Varta has filed a patent for a secondary lithium-ion cell with a unique electrode-separator assembly design. The cell includes an anode and cathode with ribbon-shaped current collectors loaded with electrode material. The design aims to improve cell performance and efficiency. GlobalData’s report on Varta gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Varta, Hydrogen storage alloys was a key innovation area identified from patents. Varta's grant share as of January 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.
Secondary lithium-ion cell with ribbon-shaped anode and cathode
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The patent application (Publication Number: US20240006654A1) describes a secondary lithium-ion cell with specific features aimed at enhancing performance and efficiency. The cell includes an electrode-separator assembly in a winding form with an anode, cathode, and separator arranged in a specific sequence. The anode and cathode are designed with ribbon-shaped current collectors loaded with negative and positive electrode materials, respectively. The cell also features a metallic contact element in direct contact with the longitudinal edge of the current collectors, enhancing connectivity and performance. Additionally, the negative electrode material in the anode comprises metallic lithium, providing specific advantages to the cell's operation.
Furthermore, the patent application details various aspects of the cell's composition, including the structure of the negative electrode material, the porosity and diameter of the matrix, the presence of carbon and other fillers, and the composition of the positive electrode material. The electrolyte composition is also specified, with variations in the mixture of solvents and conducting salts to optimize the cell's performance. The application covers a wide range of electrolyte compositions, conducting salts, and their concentrations, highlighting the importance of these factors in the overall functioning of the lithium-ion cell. Overall, the patent application presents a comprehensive overview of the design and composition of a secondary lithium-ion cell with specific features aimed at improving efficiency and performance.
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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.
