Group 1 - The core point of the article is that CATL (Contemporary Amperex Technology Co., Limited) has filed an international patent application for a battery cell pairing system, indicating its ongoing innovation efforts in the battery production sector [1] - The patent application number is PCT/CN2024/109184, with an international publication date set for October 9, 2025 [1] - CATL has announced a total of 1,174 international patent applications this year, representing a 22.8% increase compared to the same period last year [4] Group 2 - 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% [4]