1results about How to "Simple printing process" patented technology

The utility model is suitable for solar cell technical field provides a solar cell, battery component and photovoltaic system, solar cell includes: silicon base, a plurality of first thin grid and a plurality of second thin grid, a plurality of first main grid, at least one first main grid is equipped with first solder pad and second solder pad, and first main grid includes two first test parts that are connected in second solder pad opposite two sides along first direction respectively, and the width of first test part is greater than the width of the position of first main grid connected with first solder pad, a plurality of second main grid, at least one second main grid is equipped with third solder pad and fourth solder pad, and second main grid includes two second test parts that are connected in fourth solder pad opposite two sides along first direction respectively, and the width of second test part is greater than the width of the position of second main grid connected with third solder pad. The solar cell provided by the utility model does not need to print test solder pad, can simplify printing technology, and is favorable for improving carrier collection effect.