CATL(SZ:300750) Sou Hu Cai Jing·2025-11-10 21:31Core Viewpoint - Contemporary Amperex Technology Co., Ltd. (CATL) has filed an international patent application for a positive electrode active material and its preparation method, indicating ongoing innovation in battery technology [1][2]. Group 1: Patent Application Details - The patent application is titled "A Positive Electrode Active Material and Its Preparation Method, Battery and Electric Device" with application number PCT/CN2024/134303, published internationally on November 6, 2025 [1][2]. - The patent falls under international patent classification codes H01M 4/36, H01M 4/62, and H01M 4/58, with inventors based in Ningde, Fujian Province, China [2]. Group 2: R&D Investment and Patent Activity - In 2023, CATL has announced a total of 1,281 international patent applications, representing a 20.51% increase compared to the same period last year [2]. - The company invested 10.095 billion yuan in research and development in the first half of 2023, which is a year-on-year increase of 17.48% [2].