Core Viewpoint - Contemporary Amperex Technology Co., Limited (CATL) has applied for a patent related to perovskite solar cells, indicating a focus on enhancing photovoltaic technology and efficiency [1] Company Overview - 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 4.4 billion RMB [1] - CATL has invested in 142 companies and participated in 571 bidding projects [1] - The company holds 658 trademark registrations and 5000 patent records, along with 1011 administrative licenses [1] Patent Details - The patent application titled "Perovskite Solar Cell and Its Preparation Method, Photovoltaic Module, Power Generation Device, and Power Consumption Device" was published with the number CN 121013546 A, and the application date is May 2024 [1] - The perovskite solar cell design includes a first electrode and a second electrode, with a perovskite layer and an electron transport layer arranged in sequence between them, which enhances light conversion efficiency [1]

Core Insights - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a negative electrode sheet, secondary battery, electric device, and hard carbon material along with its preparation method, with the application number PCT/CN2024/118333 and international publication date set for November 6, 2025 [1][2]. Patent Details - The patent application was submitted on September 11, 2024, and is classified under several international patent classification codes including H01M 4/133 and H01M 10/0525 [2]. - The negative electrode sheet includes a current collector and a film layer made of hard carbon material, which consists of a core and a carbon coating layer. The core is made of porous carbon with specific pore volume and adsorption capacity requirements [2]. R&D Investment and Patent Activity - In 2023, CATL has published a total of 1,280 international patent applications, marking a 20.41% 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, reflecting a year-on-year increase of 17.48% [1].

Core Insights - Contemporary Amperex Technology Co., Limited (CATL) has filed 1,174 international patent applications this year, representing a 22.8% increase compared to the same period last year [2] - The company invested CNY 10.095 billion in research and development in the first half of the year, which is a year-on-year increase of 17.48% [2] Patent Details - The patent application titled "Battery and Preparation Method Therefor, and Electric Device" includes specifications on the composition of the battery, highlighting a water mass proportion of 50 ppm to 300 ppm for the positive electrode and 30 ppm to 200 ppm for the negative electrode [1] - The electrolyte in the battery comprises a first lithium salt, specifically LiN(SO2R)2, with a mass proportion of 3% to 10% based on the total mass of the electrolyte, indicating a focus on enhancing cycle life [1] Company Overview - CATL is based in Ningde, Fujian Province, China, and is recognized for its advancements in battery technology and electric devices [1] - The company is actively expanding its intellectual property portfolio, which is crucial for maintaining a competitive edge in the rapidly evolving battery industry [2]