Eni has patented an energy storage device, like a super capacitor, for high temperature use. The device includes current collector elements with a carbonaceous matrix doped with transition metal compounds, allowing for both electric double layer and faradic mechanisms for energy storage. GlobalData’s report on Eni 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 Eni, Microscale biofuel reactors was a key innovation area identified from patents. Eni's grant share as of February 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.
High temperature super capacitor with faradic mechanism
A recently granted patent (Publication Number: US11923139B2) discloses a novel device comprising current collector elements coated with a composite material consisting of a carbonaceous matrix and a polymeric binder capable of withstanding temperatures up to 200°C without degradation. The carbonaceous matrix, based on graphene and doped with transition metal dichalcogenides, is a 3D-multilayer structure formed through a hydrothermal treatment. The device is filled with a non-aqueous electrolyte composition containing cations and anions in a liquid medium of high boiling temperature solvents and ionic liquids, ensuring stability at temperatures exceeding 150°C.
Furthermore, the device can be configured as a supercapacitor, with multiple current collector elements serving as positive and negative electrodes, connected by electrical conductors and separated by a porous separator made of a thermally stable polymer, ceramic, or glass. The device can be assembled into a multilayer structure, sealed with a polymer or resin, and designed as a coin cell or pouch cell, with the option of using a photo-curable resin for sealing. The innovative design and materials used in this device offer enhanced performance and stability, making it a promising solution for electric energy storage applications requiring high-temperature operation and efficient electrolyte management.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.
