Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract Lithium‐sulfur (Li–S) batteries are hindered by issues such as the polysulfide shuttle effect and Li dendrite formation, which leads to capacity degradation. To address these issues, a bio‐strategy involving functionalization of commercial separator with an amino acid‐polymer system, leucine‐polyacrylic acid (Leu‐PAA), is reported here. A simple soaking method used in preparing Leu‐PAA, effective viable for practical application. The Leu‐PAA soaked exhibits improved wettability thermal stability, well enhanced trapping regulated lithium ion flux. As result, Li–S cell using achieves initial 599.9 mAh g −1 at 0.5 retains 53.5% after 500 cycles. properties attributed synergistic effects Leu PAA, suppress ensure uniform transport, resulting electrochemical performance. This work provides promising, bio‐inspired solution improving performance cycle life batteries.

Language: Английский