The first high-end forum of the China Electric Vehicle Hundred People's Conference with the theme of "new ecology of industrial development" was held in Beijing. At the meeting, Zhang Tianren, Chairman of Tianneng Group, said that the technical route of power battery should be decided by the market. The power battery was first proposed in 1998 in China, which coincided with the two ups and downs of electric bicycles. Since then, Tianneng Group has begun to invest in battery research and development