ElringKlinger has filed a patent for an electrochemical cell designed for simplicity and efficiency. The cell features connection conductors secured to a cover element using potting elements and compensation elements, reducing production effort. This innovation aims to streamline the construction of electrochemical cells for various applications. GlobalData’s report on ElringKlinger 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 ElringKlinger, Hydrogen fuel cells was a key innovation area identified from patents. ElringKlinger's grant share as of January 2024 was 35%. Grant share is based on the ratio of number of grants to total number of patents.

Simplified construction of an electrochemical cell

Source: United States Patent and Trademark Office (USPTO). Credit: ElringKlinger AG

The patent application (Publication Number: US20240039129A1) describes an electrochemical cell for an electrochemical system, consisting of an electrochemical element, a housing, first and second cell terminals, first and second connection conductors. The housing encloses the electrochemical element and includes a cover element. The first and second compensation elements have depressions for potting elements and edge regions surrounding them. The edge regions have degassing openings and are thicker than the compensation sections. The compensation elements are made of polymer materials with electrically conductive fillers like carbon-based materials, metal powders, electrically conductive ceramic materials, and electrically conductive polymer materials.

Furthermore, the patent application details a method for producing the electrochemical cell, involving providing a cover element with openings, positioning connection conductors, creating compensation elements in connection regions, filling resin materials, and drying/curing to form potting elements. The compensation elements can be applied to the cover element through printing processes like screen-printing or dispenser devices, followed by increasing the height of edge regions or embossing compensation sections. The polymer materials used for the compensation elements may contain electrically insulating fillers like silicon dioxide, metal oxides, silicates, and metal nitrides. The method ensures the efficient production of electrochemical cells with improved structural integrity and performance.

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