Substrate for PERC battery and PERC battery

• Main Authors: WU RENHUI, KANG HAITAO, GUO WANWU, LIU JINFENG
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The PERC battery comprises a battery body, the battery body comprises a plurality of main grid lines and a plurality of auxiliary grid lines, the main grid lines and the auxiliary grid lines are vertically arranged, the main grid lines comprise a plurality of large-electrode main grids and small-electrode main grids, the small-electrode main grids and the large-electrode main grids are arranged in parallel, and the large-electrode main grids and the small-electrode main grids are arranged in parallel. The battery body comprises a plurality of large electrode main grids and a plurality of small electrode main grids, an aluminum main grid is commonly connected between the plurality of large electrode main grids and the plurality of small electrode main grids, the plurality of auxiliary grid lines comprise wide auxiliary grids and narrow auxiliary grids, the wide auxiliary grids and the narrow auxiliary grids are fixedly connected, the battery body comprises a silicon wafer layer, a transparent conductive film i