Premium
Highly Sustainable Zinc Anodes for a Rechargeable Hybrid Aqueous Battery
Author(s) -
Sun Kyung E. K.,
Hoang Tuan K. A.,
Doan The Nam Long,
Yu Yan,
Chen Pu
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704440
Subject(s) - zinc , anode , materials science , electroplating , galvanic anode , corrosion , electrolyte , boric acid , aqueous solution , electrochemistry , battery (electricity) , electrode , metallurgy , inorganic chemistry , foil method , cathode , chemical engineering , cathodic protection , chemistry , nanotechnology , composite material , layer (electronics) , organic chemistry , power (physics) , physics , quantum mechanics , engineering
The synthesis of novel zinc electrodes has been successfully implemented by using the electroplating method with the aid of inorganic additives in the electroplating solution. The selected inorganic additives are indium sulfate, tin oxide, and boric acid. From X‐ray diffraction results, these synthesized zinc electrodes prefer (002) and/or (103) crystallographic orientations, representing basal morphology and high resistance to dendrite growth. The corrosion rates of these electroplated zinc samples decrease as much as 11 times smaller than the corrosion rate on zinc foil when the zinc materials are in contact with the aqueous electrolyte of a rechargeable hybrid aqueous battery (ReHAB). The ReHABs employing these anodes exhibit up to a threefold decrease in float charge current density after a seven‐day constant‐voltage charging at 2.1 V versus Zn 2+ /Zn. Furthermore, the capacity retention is up to 15 % higher than the performance of battery containing commercial Zn after 1000 cycles of charge–discharge. The significant advancements are attributed to the careful preparation of the anode, which contains appropriate crystallographic orientation and morphology.