The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Jan. 22, 2013
Heraeus Precious Metals North America Conshohocken Llc, West Conshohocken, PA (US);
Lei Wang, Conshohocken, PA (US);
Cuiwen Guo, Horsham, PA (US);
Raymond Michael Cosimano, Philadelphia, PA (US);
Weiming Zhang, West Conshohocken, PA (US);
Heraeus Precious Metals North America Conshohocken LLC, West Conshohocken, PA (US);
Abstract
The invention relates to an inorganic reaction system used in the manufacture of electroconductive pastes. The inorganic reaction system comprises a lead containing composition and elemental tellurium, where in the lead containing composition is between 5-95 wt. % of the inorganic reaction system, and the elemental tellurium is between 5-95 wt. % of the inorganic reaction system. More preferably, the lead containing composition is between 40-90 wt. % of the inorganic reaction system, and the elemental tellurium is between 10-40 wt. % of the inorganic reaction system. The lead containing composition can be a glass frit and can further comprise lead oxide. Another aspect of the invention relates to an electroconductive paste composition that comprises metallic particles, an inorganic reaction system as disclosed, and an organic vehicle. Another aspect of the invention relates to an organic vehicle that comprises a binder, a surfactant, a solvent, and a thixatropic agent. Another aspect of the invention relates to a solar cell printed with an electroconductive paste composition as disclosed, as well as an assembled solar cell module. Another aspect of the invention relates to a method of producing a solar cell.