Core-shell sulfur@polypyrrole composites as high-capacity materials for aqueous rechargeable batteries.

Core-shell sulfur@polypyrrole composites as high-capacity materials for aqueous rechargeable batteries.

Nanoscale (2013-01-15)

Jie Shao, Xinyong Li, Li Zhang, Qunting Qu, Honghe Zheng

ABSTRACT

In order to explore the potential application of sulfur in aqueous rechargeable batteries, core-shell sulfur-polypyrrole (S@PPy) composites were prepared through a novel one-pot and surfactant-free method. Sulfur exhibits a very high capacity of 473 mA h g(-1) and good cycling stability in an aqueous Li(2)SO(4) electrolyte due to the polypyrrole coating.

MATERIALS

Product Number

Brand

Product Description

577030

Sigma-Aldrich

Polypyrrole, conductivity 10-50 S/cm (pressed pellet)

530573

Sigma-Aldrich

Polypyrrole, doped, conductivity 30 S/cm (bulk), extent of labeling: 20 wt. % loading, composite with carbon black

578177

Sigma-Aldrich

Polypyrrole, doped, conductivity 0.5-1.5 S/cm (pressed pellet, typical), extent of labeling: ~5 wt. % loading, coated on titanium dioxide