Sogefi has patented a plastic battery unit for hybrid/electric vehicles, with cells grouped into modules. The unit regulates cell temperature using a heat-transfer fluid circulated through the housing, which includes distribution/collection means built into the tray. This design enhances battery performance and longevity. GlobalData’s report on Sogefi 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 Sogefi, was a key innovation area identified from patents. Sogefi's grant share as of February 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Battery unit with plastic housing and heat-transfer fluid circulation

Source: United States Patent and Trademark Office (USPTO). Credit: Sogefi SpA

A recently granted patent (Publication Number: US11901536B2) discloses a unique battery unit design comprising a housing made of plastic material with a molded bottom tray and a top cover assembled together. The innovative feature of this battery unit lies in the means for regulating the temperature of the battery cells or elements through the circulation of heat-transfer fluid. The bottom tray incorporates structural elements for distributing, collecting, and circulating the heat-transfer fluid, including ducts for supplying and collecting the fluid. The design also includes a circuit for fluid circulation on the bottom tray, subdivided into portions associated with different modules, enhancing the efficiency of temperature regulation. Additionally, the internal portions of the bottom tray walls are designed to have high thermal conductivity, ensuring effective heat transfer to the cells or elements.

Furthermore, the patent details the incorporation of reinforcing structures within the body of the bottom tray, providing additional support and stability to the battery unit. The design also includes a means for controlling the temperature, circulation, and distribution of the heat-transfer liquid, enhancing the overall performance and safety of the battery unit. Additionally, internal temperature measurement means, electrical connections for the cells or elements, and external connection means are integrated into the housing, further improving the functionality and usability of the battery unit. Overall, the patented battery unit design offers a comprehensive solution for efficient temperature regulation and enhanced performance in a plastic housing, making it a significant innovation in the field of battery technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.