10.1021/acssuschemeng.8b05568.s001
Zhuang Kang
Zhuang
Kang
Changle Wu
Changle
Wu
Liubing Dong
Liubing
Dong
Wenbao Liu
Wenbao
Liu
Jian Mou
Jian
Mou
Jingwen Zhang
Jingwen
Zhang
Ziwen Chang
Ziwen
Chang
Baozheng Jiang
Baozheng
Jiang
Guoxiu Wang
Guoxiu
Wang
Feiyu Kang
Feiyu
Kang
Chengjun Xu
Chengjun
Xu
3D Porous Copper Skeleton Supported Zinc Anode toward
High Capacity and Long Cycle Life Zinc Ion Batteries
American Chemical Society
2019
Long Cycle Life Zinc Ion Batteries Zinc ion batteries
ZIB
ultrathin MnO 2 nanosheet cathode
deposition
copper skeleton
3 D Zn anode exhibits
3 D Porous Copper Skeleton
3 D Zn anode
2019-01-07 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/3D_Porous_Copper_Skeleton_Supported_Zinc_Anode_toward_High_Capacity_and_Long_Cycle_Life_Zinc_Ion_Batteries/7603469
Zinc
ion batteries (ZIBs) have attracted extensive attention in
recent years, benefiting from their high safety, eco-friendliness,
low cost, and high energy density. Although many cathode materials
for ZIBs have been developed, the poor stability of zinc anodes caused
by uneven deposition/stripping of zinc has inevitably limited the
practical application of ZIBs. Herein, we report a highly stable 3D
Zn anode prepared by electrodepositing Zn on a chemically etched porous
copper skeleton. The inherent excellent electrical conductivity and
open structure of the 3D porous copper skeleton ensure the uniform
deposition/stripping of Zn. The 3D Zn anode exhibits reduced polarization,
stable cycling performance, and almost 100% Coulombic efficiency as
well as fast electrochemical kinetics during repeated Zn deposition/stripping
processes for 350 h. Furthermore, full cells with a 3D Zn anode, ultrathin
MnO<sub>2</sub> nanosheet cathode, and Zn<sup>2+</sup>-containing
aqueous electrolyte delivered a record-high capacity of 364 mAh g<sup>–1</sup> at a current density of 0.1 A g<sup>–1</sup> and good cycling stability with a retained capacity of 173 mAh g<sup>–1</sup> after 300 charge/discharge cycles at 0.4 A g<sup>–1</sup>. This work provides a pathway for developing high-performance
ZIBs.