Recently, Taizhou Zhonglai Optoelectronics Technology Co., Ltd. received a report from the National Center for Photovoltaic Product Quality Supervision and Inspection (CPVT). The report shows that the conversion efficiency of the N-type IBC battery of Zhonglai Optoelectronics M2 size is 22.22%, and the IBC battery can be mass-produced. Technology is in the leading position in the industry. The double-sided battery of the N-type IBC structure is the battery structure with the highest conversion efficiency in the N-type battery. The front of the battery is not covered by the grid lines. The optical trapping effect and the surface passivation of the front surface and the metallization of the battery are respectively on the two surfaces of the battery. Therefore, the mutual restriction between them cannot be considered, and the IBC battery is greatly expanded. Optimum space for optical and electrical performance, battery conversion efficiency has also been greatly improved.
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