6results about How to "Guaranteed conductivity" patented technology

This utility model discloses a warp-knitted fabric, relating to fabric technology. The key technical points are: it includes a base layer, which is woven from GB1 and GB2 guide yarns to form a warp-knitted mesh structure. The diameter of the GB1 guide yarn is larger than that of the GB2 guide yarn, and short fibers are provided on the outer periphery of the GB1 guide yarn. A moisture-wicking yarn is added to the base layer, spanning the warp-knitted mesh structure. The warp-knitted mesh structure of this utility model effectively ensures the fabric's breathability, and the moisture-wicking yarn effectively transfers excess sweat to drier areas of the base layer, thus ensuring better sweat absorption and improving fabric comfort. The moisture-wicking yarn, made from twisted C-shaped polyester fibers, further enhances its ability to transfer excess sweat.

This invention belongs to the field of lithium-ion battery technology, and relates to a flame-retardant gel electrolyte, its preparation method, and a lithium-ion battery. The flame-retardant gel electrolyte is a gel structure in which a three-dimensional cross-linked network encapsulates the electrolyte. The three-dimensional cross-linked network is formed by in-situ polymerization of fluoroacrylate, octavinyl-POSS, and methylenebisacrylamide. The three-dimensional cross-linked network formed by the in-situ polymerization of fluoroacrylate, octavinyl-POSS, and methylenebisacrylamide encapsulates the electrolyte, making it less prone to leakage and improving the flame-retardant effect of the gel electrolyte. Simultaneously, the three-dimensional cross-linked network structure provides a structural basis for ion transport, ensuring ionic conductivity.

The invention relates to the technical field of solar cells, and provides a cell electrode printing method, a back contact cell and a photovoltaic module. The method comprises the steps that a screen printing plate is not changed, an N-type auxiliary grid and a P-type auxiliary grid are firstly printed, a main grid is finally printed, main grid printing is a sequence of overlapping and printing the main grid in three working procedures, and a composite electrode structure is formed on the back face of the battery. According to the invention, the step effect of the auxiliary grid printing can be eliminated and the forming uniformity of the main grid can be optimized through the matching of the printing sequence of the first auxiliary grid and the multi-channel main grid, so that the line width of the auxiliary grid is effectively reduced, the height-width ratio is improved by about 3-5%, the unit consumption of silver paste is saved by about 5-10% under the condition that the design line width of the screen printing plate is not changed, and meanwhile, a foundation is laid for 1-3 mu m lower detection of the design line width of the screen printing plate; and the series resistance and electrode shading loss can be effectively reduced.

This invention relates to the technical field of high-end voice coil motor spring preparation methods, specifically to a method for preparing CuTi alloy strip based on ultrasonic-assisted solidification and liquid nitrogen cold rolling. The specific process is as follows: ingredient preparation, determining the approximate content range of each element in the copper-titanium alloy; vacuum induction melting; ultrasonic vibration by applying ultrasonic fields of different power during alloy melting and solidification; solution treatment of the obtained copper-titanium alloy ingot, followed by water cooling; liquid nitrogen cold rolling, during which the copper-titanium alloy plate remains in a low-temperature environment to obtain a high-density nanotwinned structure; and aging treatment of the copper-titanium strip in a vacuum atmosphere furnace to obtain the final copper-titanium alloy strip. This invention solves the problem in existing methods where copper-titanium alloy ingots are prone to compositional segregation and coarse primary phase structures, leading to microstructural inheritance during subsequent deformation, thus hindering the synergistic improvement of the strength and conductivity of the copper-titanium alloy strip.

The invention belongs to the technical field of lithium ion batteries, and discloses a single crystal positive electrode material for a lithium ion battery, nickel cobalt lithium manganate is used as a matrix, the surface of the matrix is coated with composite fluoride LiCoNxFy, x is more than or equal to 0.2 and less than or equal to 5, y is more than or equal to 4 and less than or equal to 8, the composite fluoride accounts for 1-5 mol% of the matrix, and a proper amount of protective layer can ensure that the matrix is uniformly and compactly covered, so that the single crystal positive electrode material is prepared. And meanwhile, the integrity of the alpha-NaFeO2 type layered structure of the matrix is kept. The invention also discloses a preparation method, double coating of NFn and LiCoF3 is realized through a three-step sintering process, and the prepared single crystal positive electrode material still keeps a complete alpha-NaFeO2 type layered structure. The invention also discloses a lithium ion battery composed of the single-crystal positive electrode material for the lithium ion battery.

This invention discloses a coating solution for preparing high-temperature resistant and high-thermal-conductivity epoxy-based conductive films, its preparation method, and its application. By weight, it comprises the following raw material components: 70-85 parts liquid epoxy resin, 15-30 parts solid epoxy resin, 5-35 parts latent curing agent, 0.5-5 parts accelerator, 300-600 parts conductive filler, 15-30 parts thermoplastic resin, 0.5-2 parts coupling agent, and 30-60 parts solvent. The thermoplastic resin is a phenoxy resin with a special chemical structure and a molecular weight of 20,000-65,000 g / mol. This invention, by introducing a high-temperature resistant thermoplastic resin into the coating solution formulation, enables the prepared conductive film product to possess excellent comprehensive properties such as toughness, adhesion characteristics, and high-temperature stability.