BYD had 409 patents in batteries during Q1 2024. BYD Co Ltd has filed patents for a cylindrical battery design with improved electrode structure, a current collector with through-holes for enhanced performance, a battery pack charging system with a cooling structure, a heat management system with multiple heat exchangers, and a lithium iron phosphate positive electrode material with specific characteristics. GlobalData’s report on BYD gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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BYD grant share with batteries as a theme is 34% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Cylindrical battery and vehicle (Patent ID: US20240106074A1)
The patent filed by BYD Co Ltd describes a cylindrical battery design that includes a housing with an accommodating space and an electrode core formed by winding a negative electrode sheet, a first separator, a positive electrode sheet, and a second separator. The positive electrode sheet consists of a positive electrode material layer and a positive electrode foil layer, while the negative electrode sheet comprises a negative electrode material layer and a negative electrode foil layer. The positive and negative electrode tabs are formed by extending some wound turns of the foil layers towards the ends of the housing, allowing for efficient connection within the battery.
Furthermore, the cylindrical battery design includes features such as positive and negative electrode current collecting discs connected to the respective tabs, along with positive and negative electrode caps. These components are arranged to ensure proper electrical connections within the battery. The patent also details the positioning of the tabs, separators, and connecting portions, emphasizing the structural integrity and functionality of the battery design. Overall, the patent outlines a comprehensive and innovative cylindrical battery configuration suitable for various applications, including electric vehicles, where efficient charging and discharging control is essential.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
