Tesla had 30 patents in batteries during Q4 2023. Tesla Inc has filed patents for methods of manufacturing intermittently coated dry electrodes, preparing dry cathode electrode films with reduced binder content, manufacturing energy storage devices without tabs connecting the electrode jellyroll to the can, forming multilayer hybrid electrode films for energy storage devices, and creating self-standing calcined elements comprising a cathode active material. These innovations aim to improve the efficiency and performance of energy storage devices such as lithium ion batteries. GlobalData’s report on Tesla gives a 360-degreee 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 36% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Intermittently coated dry electrode for energy storage device and method of manufacturing the same (Patent ID: US20230420643A1)
The patent filed by Tesla Inc. proposes methods for manufacturing intermittently coated dry electrodes for energy storage devices. The method involves combining a metal layer with an electrochemically active free-standing film formed of a dry active material, and then removing a portion of the film to create intermittent coating on the metal layer in a longitudinal direction. The patent also describes a laminator roll assembly for implementing this method, where rollers are used to receive the combined layer, form intermittently arranged film portions on the metal layer, and output the final product with the metal layer exposed by the intermittent film portions.
The laminator roll assembly consists of two roller assemblies, with the first assembly creating a first laminated layer by intermittently arranging film portions on one side of the metal layer, and the second assembly adding a second laminated layer with film portions on the opposite side. The patent includes claims detailing the configuration of the rollers, the spacing of film portions, and the formation of asymmetric or symmetric intermittent double-side coated dry laminates. The assembly allows for the continuous manufacturing of dry electrodes for energy storage devices, with the potential for customization in terms of film spacing and coating symmetry.
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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.
