Core Insights - BYD has filed an international patent application for a "graphite composite material and its preparation method, negative electrode, battery, and electric device" with the application number PCT/CN2025/079375, published internationally on February 5, 2026 [1] Patent Activity - In 2023, BYD has announced a total of 262 international patent applications, representing a significant increase of 495.45% compared to the same period last year [1] R&D Investment - For the first half of 2025, BYD invested 29.596 billion yuan in research and development, which is a year-on-year increase of 50.84% [1]