Tianli Lithium Energy Group Co., Ltd. announced that the company recently obtained two invention patent certificates issued by the National Intellectual Property Office, involving core technologies in the field of lithium-ion battery electrode materials. The two invention patents are respectively titled "A Method for Reducing Surface Residual Alkali in High-Nickel Ternary Electrode Materials" and "A High-Nickel Layered Oxide Cathode Material with Surface High-Entropy and Internal Medium-Entropy Gradient Doping and Its Preparation Method." The application dates were September 22, 2022, and July 17, 2024, respectively, with both patents granted authorization on November 25, 2025.