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].

Core Points - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a positive electrode active material and its preparation method, battery, and electric device, with the application number PCT/CN2024/117705, published internationally on October 9, 2025 [1][2] - The positive electrode active material includes phosphate particles and a carbon coating layer, which enhances battery performance by reducing expansion rates and improving cycle performance [2] Patent Details - The patent application was filed under the Patent Cooperation Treaty (PCT) and is classified under several international patent classification codes, including H01M 4/38, H01M 4/36, and H01M 10/0525 [2] - The application was submitted on September 9, 2024, with a priority date of April 1, 2024 [2] - The patent aims to improve the performance of battery cells, which is critical for the electric vehicle and energy storage markets [2] R&D Investment - In 2023, CATL has published 1,174 international patent applications, representing a 22.8% increase compared to the same period last year [3] - The company invested 10.095 billion yuan in research and development in the first half of the year, reflecting a year-on-year increase of 17.48% [3]

Group 1 - The core point of the article is that Contemporary Amperex Technology Co., Ltd. (CATL) has applied for a patent related to a separator membrane, battery, and power device, which aims to enhance battery cycle life [1] - The patent application, published as CN120413988A, was filed on January 2024 and falls under the battery technology sector [1] - The separator membrane includes a substrate layer that consists of a first porous insulating layer and a structure of alkali metal ion exchange resin within the first porous insulating layer, which can effectively improve the battery's cycle life [1] Group 2 - CATL was established in 2011 and is located in Ningde City, primarily engaged in the manufacturing of electrical machinery and equipment [1] - The company has a registered capital of approximately 440.34 million RMB [1] - According to data from Tianyancha, CATL has invested in 137 companies, participated in 504 bidding projects, and holds 658 trademark records along with 5,000 patent records, in addition to having 985 administrative licenses [1]