Nanoporous Cathodes for High-Energy Li–S Batteries from Gyroid Block Copolymer Templates
Soumyadip Choudhury
Mukesh Agrawal
Petr Formanek
Dieter Jehnichen
Dieter Fischer
Beate Krause
Victoria Albrecht
Manfred Stamm
Leonid Ionov
10.1021/acsnano.5b01406.s001
https://acs.figshare.com/articles/journal_contribution/Nanoporous_Cathodes_for_High_Energy_Li_S_Batteries_from_Gyroid_Block_Copolymer_Templates/2155918
This study reports on a facile approach to the fabrication of nanoporous carbon cathodes for lithium sulfur batteries using gyroid carbon replicas based on use of polystyrene-poly-4-vinylpyridine (PS-P4VP) block copolymers as sacrificial templates. The free-standing gyroid carbon network with a highly ordered and interconnected porous structure has been fabricated by impregnating the carbon precursor solution into the gyroid block copolymer nanotemplates and subsequently carbonizing them. A wide range of analytical tools have been employed to characterize fabricated porous carbon material. Prepared nanostructures are envisioned to have a great potential in myriad areas such as energy storage/conversion devices owing to their fascinating morphology exhibiting high surface area and uniform porosity with interconnected three-dimensional networks. The resulting carbon nanoporous structures infused with elemental sulfur have been found to work as a promising electrode for lithium sulfur batteries demonstrating a high cycling stability over more than 200 cycles.
2015-06-23 00:00:00
Prepared nanostructures
surface area
carbon precursor solution
cycling stability
lithium sulfur batteries
uniform porosity
gyroid carbon network
nanoporous carbon cathodes
Gyroid Block Copolymer TemplatesThis study reports
200 cycles
gyroid carbon replicas
4VP
Nanoporous Cathodes
carbon material
gyroid block copolymer nanotemplates
carbon nanoporous structures