GS Yuasa has been granted a patent for an inspection apparatus designed to detect abnormalities in assembled batteries. The system identifies internal short circuits in energy storage devices by analyzing voltage differences during charge or discharge between the device with the lowest voltage and the one with the second-lowest voltage. GlobalData’s report on GS Yuasa 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 GS Yuasa, Hydrogen storage alloys was a key innovation area identified from patents. GS Yuasa's grant share as of June 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
Inspection apparatus for detecting battery energy storage abnormalities
The patent US12044746B2 describes an inspection apparatus designed for assembled batteries that consist of multiple energy storage devices connected in series. Central to this apparatus is a processor and memory that store instructions enabling the detection of internal short circuits in the energy storage devices. Specifically, the apparatus identifies a first energy storage device with the lowest voltage by analyzing the voltage difference between it and the second-lowest voltage device during charging or discharging processes. The claims outline various methods for determining abnormalities in the first energy storage device, including monitoring voltage differences that exceed predefined threshold values and assessing the duration of these voltage changes.
Additionally, the patent details the application of this inspection apparatus in various contexts, including moving bodies such as ships and stationary battery systems. The inspection apparatus is equipped to notify users of detected abnormalities through error messages displayed on a screen and can also halt charging or discharging operations if an internal short circuit is identified. The claims further elaborate on the dual detection methods employed to ascertain the abnormality of the energy storage device, enhancing the reliability of the inspection process. Overall, this patent presents a comprehensive approach to monitoring the health of energy storage devices within assembled battery systems, contributing to improved safety and performance 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.
