WeLion

Beijing WeLion New Energy Technology Co., Ltd., known simply as WeLion New Energy or WeLion (sometimes stylized WELION), is a Chinese battery manufacturer specializing in semi-solid and solid state batteries for use in electric vehicles and energy storage systems. The company is headquartered in the Beijing's Fangshan District, and is a spinoff from the Labratory of Renewable Energy of the Institute of Physics of the Chinese Academy of Sciences.^[1] It is best known for supplying the world's first mass produced semi-solid state battery cells for an automotive traction battery application, in the form of Nio's 150 kWh swappable battery pack.