Key points of photovoltaic solar energy storage lithium battery technology

A photovoltaic cell is a photovoltaic device that uses different photocurrents generated by the different mobility of photogenerated electrons and holes on semiconductors to generate electricity. The principle of photovoltaic power generation is mainly the principle of power generation using solar radiation energy and the transmission principle of solar radiation energy. Solar radiation energy is converted into electrical energy through electrons. Since solar energy is a visible light source without light radiation and without electricity, solar radiation is a natural clean energy that can be used by humans. Photovoltaic cells are widely used in the fields of industrial production and building energy conservation, especially in the fields of industrial production and building energy conservation.

The research of solar energy storage lithium batteries is mainly concentrated in several fields such as lithium ion batteries and solid electrolytes. Due to the characteristics of high energy density, low price and long service life of lithium ion batteries, its research has attracted much attention. Due to the advantages of high energy density, large capacity, and no pollution to the environment, lithium-ion batteries have been widely used in energy storage systems in recent years. However, lithium-ion batteries have the disadvantages of poor high-temperature resistance and low power consumption, so energy storage of lithium-ion batteries in sunlight will pose a greater challenge. Solar cells have high brightness and good scattering properties under sunlight, which makes solar cell energy storage systems have high stability, long life and high power density; however, there are problems such as electron migration and thermal runaway inside. Battery performance and stability; in addition, low energy conversion efficiency will lead to low system power density, and the problem of low power conversion efficiency also makes photovoltaic power generation systems have greater unsafe factors. Therefore, the development of solar energy storage lithium batteries that can store a large amount of energy under sunlight and have high stability and long life has become an object of research attention. This type of solar energy storage lithium battery materials are mostly lithium metal or rare earth metal oxide materials, which have been widely used in solar power stations, Photovoltaic cells and electric vehicles and other fields.