CATL increases investment in all-solid-state battery R&D, aims to achieve small-batch production by 2027

CATL has increased its R&D investment in all-solid-state batteries this year and has expanded its all-solid-state battery R&D team to over 1,000 people. The company is currently focusing on the sulfide route and has entered the 20Ah sample trial production stage. It is revealed that CATL's solution can achieve an energy density of ternary lithium batteries of 500Wh/kg, which is more than 40% higher than existing batteries. Although the charging speed and cycle life have not yet met expectations, solid-state batteries have become a hot spot for companies to compete for research and development. CATL plans to reach a level of 7-8 in 2027, which means that all-solid-state batteries can be produced in small batches.