Lab creates world's first anode-free sodium solid-state battery

https://techxplore.com/news/2024-07-lab-world-anode-free-sodium.html

"eco-friendly, fast-charging, stable for 100's of cycles... anode-free enables higher cell voltage, lower cell cost, energy density of lithium, but lacks good contact between the electrolyte and the current collector... aluminum powder current collector densified under high pressure forms solid current collector while maintaining liquid-like (actual liquid electrolytes create interphase buildup reducing battery's usefulness) contact with electrolyte enabling it to surround electrolyte and allowing low-cost, high-efficiency cycling"

Related:

Using sodium to make more sustainable batteries
https://techxplore.com/news/2024-07-sodium-sustainable-batteries.html

Anode-free solid-state batteries: Fundamental insights bring them a step closer to practical use
https://techxplore.com/news/2025-02-anode-free-solid-state-batteries.html#google_vignette

Sodium super ionic conductor solid electrolytes: 100x more power, may soon run at room temperature
https://interestingengineering.com/energy/bams-new-approach-to-boost-solid-state-batteries

Tailoring artificial solid electrolyte interphase via MoS2 sacrificial thin film for Li‑free all‑solid‑state batteries
https://www.eurekalert.org/news-releases/1087738