Nowadays, in the context of global climate change, deterioration of human ecological environment, and shortage of conventional energy resources, solar photovoltaic power generation is highly valued worldwide. The solar cell wing is the energy source of Shenzhou 13: At 9:56 on April 16, the Reentry capsule of Shenzhou 13 manned spacecraft landed successfully in the Dongfeng landing site. The Shenzhou 13 manned flight mission was a complete success, and the three astronauts also returned safely. Since last year's "check-in" to the China Space Station, the Shenzhou 13 flight crew has lived in the Tianhe core module for more than 180 days. Living in orbit for 6 months, in addition to multiple supply of transport rockets, the first use of a large area retractable flexible solar cell wing has also become a winning weapon to ensure the normal operation of all equipment in the cabin and maintain the normal life of astronauts. This is the first time China has adopted flexible solar wings as the energy source for spacecraft. Flexible solar wings combine four new technologies: large-scale lightweight, high reliability with repeated deployment and retraction, long life in orbit for 10 years in low orbit, and high load-bearing capacity with both rigidity and flexibility. A single wing can provide 9kW of power to the space station. You know, the Dong Fang Hong 1 satellite we know well used chemical batteries in those days.