Chuangyebang was informed that recently, Silver Nanomaterials provider Silvi announced the completion of an angel round of financing of tens of millions of RMB, led by Volcanic Stone Investment and followed by the upstream and downstream industry capital of photovoltaics. This round of financing will be used for the research and development and team expansion of Silvix in photovoltaic low-temperature silver paste and other products.
Under the background of double carbon and sustainable development, the low-carbon transition of clean energy has become the top priority. In 2020, global renewable energy generation will only account for 29%, of which photovoltaic energy will only account for 3%. As the cost of photovoltaic power generation continues to decline, the new installed capacity of photovoltaics in the world is growing rapidly. It is estimated that in 2050, photovoltaic energy will account for more than 25% of the global total energy.
At present, the space for improving the efficiency of photovoltaic cells PERC is limited, and HJT cells are expected to become the mainstream technology route of the next generation. The key to HJT cells is the photovoltaic silver paste. Silver paste is an electrode material printed on both sides of the silicon wafer and plays an important conductive role. Its performance is directly related to the photoelectric conversion performance of photovoltaic cells. The proportion of silver paste in non-silicon costs exceeds 50%. It accounts for about 20% of the overall cost of the cell.
Due to the unique properties of the high hydrogen content of the amorphous silicon film of HJT cells, the production temperature should not exceed 220 °C, and many technical difficulties still need to be overcome. Unlike the high localization rate of the high temperature silver paste market, the low temperature silver paste market is currently dominated by dominated by overseas manufacturers. In addition, compared with high temperature silver paste, low temperature silver paste has high unit price and large consumption, so reducing the silver content of silver paste has become the focus of various manufacturers in the industry.
Silwell is committed to the research and development of nano-silver materials. Its original material technology can make the granular silver of the low-temperature silver paste achieve the “sintered silver” effect in the high-temperature silver paste. Under the same conductivity of the silver paste, the silver paste can be greatly reduced. the silver content, thereby reducing the cost of silver paste. In addition, Sierwei has also achieved cost-effective shipments of nano-silver products in the optoelectronic fields such as touch display.
The Volcanic Stone Investment Team stated that as the next generation of photovoltaic cell technology, the premise of HJT’s scale must be the cost reduction of silicon wafers and core auxiliary materials, silver paste. The biggest advantage of the Sierwei team is that it can develop cost-effective products based on the basic reaction mechanism of materials. In terms of photovoltaic low-temperature silver paste, the company can improve the conductivity of silver paste through a low-cost modification solution, which is not only suitable for pure silver, but also for silver-coated copper materials. It is hoped that the company can become a future-oriented nano-silver material manufacturer.
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