Samsung SDI had 511 patents in batteries during Q4 2023. Samsung SDI Co Ltd filed patents in Q4 2023 for a secondary battery with a swelling tape to minimize contact resistance, a separator with a fluorine-containing binder and additive, a battery pack with a sensing substrate, an anode layer for an all-solid-state battery, and a cylindrical secondary battery with an insulator formed through an injection, assembly, and cross-linking process for stable coupling and insulation in high-temperature environments. GlobalData’s report on Samsung SDI gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Samsung SDI grant share with batteries as a theme is 42% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Secondary battery (Patent ID: US20230420744A1)
The patent filed by Samsung SDI Co Ltd. describes a secondary battery design that includes a swelling tape positioned inside the base finish part of the electrode assembly to minimize contact resistance between the base finish part and the cylindrical can, even in the presence of winding radius deviations. The swelling tape is designed to press the base finish part into the can, ensuring efficient electrical contact. The battery also features a cap assembly for sealing the electrode assembly within the can.
The secondary battery design includes specific features such as the positioning of the swelling tape to press the base finish part against the side portion of the can, as well as details regarding the composition of the first electrode plate and the non-coating portion covering the outermost periphery of the electrode assembly. The patent also outlines the use of a swelling tape with an acrylic binder that can absorb electrolyte to swell, along with specific dimensions and configurations for optimal performance. Overall, the design aims to address technical challenges related to contact resistance and winding radius variations in secondary batteries, offering a solution that enhances efficiency and reliability in battery operation.
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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.
