CCL Industries has been granted a patent for flexible multi-battery assemblies and manufacturing methods. The assembly includes a first current collector parsed into portions, a second current collector, and electrochemically active stacks forming flexible cells. The design allows for direct electrical and mechanical connections. GlobalData’s report on CCL Industries gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on CCL Industries, Pressure Sensitive Adhesive Tape was a key innovation area identified from patents. CCL Industries's grant share as of March 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Flexible multi-battery assembly with exposed current collectors

Source: United States Patent and Trademark Office (USPTO). Credit: CCL Industries Inc

A recently granted patent (Publication Number: US11961972B1) discloses a flexible multi-battery assembly designed with a unique structure. The assembly comprises a first current collector and a second current collector, with a plurality of electrochemically active stacks sandwiched between them. Each electrochemically active stack consists of a positive active material layer, an electrolyte layer, and a negative active material layer. The second current collector acts as a continuous structure supporting the electrochemically active stacks, which are flexible and directly contact the first current collector portions. Additionally, a boundary insulator surrounds each electrochemically active stack, providing support and structure to the overall assembly.

Furthermore, the flexible multi-battery assembly includes an insulator layer adhered to the first outer surface, with insulator openings allowing exposure of portions of the second inner surface. The thickness of the assembly is less than 400 micrometers, making it extremely thin and flexible. The electrolyte layer within each electrochemically active stack is printed and may contain an ionic liquid with specific conductivity characteristics. The negative active material layer predominantly consists of elemental zinc, ensuring efficient battery performance. Overall, the patented design offers a compact, flexible, and structurally sound multi-battery assembly suitable for various applications requiring lightweight and bendable power sources.

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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.