A123 Systems has been granted a patent for a method to create a lithium iron phosphate electrochemically active material for use in electrodes in energy storage devices. The method involves mixing specific sources, milling, drying, and firing to produce the material with vanadium and cobalt dopants. GlobalData’s report on A123 Systems 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 A123 Systems, Battery management systems was a key innovation area identified from patents. A123 Systems's grant share as of February 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.
Lithium iron phosphate material for electrode in energy storage device
A recently granted patent (Publication Number: US11916185B2) discloses a method for producing lithium iron phosphate electrochemically active material for use in electrodes in electrochemical energy storage devices. The method involves mixing various sources including trivalent vanadium dopant, lithium source, carbon source, and iron phosphate source in a solvent to form a slurry, followed by milling, drying, and firing to obtain the desired material. The resulting material contains trivalent vanadium dopant and/or cobalt co-dopant partially substituting the iron in the crystal lattice structure, with specific molar ratios and characteristics.
Furthermore, the patent claims specify the characteristics of the lithium iron phosphate electrochemically active material produced using this method, including surface area, tap density, charge capacity, discharge capacity, and the composition of dopant sources. The method also ensures low temperature performance of the material, with defined resistance values at -20°C. The patent outlines the specific steps and conditions required to achieve the desired properties in the lithium iron phosphate material, making it suitable for use in high-performance energy storage devices.
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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.
