A123 Systems had 27 patents in batteries during Q2 2024. A123 Systems LLC filed patents related to a lithium iron phosphate electrochemically active material for use in electrodes, incorporating vanadium and cobalt dopants. Additionally, they also filed patents for a battery management system with a protection circuit, designed to prevent unexpected switching ON of the cutoff circuit in a vehicle battery system. 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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A123 Systems had no grants in batteries as a theme in Q2 2024.
Recent Patents
Application: Nanoscale pore structure cathode for high power applications and material synthesis methods (Patent ID: US20240162477A1)
The patent filed by A123 Systems LLC discloses a lithium iron phosphate electrochemically active material for use in an electrode, which includes a dopant comprising vanadium and optionally a co-dopant comprising cobalt. The electrochemical energy storage device described in the claims includes a positive electrode with an electrochemically active material layer comprising the lithium iron phosphate material doped with vanadium and cobalt, with specific molar ratios of non-lithium metal to phosphate. The device also includes a negative electrode, an ionic electrolyte solution, and a porous separator for electrical isolation.
Furthermore, the patent claims specify the pore structure of the lithium iron phosphate material, emphasizing a bimodal pore size distribution with specific pore volumes at certain pore widths. The synthesis of the material from an iron phosphate source and a trivalent vanadium dopant source sharing a common anion is also highlighted. Additionally, the claims detail the trivalent state of vanadium and its contribution through oxyanion species like vanadium phosphate or ammonium metavanadate. Overall, the patent aims to protect the unique composition and structure of the lithium iron phosphate electrochemically active material for enhanced performance in electrochemical energy storage devices.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
