Aspen Aerogels had 19 patents in batteries during Q4 2023. Aspen Aerogels Inc filed patents for nanoporous carbon-based scaffolds for lithium-air batteries and aerogel-based components for electric vehicle thermal management. The carbon aerogel cathode in the battery improves oxygen transport properties and lithium peroxide formation. The reinforced aerogel compositions for thermal management have favorable performance, insulation properties, and fire-resistance, with silica-based aerogel framework reinforced with fiber and opacifying additives. GlobalData’s report on Aspen Aerogels gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Aspen Aerogels grant share with batteries as a theme is 15% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Carbon aerogel-based cathodes for lithium-air batteries (Patent ID: US20230387509A1)
The patent filed by Aspen Aerogels Inc. pertains to nanoporous carbon-based structures, specifically carbon aerogels, designed for use as cathode materials in lithium-air batteries. These carbon aerogels have pores that enhance oxygen transport properties and facilitate the formation of lithium peroxide, optimizing the performance of the cathode within the battery. The interconnected carbon structures in the composition define pores with specific size distributions, surrounding particles of an electrochemically active species such as lithium or lithium peroxide. The composition may also include catalyst and scavenger species to reduce side reactions, and surface modification layers to favor the formation and confinement of Li2O2.
The nanoporous carbon composition described in the patent has specific characteristics such as a pore size distribution with an average size of 150 nm or less, a Young's modulus ranging from 2 GPa to 8 GPa, and a density between 0.1 cm3/g and 1.5 cm3/g. The composition may further include MoS2 nanoflakes, have a porosity of 10% to 80%, and a surface area of at least 20 m2/g. Additionally, the composition can be in the form of a monolithic structure or a powder, with interconnected carbon structures exhibiting a fibrillar morphology. The patent also extends to energy storage systems incorporating electrodes made from the nanoporous carbon composition, including collector-less battery electrodes with direct contact tabs or metal leads for improved performance.
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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.
