QuantumScape. has filed a patent for a method using ultrasonic vibration to apply energy to a metal negative electrode in a rechargeable battery during charging. The method involves vibrating the electrode while charging the cell simultaneously. GlobalData’s report on QuantumScape 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 QuantumScape, Hydrogen storage alloys was a key innovation area identified from patents. QuantumScape's grant share as of January 2024 was 38%. Grant share is based on the ratio of number of grants to total number of patents.
Ultrasonic vibration of metal negative electrode during battery charging
A patent application (Publication Number: US20240039055A1) describes a method for ultrasonically vibrating a metal negative electrode in an electrochemical cell. The method involves vibrating the metal negative electrode while simultaneously charging the cell. The charging process occurs at various temperatures ranging from -30°C to 80°C, and the metal negative electrode can be lithium, sodium, or zinc. The solid electrolyte used can be sulfide-based, garnet-based, or borohydride-based. Additionally, pressure can be applied to the metal negative electrode during the process.
Furthermore, the patent application details a method for charging a battery with a metal negative electrode by vibrating the battery at ultrasonic frequencies and charging it concurrently. Pressure can also be applied to the metal negative electrode during this process. The charging current can vary, and various parameters such as voltage, current, impedance, resistance, pressure, temperature, evolved gases, or physical deformations can be measured. The application also mentions the use of the method in creating electrochemical cells with lithium-metal negative electrodes and their application in batteries, cars, and other devices.
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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.
