Aspen Aerogels. has been granted a patent for a method to produce nanoporous carbon-based scaffolds, specifically carbon aerogels. The invention includes a silicon-doped anode material for lithium-ion batteries, featuring polyimide-derived carbon aerogel beads that accommodate silicon expansion during lithiation, enhancing battery performance. GlobalData’s report on Aspen Aerogels 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 Aspen Aerogels, Vinyl resin foam was a key innovation area identified from patents. Aspen Aerogels's grant share as of July 2024 was 37%. Grant share is based on the ratio of number of grants to total number of patents.
Carbon aerogels for lithium-ion battery anode materials
The patent US12034151B2 outlines a method for producing a porous carbon composition in bead form, which involves several key steps. Initially, an organogel precursor is provided in an organic solvent, followed by the initiation of gelation to create an organogel sol. This sol is then combined with a non-miscible medium under high-shear conditions to form droplets, which are subsequently isolated and dried to yield porous organogel beads. The final step involves pyrolyzing these beads to produce the desired porous carbon composition, characterized by a porosity ranging from 10% to 90%. The method allows for the incorporation of specific materials, such as polyamic acids and multifunctional amines, to enhance the properties of the resulting carbon composition.
Further claims detail the specific components and conditions that can be utilized in the process. For instance, the organogel precursor can include various tetracarboxylic acids and diamines, with options for chemical or thermal imidization. The organic solvent may consist of compounds like N,N-dimethylacetamide or tetrahydrofuran, and the medium used for droplet formation can be mineral oil or silicone oil, among others. The method also allows for the addition of surfactants and low-viscosity solvents to optimize the process. Notably, the resulting porous carbon composition can also incorporate silicon, with claims specifying that the silicon content can exceed 10% by weight, contributing to a unique pore structure that enhances its functional properties.
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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.
