Enhancement on Cycle Performance of Zn Anodes by Activated Carbon Modification for Neutral Rechargeable Zinc Ion Batteries

By Hongfei Li, Chengjun Xu, Cuiping Han, Yanyi Chen, Chunguang Wei, Baohua Li, Feiyu Kang. 2015

186 citations recorded by the source corpus.

A novel composite anode is prepared by mixing zinc particles with activated carbon (AC) to improve the cycle performance of the neutral rechargeable zinc ion batteries. Galvanostatic charge/discharge cycling tests indicate that the capacity retention of the cell with adding 12 wt% activated carbon in Zn anode is 85.6% after 80 cycles, which is much higher than that of 56.7% for the cell using unmodified Zn anode. X-ray diffraction analysis indicates that the addition of activated carbon can suppress the formation of inactivebasiczincsulfates(Zn 4 SO 4 (OH) 6 · n H 2 0).Morphology,elementalmappingandN 2 adsorptionanddesorptionmeasurements indicate that the pores of activated carbon can accommodate the deposition of Zn dendrites and insoluble anodic products. As a result, the cycle stability of the Zn anode has been greatly enhanced by activated carbon modification.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/14463b7c178c074e5c9dbf924d30c7c62dc25c47