Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received April 22, 2024
Accepted July 23, 2024
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
All issues
A Dendrite-Free Lithium Metal Battery by Incorporating Poly(dimethylsiloxane) Layer onto the Porous Three-Dimensional Copper Current Collector
Abstract
As an anode, lithium metal electrode is one of the most promising candidates for lithium batteries because of their theoretically
high specifi c capacity and low redox potential. However, lithium dendrites are formed during the cycle of lithium
deposition and dissolution on the copper current collector during charging and discharging, threatening the stability and
durability of lithium metal batteries (LMBs). In this study, a three-dimensional (3D) porous copper coated with a polymer
layer (polydimethylsiloxane, PDMS) is used as a current collector to ensure high stability. A PDMS-coated 3D porous
current collector is prepared by Cu electrodeposition using hydrogen bubbles as a template followed by a PDMS coating.
PDMS coating is performed by spin coating of PDMS on a slide glass and transferring it to the current collector. The 3D
current collector functionalized by PDMS off ers prolonged lifespans in both Li deposition/dissolution and intercalation of
the lithium iron phosphate cathode, as the functionalized PDMS-coated 3D porous current collector eff ectively prevents the
growth of Li dendrites at the interface.
