Solar cell system manufacturing method

A solar cell system making method, comprising steps of:

• S11, making a plurality of round P-N junction preforms, wherein each of the plurality of round P-N junction preforms is made by (a) stacking a P-type silicon layer and a N-type silicon layer on top of each other, and (b) forming a P-N junction near each interface between the P-type silicon layer and the N-type silicon layer;
• S12, stacking the plurality of P-N junction preforms along a first direction and forming an electrode layer between each adjacent two of the plurality of P-N junction preforms, and electrically connecting each adjacent two of the plurality of P-N junction preforms through the electrode layer;
• S13, forming a first collection electrode on a first of the plurality of P-N junction preforms and forming a second collection electrode on a last of the plurality of P-N junction preforms to form a cylindrical solar cell system preform;
• S14, cutting the cylindrical solar cell system preform along the first direction and the chords thereof to obtain a plurality of arc shaped solar cell systems and a prism shaped solar cell system;
• and
• S15, cutting the prism shaped solar cell system into a plurality of laminations.