Perovskite battery: the next generation of solar energy technology

The photoelectric conversion efficiency of perovskite solar cells laboratory has grown rapidly, and the experimental conversion efficiency of laminated cells has surpassed that of silicon based solar technology. The photoelectric conversion efficiency of perovskite solar cells laboratory has grown rapidly, and the experimental conversion efficiency of laminated cells has surpassed that of silicon based solar technology.

Perovskite solar cells (PSCs) are solar cells that use perovskite structural materials as light absorbing materials. They are the representative of the third generation of high-efficiency thin film cells. They have advantages of high efficiency, low cost and high flexibility. They will be the star materials in the field of photovoltaic BIPV and mobile power generation for electric vehicles in the future.

Perovskite battery material has low cost, simple structure, short manufacturing process and low production energy consumption. Compared with 1GW capacity investment, the total investment of silicon materials, silicon chips, batteries and components of crystalline silicon is about 900 million yuan, close to 1 billion yuan, while the capacity investment of 1GW of perovskite is about 500 million yuan, half of crystalline silicon, after reaching a certain maturity.

The key points for the future development of perovskite are: 1) improving the stability of the perovskite top battery in the stack battery device and making it in a large area have become the key to technology development, and also the basis for the industrialization of the stack battery; 2) Research and development of perovskite optoelectronic equipment, accumulation of laser, evaporation, magnetic control and SALD equipment and supporting processes; 3) The industrial development of perovskite technology requires the cooperation of materials, equipment and coating to develop new coating materials and related coating equipment to meet the needs of new products, which is a long and arduous process; 4) The structure of traditional perovskite light absorbing materials is easy to be destroyed under long-term lighting and heating conditions, resulting in rapid degradation of battery performance. Stability is a world problem.