The Need

Next-generation lithium- and metal-based batteries require higher energy density, which depends on operating at elevated voltages. However, conventional electrolyte salts suffer from limited electrochemical stability, low solubility, and degradation issues such as aluminum current collector corrosion at high voltages. These limitations constrain performance, safety, and lifetime. There is a critical need for electrolyte systems that maintain stability under extreme conditions while enabling high salt concentrations, improved conductivity, and compatibility with advanced battery chemistries.

The Technology

OSU researchers have developed a novel family of asymmetric electrolyte salts designed to enable highly concentrated, high-performance electrolyte formulations. The molecular architecture provides exceptional solubility and allows electrolyte properties to be tailored for specific battery applications. These electrolytes demonstrate enhanced stability under demanding electrochemical conditions and improved compatibility with key battery components. The platform approach creates opportunities to optimize performance across multiple battery chemistries while leveraging scalable synthetic routes and widely available starting materials.

Commercial Applications

• High-voltage lithium-ion batteries (≥5 V cathodes)
• Next-generation metal-air batteries (Li-air, K-air)
• Grid-scale and stationary energy storage systems
• Advanced electrolytes for high-performance consumer electronics and electric vehicles

Benefits/Advantages

• Enhanced electrochemical stability: Supports operation at elevated voltages with reduced decomposition
• High solubility and concentration capability: Enables “solvent-in-salt” regimes for improved performance
• Reduced aluminum corrosion: Improved compatibility with current collectors under oxidative conditions
• Design flexibility: Modular synthesis allows tuning for specific battery chemistries and performance targets