Bayerische Motoren Werke had 124 patents in batteries during Q4 2023. BMW AG has filed patents for various innovations related to lithium-ion battery cells, storage housings for energy stores in motor vehicles, slot die technology, electric energy stores for vehicles, and cathode active materials for lithium-ion batteries. These innovations aim to improve the efficiency, safety, and cost-effectiveness of energy storage systems in vehicles. GlobalData’s report on Bayerische Motoren Werke gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Bayerische Motoren Werke grant share with batteries as a theme is 30% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Method for producing a lithium-ion battery cell, and lithium-ion battery cell (Patent ID: US20230420811A1)
The patent filed by Bayerische Motoren Werke AG describes a method for producing a lithium-ion battery cell that involves using a connection plate with a higher coefficient of thermal expansion than the connecting pin. The process includes heating the connection plate, inserting the connecting pin, cooling it down to fix the pin in place, passing it through the battery cell housing, and connecting it to the current collector of the negative electrode to establish an electrical connection. The method ensures a secure connection without the need for welding or riveting operations, with the connection plate made of aluminum and the connecting pin of copper.
Furthermore, the lithium-ion battery cell produced by this method features a connection plate on the outer side of the battery cell housing, with a connecting pin connecting the current collector of the negative electrode to the plate. The joint between the plate and the pin does not show any traces of welding or riveting, ensuring a clean and efficient connection. Additionally, the cell may also include a current collector for the positive electrode connected to a further connecting pin, which is integrally formed with a further connection plate, all made of aluminum. This design allows for a reliable and robust lithium-ion battery cell structure suitable for various applications, with the potential for scalability by incorporating multiple cells into a larger battery system.
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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.
