Issue 1, 2016

Pressing a spring: what does it take to maximize the energy storage in nanoporous supercapacitors?

Abstract

We discuss the nonlinear effects and efficiency of charge storage in supercapacitors with nanoporous electrodes and ionic liquids, and demonstrate that to maximize the stored energy, it may be beneficial to create ‘obstacles’ or ‘difficulties’ in charging. This can be achieved by making thermodynamically unfavourable conditions for ions inside nanopores, or more favourable outside. We show by means of Monte Carlo simulations that such ‘ionophobic’ pores store energy more efficiently and can provide equivalent or even better energy capacity. Since the recent analysis predicts much faster charging of ionophobic nanopores, we conclude that such pores offer a better option for simultaneous energy/power optimization.

Graphical abstract: Pressing a spring: what does it take to maximize the energy storage in nanoporous supercapacitors?

Article information

Article type
Communication
Submitted
02 Jun 2015
Accepted
06 Aga 2015
First published
16 Sep 2015

Nanoscale Horiz., 2016,1, 45-52

Pressing a spring: what does it take to maximize the energy storage in nanoporous supercapacitors?

S. Kondrat and A. A. Kornyshev, Nanoscale Horiz., 2016, 1, 45 DOI: 10.1039/C5NH00004A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements