请问公司生产的四元前驱体相较传统产品有什么优势？格林美：在保证高能量密度的同时提升了循环和安全性能

Group 1 - The company has developed the world's first ultra-high nickel 9-series quaternary core-shell precursor, which features a three-stage microstructure design that enhances performance compared to traditional products [2] - The new precursor material transitions from a single-stage structure to a three-stage core-shell structure without altering the total metal composition, allowing for a gradual decrease in nickel content and an increase in manganese content from the core to the shell [2] - This design reduces the reactivity at the interface between the material and the electrolyte, minimizing side reactions while ensuring high energy density and improving cycle and safety performance [2]