Tesla had 28 patents in batteries during Q1 2024. Tesla Inc filed patents in Q1 2024 for an energy storage device using a polytetrafluoroethylene (PTFE) composite binder material in the cathode and anode, with a ratio of 1:1 PTFE to non-PTFE components. They also patented a method for recovering valuable materials from spent rechargeable lithium batteries, using carbonyl technology to regenerate pure materials for reuse in new lithium batteries. GlobalData’s report on Tesla gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Tesla grant share with batteries as a theme is 57% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Dry energy storage device electrode and methods of making the same (Patent ID: US20240105955A1)
The abstract describes an energy storage device, such as a lithium ion battery, that utilizes a polytetrafluoroethylene (PTFE) composite binder material in the cathode or anode. The composite binder material includes PTFE and components like polyvinylidene fluoride (PVDF), a PVDF co-polymer, or poly(ethylene oxide) (PEO) in a specific ratio. The claims detail a method for fabricating the cathode of the energy storage device, involving combining porous carbon material with the composite binder components, subjecting the mixture to a high shear process, and adding PTFE to form a final mixture. Additional steps include incorporating active materials, conductive carbon additives, and calendering the mixture to create a cathode film. The method also covers assembling the cathode, anode, and separator within a housing to form the energy storage device, which can be a lithium ion battery or capacitor.
Overall, the patent application focuses on a novel approach to constructing energy storage devices using a specific PTFE composite binder material in the cathode or anode. The method outlined in the claims involves a detailed process of combining materials, subjecting them to specific treatments like high shear processes and jet-milling, and assembling the components to create a functional energy storage device. The use of specific components and ratios in the composite binder material is highlighted, along with the incorporation of various active materials and carbon additives to enhance the performance of the device. The application emphasizes the potential for improved efficiency and performance in lithium-based energy storage devices through the innovative fabrication techniques described.
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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.
