The main application areas of rubidium include catalysts (accounting for 37% of the market), defense and aerospace, electronic devices, medicine, and new energy. In traditional applications, rubidium is widely used in the chemical industry as a high-performance catalyst; in emerging fields, the demand for rubidium in atomic clocks, quantum communication, and optoelectronic devices is rapidly increasing. In particular, with the construction of 5G/6G communication networks and the development of the aerospace industry, the demand for high-precision rubidium atomic clocks has surged.