Next Article in Journal
Assessment of the Potential Economic Impact of the Use of AM Technologies in the Cost Levels of Manufacturing and Stocking of Spare Part Products
Next Article in Special Issue
Biobased Functional Carbon Materials: Production, Characterization, and Applications—A Review
Previous Article in Journal
Design of a Scaffold Parameter Selection System with Additive Manufacturing for a Biomedical Cell Culture
Previous Article in Special Issue
Sequential Production of Levulinic Acid and Porous Carbon Material from Cellulose
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Materials 2018, 11(8), 1428; https://doi.org/10.3390/ma11081428

Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries

Dpto. Química Inorgánica e Ingeniería Química, Instituto de Química Fina y Nanoquímica, Universidad de Córdoba, 14071 Córdoba, Spain
*
Author to whom correspondence should be addressed.
Received: 29 June 2018 / Revised: 8 August 2018 / Accepted: 8 August 2018 / Published: 14 August 2018
(This article belongs to the Special Issue Advanced Biomass-Derived Carbon Materials)
Full-Text   |   PDF [2250 KB, uploaded 14 August 2018]   |  

Abstract

A microporous carbon derived from biomass (almond shells) and activated with phosphoric acid was analysed as a cathodic matrix in Li–S batteries. By studying the parameters of the carbonization process of this biomass residue, certain conditions were determined to obtain a high surface area of carbon (967 m2 g−1) and high porosity (0.49 cm3 g−1). This carbon was capable of accommodating up to 60% by weight of sulfur, infiltrated by the disulphide method. The C–S composite released an initial specific capacity of 915 mAh g−1 in the Li–S cell at a current density of 100 mA g−1 with a high retention capacity of 760 mAh g−1 after 100 cycles and a coulombic efficiency close to 100%. The good performance of the composite was also observed under higher current rates (up to 1000 mA g−1). The overall electrochemical behaviour of this microporous carbon acting as a sulfur host reinforces the possibility of using biomass residues as sustainable sources of materials for energy storage. View Full-Text
Keywords: almond; agricultural waste; biomass-derived carbon; sulfur composite; lithium–sulfur batteries almond; agricultural waste; biomass-derived carbon; sulfur composite; lithium–sulfur batteries
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Benítez, A.; González-Tejero, M.; Caballero, Á.; Morales, J. Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries. Materials 2018, 11, 1428.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top