Northvolt has been granted a patent for a secondary cell design with end plates, current collectors, and spacer arrangements to secure the electrode assembly in multiple directions. The innovative method for assembling such cells enhances electrical contact and structural stability. GlobalData’s report on Northvolt 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 Northvolt, Hydrogen storage alloys was a key innovation area identified from patents. Northvolt's grant share as of February 2024 was 25%. Grant share is based on the ratio of number of grants to total number of patents.
Secondary cell with improved electrode assembly securing mechanism
A recently granted patent (Publication Number: US11888182B2) discloses a secondary cell design comprising an electrode assembly housed within a casing. The casing includes a body, a first end plate, and a second end plate, with the first end plate featuring a first current collector connected to a first terminal of the cell, and the second end plate housing a second terminal. The first end plate is equipped with a contacting tab for electrical contact between the anode electrode and the first current collector, along with a first spacer arrangement securing the electrode assembly in the body's length direction. Similarly, the second end plate includes a second current collector for the cathode electrode, attached to the second tab to secure the assembly orthogonally to the body's length direction, along with a second spacer arrangement for lengthwise security.
Furthermore, the patent details a method for assembling the secondary cell, involving the insertion of the electrode assembly through the body's second open end, attachment of the contacting tab to the anode electrode and first current collector, and arrangement of spacer elements to secure the assembly. The method also includes attaching the second current collector to the cathode electrode, ensuring electrical contact and orthogonal alignment, and positioning the contacting tab for connection to the first current collector. Additional steps involve insulating the contacting tab from the casing's sidewall and sealing the first end plate to the casing's rim. The patent emphasizes the structural and functional aspects of the secondary cell design, highlighting the innovative features aimed at enhancing performance and efficiency in energy storage applications.
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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.
