Bead Mill for Sodium-Ion Hard Carbon Anodes: Why Grinding Finer Can Cost You First-Cycle Efficiency. Hard carbon is currently regarded as the most commercially viable anode material for sodium-ion batteries, but its initial coulombic efficiency (ICE) typically sits between 60% and 90%, which is the central bottleneck for full-cell deployment.

Bead Mill for Graphene Exfoliation | Sanxing Machinery. How a bead mill peels graphite into few-layer graphene sheets a mechanical goal that's the opposite of most particle grinding.