button cell battery cr1620.Canada overcomes two major technical bottlenecks in new solar cells

　　Electrolyte and electrode coating materials are two major problems that have plagued the development of new solar cell technology for more than 20 years. The relevant research results published by Canadian scientists in the latest "Journal of the American Chemical Society" and "Nature Chemistry" were considered by industry experts to have successfully solved the above problems and are the first step in the research of new low-cost, high-efficiency solar cell technology. A major breakthrough that is of great significance to the development of solar cell technology.

　　The earth receives more energy from the sun in one hour than humans consume in one year. However, compared with the huge potential of solar energy, the current application situation of solar energy is not optimistic. The power generation cost of silicon semiconductor solar cells commonly used today is higher than that of traditional energy sources, which is 5 to 6 times the cost of coal, oil and hydropower. For many years, scientists from various countries have been working hard to develop solar cells with higher efficiency and lower cost.

　　In the early 1990s, Swiss scientists invented a new type of solar cell using the principle of photosynthesis. However, the electrolyte of this solar cell had shortcomings such as strong corrosiveness, poor light transmittance, and low output voltage. The electrolyte is highly corrosive, causing life problems; the electrolyte is dark in color, which is not conducive to the effective transmission of light; the photovoltaic power of the electrolyte is low, limiting the output voltage to no more than 0.7 volts.

　　Another problem with this solar cell technology is that the cathode of the electrode needs to be covered with platinum, an expensive and opaque metal. For a long time, this kind of solar cell invented in Switzerland has not been effectively solved due to the above problems and cannot be put into practical application.

　　The research team led by Benoit Marsan, a professor at the Department of Chemistry at the University of Quebec in Canada, has been engaged in electrochemical solar cell research for a long time and has obtained a number of technology patents. Two technologies they developed involving chemical solar cells could effectively solve the problems faced by Swiss scientists.

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