In recent years, driven by the external support of national policies, China's photovoltaic market has exploded, the cost of photovoltaic power generation has dropped rapidly, and the goal of user-side photovoltaic generation at a flat price is about to be realized. The photovoltaic industry's technological innovation is the fundamental endogenous driving force for achieving this goal. A few days ago, Zhengxin Photovoltaics launched a heavyweight launch of graphene photovoltaic products. It is a landmark event for technological innovation to promote the transformation of the photovoltaic industry.
Zhengxin photoelectric graphene series photovoltaic products released heavily
On March 26th, the conference of Zhengxin Optoelectronic Graphene Photovoltaic Products with the theme of 'G12 Transformation Era' was held in Beijing. Li Junfeng, former Director of the National Strategy Research Center for Climate Change and International Cooperation, and Photovoltaic Committee of the Chinese Renewable Energy Society Secretary General Lu Fang, President of the Chinese Academy of Science and Technology Zhou Xingguo, Dr. Lu Peng from the University of Science and Technology of China, and other government leaders, experts and scholars were invited to attend, and witnessed the innovative technology in the era of G12 transformation with nearly one hundred people in the industry. Graphene 12-gate conventional, graphene 12-gate dual-glass assembly, graphene 5-gate conventional and dual-glass assemblies and other new products come out heavy, and with superior light transmittance, superior hydrophilicity and unique self-cleaning Many differentiated core competencies such as capabilities have become the focus of attention in the industry. Zhengxin Optoelectronics President Wang Yingchun, Marketing President Li Qian, Technical Quality General Manager Wang Dong and Operation Center Vice President Zhang Wei and other leaders jointly unveiled this innovative technology.
In this press conference, Wang Yingchun stated: 'After more than ten years of development, China's photovoltaic industry has occupied a global leading position in terms of technology, scale, and cost, while the industry has been surging under the general trend of accelerated transformation and upgrading of the industry. A wave of vigorous research and development efforts to speed up the core technology iterations, with a view to advancing the cost reduction of photovoltaic power generation as soon as possible. As the largest photovoltaic power generation company listed on the New Third Board, Zhengxin Optoelectronics has always been adhering to the concept of technological innovation as its precursor and technological innovation. Dare to explore, dare to be the first person to eat crabs, and rely on a strong and solid technical innovation achievements to nurture graphene series of high-efficiency photovoltaic modules, which will help increase the level of photovoltaic generation at the earliest possible date. We believe that with the After the launch of graphene photovoltaic products, more companies will join in the application of graphene technology in the photovoltaic industry. This will certainly accelerate the development of graphene and photovoltaic technology.
Wang Dong pointed out: 'In 2018, China's photovoltaic industry will continue to show a steady upward trend in the development of technology will be updated faster, and to speed up how to improve power generation efficiency and reduce costs. Graphene technology is in line with the continuation of industrial technology Iteratively develops advanced technologies. Graphene's greatest feature is its ability to increase glass transmittance and glass self-cleaning capacity, thereby further increasing the power of photovoltaic modules and increasing the output of photovoltaic modules. In terms of self-cleaning capacity, common Photovoltaic module technology often has only ultra-hydrophilic or photocatalytic effects, and the only perfect combination of these two technologies is graphene technology. Later, he also demonstrated the self-cleaning capability of graphene photovoltaic modules. Guest guests unanimously praised.
According to Li Junfeng, former director of the National Strategy Research Center for Climate Change and International Cooperation, and researcher Li Junfeng, China's photovoltaic industry has entered a rational development stage. Enterprises relying solely on 'storytelling' have no room for survival. Enterprises, regardless of their size, must be severe. The survival and development of the market, rely on the innovative strength in the core technology.
In the process of technological innovation, deep cooperation between industry, universities, and research institutes is the key to the rapid industrialization of advanced technologies. According to Dr. Lu Peng, graphene coated glass technology is a result of the cooperation and development between Zhengxin Optoelectronics and China University of Science and Technology. Graphene is a kind of The magical material has a wide range of application prospects in the solar energy field. Glass coating technology is just one of the applications. It is also the first technology to realize industrial application of graphene in the photovoltaic industry. In the future, both parties will also have glass on the back side of double-sided components. With the development of double-sided coating on the front glass and high-efficiency battery, the company has developed deeper cooperation to develop more efficient photovoltaic new products with graphene as the core.
'Quest' graphene efficient photovoltaic modules
China's PV industry has experienced ups and downs, a thrilling development process, big waves, and some photovoltaic companies that started their business in the early years have now gone bankrupt, reorganized or disappeared. Zhengxin Optoelectronics, as a 30-year-old PV company, has been making unremitting efforts for a long time and silently working hard. In recent years, Zhengxin Optoelectronics has done much more than that. The author thinks that perhaps Zhengxin Optoelectronics is continuing to do innovative things, only to avoid the immense fate of those companies that have simply imitated and blindly expanded their PV business, and have been striving to achieve stability.
As a professional technology media in the solar industry, this magazine pays attention to new technologies related to this new product release. The author believes that the ultimate goal of the advancement of photovoltaic technology is ultimately to reduce the cost of photovoltaic electricity generation. Therefore, with curiosity and oneness The 'question mark', at the press conference, in a written interview, and even at the booth of the 2018 China International Solar Power Applications Exhibition opened on March 27th, the author and Wang Dong had several discussions.
Zhengxin Optoelectronics' new product is mainly based on a new type of photovoltaic module with superposition of graphene coated glass and multi-gate technology. Its cost performance is naturally a key indicator.
It is understood that PV glass self-cleaning technology is currently on the market, but it has not been popularized. The main reason is that this technology self-cleans at the expense of glass transmittance and requires a larger coating process for conventional glass. Adjustment, immature process, unstable quality, and high cost. Zhengxin Optoelectronics' graphene coating process is not very different from conventional coated glass, and it uses an aqueous phase system coating solution, which is more environmentally friendly and easy to promote. The transmissivity of the coated glass is over 94.3%, the plate hardness is more than 3H, and the properties such as aging resistance, corrosion resistance, and friction resistance are evaluated by a third-party authoritative testing organization, and the self-cleaning effect of the glass is ensured by the super hydrophilicity and the photocatalytic effect.
Different from most companies in the society that use graphene as a fashionable concept but have not applied it industrially, at present, Zhengxin Photoelectric Graphene Coated Glass has preliminary supporting capacity of 500MW components. It is planned that the capacity will be further expanded to 2GW by the end of this year. By the end of 2019, the capacity will be expanded to about 5 GW, with a cost advantage of scale.
Multi-gate technology is an industry-recognized, cost-effective technology that can not only increase the power of components, but also greatly reduce the amount of silver paste, reduce the loss caused by cracking. Zhengxin photoelectric 12 main grid technology in battery graphic design , Component packaging and manufacturing processes and other aspects of innovation, the current in the fine grid conduction distance shortened, reducing the series resistance, cracking thermal resistance and efficiency attenuation, increased component power and life, but the overall production cost has not increased.
Therefore, based on the superposition effect of the graphene coated glass technology and the multi-gate technology above, the output power of the Zhengxin Opto-Graphene high-efficiency photovoltaic module can be effectively increased by about 2.5% to 3% compared to the conventional module products, and the lifetime is increased. The cost does not increase substantially, which lays a foundation for reducing the cost of photovoltaic electricity generation.
According to Wang Dong, on the basis of traditional single and double glass module production processes, Zhengxin Photoelectric Graphene multi-gate assembly will have existing multi-gate battery technology, graphene application technology PERC, N-type double-sided, black silicon battery process, etc. The integration of the current cutting-edge technologies will further boost the industry's cost reduction and efficiency gains.