5 results about "Fritted glass" patented technology

The application relates to the technical field of solar photovoltaic cells, in particular to a high-nickel conductive paste for N-type Topcon cells and a preparation method thereof, which is composed of, in mass percentage, nickel powder 40-80%, micron-level high-activity polycrystalline silver powder 5-50%, nickel powder sintering-aid glass powder 0.5-3% and organic carrier 5-12%. The nickel powder sintering-aid glass powder is low-Tg high-viscosity nickel powder sintering-aid glass powder after composition optimization; the low softening point ensures good fluxing effect; the high viscosity ensures the dispersion stability of silver-nickel particles and precisely controls the etching range, and meanwhile, the glass layer thickness after sintering is controlled in a proper range; through optimization of the nickel powder sintering-aid glass powder and the silver powder, the nickel doping amount is successfully increased to 40-80%, meanwhile, the cell efficiency is ensured to be better than or equivalent to that of pure silver paste, the reliability is good, and the paste truly has mass production capacity and value.

Embodiments of a honeycomb substrate are provided. The honeycomb substrate comprises a plurality of intersecting walls forming a plurality of channels extending through the honeycomb substrate from a first end to a second end. The honeycomb substrate comprises 40 wt% or greater sintered glass beads. The honeycomb substrate comprises a porosity of 60% or greater, and the honeycomb substrate comprises a surface area of 5 m2 / g or greater as measured according to Braunauer-Emmett-Teller methodology. Embodiments of the disclosure also relate to a method of preparing same.

An electronic component that comprises a laminate in which a plurality of low-temperature fired ceramic layers are laminated, wherein: the laminate is provided with a first layer that is positioned on one main surface and a second layer that is in contact with the first layer; the first layer and the second layer are formed from a low dielectric constant ceramic that contains a post-firing glass component (A1) and an oxide (C1) of a ceramic crystal component; the post-firing glass component (A1) is RO-Zno-Al2O3-B2O3-SiO2 wherein RO is at least one selected from the group consisting of MgO, CaO, SrO, and BaO; the ratio of RO, the ratio of ZnO, and the ratio of Al2O3 contained in the post-firing glass component (A1) are 0.1 mol% to 10 mol% inclusive; the sum of the ratio of RO, the ratio of ZnO, and the ratio of Al2O3 contained in the post-firing glass component (A1) is 15 mol% or less; the ratio (SiO2 / B2O3) of SiO2 and B2O3 contained in the post-firing glass component (A1) is less than 3.4; the oxide (C1) of the ceramic crystal component contains at least one selected from the group consisting of SiO2, BaAl2Si2O8, ZnAl2O4, and Zn2SiO4; and the amount of quartz contained in the first layer is smaller than the amount of quartz contained in the second layer.

A low-temperature fired ceramic that contains a fired glass component represented by RO—ZnO—Al2O3—B2O3—SiO2, wherein RO is at least one selected from the group consisting of MgO, CaO, SrO, and BaO, a percentage of RO, a percentage of ZnO, and a percentage of Al2O3 in the fired glass component are each 0.1 mol % to 10 mol %, a sum of the percentage of RO, the percentage of ZnO, and the percentage of Al2O3 in the fired glass component is 15 mol % or less, and a ratio of a percentage of SiO2 to a percentage of B2O3 (SiO2 / B2O3) in the fired glass component is less than 3.4; and one or more oxides of ceramic crystalline components that include at least one selected from the group consisting of SiO2, BaAl2Si2O8, ZnAl2O4, and Zn2SiO4.

This invention belongs to the field of metal resource recycling and photovoltaic module reuse technology, specifically relating to a method for separating metallic silver from the surface of crystalline silicon photovoltaic cells. The invention uses a low-concentration alkaline system as its core, adjusting the concentration of sodium hydroxide solution, adding isopropanol as a wetting agent, and applying alternating voltages under controllable conditions to achieve the stripping of silver grid lines. ‑ The erosion of the sintered glassy phase and the interfacial bonding phase causes microcracks and structural instability at the silver / silicon interface. Under external disturbances, the silver grid lines gradually lift and detach from the silicon wafer surface. This invention requires no strong acid, no high temperature, and produces no chlorine or NOx emissions. The process is mild, highly selective, and energy-efficient, achieving a silver stripping rate of 95–98%. This method is suitable for large-scale green recycling of decommissioned crystalline silicon solar cells and can significantly improve the resource recycling efficiency of the photovoltaic industry.