SOLAR CELL AND SOLAR CELL MODULE

PROBLEM TO BE SOLVED: To provide a solar cell module in which adhesive strength of a wiring material is improved.SOLUTION: A first electrode 21 has a plurality of finger portions 21a and a bus bar portion 21b electrically connecting the finger portions 21a. Each of the finger portions 21a extends along a first direction y. The finger portions 21a are arranged at spaces from one another along a second direction x vertical to the first direction y. A solar cell 10 includes a plurality of projection portions 23 provided on at least one side of the first direction y of the bus bar portion 21b on a first principal surface 20A. The projection portions 23 are provided so that the total peripheral length of the projection portions 23 per unit area of an end part in the second direction x of the first principal surface 20A is longer than the total peripheral length of the projection portions 23 per unit area of a center part.