361results about How to "Shorten the formation time" patented technology

This invention relates to the plus plate lead paste of lead-acid battery comprising (by weight percentages based on lead powder): lead powder 100%, 1.4g/cm3 sulfuric acid 8-12%, deionized water 9-11%, lead dioxide 3-4.2%, short fiber 0.05-0.06%, carbon fiber 0.10-0.15%, anisotropic graphite 0.2-0.4% and bismuth oxide 0.05-0.11%. In this invention, on the based on certain water and acid content in the active substance, additional positive pole active substances are added such as anisotropic graphite and bismuth oxide or the like. The changed components improve the primary battery volume and the ratio of weight/energy with prolonging battery service life.

The invention discloses a rapid forming method of a lithium ion power battery, which is characterized by comprising the following steps of: 1. precharging; 2. settling and aging; and 3. charging by adopting an intermittent depolarized single-stage impulse charging mode until charge is finished. Because the forming process of the invention adopts the intermittent depolarized single-stage impulse charging mode, the impedance of an SEI (Solid Electrolyte Interface) membrane is lowered, thereby reducing the internal resistance of the battery and improving the rate discharge performance of the lithium ion power battery. Because the forming process of the invention adopts an impulse current with a lower frequency, the battery can be naturally depolarized within the impulse-off time, thereby lowering the polarizing effect, stabilizing the charging voltage, improving the charging efficiency, simultaneously avoiding the high requirement brought by a high frequency impulse current charging mode for equipment, improving the utilization efficiency of electric energy and greatly lowering the production cost. The step of precharge is adopted to facilitate the formation of the stable SEI membrane, thereby improving the performance of the battery.

The invention discloses a brewing process of a soybean paste, belonging to the field of brewing of fermented products. The process comprises the following steps of: raw material preparation; material steaming and yeast preparation; fermentation; and cooking. Through adding saline fermentation broth at the earlier stage of fermentation of the soybean paste and improving other processes for brewing the soybean paste, the fermentation period is shortened, a bean are kept in an intact shape, and the soybean paste is better in color and flavor. The invention also discloses a making process of the saline fermentation broth.

The invention discloses a lithium ion battery formation method. A negative electrode active substance of a lithium ion battery comprises a lithium-rich manganese-based positive electrode material. Theformation method includes at least three times of charge-discharge cycles; in the two former charge-discharge cycles, charge cut-off voltage is lower than 4.4V, discharge current is higher than charge current, and the second-time charge current is higher than the first-time charge current; in the last charge-discharge cycle, the charge cut-off voltage is not lower than 4.4V, and the charge current is not lower than the second-time charge current. By the step voltage charge-discharge formation method, a stable SEI film can be formed on the surface of a negative electrode in repeated low-voltage charge-discharge processes while a stable CEI film is formed on the surface of a positive electrode, side reaction between electrolyte and an electrode piece can be inhibited, gas generation is reduced, and accordingly the problem of battery swelling is solved. In addition, by the method, structural stability and capacity exertion of the lithium-rich manganese-based positive electrode material under a high voltage can be improved, and the cycle performance and the energy density of the battery are improved as well.

The invention discloses a method for quickly forming a soft power lithium-ion cell. The method comprises the following steps: (S1) supplying a heat source for heating a cell by using a heating plate;(S2) driving a pressurizing plate to pressurize the cell by using a servo motor; (S3) performing gradient charging on the cell; and (S4) charging the cell till reaching high charge state. According tothe invention, a stable, compact and uniform SEI film is formed on a cathode surface, the performance of the lithium-ion cell is greatly promoted, the early failure of the lithium-ion cell in the circulating process is avoided, the yield of the cell is increased, the cell quality is optimized, the forming time of the cell is shortened, the large-scale production of the cell is realized and the method has wide application prospect.

As shown in Figs. 4(a)-4(e), a plurality of semiconductor devices (142) and passive devices (144) are fixed to a base (140), then an insulating resin film (123) with conductive film composed of a conductive film (120) and an insulating resin film (122) is pressed against the base (140) so that the semiconductor devices (142) and the passive devices (144) are pushed into the insulating resin film (122), and the base (140) and the insulating resin film (123) are contact-bonded under vacuum or a reduced pressure. Following that, the base (140) is separated from the insulating resin film (122), and a via (121) is formed and the conductive film (120) is patterned. Consequently, there can be obtained a structure (125) wherein one side of each semiconductor device (142) and passive device (144) is sealed with the insulating resin film (122) while the other side of each device is exposed.

The invention discloses a normal-pressure preparation method of a high specific surface area intensive-hydrophobicity graphene oxide/silica composite aerogel. The method comprises the following steps:by taking tetraethoxysilane as a precursor, adding a graphene oxide turbid liquid under an acidic condition, adding an ethanol liquid of aminopropyl triethoxy silane and graphene oxide hydrosol, continuously dropping the ethanol liquid of aminopropyl triethoxy silane, forming a graphene oxide/silica composite alcogel under an ultrasonic condition, and performing aging, maturing, solvent replacement, surface modification, and normal-pressure drying, so as to obtain the composite aerogel. By adopting the method, a silane coupling agent, namely the aminopropyl triethoxy silane, is adopted to replace a conventional alkali catalyst, and the aminopropyl triethoxy silane is used as a silicon source and is easy in chemical bond combination with an acidic group carboxyl in the graphene oxide because of an alkali group amino in the aminopropyl triethoxy silane, so that the combination force can be improved, in addition, the formation time of the gel is greatly shortened, and the graphene oxide/silica composite aerogel which is high in specific surface area, intensive in hydrophobicity and low in heat conduction coefficient can be prepared.

A process for preparing zinc oxide nanotubes by hydrothermal decomposing and growth includes such steps as dripping concentrated ammonia water in the solution of zinc chloride while stirring, regulating pH=9-11, sealing, ultrasonic treating, putting a clean and electrically conductive substrate in the solution, sealing again, laying a side at 80-98 deg.C, natural cooling, ageing, taking the substrate, flushing with deionized water, and natural drying to obtain the zinc oxide nanotubes on the surface of substrate.

A single node and side shoot cutting seedling raising method adopting a plug tray and applied to tea trees comprises the following steps: greenhouse preparation, substrate preparation, loading of the substrate to the plug tray, cutting selection, shoot cutting, processing of cutting shoots with rooting powder, cutting and seedling management. Moisture of the substrate and moisture of the cutting shoots are kept in an intermittent spraying manner, the survival rate of the cutting shoots is increased, and the callus forming time and rooting time are shortened; seedlings develop fast after rooting of the cutting shoots provided with the side shoots, and the seedling raising period is shortened; seedling raising through the light substrate and the plug tray is adopted, the root systems of the tea tree seedlings are in a net shape and cluster with the substrate, so that the seedlings are not prone to damage during pulling up, transportation and transplanting, the transplanting survival rate is increased, and the problems of long seedling raising period of single node cutting in an open field by adopting a double-layer film, difficult moisture management of single node and side shoot cutting and the like are solved.

The invention discloses a deep depolarization charging method for a lead-acid storage battery. The method comprises a plurality of continuous charging processes and discharging processes. In a charging and discharging cycle, the discharging process after charging comprises a plurality of discharge pulses and a period of standing time. In the method, the shortcomings of the prior art are analyzed in detail based on a physicochemical mechanism and an electrochemical mechanism of the charging process of the storage battery, and a 'deep depolarization charging technical' scheme can be obtained by a great number of tests under the guidance of Mas theory. Experiments show that a water tank or water cooling is not required by formation in the lead-acid storage battery, formation time can be reduced by 50 percent, production efficiency can be improved by 80 percent, additional charging time can be shortened by 85 percent, the temperature of electrolyte is kept below 60 DEG C, environment friendliness, energy saving and high efficiency can be really achieved by the technology; the technology is applied to the formation and additional charging of the lead-acid storage battery; and the lead-acid storage battery can be additionally charged to achieve the capacity of 60 percent only for 60 minutes.

The positive pole lead paste formula consists of lead powder 60-80 wt%, PbO2 5-20 wt%, dry short fiber 0.1-0.15 wt%, water 10-15 wt% and sulfuric acid 4-10 wt%. The addition of PbO2 to form skeleton of positive electrode before reduction can reduce through voltage, raise the current forming efficiency, shorten forming time and save cost. Using recovered PbO2 as additive can protect environment, and the addition of dry short fiber can increase the binding force between the active matters to ensure the enough strength of the positive pole.

The present invention relates to an imaging device and an imaging method. The object of the present invention is to form, quickly and at low cost, a high-quality image on a medium formed with a curved surface. In order to achieve this object, the imaging device is equipped with: an ink-jet head (2); a pre-curing ultraviolet irradiation device (3); a head unit (4) in which is installed the ink-jet head (2) and the pre-curing ultraviolet irradiation device (3); a medium holding unit (5) that holds a medium (M); a transfer sheet unit holding unit (9) that holds a transfer sheet unit (8), in which a transfer sheet (6) is mounted to a transfer sheet holder (7); an elastic pad unit (10); a final curing ultraviolet irradiation device (11); a cleaning unit (12); and a control unit (13). The ink-jet head (2) applies ink to the transfer sheet (6) and the pad unit (10) pushes the transfer sheet (6) against the medium (M), thus providing a pressure transfer of the ink applied to the transfer sheet (6) to the medium (M).

The invention discloses a method for preparing an adsorption-coagulation-type polysilicate flocculating agent, which is characterized by comprising the following steps: firstly, adding 4 to 8 weight parts of sodium silicate to 55 to 65 weight parts of water to prepare solution of sodium silicate; secondly, adding the solution of the sodium silicate to 18 to 24 weight parts of 98 percent sulfuric acid or 37 percent hydrochloric acid with stirring to obtain the solution of polysilicic acid with a pH value of 3.5 to 6.5; thirdly, adding 12 to 18 weight parts of inorganic salt and 0.6 to 1.5 weight parts of active carbon to the solution of polysilicic acid at the same time to obtain a mixture; and finally, stirring, standing and curing the mixture to obtain the adsorption-coagulation-type polysilicate flocculating agent. The adsorption-coagulation-type polysilicate flocculating agent prepared by the invention has the advantages of wide application range, mild use condition, quick response speed, thorough removal effect, strong adsorption capacity, large and close-grained formed alumen ustum, good sedimentation effect, low dosage, obvious volume sweeping effect, remarkable decolouring effect, low cost and the like.

This invention provides an internal formation method for pole plates of lead acid batteries including a first stage of several times of alternate charge and discharge, in which, the charge current is 0.13-0.27C/A, the total charge time is 35-55 hours, the discharge current is 0.13-0.27C/A, the discharge time is 0.5-4.5 hours, the battery is put at rest for 0-3 hours after the first stage then to be discharged according to the capacitance then the second stage of charge is done and the charge current is 0.02C-0.1C/A, the total time is 18-21 hours, in which, C expresses the rating volume of the battery.

The invention provides a semisteel steelmaking carbon content control method and a semisteel steelmaking method. The carbon content control method comprises the following steps: in the process of discharging semisteel into a ladle, adding 1.5-6.0kg/(t semisteel) silicon iron and 1.0-5.0kg/(t semisteel) silicon carbide into the ladle; adding the semisteel into a steelmaking furnace, and lowering an oxygen lance to perform oxygen blowing smelting while adding related slagging materials and alloys according to the blowing smelting requirements; and after the molten steel temperature reaches the requirement, lifting the oxygen lance, wherein the semisteel is molten steel prepared by carrying out vanadium extraction converter or dephosphorization converter blowing on vanadium-containing molten iron, and contains 3.20-3.80 wt% of C and 0.001-0.05 wt% of Si. The method can shorten the early slag formation time, enhance the steelmaking slagging speed, enhance the molten steel temperature, effectively control the steel material consumption in the steelmaking process, and avoid the problem of low utilization ratio of carbon carburizing materials.