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31results about How to "Strong charge acceptance" patented technology

High-temperature heavy-load negative lead paste for start-stop battery and preparation method of negative lead paste

The invention relates to a high-temperature heavy-load negative lead paste for a start-stop battery and a preparation method of the negative lead paste, and belongs to the technical field of electrochemistry. The high-temperature heavy-load negative lead paste for the start-stop battery is prepared from the following components: dilute sulfuric acid with the density rho of 1.38g / mL, deionized water, a high-performance organic additive Expander 1, a high-performance organic additive Expander 2, a conductive polyester staple fiber, barium sulfate, a carbon material additive Carbon A and lead powder. The invention provides the high-temperature heavy-load negative lead paste for the start-stop battery with long service lifetime and deep discharge cycle performance under the partial state of charge and a preparation method of the negative lead paste. The negative electrode produced by the formula can significantly improve sulfation of the negative electrode under the partial state of charge, reduces the electrochemical polarization phenomenon of the battery in the high-temperature deep circulating charge and discharge processes, and improves the conductivity and the electrochemical property of the negative electrode and the thermodynamic structure stability, so that the high-temperature deep discharge cycle lifetime of the negative electrode under the partial state of charge is prolonged.
Owner:骆驼集团蓄电池研究院有限公司

Lead acid storage battery positive electrode lead paste and preparation method thereof

The invention discloses lead acid storage battery positive electrode lead paste and a preparation method thereof. The lead acid storage battery positive electrode lead paste is prepared from the following ingredients in parts by weight: 70 to 90 parts of lead powder, 0.01 to 0.1 part of adhesive-free carbon fiber, 0.01 to 0.1 part of basalt fiber, 0 to 0.8 part of 4BS seed crystals, 5 to 12 parts of lead tetraoxide, 2 to 8 parts of antimonous oxide, 1 to 5 parts of polyester fiber, 2 to 6 parts of triniobium aluminum, 2 to 7 parts of sulfuric acid, 6 to 8 parts of hydrosulfate,3 to 6 parts of nanometer silicon dioxide, 15 to 20 parts of nucleocapsid acrylic acid elastic emulsion, 0.5 to 1.5 parts of carboxymethyl cellulose, 0.35 to 1.05 parts of chemical-resistant modifying agents and 9 to 13 parts of pure water. The adhesive-free carbon fiber addition technology is used, and the adhesive-free carbon fiber can enhance the adhesion effect of the lead paste; in addition, the lead paste low-acid content technology is used, so that the battery deep circulation service life is greatly prolonged; through the addition of the nucleocapsid acrylic acid elastic emulsion and the nanometer silicon dioxide, the weathering performance of the lead paste is improved; the perfluoroalkyl acrylic acid series additives are introduced to be used as chemical-resistant modifying agents, so that the anti-corrosion performance of the lead paste is greatly improved.
Owner:陈申申

A high-temperature heavy-duty start-stop battery negative lead paste and preparation method thereof

The invention relates to a high-temperature heavy-load negative lead paste for a start-stop battery and a preparation method of the negative lead paste, and belongs to the technical field of electrochemistry. The high-temperature heavy-load negative lead paste for the start-stop battery is prepared from the following components: dilute sulfuric acid with the density rho of 1.38g / mL, deionized water, a high-performance organic additive Expander 1, a high-performance organic additive Expander 2, a conductive polyester staple fiber, barium sulfate, a carbon material additive Carbon A and lead powder. The invention provides the high-temperature heavy-load negative lead paste for the start-stop battery with long service lifetime and deep discharge cycle performance under the partial state of charge and a preparation method of the negative lead paste. The negative electrode produced by the formula can significantly improve sulfation of the negative electrode under the partial state of charge, reduces the electrochemical polarization phenomenon of the battery in the high-temperature deep circulating charge and discharge processes, and improves the conductivity and the electrochemical property of the negative electrode and the thermodynamic structure stability, so that the high-temperature deep discharge cycle lifetime of the negative electrode under the partial state of charge is prolonged.
Owner:湖北弘本能源有限公司

Large-scale cultivation device of seaweed shell filaments in altar

The invention provides an artificial large-scale cultivation device for porphyra haitanensis shell protonemata. The top of an ultrasonic cleaner is connected to a cover plate, wherein the cover plate is provided with a sprayer on the bottom surface. A storage battery and a power interface are connected to the bottom of a side of the ultrasonic cleaner. The ultrasonic cleaner is connected through a return pipe with a water tank which is connected with a pump through a suction pipe. The pump is connected with the ultrasonic cleaner through a flow pipe. A controlling panel with a display screen and a control switch is disposed on the outside surface of the ultrasonic cleaner. A batten is disposed on an upper end of the ultrasonic cleaner internal wall. The ultrasonic cleaner is connected through the batten with a wooden board provided with rectangle grooves evenly distributed on the surface. Ropes provided with evenly distributed shells are evenly distributed on the bottom surface of the wooden board. The bottom surface of the cover plate is provided with the evenly distributed sprayers whose positions are matched with the rectangle grooves on the wooden board surface. The device can clean shells with an excellent cleaning effect, has the storage battery with distinct performance, and possesses good aging and corrosion resistances.
Owner:ZHEJIANG OCEAN UNIV

Nanoscale graphene material dispersion process

PendingCN111785965AGood dispersionMeet the use requirements of positive and negative electrodesCarbon compoundsCell electrodesActive agentConductive materials
The invention discloses a nanoscale graphene material dispersion process, and particularly relates to the technical field of graphene materials. The nanoscale graphene material dispersion process specifically comprises the following steps 1, wetting graphene composite conductive powder with n-butyl alcohol, adding a surfactant SDBS, dispersing, then putting the graphene composite conductive powderinto an ultrasonic cleaner, carrying out ultrasonic oscillation for 1-3 hours, and then taking out the graphene composite conductive powder; 2, taking dimethylformamide with the mass ratio of dimethylformamide to the graphene composite conductive powder being 12, and adding an organic solvent to fully dissolve dimethylformamide; and 3, adding the wetted graphene composite conductive powder into the dissolved dimethylformamide. According to the invention, a good dispersion effect of the graphene-based composite conductive material can be ensured, the use requirements of the positive electrodeand the negative electrode of the graphene composite modified lithium ion battery can be met, a very complete lithium iron phosphate and nickel cobalt lithium manganate ternary-based positive electrode active material conductive network is constructed, and the battery is ensured to have excellent charging acceptance.
Owner:ZHEJIANG XINGHAI ENERGY TECH
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