Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 18, 2020
Previous Article Next Article

A universal and facile approach to suppress dendrite formation for a Zn and Li metal anode

Author affiliations


To solve the poor cycling stability of zinc ion batteries (ZIBs) caused by the growth of zinc (Zn) dendrites, a novel method of separator modification is proposed. Herein, graphene oxide (GO), which has many outstanding properties, is applied as a modified material to a glass fiber (GF) separator using a simple vacuum filtration method. A stable and dendrite-free Zn anode can be obtained after 500 cycles in a Zn//Zn symmetrical battery when using a modified separator (GF/GO1), which is mainly owing to the preferential growth of the non-protruding crystal planes of the zinc metal and the uniform nucleation of zinc ions under the action of GO. As proof of concept, full Zn//MnO2 batteries with a GF/GO1 separator exhibited a high specific capacity of 126 mA h g−1 at 0.1 A g−1, a high energy density of 327.5 W h kg−1 (power density of 0.517 W kg−1), and a high power density of 20.8 kW kg−1 (energy density of 253.8 W h kg−1), demonstrating significant improvements compared with the unmodified GF separator. Meanwhile, ZIBs with a GF/GO1 separator exhibited excellent long-term stability with less than 25% capacity fade over 500 cycles at a current density of 0.5 A g−1. ZIBs with a GF separator retain only 37% of their initial capacity after 100 cycles. Furthermore, the GF/GO1 separator can also help to improve the cycle performance and rate performance of lithium metal batteries and to achieve a dendrite-free lithium anode. Full batteries of Li//GF/GO1//LiCoO2 show improved rate and cycling capabilities. A higher energy density of 537.1 W h kg−1 at 0.04 kW kg−1 and higher power density of 1.4 kW kg−1 at 264.6 W h kg−1 can be achieved with a GF/GO1 separator, which is better than many Li metal batteries. This modification of the separator provides an effective approach to designing next-generation batteries exhibiting excellent rate and cycling capabilities, and high energy and power densities.

Graphical abstract: A universal and facile approach to suppress dendrite formation for a Zn and Li metal anode

Back to tab navigation

Supplementary files

Article information

03 Mar 2020
14 Apr 2020
First published
14 Apr 2020

J. Mater. Chem. A, 2020,8, 9331-9344
Article type

A universal and facile approach to suppress dendrite formation for a Zn and Li metal anode

J. Cao, D. Zhang, X. Zhang, M. Sawangphruk, J. Qin and R. Liu, J. Mater. Chem. A, 2020, 8, 9331
DOI: 10.1039/D0TA02486D

Social activity

Search articles by author