[Chen Zhongwei, academician of the Royal Canadian Academy of Sciences: electrochemical energy storage is an important guarantee for the application of new energy]. At the 2023 Zhongguancun Forum held on May 27, Chen Zhongwei, academician of the Royal Canadian Academy of Sciences and Canadian Academy of Engineering, said that electrochemical energy storage is an important guarantee for the application of new energy. The most important criteria for evaluating electrochemical energy are four parameters, the first is cost, the second is safety, the third is energy density, and the fourth is power density. In the dual-carbon context, the sustainability of batteries needs to be considered, including the regeneration of materials, the balance between energy and resources, and the balance between energy and battery safety. (Guo Songyi, Financial Associated Press, Dong Wei)