35results about How to "Improve deep cycle life" patented technology

The invention discloses a gel battery for an electric vehicle, which comprises a battery container, a battery middle cover arranged on an opening part of the battery container, a battery upper cover plate sealed on the battery middle cover, and a positive plate and a negative plate arranged in the battery container; the outer side of the positive plate is coated with a glass fiber mat clapboard with a U-shaped structure; the outer side of the negative plate is coated with a composite glass fiber clapboard with a U-shaped structure; the composite glass fiber clapboard is formed by compositing two glass fiber layers, the outer layer is an ultra-fine glass fiber substrate, and the inner layer is a glass fiber mat; and the inside of the battery container is also provided with gel electrolyte of which the gel content is 4 to 10 percent. The gel battery can effectively prevent short circuits of positive and negative poles of the battery; the glass fiber mat has good mechanical strength and elasticity, and can ensure the stability of assembly pressure; and the gel battery also has the advantages of big aperture of the fiber mat, easy pouring of gel, even distribution and the like, and has good stability and low cost.

The invention discloses a cathode active material of a lead-acid battery for UPS (Uninterruptible Power Supply), which mainly comprises lead powder, polypropylene fiber, sulfuric acid and deionized water. The cathode active material has the improvement that the lead powder is a mixture of free lead, lead oxide and lead dioxide, and the concentration of the sulfuric acid is 1.25-1.30 g/ml; diantimony trioxide and carbon fiber are added into the material; all components are mixed according to reasonable and standard content ranges to obtain sticky lead plaster, and the apparent density is 4.10-4.45 g/cm<3>. The active material has great bonding force, high utilization ratio and good electrical conductivity; when used for manufacturing lead-acid batteries for UPS, the active material can obviously increase the charge acceptance, the high-current starting discharge performance and the deep cycle life of the batteries.

The invention relates to a maintenance-free lead-acid storage battery with excellent deep cycle life and a production method. Positive electrode lead paste of the maintenance-free lead-acid storage battery comprises the following components of 0.05-0.12% of short fibers, 0.05-0.3% of antimonous oxide additive, 0.4-1.5% of 4BS seeds, 8-14% of pure water, 8-12% of sulfuric acid solution and the balance of lead powder, the negative electrode lead paste consists of 0.2-0.4 % of carbon black, 0.05-0.1 % of short fiber, 0.1-0.3 % of lignin, 0.5-1.0 % of barium sulfate, 8-12 % of pure water, 7-12 % of sulfuric acid solution and the balance of lead powder. The method is advantaged in that the utilization rate of active substances of the battery is not sacrificed, through technical comprehensive application, the charging acceptance capability, the 90% SOC dynamic charging acceptance capability and the micro-hybrid MHT life of the battery are greatly improved, and the deep cycle life in a partial state of charge is improved by 30-50%.

The invention discloses a lead-calcium formation colloid electrolyte which is composed of the following components in percentage by weight: 0.8-5% of gas-phase silicon dioxide, 0.1-2% of sodium silicate, 1-2% of anhydrous sodium sulfate, 0.1-0.5% of stannous sulfate, 0.05-0.5% of sodium carboxymethyl cellulose, 0.02-0.5% of bismuth trioxide, 0.2-3% of phosphoric acid, 28-38% of sulfuric acid and the balance of water. The invention also discloses a preparation method of the lead-calcium formation colloid electrolyte. When being used for preparing a lead-calcium formation battery, the colloid electrolyte improves the early capacity attenuation effect of the lead-calcium formation battery, decelerates the softening shedding of the active substances at the positive pole, and prolongs the deep cycle service life of the battery. The colloid electrolyte disclosed by the invention has the advantages of favorable consistency, favorable colloid thixotropy and favorable colloid stability.

The invention belongs to the technical field of storage batteries, and specifically relates to a lead plaster composition of a positive electrode of an internally formalized storage battery. The lead plaster composition of the positive electrode of the internally formalized storage battery is prepared from the following raw materials in parts by weight: 990-1010 parts of lead powder, 0.5-1.5 parts of fibers, 0.5-1.0 part of phosphoric acid, 1-2 parts of antimonous oxide, 0.7-1.2 parts of zinc oxide, 0.5-1.5 parts of aluminum oxide, 0.5-0.8 part of ammonium hydrogen carbonate, 0.3-0.5 part of cerium hydroxide, 0.7-1.5 parts of tin monoxide, 110-130 parts of water and 80-90 parts of dilute sulphuric acid. The lead plaster composition of the positive electrode is improved, so that capacity attenuation of the internally formalized battery in the early stage is inhibited, and the service life of deep circular discharge of the battery is prolonged.

The invention discloses a positive grid and a preparation method thereof. The positive grid comprises following components in percentage by weight: 1.0 to 2.0% of Sn, 0.04 to 0.09% of Ca, 0.002 to 0.004% of Al, 0.001 to 0.004% of Ag, 0.02 to 0.04% of Na, and the balance being Pb. The positive grid has the advantages that Sn and oxides of Sn and lead are good conductors, the conductivity of contactlayer is improved; Ca can enhance the strength of lead, the compatibility between Ag and lead is good, the corrosion resistant performance of alloy is enhanced; Na can remove harmful substances suchas Cu, Sb, and the like in the alloy; the density of Al is low, Al is distributed on the upper layer of the alloy and protects other main components from being burned; a demoulding agent effectively strengthens the bonding force between the grid and lead paste; the grid defects are eliminated through high temperature age hardening, the grid strength is enhanced, at the same time, the grid grains are refined, the corrosion resistant performance and creep resistant performance are both strengthened, a battery prepared from the positive grid has the advantages of little internal resistance and long deep cycle life, and the capacity fade in the primary period is avoided.

The invention provides a valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles. The valve-controlled sealing lead-acid storage battery is characterized in that ytterbium is added into Pb-Ca-Sn positive electrode grid alloy, the main ingredient of the alloy is Pb, Ca accounts for 0.05%-0.09% of the mass of the grid alloy, Sn accounts for 1.0%-2.0% of the mass of the grid alloy, and Yb accounts for 0.005%-0.05% of the mass of the grid alloy; heat treatment is carried out on a grid for 5-60 minutes under the environment with the temperature of 250-320 DEG C; silicon dioxide is added into an AGM (Absorptive Glass Mass) partitioning plate, or silicon dioxide is added into electrolyte, and the content of the silicon dioxide in the electrolyte is 0.3%-1.5%. The valve-controlled sealing lead-acid storage battery provided by the invention has the advantages that by improvement on the grid alloy of the storage battery and combination of improvement on the alloy of the partitioning plate and structural improvement on a battery jar, not only are the characteristics such as the discharging depth, the discharging frequency and the specific energy of the starting and stopping battery achieved, but also the heating amount of the valve-controlled battery is reduced, the expansion and thermal runaway of the battery are prevented, the corrosion resistance of the grid of the battery is improved and the battery can work under the environment with the temperature of 70 DEG C at highest.

The invention relates to the technical field of a lead-acid battery, particularly relates to a high recharge rate lead-acid battery negative lead paste, a battery negative plate and a high recharge rate lead-acid battery and has properties of good charge acceptance after deep discharge and long cycle life. The lead paste formula includes 100 parts of lead powder, 0.06-0.12 parts of short fiber, 0.5-1.5 parts of ultra-fine barium sulfate, 0.1-0.25 parts of carbon black, 0.05-0.12 parts of indulin, 8-12 parts of sulfuric acid and 9-13 parts of deionized water.

The invention discloses a lead-calcium formation colloid electrolyte which is composed of the following components in percentage by weight: 0.8-5% of gas-phase silicon dioxide, 0.1-2% of sodium silicate, 1-2% of anhydrous sodium sulfate, 0.1-0.5% of stannous sulfate, 0.05-0.5% of sodium carboxymethyl cellulose, 0.02-0.5% of bismuth trioxide, 0.2-3% of phosphoric acid, 28-38% of sulfuric acid and the balance of water. When being used for preparing a lead-calcium formation battery, the colloid electrolyte improves the early capacity attenuation effect of the lead-calcium formation battery, decelerates the softening shedding of the active substances at the positive pole, and prolongs the deep cycle service life of the battery.

The invention belongs to the technical field of lead-acid storage batteries, and particularly relates to a lead-acid storage battery positive electrode lead belt meltallizing process. According to the lead-acid storage battery positive electrode lead strip meltallizing process, a positive grid alloy blank or an alloy strip obtained after pre-rolling is used as a meltallizing matrix, Pb (97.95%-99.86%)-Sn (0.1%-0.5%)-Bi (0.03%-1.5%)-Sb (0.01%-0.05%) alloy is used as a meltallizing material, and a 20-200 [mu] m alloy film layer is meltallizing on the positive grid alloy blank or the pre-rolled positive grid alloy strip. And then the positive grid alloy blank or the positive grid alloy strip attached with the meltallizing alloy film layer is continuously rolled to obtain the positive lead strip with the required thickness. After the positive lead belt prepared by the process is further prepared into a positive grid, the conductivity of the positive grid can be improved, and the deep cycle life of the storage battery can be greatly prolonged after the grid is used for preparing the lead-acid storage battery.

The name of the invention is positive electrode lead paste for a pregnant solution storage battery and a preparation method thereof, which belong to the technical field of lead-acid storage batteries,and mainly solve the problems of insufficient deep discharge cycle capability and short cycle life of the conventional pregnant solution starting type battery. The positive electrode lead paste is mainly characterized by comprising the following components in parts by weight: 70-90 parts of lead powder, 0.05-0.15 part of antimonous oxide, 0.05-0.12 part of high-strength glass fiber, 0.6-1.5 partof 4BS, 9-15 parts of red lead, 0.02-0.06 part of sodium perborate tetrahydrate, 4-8 parts of sulfuric acid and 6-12 parts of pure water. The method has the characteristics that the conductivity of the lead paste is enhanced, the deep cycle life of the battery is prolonged, and the process is simple and easy to control, and is mainly used for prolonging the cycle life of the pregnant solution storage battery and slowing down argillization failure of the positive lead paste in the use process of the pregnant solution storage battery.