Structured Metal Electrode and Its Combination with Non-Liquid Electrolyte

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This patent describes a structured metal electrode or current collector for batteries and energy storage devices. The electrode surface is engineered with an array of small, blind-hole-like recesses that are filled and coated with a solid polymer electrolyte instead of a liquid. This structural and material combination reduces resistance during metal deposition and increases the overall surface area, especially when used with lithium or other alkali metals. The method for making the electrode is scalable using roll-to-roll manufacturing techniques, and the resulting component is suitable for use in a variety of solid-state or hybrid batteries and capacitors, particularly enhancing the performance and safety of lithium-based cells.

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• Next-generation lithium metal batteries for electric vehicles and portable electronics
• Solid-state batteries requiring improved safety and longer lifespan
• Hybrid batteries and supercapacitors with high energy and power densities
• Industrial or grid-scale energy storage systems demanding high cycle stability
• Wearable or flexible electronic devices needing thin, safe, and efficient batteries
• Medical devices where battery safety and reliability are critical

BenefitsContent extracted from patent full text and abstract with AI.

• Significant reduction in interfacial resistance and overpotential in metal deposition, improving energy efficiency
• Enhanced cycling stability and extended battery lifespan due to improved electrode/electrolyte interface
• Greater safety, especially for lithium-based batteries, as non-liquid electrolytes reduce risks of leakage, dendrite growth, and thermal runaway
• Scalable and cost-effective manufacturing via roll-to-roll processes suitable for mass production
• Compatibility with various metals (e.g., lithium, sodium, magnesium, zinc), allowing for flexibility in battery chemistry
• Supports thinner and lighter batteries with higher energy and power densities
• Facilitates uniform metal deposition, mitigating safety hazards like dendrite formation

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Patent Abstract

The invention relates to a metal electrode or current collector for an energy store, wherein the surface of the electrode or of the power collector comprises a plurality of blind hole-like recesses, which are spaced apart from each other, the surface structured in this way being coated with a solid polymer electrolyte, the recesses being filled with the solid polymer electrolyte. The invention further relates to a primary or secondary energy store comprising same.