Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium-sulfur batteries.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28262801.
- Also identified by DOI 10.1038/ncomms14628 and PMC identifier 5343496.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Lithium-sulfur batteries are promising technologies for powering flexible devices due to their high energy density, low cost and environmental friendliness, when the insulating nature, shuttle effect and volume expansion of sulfur electrodes are well addressed. Here, we report a strategy of using foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for binder-free advanced lithium-sulfur batteries through a facile confinement conversion. The carbon nanotubes interpenetrate through the metal-organic frameworks crystal and interweave the electrode into a stratified structure to provide both conductivity and structural integrity, while the highly porous metal-organic frameworks endow the electrode with strong sulfur confinement to achieve good cyclability. These hierarchical porous interpenetrated three-dimensional conductive networks with well confined S<sub>8</sub> lead to high sulfur loading and utilization, as well as high volumetric energy density.