1-Ethyl-3-methylimidazolium dicyanamide, CAS: 370865-89-7

Key Applications:

Zn–Air Battery Electrolytes

EMIM‑DCA is a high‑conductivity ionic liquid increasingly incorporated into next‑generation Zn–air battery electrolytes. Its physicochemical properties support improved zinc plating behavior, enhanced oxygen electrocatalysis, and extended cell lifetime in both primary and rechargeable Zn–air systems.

Electrolyte Function and Ion Transport

• Provides high ionic conductivity and low viscosity relative to many ionic liquids, enabling efficient Zn²⁺ transport through the electrolyte.
• The dicyanamide anion forms dynamic coordination complexes with Zn²⁺, stabilizing solvated zinc species and reducing the likelihood of dendritic zinc growth during cycling.
• Supports uniform zinc deposition at the anode, improving reversibility in rechargeable Zn–air configurations.

Air Cathode Performance

• Enhances oxygen reduction and evolution kinetics (ORR/OER) by improving mass transport and reducing polarization at the air electrode.
• Compatible with bifunctional air catalysts including MnOₓ, Co₃O₄, perovskites, and nitrogen‑doped carbons due to its wide electrochemical stability window.

Carbonation Resistance and Electrolyte Stability

• Avoids CO₂‑driven carbonate formation, a major degradation pathway in alkaline aqueous Zn–air electrolytes.
• Maintains electrolyte clarity, electrode wettability, and long‑term ionic mobility under ambient air exposure.

Hybrid and Advanced Electrolyte Architectures

• Used in ionic‑liquid/aqueous hybrid electrolytes to balance conductivity, viscosity, and zinc stability.
• Compatible with organic co‑solvent systems for enhanced low‑temperature performance.
• Incorporated into gel polymer electrolytes and ionogels for flexible, leakage‑resistant Zn–air devices.

Application Domains

• Long‑duration energy storage systems requiring stable zinc cycling.
• Wearable and flexible Zn–air batteries using gel or hybrid electrolytes.
• High‑power microbatteries where low viscosity and high Zn²⁺ mobility are critical.
• Research‑grade rechargeable Zn–air cells exploring dendrite suppression and improved ORR/OER kinetics.

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