2results about How to "Improve wetting efficiency" patented technology

The invention discloses a screening method of a perovskite precursor solution additive, a perovskite precursor solution and a battery, and relates to the field of batteries. The screening method comprises the following steps: analyzing a solvent and a solute of a base solution of a perovskite precursor solution, and screening an additive which does not dissolve any component in the solute, is mutually miscible with the solvent, has surface tension lower than that of the base solution of the perovskite precursor solution and has a difference of 20 DEG C or more from the base solution of the perovskite precursor solution at normal pressure from various alternative additives as a target additive. The screened target additive does not damage the original solute-solvent system, and can improve the wetting efficiency and adjust the volatile performance of the perovskite precursor solution on the premise of not influencing the crystallization performance of the hybrid perovskite solar cell precursor solution, thereby improving the comprehensive performance of the precursor solution.

The utility model discloses a textile textile cloth wet device, and the wet box main part one side is provided with two openings, and two openings are arranged up and down, and the opening located below is cloth inlet, and the opening located above is cloth outlet, and the wet box main part bottom is provided with water, and the wet box is rotationally connected with a plurality of upper guide rollers and lower guide rollers, and the upper guide roller is correspondingly set with cloth outlet, and the lower guide roller is correspondingly set with cloth inlet, and the lower guide roller bottom is located below the liquid level of water, the wet box main part is provided with cloth pressing assembly, and the cloth pressing assembly is located between the upper guide roller and the lower guide roller, and the wet box main part top wall is fixedly connected with the tensioning assembly, and the tensioning assembly is in contact with the textile cloth and is set. The utility model discloses simple structure, convenient operation, and high wetting efficiency for textile cloth and can control the humidity of textile cloth.