On March 6, the 10th Solar Cell Slurry and Metallization Technology Forum hosted by AsiaChem Consulting was held in Changzhou City, Jiangsu Province. The meeting discussed the outlook for the photovoltaic industry and the slurry market prospects, as well as heterojunction, TOPCon and XBC cells, Technology and metallization process development trends.

Lian Weifei, director of cell technology R&D of Zhejiang Winhitech New Energy Co., Ltd. (abbreviation: Winhitech), was invited to attend the meeting and shared the "Progress of Winhitech Heterojunction Solar Cell Technology" and had an in-depth discussion on heterojunction cells with colleagues in the photovoltaic industry. Metallization trends jointly promote the development of heterojunction technology.

The report points out that 2023 is the first year of mass production of n-type high-efficiency cells. As heterojunction solar cells that play the most important role in photoelectric conversion efficiency in n-type technology, with the collaborative efforts of upstream and downstream enterprises such as equipment, materials, and cell manufacturing, product manufacturing There have been new breakthroughs in cost and efficiency. Winhitech's heterojunction cell production line has achieved batch application of silicon wafers with a thickness of 110 microns; the core CVD fully adopts double-sided microcrystalline technology; the fine-line printing process has reduced the silver consumption of the silver electrode from 20mg/W at the beginning of the line. It has been reduced to about 16 mg/W currently; through technical optimization, the silver-coated copper slurry with low silver content has achieved the same or even better results than the pure silver slurry in terms of product electrical performance and reliability. The comprehensive silver consumption per watt of the cells has been It is lower than competing TOPCon products, and there is still room for further decline. In addition, it is expected that in Q2 of 2024, Winhitech will launch self-produced mainbar-less module products, which will have more advantages in cost and power.

Heterojunction technology continues to show great advantages in the photovoltaic market with its high efficiency, low attenuation and low-cost potential. As technology continues to make breakthroughs and market demand continues to grow, heterojunction technology is expected to become an important part of the photovoltaic industry in the next three years. With its excellent technology and production delivery capabilities, Winhitech continues to promote the development of heterojunction industrialization, continues to innovate, and contributes to the global clean energy transformation.