ENEOS. has been granted a patent for a synthetic graphite material characterized by specific crystallite sizes, surface area, oil absorption, and electron spin resonance properties. The material’s crystallite size ranges from 4 to 30 nm, with defined parameters for surface area and spectral characteristics. GlobalData’s report on ENEOS 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 ENEOS, Hydrocarbon redistribution reaction catalysts was a key innovation area identified from patents. ENEOS's grant share as of June 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.
Synthetic graphite material with specific crystallite and absorption properties
The granted patent US12043548B2 outlines a synthetic graphite material characterized by specific physical and chemical properties. The claims detail that the crystallite size in the c-axis direction ranges from 4 to 30 nm, with a surface area of 0.22 to 1.70 m²/cm³ as measured by laser diffraction. Additionally, the material exhibits an oil absorption capacity between 67 to 147 mL/100 g. The electron spin resonance spectrum of the carbon in the material falls within 3200 to 3410 gauss, and the line width (?Hpp) of this spectrum at 4.8K is specified to be between 41 to 69 gauss. These parameters suggest a finely tuned synthetic graphite suitable for various applications.
The patent also describes a method for producing this synthetic graphite material, which includes several steps. Initially, a raw material oil composition undergoes a delayed coking process to generate a coking coal composition, which is then pulverized to obtain coking coal powder. This powder is subjected to heat treatment to produce graphite powder, followed by further pulverization. The method may also involve a hydrodesulfurization step using a catalyst with specific pore diameters, mixing the resulting first heavy oil with a second heavy oil to create the raw material oil composition, with the first heavy oil constituting 15% to 80% by mass. Furthermore, the synthetic graphite material is utilized in a negative electrode for lithium-ion secondary batteries, which are also claimed in the patent.
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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.
