Sou Hu Cai Jing·2026-02-27 21:50Core Viewpoint - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a new battery technology, indicating its ongoing commitment to innovation and research in the battery industry [1] Group 1: Patent Application - CATL has announced an international patent application titled "Battery Monomer, Battery Device and Power Device, Preparation Method of Negative Electrode Sheet" with application number PCT/CN2025/100299, published internationally on February 26, 2026 [1] Group 2: Patent Statistics - In 2023, CATL has filed a total of 279 international patent applications, representing a year-on-year increase of 33.49% compared to the same period last year [1] Group 3: R&D Investment - In the first half of 2025, CATL invested 10.095 billion yuan in research and development, which is a year-on-year increase of 17.48% [1]