that the grid is composed of tab 1, a frame 2, transverse ribs 3 and vertical ribs 4, wherein the tab 1 is positioned at the edge of one side of the frame 2; and the vertical ribs 4 and the transverse ribs 3 are vertically interlaced and combined to form a longitudinal rectangular mesh, wherein the distance between the transverse ribs 3 is 1.5-2.0 times of the distance between the vertical ribs 4, and the number of the vertical ribs 4 is 2-3 timesthat of a traditional grid. The grid can be used for preparing a power lead-acid battery, a lead-carbon battery and the like with high rate, high energy density and long cycle life and capability of improving current convergence, so that the current transmission distance is shorter, the ohmic voltage drop on a polar plate is reduced, the grid is safer, and the grid is suitable for popularization and application.

The invention discloses a method for recovering lead plaster of the negative pole of a disused lead acid storage battery and application of the recovered lead plaster. A preparation method of superfine lead powder comprises the following steps: firstly, a disused battery is fully charged; secondly, the lead plaster of the negative pole is separated from the lead acid storage battery; thirdly, the main substance of the lead plaster of the negative pole is changed into a lead raw material mainly composed of PbO and Pb via high temperature and humidity solidification; and lastly, dry grinding or crumbling of the lead raw material is carried out under the condition of oxygen, or wet treatment is carried out by using organic salt and organic acid to obtain superfine lead powder. The recovery method disclosed by the invention is low in cost, simple and convenient in process, high in recovery rate of lead, low in energy consumption and easy to achieve industrialization, and causes minor pollution to the environment during recovering the lead. The method directly prepares superfine lead powder which can be directly used to produce storage batteries. The superfine PbO powder prepared by the method has good performance, is high in technology added value, and can obtain a battery pole plate which has high electrochemistry capacity and a long charging / discharge service life.

The invention relates to a lead-acid storage battery, in particular to a bipolar-plate type unit high-energy lead-acid battery, a high-voltage battery pack formed from the same and a package method of the high-voltage battery pack. The unit high-energy lead-acid battery comprises an electronic conductor bipolar plate, wherein a positive active material layer and a negative active material layer are respectively coated on two surfaces of the electronic conductor bipolar plate and are the same active material prepared by taking lead sulfate as main, and a batter partition plate is laid on the active material layer on one surface. After the unit battery disclosed by the invention is adopted to package batteries stacked in series, the battery with high voltage, low internal resistance and long cycle lifetime is easy to achieve, meanwhile, the production process of the battery is simplified, and the production cost is reduced.

A method and its equipment to manufacture the polar plate grid of lead-acid battery use the combined process of physical vapor phase deposition-electrodeposition-heat-treatment to produce the continuous and uniform lead-cloth grid with the equipment that can produce nonmetallic material in belt shape continuously. The said physical vapor phase deposition process includes one or two combination ofsputtering plating, evapouration plating and ion plating. The single metal lead or tin or lead and tin alloy is plated on the nonmetallic belt material.

The invention discloses a porous graphite electrode for lead-acid battery, wherein an electrode plate is made of a porous graphite material; the electrode plate is in a tubular graphite structure formed by connecting a plurality of graphite tubes into a whole, active substances are filled in the graphite tubes, the wall thickness of each graphite tube is 0.4-1.0 mm, and the porosity of porous graphite is 40-60%. The electrode is used for manufacturing the lead-acid battery, can guarantee that the active substances do not fall off, and increase the contact area with the electrode plate, and then can be used for improving the conductivity and service life of the battery; and meanwhile, graphite replacing a lead alloy is used as the electrode plate, therefore, the lead pollution can be greatly reduced, the weight of the battery can be reduced, the gravimetric specific energy of the battery can be improved, and the production cost is reduced.

The invention aims at providing a novel valve-controlled sealed maintenance-free lead-acid storage battery case which achieves the purposes that the volume and the weight of the original product are reduced, the weight-ratio energy and the volume-ratio energy are increased, the free maintenance of a battery is finally realized and the problems of pollution to the environment due to overflowing of electrolyte from the battery and the like are avoided. The novel valve-controlled sealed maintenance-free lead-acid storage battery case comprises a case body and a cover body and is characterized by comprising two parts, namely, the case body and the cover body, wherein the case body is internally provided with a case body bottom groove; and the two ends of the case body are respectively provided with a lifting through hole. The novel valve-controlled sealed maintenance-free lead-acid storage battery case provided by the invention has the beneficial effects that the novel valve-controlled sealed maintenance-free lead-acid storage battery case is 2*3-structure valve-controlled sealed lead-acid storage battery case for dry charge (or wet charge); for the battery, a front terminal can be provided with outwards-extending electrode device, so that the phenomenon that connecting lines are frequently disassembled to cause damage of the terminal can be effectively prevented; and the battery can be delivered in the form of dry charge, so that the transportation and the storage are convenient.

A high-energy colloidal lead cloth battery and a manufacturing method thereof. Positive and negative plates and AGM diaphragms are assembled in a battery tank, the positive and negative grids are made of lead cloth or foamed lead, and the electrolyte filled in the battery tank is a colloidal electrolyte. , The colloidal electrolyte is composed of fumed silica, stabilizer, phosphoric acid, active additives, dilute sulfuric acid, and pure water. It has good thixotropy and rheology without delamination. The colloidal lead-cloth battery of the invention has high specific energy, long service life, not easy to lose water, good reliability, can be placed in any direction, no electrolyte escape, environmental protection and good safety performance.

The invention discloses a composite grid group, a lead-acid storage battery and a manufacturing method of the lead-acid storage battery, belongs to the technical field of storage batteries, and solves the problems that in the prior art, the gravimetric specific energy of the lead-acid storage battery is relatively low, and the connection structure between grids is complicated. The composite grid group comprises a plurality of insulating frames which are arranged in a laminated manner, a plurality of lead wires and a plurality of insulating wires, wherein the lead wire is in the shape of a continuous snake-shaped line and comprises transverse sections and bent sections which are alternately arranged and connected with each other, the transverse sections transversely penetrate through the insulating frames, the bent sections are located on the side surfaces of the insulating frames, and the insulating wires longitudinally penetrate through the insulating frames. The lead-acid storage battery comprises the composite grid group. The composite grid group, the lead-acid storage battery and the manufacturing method of the lead-acid storage battery can be used for supplying power to electric equipment.

The invention discloses a composite current collector of a lead-acid storage battery, the composite current collector comprises a lead sheath or a lead alloy sheath and a carrier, the lead sheath or the lead alloy sheath covers the surface of the carrier or is laminated with the carrier to form a laminated layer, in the laminated layer, one surface of the lead sheath or the lead alloy sheath is alower surface, and the other surface of the lead sheath or the lead alloy sheath, namely a lower surface, directly contacts or / and connects with the surface of the covered carrier body or indirectly contacting or / and connects with the surface of the covered carrier body; optionally, the composite current collector of the lead-acid storage battery can further comprise a light electric conductor, and the light electric conductor is located on one side of the lower surface of the lead sheath or the lead alloy sheath and is in electric conduction connection with the lead sheath or the lead alloy sheath or the lower surface of the lead sheath or the lead alloy sheath. The invention also discloses a lead-acid storage battery comprising the composite current collector. The composite current collector of the lead-acid storage battery disclosed by the invention is relatively low in weight and relatively low in resistance; the lead-acid storage battery disclosed by the invention is relatively high in gravimetric specific energy, relatively small in internal resistance and the like.

The present invention discloses a container formation lead-acid battery technology, comprising the following process steps: firstly manufacturing a lead powder and a grid, mixing lead powder, dilute sulfuric acid and an additive, coating the mixture on the grid surface, drying and solidifying to form a positive pole plate and a negative pole plate. The positive pole plate and the negative pole plate are reacted with dilute sulphuric acid under the action of direct current to generate active substance by a redox reaction. The positive electrode plate and the negative plate used for battery assembly are formed by washing and drying. Finally based on an interval arrangement principle, a partition plate is arranged between the positive electrode plate and the negative plate to prepare into an electrode crowd which is then filled into a battery casing. The grid is manufactured by using continuous casting and rolling. The container formation lead-acid battery technology can reduce gravimetric specific energy thereof under the premise of reducing the total weight of the battery, and improve the utilization rate of active materials. The increase of amount of electrolyte helps to increase the thermal capacity of the battery. The disadvantage of battery capacity limited by the electrolyte is prevented, and the probability of thermal runaway is also effectively reduced, so that the product is suitable for southern hot regions.

The invention discloses a lead-acid storage battery and a manufacturing method thereof, belongs to the technical field of storage batteries, and solves the problems of low gravimetric specific energy and complicated plate group structure and manufacturing process of the lead-acid storage battery in the prior art. The storage battery comprises a positive electrode insulating frame, a positive electrode lead wire, a negative electrode insulating frame and a negative electrode lead wire, the positive electrode lead wire is in the shape of a continuous snake-shaped line, the transverse section of the positive electrode lead wire transversely penetrates through the positive electrode insulating frame, and the bent section of the positive electrode lead wire is located on the side face of the positive electrode insulating frame; the negative electrode lead wire is in a continuous snake-shaped line shape, the transverse section of the negative electrode lead wire transversely penetrates through the negative electrode insulating frame, and the bent section of the negative electrode lead wire is positioned on the side surface of the negative electrode insulating frame; and the positive grid group and the negative grid group are oppositely inserted. The lead-acid storage battery and the manufacturing method thereof can be used for supplying power to electric equipment.

The invention belongs to the field of a proton exchange membrane fuel cell, in particular relates to a passive miniature methanol fuel cell and a preparation method thereof. The miniature methanol fuel cell comprises an anode liquid storage cavity, an anode flow field plate, an insulation gasket, a membrane electrode and a cathode flow field plate, wherein the anode liquid storage cavity, the anode flow field plate and the cathode flow field plate are made of an magnesium alloy material, and an aluminum oxide micro-arc oxidation porous ceramic membrane is grown on the surface of the magnesium alloy material by using a micro-arc oxidation technology. The battery is light in weight, and the gravimetric specific energy of the battery is high; and since the micro-arc oxidation porous ceramic membrane is prepared on the surface of the magnesium alloy, the corrosion resistance of the magnesium alloy is improved.

The invention provides a lead-acid storage battery, and belongs to the technical field of storage batteries. The lead-acid storage battery comprises a shell, a positive plate, a negative plate, a positive pole connected with the positive plate and a negative pole connected with the negative plate; each of the positive plate and the negative plate comprises a frame main body, supporting ribs, a conductive wire and lead plaster coating the frame main body. According to the lead-acid storage battery provided by the invention, the conductive wire is wound on the frame main body, the conductive wire is supported by the frame main body, the metal consumption of the conductive wire and the loss of a lead raw material are greatly reduced, and the frame main body and the supporting ribs are both made of an acid-corrosion-resistant material, so that the service life can be prolonged; a plurality of lead coil groups are sequentially arranged in the frame main body at intervals, so that the contact area of the conductive wire and acid liquor is increased, a grid can be made to be lighter and thinner, the utilization rate of active substances is improved, the capacity of the battery with the same size as those in the prior art can be made to be higher, or the mass of the active substances of the battery with the same capacity as those in the prior art is small, and the gravimetric specific energy of the battery is improved.

The present invention is a lead-acid storage battery with a square winding structure and its manufacturing method. The positive and negative active materials are respectively coated on the flexible grid obtained by expansion, punching, continuous casting or other forms to make positive and negative plates. Plate, separator, and negative plate are wound on the same core plate to form a battery core, and the battery core is placed in a battery tank with a circular arc transition at both ends and a straight line in the middle. After drying by a special process, casting welding, sealing, and filling are completed. A series of physical and electrochemical processes such as acid and chemical formation, and finally, it becomes a lead-acid battery that can be used repeatedly for charging and discharging. The invention combines the advantages of cylindrical winding batteries and traditional square flat batteries. It not only has the characteristics of low internal resistance, high specific power and long life of winding batteries, but also has the characteristics of high volume utilization rate and wide application range of traditional batteries. It breaks through It overcomes the limitation that the cylindrical winding battery is only suitable for small and medium capacity batteries, and has broad application prospects.