证券之星消息，根据企查查数据显示比亚迪（002594）公布了一项国际专利申请，专利名为"正极材 料、正极极片、锂离子电池和用电设备"，专利申请号为PCT/CN2025/115984，国际公布日为2026年2月 26日。 数据来源：企查查 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成 投资建议。 今年以来比亚迪已公布的国际专利申请382个，较去年同期增加了526.23%。结合公司2025年中报财务 数据，2025上半年公司在研发方面投入了295.96亿元，同比增50.84%。 专利详情如下： 图片来源：世界知识产权组织（WIPO） ...

证券之星消息，根据企查查数据显示比亚迪（002594）公布了一项国际专利申请，专利名为"正极补锂 集流体及其制备方法、正极极片、锂离子电池和用电设备"，专利申请号为PCT/CN2025/112576，国际 公布日为2026年2月12日。 专利详情如下： 今年以来比亚迪已公布的国际专利申请323个，较去年同期增加了546%。结合公司2025年中报财务数 据，2025上半年公司在研发方面投入了295.96亿元，同比增50.84%。 数据来源：企查查 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成 投资建议。 图片来源：世界知识产权组织（WIPO） ...

Core Insights - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a positive electrode active material, positive electrode sheet, cylindrical battery cell, battery, and electric device, with the application number PCT/CN2025/072671, published internationally on October 30, 2025 [1][2]. Patent Details - The patent application includes a positive electrode active material that consists of a core portion made of lithium-containing transition metal oxide and a coating layer that covers part of the core's surface, which includes polymers such as fluoropolymers and oxygen-containing polymers [2]. - The application aims to reduce battery swelling and improve cycle performance when applied to batteries [2]. R&D Investment - In 2023, CATL has filed a total of 1,267 international patent applications, representing a 19.53% increase compared to the same period last year [1]. - 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% [1].