A123 Systems has been granted a patent for a bipolar battery that utilizes a solid ionically conductive polymer as its electrolyte, facilitating high voltage discharge. The battery features distinct positive and negative electrodes, along with multiple electrolyte layers containing specific ionic compounds and diffusing ions. GlobalData’s report on A123 Systems 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 A123 Systems, Battery management systems was a key innovation area identified from patents. A123 Systems's grant share as of July 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.
Bipolar battery with solid polymer electrolyte for high voltage
The patent US12074274B2 describes a novel battery design that incorporates a positive electrode and a negative electrode, each containing distinct electrochemically active materials. Central to this innovation is the use of one or more electrolyte layers made from a solid ionically conductive polymer material. This polymer composition includes a polymer, a dopant, and an ionic compound, featuring both cationic and anionic diffusing ions. The claims detail various configurations of the battery, including sub-stacks that enhance voltage management and the integration of solid ionically conductive polymer materials within the electrodes themselves.
Further specifications highlight the properties of the solid ionically conductive polymer, such as its crystallinity, ionic conductivity, and melting temperature, which are critical for battery performance. The patent also outlines the potential materials for the electrochemically active components, including various lithium compounds and manganese dioxide. Additionally, the electrolyte layers can be formed as films of specific thicknesses, and the dopants used in the polymer can include a range of chemical compounds. This comprehensive approach aims to improve the efficiency and functionality of batteries, potentially leading to advancements in energy storage technology.
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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.
