Electrochemical Storage Material and Electrochemical Storage Device for Storing Electrical Energy, Comprising Such a Storage Material

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The invention relates to a new type of electrochemical storage material for high-temperature energy storage systems. Unlike traditional materials, this storage material includes an active component (such as a metal or metal oxide) that, during charge and discharge cycles, can be chemically integrated into a specially designed reactive framework structure. This framework can be either an oxide or a metal, and it allows the active component to form stable mixed oxides or alloys, preventing degradation and preserving energy storage capacity over many cycles.

Use CasesContent extracted from patent full text and abstract with AI.

• Grid-scale energy storage for balancing renewable energy sources (such as wind and solar)
• Industrial energy storage for applications needing high-temperature capabilities
• High-efficiency batteries or accumulators for backup power systems
• Hybrid energy systems where long-duration, high-temperature storage is required
• Energy storage modules for power plants operating at elevated temperatures
• Electrochemical storage solutions in environments with fluctuating temperatures or oxygen levels

BenefitsContent extracted from patent full text and abstract with AI.

• Very high long-term stability, allowing thousands of charge-discharge cycles with minimal loss of capacity
• Prevents degradation mechanisms common in conventional storage materials (e.g., phase separation, coarsening, migration, or surface blocking)
• Enables faster and more efficient charging and discharging due to optimized structure and porosity
• Adaptable to different operational requirements (high energy density or fast response) through modification of the material's composition or structure
• Compatible with various active components and framework compositions, allowing tailoring to specific temperature and oxygen pressure ranges
• Potentially lower lifecycle costs due to extended material lifespan and stable performance

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Patent Abstract

The invention relates to a storage material for storing electrical energy by reduction or oxidation of an active component, wherein the storage material, in addition to the active component, additionally has a reactive framework structure in at least a reduced and/or oxidized form which is able to chemically integrate at least one form of the active component in the form of a mixed oxide or an alloy into the framework structure during the charging or discharging process. Said integrating can occur in particular in the case of an oxidic framework structure in the forming of at least one stable mixed oxide from the active component and an oxide from the framework structure. In the case of a metallic framework structure, the integrating occurs by forming an alloy from active components and at least one metal of the framework structure. The capability of the framework structure to integrate the active component is dependent on the framework conditions of temperature and oxygen partial pressure.