03/10/2025
Building safer, longer-lasting solid-state batteries.
Conventional liquid electrolytes pose flammability risks, while many solid-state ones still lag in ion transport.
A new study from Tsinghua University shows how TiO₂@Zn/Co−ZIF nanoparticle fillers transform PVDF-based composite electrolytes (PVZT):
➡️ Room-temp ionic conductivity: 8.8 × 10⁻⁴ S·cm⁻¹
➡️ Li-ion transference number: 0.47
➡️ Stable cycling: 1100+ hrs in Li||Li & 75% capacity retention after 1200 cycles in Li||NCM811
By pairing TiO₂’s Lewis acidity with ZIF’s nanoporous structure, this dual-function filler boosts ion dissociation, suppresses dendrites, and enhances interfacial stability.
A scalable pathway toward safer, high-performance solid-state batteries. https://doi.org/10.26599/EMD.2025.9240069