30results about How to "Improve charge reception capability" patented technology

The invention provides a matching and sorting method for lead-acid storage batteries and aims to solve the problems in the prior art that the consistency of storage batteries in a storage battery pack is poor and the service life is short. According to the matching and sorting method, sorted storage battery plates are assembled and sorted storage batteries with similar capacities and open-circuit voltage are matched to form one group by adopting a quantitative acid adding manner. The cycle life of the storage battery pack is obviously prolonged, the initial capacity of the storage battery pack is improved by 5%, and the charging receiving capability and the low-temperature performance of the storage battery pack are obviously enhanced. According to the matching and sorting method, the defects that the cycle life of the batteries is short and the consistency of the storage battery pack is poor are overcome; the batteries are suitable for being subjected to charge-discharge cycles under various environment temperatures so that the cycle life of the batteries is prolonged to be more than 500 times.

The battery system is a combined system of a first battery and a second battery. The discharging curve (discharging characteristic) (311) of the first battery has a stable region (B1). The discharging curve (discharging characteristic) (321) of the second battery has a stable region (B2) in the range of voltage lower than the voltage in the stable region (B1) of the first battery and also has an unstable region (A2) in the range of voltage overlapping the voltage in the stable region (B1) of the first battery. The first battery and the second battery are connected in parallel so that, in a discharging process, the discharging state of the entire battery shifts from the stable region (B1) of the first battery to the stable region (B2) of the second battery.

The present invention discloses a deep circulation storage battery container formation diachylon, and is to solve the technical problem of short circulation life of conventional storage batteries. The diachylon of the present invention includes a positive diachylon and a negative diachylon. The positive diachylon includes the components by weight: 0.15-0.42% of carboxymethyl cellulose, 0.25-0.42% of anisotropy graphite, 0.15-0.25% of potassium sulfate, 0.30-0.42% of stannous sulfate, 0.07-0.10% of polyester staple fibers, 6.5-7.5% of dilute sulfuric acid, 9-10% of water, and 80.89-83.58% of a lead powder; and the negative diachylon includes the components by weight: 0.50-0.70% of barium sulfate, 0.20-0.45% of acetylene black, 0.15-0.25% of lignin, 6.00-6.50% of dilute sulfuric acid, 9-10% of water, and 82.10-84.15% of a lead powder.

The invention relates to a graphitized active carbon-based composite additive, a preparation method and applications thereof, wherein the additive is metal-element-containing graphitized active carbonparticles, the carbon particles contain 0.1-50 wt% of carbon with a graphite structure, the specific surface area of the active carbon particles is 100-3000 m<2>/g, the electric conductivity of the active carbon particles is 0.01-100 S/cm, the metal element is one or more than two selected from Sn, Pb, Bi, Ce, In and Zn, and the metal element content in the additive is 0.01-30 wt%. According to the present invention, the lead-carbon battery negative electrode prepared by using the graphitized active carbon as the additive has advantages of high charge and discharge reversibility, high chargeand discharge cycle life and high charge acceptance compared to the conventional lead acid battery negative electrode.

The invention relates to a manufacturing method of a lead-carbon battery used for a pure electric vehicle. The manufacturing method of the lead-carbon battery is characterized in that the manufacturing method comprises the following steps: step 1) orderly removing oil of polyurethane sponge, coarsening, neutralizing, presoaking, activating, and chemically silvering the polyurethane sponge, and finally carrying out electrification and lead plating on the polyurethane sponge to obtain foamed lead material; step 2) cutting and shaping the foamed lead material, respectively coating positive and negative active materials, and adding carbon black into the negative active material to be used as an additive; and step 3), solidifying and drying positive and negative electrode plates, and then assembling the positive and negative electrode plates into a finished battery. The manufacturing method can obviously enhance the performance of the battery.

The invention discloses a high-performance storage battery negative electrode lead paste for renewable energy storage, which comprises the following raw materials by weight: 81-82 parts of lead powder, 8-9.5 parts of 1.325 density dilute sulfuric acid, 7.3-8.5 parts of deionized water; 3-5 parts of sodium carboxymethylcellulose, 0.15-0.25 parts of barium sulfate, 0.12-0.22 parts of sodium lignosulphonate, 0.2-0.35 parts of humic acid, 0.1-0.2 parts of carbon black, 0.07-0.12 parts of short-staple, 0.002-0.005 parts of graphite alkene. The invention also provides a preparation method of the high-performance storage battery negative electrode lead paste for renewable energy storage. According to the invention, the charging receiving capacity of the negative plate is improved by adding graphene, the negative plate conversion environment is improved, and the problem that the negative plate cannot be converted due to the generation of coarse lead sulfate crystal particles on the surface ofthe negative plate is avoided, so that the service life of the battery is prolonged, the development requirement is met, and the negative plate is suitable for large-scale popularization.

The invention belongs to the technical field of manufacturing of power systems for hybrid electric vehicles, and relates to an EFB start-stop battery for a PHEV and a manufacturing process. The EFB start-stop battery comprises an integral tank, a plurality of plate groups mounted in the integral tank and acid liquor in the integral tank, wherein each plate group consists of a positive plate and a negative plate which are alternately stacked. The positive plate adopts a punching net radioactive structure design, ribs of the positive plate are thick at the upper part and thin at the lower part, are radial and are formed in a staggered manner; the ribs of the negative plate grid are in thickness transition design and are formed in a staggered manner, and the area of grids formed by the staggered ribs is small in top and large in bottom; in the same plate group, the positive plate is encapsulated by a high-strength PE partition plate, the positive and negative tabs are connected in parallel in a cast-weld manner, and all the plate groups are connected in series; and the density of the acid liquor is controlled to be 1.275 to 1.285 g/ml. The deep discharge cycle life of the battery is remarkably prolonged, the charge receiving capability of the battery is remarkably improved, the key technical problem of an EFB start-stop battery for a PHEV automobile is solved, and the invention has great technical improvement value and production and popularization value.

The invention discloses storage battery positive electrode lead paste, which is prepared from the following raw materials in parts by weight: 60 to 70 parts of lead powder, 15 to 28 parts of regenerated lead powder, 13 to 19 parts of deionized water, 7 to 12 parts of sulfuric acid solution, 1 to 2 parts of polyester staple fiber, 3 to 6 parts of pure graphene, 1 to 2 parts of stannous sulfate, 2 to 4 parts of polyaniline nanometer solution, 0.5 to 1 part of rare-earth elements, 0.3 to 0.7 part of humic acid, 1 to 2 parts of sodium sulfate, 2 to 4 parts of acetylene black and 1 to 3 parts of dispersing agents. The storage battery positive electrode lead paste can effectively solve the problem of fast attenuation of the circulation service life due to insufficient charging and low discharging volume of an existing lead storage battery for an electric bicycle under the low-temperature condition.

The invention discloses a storage battery low-temperature charging and discharging method based on temperature compensation. The method comprises the following steps that 1) when the environment temperature is lower than -10 DEG C during charging and discharging of a battery, a temperature compensation device is started to raise the temperature; (2) in a low-current 0.05-0.1 CA pre-charging judgment stage, charging reaches 0.3-0.4 H, if the voltage of a single battery cell does not reach 2V, the charger gives an alarm to display abnormality, and charging is ended; 3) segmented charging, concretely, in the first stage, the constant current is 0.21-0.24 CA until the voltage of a battery cell is 2.4 V, or the charging time reaches 1-4H; in the second stage, the constant current is 0.1-0.2 CAuntil the single-cell voltage of the battery is 2.45 V or the charging time reaches 3-8H; in the third stage, the current is limited to be 0.01-0.05 CA, the constant voltage of a single cell of the battery is 2.48 V, the current is lower than 0.01, or charging reaches 1-2H; in the fourth stage, the constant current is 0.07-0.08 CA until the voltage of a single cell of the battery is 2.5 V and thecharging time reaches 0.5 H; and in the fifth stage, the voltage of the cell of the battery is limited to 2.29-2.3 V, and the current is limited to 0.005-0.02 CA for long-time floating charge. According to the storage battery low-temperature charging and discharging method based on temperature compensation, the problem that the service life is shortened due to insufficient charging of the storagebattery at a low temperature can be avoided.

The invention discloses a preparation method of a lead storage battery cathode lead paste containing a superconducting material additive. The lead storage battery cathode lead paste comprises lead powder, water, sulfuric acid, a superconducting material, a short fiber, superfine barium sulfate, acetylene black, lignin and humic acid. The preparation method of the lead storage battery cathode lead paste containing the superconducting material additive disclosed by the invention is simple and convenient, and reasonable in step design; and the preparation method of the lead storage battery cathode lead paste containing the superconducting material additive can be relatively quickly obtained. With the superconducting material as the additive of the lead storage battery cathode lead paste, the superconducting material can be well blended with active substances of the lead paste; the conductivity and the microstructure of a negative plate can be effectively improved; deposition of mass sulfate in the discharge process is hindered; the charge acceptance of a battery is improved; and the preparation method can be widely applicable to various lead-acid storage battery products.

The invention discloses a positive lead plaster containing a superconducting material additive for a lead storage battery. The positive lead plaster comprises the following components in parts by weight: 80-83 parts of lead powder, 10-15 parts of water, 4-10 parts of sulfuric acid, 0.1-0.5 part of a superconducting material and 0.1-0.2 part of a staple fiber. According to the positive lead plaster containing the superconducting material additive for the lead storage battery disclosed by the invention, with the superconducting material as the additive of the positive lead plaster for the lead storage battery, the superconducting material can be well fused with active materials of the lead plaster; the conductivity and the microstructure of a positive plate can be effectively improved; deposition of mass sulfate in a discharge process is hindered; the charge acceptance of the battery is improved; and the positive lead plaster can be widely applicable to various lead-acid storage battery products.

The invention discloses a lead storage battery containing a superconducting material additive. The lead storage battery comprises a positive electrode plate and a negative electrode plate, wherein the positive electrode plate comprises positive electrode lead plaster; and the negative electrode plate comprises negative electrode lead plaster. The lead storage battery containing the superconducting material additive comprises the positive electrode plate and the negative electrode plate, wherein the positive electrode plate comprises the positive electrode lead plaster; and the negative electrode plate comprises the negative electrode lead plaster. A superconducting material is taken as an additive of the positive electrode lead plaster of the lead storage battery, wherein the superconducting material can be well fused with active substances of the lead plaster, can effectively improve the conductivity and microstructure of the positive electrode plate, prevent the deposition of large-area sulfate in a discharging process and improve the charge acceptance of the battery. The superconducting material is taken as an additive of the negative electrode lead plaster of the lead storage battery, wherein the superconducting material can be well fused with active substances of the lead plaster, can effectively improve the conductivity and microstructure of the negative electrode plate, prevent the deposition of large-area sulfate in the discharging process and improve the charge acceptance of the battery. The lead storage battery containing the superconducting material additive can be widely suitable for various lead-acid storage battery products.

The invention discloses a lead-acid storage battery container formation exciting agent, which is formed by mixing of fumed silica, a curing agent and deionized water. The curing agent includes anhydrous sodium sulfate, lithium tetraborate, sodium dodecyl sulfate, fatty alcohol polyoxyethylene ether sodium sulfate, dibutyltin dilaurate, N.N-dihydroxyethyl alkyl amide, polyacrylamide, stannous sulfate, sodium polyacrylate, potassium dihydrogen phosphate, and aluminum oxide. The invention also discloses a lead-acid storage battery container formation system, which consists of a lead-acid storage battery, an ultrasonic material level measurement system, a dynamic feedback direct current servo system, and a turbulence system. The invention also discloses a lead-acid storage battery container formation method, which includes: injecting an electrolyte solution containing the container formation exciting agent into the lead-acid storage battery, carrying out collection, processing and data conversion by the container formation system, and performing adjustment to a rational turbulence state. The container formation technology can reduce the electrochemical internal resistance of the storage battery in the container formation process, and the generated heat can meet the parameters required by a charging process without external forced cooling.