Changzhou Bitai Technology developed polysilicon battery dry-fabricated equipment

The reporter was informed on August 25 in Changzhou Bitai Science and Technology Co., Ltd. that the company's independent research and development of a new generation of polysilicon batteries RIE dry-finishing equipment Tysol3000-RIE successfully shipped JA Solar. BiTech's breakthrough in plasma dry etching is a major advancement in high-end equipment technology, which solves the dependence of China's solar cell manufacturing core technology on import issues and provides strong support for the continuous advancement of China's solar cell technology.

BioStar Technology is focused on the research and development and manufacturing of a new generation of high-efficiency solar cell equipment. It was founded by GSR Ventures in Silicon Valley in the US for a period of US$10 million. Based on the independent research and development of linear plasma source technology, BioStar Technology has successfully developed the Tysol-RIE series of dry-texturing equipment, which has become the only equipment manufacturing enterprise in the industry to achieve mass production of RIE dry texturing technology.

It is understood that after the relevant process optimization, Than Tai technology than the traditional wet-textile velvet system can increase the conversion efficiency of polysilicon battery by more than 0.8%, so that the current production of polysilicon battery efficiency from about 18% to nearly 19% At present, this technology is widely concerned by the mainstream PV manufacturers in the industry. According to the announcement of JAC, the average power of 6×10 “Runxiu” battery modules made of black silicon cells has reached 275 watts, which is 15 watts higher than the power of conventional polycrystalline cell modules currently on the market, and the corresponding unit power generation. An increase of 6% will significantly reduce the cost of the associated power generation system.

The former US founder and CEO of Changzhou Bite Technology Co., Ltd., who has studied in the United States for many years and is engaged in the development of plasma coating technology, told reporters that the dry-finished black silicon is a technology that can be invested at the lowest cost to obtain the maximum benefit and can be grafted. To the traditional battery production line, to provide solutions for China's solar cell technology progress. Dry-process velvet can not only be used for conventional polysilicon cells, but also can achieve the same effect for the gold-wire-cut silicon wafers, laying the foundation for further reducing the wafer thickness and reducing the cost of solar cells. Li Jian, founder and president of BioStar Technology, said: "Recently, we received multiple orders consecutively and several solar cell manufacturers are actively following up. It is expected that black silicon technology will be expanded and become the standard for polycrystalline cells. Our black silicon battery can be superimposed to match PERC's efficiency of breaking 20% ​​of polycrystalline silicon, reaching 290-295 watts of component power, laying the foundation for the technological upgrade of China's crystalline silicon cell industry."

It is reported that there is a polysilicon battery production line with a capacity of over 40 GW in China, and the market scale is growing at a rate of 20% per year. The use of dry texturing instead of existing wet texturing can be retrofitted to old lines, and can also be achieved when new lines are constructed. A Tysol-3000 RIE device can produce 100 megawatts (100 MW) of batteries each year, so 1 GW requires about 10 devices. , has great market potential. (Wu Ningqi Hu Manchao reporter Ding Xiuyu)