TDK had 198 patents in batteries during Q1 2024. TDK Corp filed patents for an electrochemical apparatus with a negative electrode containing inorganic particles, a laminated body with copper and nickel layers, and electrochemical devices with specific requirements for anode active material and electrolyte composition. The patents also include a laminated body with increasing nickel content along the thickness direction in the second metal layer. GlobalData’s report on TDK gives a 360-degree view of the company including its patenting strategy. Buy the report here.

TDK grant share with batteries as a theme is 35% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Electrochemical apparatus and electronic apparatus (Patent ID: US20240079592A1)

The patent filed by TDK Corp describes an electrochemical apparatus with a negative electrode that includes a current collector, a first coating, and a second coating. The first coating, situated between the current collector and the second coating, contains inorganic particles with a Mohs hardness of 2 to 7. These inorganic particles can include materials like boehmite, aluminum powder, quartz sand, apatite, nanoceramics, or zircon, with a median particle size ranging from 100 nm to 600 nm.

Furthermore, the first coating also includes a conductive agent, a binder, and a dispersant in specific mass ratios. The conductive agent can be zero-dimensional (e.g., conductive carbon black) or one-dimensional (e.g., conductive carbon tube), while the binder and dispersant encompass various materials like polyvinyl alcohol and sodium alginate. The negative electrode's tensile strength, coating weight, cover rate, electronic resistance, and elongation rate are also specified within the patent claims, ensuring the electrode's performance and durability within the electrochemical apparatus.

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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.