Designing Amino Functionalized Titanium-Organic Framework on Separators Toward Sieving and Redistribution of Polysulfides in Lithium-Sulfur Batteries.

ABSTRACT: Shuttle effect of polysulfides overshadows the superiorities of lithium-sulfur batteries. Size-sieving effect could address this thorny trouble rely on size differ in polysulfides and lithium ions. However, clogged polysulfides pose some challenges for cathode and are rarely recycled during charging/discharging. Herein, an amino functionalized titanium-organic framework is designed for modifying lithium-sulfur batteries separator to address the aforementioned challenges. Wherein, the introduction of amino narrows titanium-organic framework pore size, enabling functional separator to selectively modulate lithium ions and polysulfides migration using size-sieving effect, thereby completely suppressing polysulfides shuttle. Furthermore, the blocked polysulfides will be adsorbed on the separat

SUBMITTER: Kang X 

PROVIDER: S-EPMC12106290 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature