Materials Science, Nanotechnology and Nanomaterials Conference

Materials for Solid-State Batteries: The Future of Safe Energy and Long-Term Storage

The promise of higher safety, greater energy density, and longer life in a new generation of solid-state batteries is changing the face of the energy storage landscape. The solid electrolyte/solid electrode interface with its unique interplay is pushing the limits to the technology of the next generation of high-performance batteries.

Perhaps one of the most significant advantages of solid-state batteries is their employment of solid electrolytes, in place of the flammable liquid electrolytes used in today's lithium-ion batteries. The excellent thermal stability introduced with the ceramic, sulfide, and polymeric materials makes solid state batteries less prone to catching fire or exploding compared to the conventional liquid-based batteries, hence better in safety. With these materials, solid-state batteries can operate at higher voltages and temperatures without a decline in efficiency or lifespan.

Major progress is the development of solid-state electrolytes, in addition to that of lithium metal anodes. Lithium metal promises an energy density greater than conventional graphite anode energy density, therefore, more energy stored in the same volume by batteries. Solid-state batteries are preferred if applications ask for optimality in weight and volume, such as electric vehicles and aerospace.

Cathode materials are also evolving with the emergence of new sulfide and oxide formulations promising functionality with solid electrolytes. These materials increase the charge capacity and stability of batteries, ensuring longer cycles of life and better performance over time.

Future electric vehicles, portable electronics, and renewable energy storage are expected to be led by solid-state battery materials in the search for safety, efficiency, and longer life-span energy solutions.