Carbon inverse opal entrapped with electrode active nanoparticles as high-performance anode for lithium-ion batteries
Hng, Huey Hoon
Date of Issue2013
School of Materials Science and Engineering
Enhancing ion and electron transport kinetics together with improving cycle life are important issues to be considered when developing high-performance Li ion batteries. Here we demonstrate a three dimensional ordered macroporous conductive electrode concept by entrapping electrode active nanoparticles in an interpenetrating macroporous carbon inverse opal. The electrodes are featured with simultaneously enhanced ion and electron transport kinetics as well as geometrically constrained active nanoparticles. The electrode can deliver up to 94.17% of theoretical capacity over 1000 discharge/charge cycles at a current density of 2.0 A g−1, and exhibits good rate capability in the high current density range of 1.0–10.0 A g−1. We hope that our findings will help pave the way for tailored design of many other sophisticated electrode materials in electrochemistry.
DRNTU::Engineering::Materials::Electronic packaging materials
© 2013 The Author(s). This paper was published in Scientific Reports and is made available as an electronic reprint (preprint) with permission of The Author(s). The paper can be found at the following official DOI: http://dx.doi.org/10.1038/srep02317. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.