Biomass waste inspired highly porous carbon for high performance lithium/sulfur batteries

28Citations
Citations of this article
20Readers
Mendeley users who have this article in their library.

Abstract

The synthesis of highly porous carbon (HPC) materials from poplar catkin by KOH chemical activation and hydrothermal carbonization as a conductive additive to a lithium-sulfur cathode is reported. Elemental sulfur was composited with as-prepared HPC through a melt diffusion method to form a S/HPC nanocomposite. Structure and morphology characterization revealed a hierarchically sponge-like structure of HPC with high pore volume (0.62 cm3·g−1) and large specific surface area (1261.7 m2·g−1). When tested in Li/S batteries, the resulting compound demonstrated excellent cycling stability, delivering a second-specific capacity of 1154 mAh·g−1 as well as presenting 74% retention of value after 100 cycles at 0.1 C. Therefore, the porous structure of HPC plays an important role in enhancing electrochemical properties, which provides conditions for effective charge transfer and effective trapping of soluble polysulfide intermediates, and remarkably improves the electrochemical performance of S/HPC composite cathodes.

Cite

CITATION STYLE

APA

Zhao, Y., Ren, J., Tan, T., Babaa, M. R., Bakenov, Z., Liu, N., & Zhang, Y. (2017). Biomass waste inspired highly porous carbon for high performance lithium/sulfur batteries. Nanomaterials, 7(9). https://doi.org/10.3390/nano7090260

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free