With the rapid development of pure electric vehicles, a new problem has emerged in the field of electric vehicles-how to ensure the safety and quality of pure electric vehicles? After years of professional research and practice, lithium-source pure electric vehicles have successfully solved these two problems, and the breakthrough of this technology will play a revolutionary role in promoting the development of electric vehicle industry at home and abroad. Air pollution in China cannot be ignored, and motor vehicle emissions have become one of the main sources of pollution. With the development of economy, the number of cars in China will increase by 10 times, so oil import will become a big problem. Therefore, the development of pure electric vehicles in China is a long-term and significant development strategy. The pure electric bus developed and produced by Lithium Battery Group for many years adopts permanent magnet synchronous motor with integrated motor and gearbox structure, improves the transmission efficiency of the whole vehicle through auxiliary assembly, omits fuel tank, engine, gearbox, cooling system and exhaust system, and realizes zero pollution and zero emission.