5results about How to "Improve gas problem" patented technology

The invention discloses a positive electrode lithium supplementing agent, a positive electrode plate, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the positive electrode lithium supplementing agent comprises lithium phytate and a lithium supplementing agent, and the lithium supplementing agent comprises at least one of Li5FeO4, Li6CoO4 and Li2NiO2. The lithium phytate and the lithium supplementing agent are combined to serve as the positive electrode lithium supplementing agent, the lithium phytate and the lithium supplementing agent act together, active oxygen and metal ions released by the lithium supplementing agent are adsorbed, side reactions of the electrolyte are reduced, the electrochemical stability of a system is maintained under high voltage, meanwhile, lithium can be completely released under a high-voltage lithium cobalt oxide system, and the service life of the lithium battery is prolonged. The release amount of a lithium source is effectively increased, the lithium consumption of a negative electrode SEI film forming reaction is fully supplemented, the embedding and separating process of lithium ions in a positive electrode material is promoted, the gas expansion of the secondary battery is improved, and the cycle life of the secondary battery is effectively prolonged.

The invention relates to the technical field of aluminum alloy materials, in particular to an aluminum alloy material, an aluminum alloy conductor wire core and a preparation method and application of the aluminum alloy conductor wire core. The aluminum alloy material comprises, by mass, 0.3%-1.0% of iron (Fe), 0.03%-0.2% of magnesium (Mg), 0.1%-0.8% of manganese (Mn), 0.08%-0.3% of zirconium (Zr), 0.004%-0.03% of boron (B), 0.015%-0.65% of rare earth (RE), 0-0.12% of silicon (Si) and the balance aluminum (Al) and inevitable impurities, the single impurity is not larger than 0.03%, and the sum of the impurities is not larger than 0.1%. Wherein the rare earth (RE) is prepared from the following components in percentage by mass: 0.003 to 0.1 percent of lanthanum (La), 0.004 to 0.15 percent of cerium (Ce) and 0.008 to 0.4 percent of scandium (Sc). The prepared aluminum alloy material has the characteristics of high conductivity, high strength, heat resistance, corrosion resistance and good fracture and impact toughness, is very suitable for being used as a cable conductor, and is particularly applied to places with high requirements on high temperature, vibration, movement, corrosion and the like, such as power cables, electrical connecting wires, drag chain cables applied to metal smelting places and the like.

The invention discloses zero-valent iron shell reinforced microbial immobilized particles as well as preparation and application thereof, and belongs to the technical field of wastewater treatment. According to the preparation method, anaerobic digestion bacteria and a zero-valent iron reinforced material are embedded in porous organic gel formed by cross-linking polymerization of polyvinyl alcohol or sodium alginate in a layered manner, so that stress of an external poor water quality environment and the zero-valent iron material on microorganisms is reduced; in the prepared zero-valent iron shell reinforced microbial immobilized particle, the shell containing the zero-valent iron can protect microorganisms from being disturbed by external adverse environmental conditions, the environmental adaptability of the microorganisms is improved, and meanwhile the biological activity of the microorganisms in the porous inner core is reinforced; on the other hand, the biological toxicity of the zero-valent iron material to microorganisms is reduced, and the broad-spectrum applicability of the zero-valent iron is improved.

The invention provides a positive electrode film-forming additive as well as a preparation method and application thereof. The positive electrode film-forming additive is an alkylamide alkoxysilane having a specific structure. Nitrogen atoms containing lone electron pairs in the amide structure are easy to lose electrons, so that relatively low oxidation potential is shown, and a CEI film can be preferentially formed on the surface of the high-nickel ternary positive electrode; the high bond energy characteristic of the Si-O bond and the flexible characteristic of the chain alkyl (CH2) n enable the formed CEI film to be more flexible and stable, and the SEI film to be more flexible and elastic at a high temperature and to be better in stability. When the alkylamide alkoxy silane is used as a positive electrode film-forming additive, the side reaction between a positive electrode interface and an electrolyte can be effectively inhibited, the structural stability of a positive electrode is improved, and the high-temperature cycling stability and safety of a battery are remarkably improved.

The utility model discloses a rapid high-pressure inflator pump which comprises a shell, a control circuit board and an inflation assembly, wherein the control circuit board and the inflation assembly are installed in the shell. The inflation assembly is provided with a large-flow inflation machine core, a high-pressure inflation machine core, a main air outlet chamber and a main air outlet connector. The air outlet end of the large-flow inflation machine core and the air outlet end of the high-pressure inflation machine core are communicated with the main air outlet chamber, and the main air outlet connector is communicated with the main air outlet chamber. The control circuit board is electrically connected with the high-flow inflating machine core and the high-pressure inflating machine core respectively; and the control circuit board is provided with a pressure sensor for detecting the internal pressure of the main air outlet chamber. According to the utility model, for an inflatable product needing higher internal pressure, the inflatable product can be quickly inflated to the required pressure.