Hydro-Quebec has filed a patent for a method using ultrasonic vibration to cut soft metals for manufacturing electrochemical storage devices like lithium batteries. The method involves cutting components like anodes, cathodes, and separators. The patent claim focuses on using a cutting tool with ultrasonic vibration for manufacturing lithium-based components. GlobalData’s report on Hydro-Quebec 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 Hydro-Quebec, Hydrogen storage alloys was a key innovation area identified from patents. Hydro-Quebec's grant share as of January 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.
Ultrasonic cutting tool for manufacturing lithium battery components
The patent application (Publication Number: US20240001464A1) describes a method and system for manufacturing an electrochemical storage device with components containing lithium material. The method involves using a cutting tool with cutting blades set in motion by ultrasonic vibration to cut the components, which can include negative electrodes, positive electrodes, solid electrolytes, current collectors, and separators. The cutting tool may include blades adapted for guillotine motion, razor blades, diamond blades, steel blades, tungsten carbide blades, or a combination of these. Additionally, the method may include steps such as stacking components, resizing, extrusion, re-dimensioning cells, or stacking two-sided cells.
Furthermore, the system for characterizing the electrochemical storage device includes a cutting tool with cutting blades set in motion by ultrasonic vibration, a microscope, and a measuring device. The cutting tool may be coupled to an ultrasonic generator for efficient cutting. The patent also covers the electrochemical storage device itself, such as lithium batteries, entirely solid lithium batteries, lithium-ion batteries, or cells, obtained through the described manufacturing method. The cutting tool used in the method may have blades with high hardness, heat-treated surfaces, wear-resistant materials, or electrically insulating materials to ensure precise cutting and manufacturing of the components.
To know more about GlobalData’s detailed insights on Hydro-Quebec, buy the report here.
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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.
