Joysun EVTOL batteries represent cutting-edge power solutions for future urban air mobility. The company’s fourth-generation all-solid-state power battery pack targets a cell energy density of ≥500Wh/kg, supports an 800V ultra-fast charging architecture, and achieves 80% charge in 10 minutes. All-solid-state design eliminates liquid electrolyte, preventing leakage and enhancing thermal stability, critical for passenger safety in manned flight. The ≥500Wh/kg energy density nearly doubles current lithium-ion capabilities, enabling meaningful range for EVTOL aircraft with vertical takeoff and landing. Through deep collaboration with research institutions such as Xiangtan University and Yanshan University, Joysun is continuously advancing solid-state battery technology for aviation applications, providing safe and reliable power for EVTOL manned flight.