Chint New Energy Technology Co., Ltd.

Jinfang Yang

Mingzhang Feng

Sheng He

Wei-Chih Hsu

Some embodiments of the present invention relate to a technical field of N-type TOPCon solar cells, and disclose a back-side metal electrode of an N-type TOPCon solar cell. The back-side metal electrode includes a substrate, a plurality of first silver fine grids disposed on a passivation film which is on a back side of the substrate, a plurality of second aluminum fine grids overlaid on the plurality of first silver fine grids, and a plurality of first silver main grids disposed perpendicular to the plurality of first silver fine grids. Each of the plurality of first silver main grids is a segmented structure. The back-side metal electrode further includes a plurality of second aluminum main grids, which are formed, in a printing manner, between any two adjacent grid segments of a plurality of grid segments and around each of the plurality of grid segments.

Back-side metal electrode of N-type TOPCon solar cell, and method for preparing back-side metal electrode of N-type TOPCon solar cell, and N-type TOPCon solar cell

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Zhejiang, China

Jinfang Yang