QuantumScape has been granted a patent for managing pressure in electrochemical devices. The invention involves a container with battery modules containing lithium metal negative electrodes or solid-state separator electrolytes. A pressure sensor and compressible element maintain isostatic pressure on the cells, reducing energy losses. 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 February 2024 was 39%. Grant share is based on the ratio of number of grants to total number of patents.
Pressure management system for electrochemical devices
A recently granted patent (Publication Number: US11923516B2) discloses a container design for a battery module that includes one or more electrochemical cells with a lithium metal negative electrode or a thin film solid-state separator electrolyte. The container features a pressure sensor and a compressible element, such as gas or liquid, to maintain an isostatic pressure on the cells. The pressure sensor communicates with a controller to monitor and adjust the pressure within the container. Additionally, the patent includes claims related to a method for pressurizing or de-pressurizing a battery system based on sensed pressure, battery metrics, and comparison values to determine the state of health (SOH) of the system.
Furthermore, the patent claims cover various aspects of the method, including optimizing power performance by adjusting pressure levels, factoring in existing pressure, and considering battery metrics like voltage, impedance, and temperature. The method also involves reducing power availability in case of abnormal conditions by communicating instructions to the driver or a controller to adjust pressure on the electrochemical cells. Additionally, the method outlines procedures for de-pressurizing the system, potentially leading to a shutdown if necessary, and includes provisions for communicating with relevant stakeholders like drivers, OEMs, or maintenance operators to actuate compressible elements for depressurization. Overall, the patent aims to enhance the safety and efficiency of battery systems in electric vehicles through innovative container design and pressure management techniques.
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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.
