Polymer Electrolyte Comprising at Least One Organic Solvent and at Least One Aromatic Ionomer and Uses Thereof

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent discloses a novel polymer electrolyte material that incorporates at least one organic solvent (with high boiling point and electrochemical stability) and at least one specially designed aromatic ionomer, which has alternating ionic and nonionic molecular segments. The result is a nanostructured membrane that offers high single-ion conductivity, excellent thermal and electrochemical stability, and improved safety for use in batteries—specifically for lithium, sodium, or magnesium-based batteries. The material can replace conventional flammable liquid electrolytes, enabling safer high-energy batteries with stable lithium or other metal anodes.

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

• Polymer electrolyte membranes in lithium metal batteries, improving safety and performance.
• Electrolyte materials for sodium-ion, magnesium-ion, and lithium-ion polymer batteries.
• Battery systems for electric vehicles (EVs) and hybrid vehicles requiring high energy density and safety.
• Stationary energy storage solutions for renewable energy integration.
• Portable electronics (smartphones, laptops, etc.) with safer, longer-lasting batteries.
• Electrodes for use in high-voltage battery chemistries including NCA, NCM, LFP, and lithium metal anodes.
• Safe rechargeable batteries in applications where fire resistance is critical, such as in aerospace, medical, or defense equipment.

BenefitsContent extracted from patent full text and abstract with AI.

• Non-flammable and improved safety over conventional liquid electrolytes, significantly reducing risk of thermal runaway and fires.
• Enables stable, high-efficiency cycling of lithium metal and other high-energy anodes, supporting higher energy densities.
• High ionic conductivity (approaching 10⁻³ S/cm at room temperature), which matches or exceeds conventional liquid electrolytes.
• Excellent anodic/electrochemical stability (window up to ~5V), supporting high-voltage and high-energy cathodes without decomposition.
• Suppresses lithium dendrite formation, preventing short circuits and increasing battery lifespan and safety.
• Customizable polymer composition (block copolymer design) enables tuning of mechanical, thermal, and electrochemical properties.
• Retards solvent evaporation and chemical degradation, making the electrolyte more robust in operation.
• No corrosion observed on common current collectors (e.g., aluminum) up to 5 V, improving practical applicability.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The present invention relates to a polymer electrolyte comprising at least one organic solvent and at least one aromatic ionomer,wherein:- the organic solvent is a plasticizing solvent with a boiling point higher than 100°C and an electrochemical stability window of at least 2 V,- the aromatic ionomer comprises alternating ionic and nonionic segments; said aromatic ionomer comprising:• at least nonionic aromatic repeating units UAr1, and• at least one ionic repeating unit UI1 of formula (I).