Multi-Doped Coating Materials for Lithium-Based Batteries

Stanford researchers have developed protective coating materials that can improve the stability, safety, and lifetime of lithium-ion batteries. The coatings are designed to protect battery components during repeated charging and discharging while still allowing lithium ions and electrons to move efficiently. This coating forms a thin barrier layer, built from a lithium ternary oxide host doped with a tailored combination of cations and anions, that shields the electrode surface while still conducting both electrons and lithium ions across it. The dopants are selected computationally to tune this balance of protection and conductivity for the specific host material and application. This approach could help battery manufacturers improve cycle life, safety, and long-term reliability in applications such as electric vehicles, consumer electronics, and grid storage.

Stage of Development:Proof of Concept