TDK had 190 patents in batteries during Q4 2023. The TDK Corp filed patents for electrodes for power storage devices with unique structures, including resin layers, conductive layers, and active material layers. They also patented an electrochemical apparatus with a specific package housing design and an electrochemical apparatus with a positive electrode containing lithium cobalt oxide. Additionally, a power management device patent was filed for cell balancing in storage batteries connected to a DC bus. GlobalData’s report on TDK gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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TDK grant share with batteries as a theme is 39% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Electrode for power storage devices and lithium-ion secondary battery (Patent ID: US20230361313A1)
The patent filed by TDK Corp describes an electrode for power storage devices that includes a resin layer, an electrically-conductive layer, and a layer of particles. The electrically-conductive layer has a specific shape with protrusions and recesses, and the distance between the top points of the protrusions and the bottom of the recess is smaller than the thickness of the resin layer. The electrode design aims to improve the performance and efficiency of power storage devices by enhancing the conductivity and structure of the electrode.
Furthermore, the patent includes various claims related to the specific features of the electrode design, such as the shape of the electrically-conductive layer, the presence of particles between recesses, the configuration of concave regions on the resin layer, and the composition of the layers. The claims also detail parameters such as gap dimensions, protrusion characteristics, and material thicknesses to ensure optimal performance of the electrode in power storage devices. Overall, the patent focuses on innovative electrode structures to enhance the functionality and efficiency of power storage devices, particularly in lithium-ion secondary batteries.
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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.
