Biomimetic Ultrathin Cellulose Composite Separator

High Ion Selectivity Suppresses Shuttle

With a biomimetic ion-channel design, this separator simultaneously suppresses polysulfide shuttling and lithium dendrite growth, enabling ultra-stable cycling for Li–S batteries.

Tingting, Liao · Huang, Shaofeng · Wang, Lei · Liu, Weiqi · Wang, Xiaohui · Zhang, Wei

Advanced Functional Materials 2025

Specifications

锂离子通量

{'zh': '2.186', 'en': ''} mS cm⁻¹

high sulfur loading

{'zh': '11.12', 'en': '11.12'} mg cm⁻²

Advantages

Li⁺/S₆²⁻ selectivity of 275.97

Capacity decay of 0.047% per cycle over 800 cycles at 0.5C