Energy storage requirements of solid electrolytes

Are solid-state electrolytes a high-priority material?

Solid-state electrolytes (SSEs) have re-emerged as high-priority materials for enhancing the safety and power density of electrochemical energy storage devices. However, several challenges, including low ionic conductivity, narrow redox windows, and interface issues, hinder the practical deployment of solid-state batteries (SSBs).

What is a solid state electrolyte (SSE)?

Due to their dual roles as ionic conductors and electron insulators, solid-state electrolytes (SSEs) are key to replacing the liquid electrolytes commonly used in LIBs 32, 33. They offer several advantages: enhanced safety, absence of harmful organic solvents, low flammability, mechanical stability, and the potential for high energy density 34, 35.

Can solid-state electrolytes improve battery performance?

Solid-state electrolytes (SSEs) can effectively mitigate these challenges, further enhancing safety and providing energy densities equal to or superior to the existing solutions 30, 31. Fig. 1: Overview of sustainable energy resources and advanced materials for enhanced battery performance.

Are sulfide-based solid-state electrolytes a viable solution for lithium-ion batteries?

Sulfide-based solid-state electrolytes (SSEs) are gaining traction as a viable solution to the energy density and safety demands of next-generation lithium-ion batteries.

Are inorganic solid electrolytes relevant to solid-state batteries?

Inorganic solid electrolytes, also known as fast-ion conductors, are crucial to the solid-state battery concept. This Review aims to discuss the current fundamental understanding of their material properties relevant to their integration in solid-state batteries.

Can a solid electrolyte maintain a consistent cycle life?

However, challenges such as interfacial resistance between the solid electrolyte and electrodes need continuous refinement to maintain consistent cycle life . Recent developments in advanced solid electrolytes, including sulfides and oxides, demonstrate the potential for high energy retention even after thousands of cycles.