Metal-containing Anode Material and Electrochemical Primary Cells Containing the Anode Material and Use of the Compositions

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This invention relates to a metal-containing anode material, particularly for use in electrochemical primary cells with alkaline electrolytes. The key aspect is that the anode material, which includes metals such as silicon, zinc, aluminum, iron, or their alloys, has a surface that is at least partially coated or modified with organofunctional silicon-containing compounds, such as organosilanes or siloxane oligomers. This modification serves to passivate the anode surface, effectively inhibiting or delaying corrosion when used in batteries, thus improving battery life and stability.

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

• Use in manufacturing high-performance primary batteries for consumer electronics, such as hearing aids, watches, and remote controls.
• Application in electric vehicle batteries, where long shelf-life and corrosion resistance are critical.
• Integration in battery-based backup power systems for renewable energy installations.
• Usage in medical device batteries requiring stable and durable power sources.
• Incorporation in military or aerospace battery applications, where reliability and environmental resistance are crucial.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly improves the corrosion resistance of metal anodes in alkaline environments, thereby extending battery lifespan.
• Reduces the rate of material degradation, resulting in improved energy storage and output stability.
• Allows the use of abundant and recyclable materials like silicon, making the technology environmentally friendly and cost-effective.
• Enhances battery safety by limiting unwanted chemical reactions at the anode surface.
• Enables design flexibility, as the surface modification can be tailored for different metals and battery chemistries.

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Patent Abstract

The subject matter of the invention is a metal-containing anode material, in particular for use in electrochemical primary cells with alkaline electrolytes, wherein the metal-containing anode material comprises as metal silicon, zinc, aluminum, iron and/or alloys comprising one or more of the aforementioned metals, and the surface of the metal-containing anode material at least partially comprises organofunctional silicon-containing compounds. Silicon-containing compounds are understood to be organofunctional silanes and organofunctional siloxane oligomers with which the surfaces are provided or can be equipped.