Zeng Yuqun, Chairman of CATL, appeared at CATL Tech Day to talk about CATL's innovative ideas and specifically introduced the "multi-core" era that CATL is committed to creating. Zeng Yuqun said that the multi-core era makes users truly the center and makes battery customization possible. Users do not need to compromise between the various characteristics of the battery, allowing the battery to enter the "your era". He believes that in the future, the key is to better understand consumer needs and truly serve customers. "At the beginning, everyone was scrambling for price, but do consumers really need this money? The "pain" and "pleasure" of consumers need to be solved by "multi-core". Multi-core originated from the previous AB battery technology, and it can shine in the future." Zeng Yuqun said. He also said that dual-core and multi-core technologies are expected to greatly accelerate the promotion of technologies such as solid-state batteries.