Core Points - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a positive electrode active material and its preparation method, battery, and electric device, with the application number PCT/CN2024/117705, published internationally on October 9, 2025 [1][2] - The positive electrode active material includes phosphate particles and a carbon coating layer, which enhances battery performance by reducing expansion rates and improving cycle performance [2] Patent Details - The patent application was filed under the Patent Cooperation Treaty (PCT) and is classified under several international patent classification codes, including H01M 4/38, H01M 4/36, and H01M 10/0525 [2] - The application was submitted on September 9, 2024, with a priority date of April 1, 2024 [2] - The patent aims to improve the performance of battery cells, which is critical for the electric vehicle and energy storage markets [2] R&D Investment - In 2023, CATL has published 1,174 international patent applications, representing a 22.8% increase compared to the same period last year [3] - The company invested 10.095 billion yuan in research and development in the first half of the year, reflecting a year-on-year increase of 17.48% [3]