Brookfield has been granted a patent for an electrical storage device featuring high surface area fibers coated with various forms of carbon. The invention includes electrodes designed for use in electrochemical batteries and capacitors, enhancing performance through specialized fiber structures. GlobalData’s report on Brookfield 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 Brookfield, was a key innovation area identified from patents. Brookfield's grant share as of July 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Electrode with carbon-coated high surface area fibers
The granted patent US12062794B2 outlines a novel electrode design that incorporates a charge collector made from a mat of fibers. These fibers are composed of various forms of carbon, including graphite, activated carbon, and carbon nanotubes, and are specifically selected for their trilobal and quadrilobal cross-sectional shapes. Each fiber's structure features a radial section and an end section that extends orthogonally, enhancing the electrode's performance. The fibers are loaded with electrode active material and can range in diameter from approximately 1 micron to 100 microns. The mat can be constructed as either a woven or non-woven mesh, designed to support and adhere to the active material effectively.
Additionally, the patent describes a lead-acid battery that utilizes this innovative electrode configuration. The battery consists of both positive and negative electrodes housed with an electrolyte, where the negative electrode employs the aforementioned fiber mat. The design includes a separator between the electrodes and emphasizes the use of shaped or microfiber materials, which can be derived from various polymers such as polyester and polypropylene. The configuration of the fibers is intended to optimize charge acceptance, thereby potentially improving the overall efficiency and performance of the battery system.
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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.
