Method for Producing a Material or Component for a Solid-State Battery

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This patent describes an improved method for manufacturing materials and components for solid-state batteries, specifically focusing on sodium-ion conductors like NaSICON. The process uses a sodium source and boric acid (H3BO3) as additives, allowing the synthesis and sintering of key battery components (such as electrodes and separators) at much lower temperatures (600°C to 1300°C, preferably even below 900°C) than traditional methods. This approach reduces energy requirements and simplifies production by enabling certain steps to be combined and removing the need for protective gas atmospheres. The resulting materials retain high ionic conductivity and structural quality for use in solid-state sodium batteries.

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• Manufacturing solid-state sodium batteries for grid-scale energy storage systems.
• Producing safe, high-performance batteries for electric vehicles (EVs).
• Developing next-generation batteries for portable electronics requiring high safety and long cycle life.
• Fabricating battery materials (like NaSICON-based separators and electrodes) at lower cost for industrial battery manufacturers.
• Research and development in advanced solid-state battery materials with enhanced processability.

BenefitsContent extracted from patent full text and abstract with AI.

• Significant reduction in the sintering and synthesis temperature, lowering energy consumption and manufacturing costs.
• Simplification of production steps, enabling single-step synthesis and sintering of battery components such as electrodes and separators.
• Elimination of the need for an inert gas atmosphere (processes can proceed in air), further simplifying manufacturing logistics and infrastructure.
• Production of battery materials with high ionic conductivity and desired crystal structure, essential for solid-state battery performance.
• Enables scalable and more sustainable manufacturing processes for future battery technologies.

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Patent Abstract

The invention relates to a method for producing a material for a solid-state battery and/or a component for a solid-state battery, and to a solid-state battery cell. In the method for producing a material (10) for a solid-state battery (30) and/or a component (20) for a solid-state battery (30), at least one starting material (1), together with a sodium source (2) and H3BO3, is heated (5) to a temperature between 600 °C and 1300 °C. The material and/or the component can be produced using a far lower temperature.