Highly reversible Zn plating/stripping achieved with electrodes prepared by electrodepositing Zn onto porous 3D Cu foam.
Significance and Impact
The redesign of conventional metal foils into a 3D porous form factor leads to dramatic improvements in cycling performance. These results demonstrate an efficient method for preparing such porous electrodes for multivalent Zn batteries.
- Electrodeposition of a conformal Zn coating onto porous 3D Cu foam.
- Cycling in symmetric cells showed stable cycling for 100 cycles (35 h of plating/stripping)
- X-ray tomography and scanning electron microscopy showed no evidence of dramatic morphology changes after cycling
- 3D Zn anode supported high capacities and high-rate capability when paired with a V2O5 cathode