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

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 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 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 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 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 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.