Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 7, Issue 8, Pages 857-862Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2005.05.004
Keywords
synthesis; NiOOH; discharge capacity; alkaline battery
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The synthesis, characterization and electrochemical properties of the new microcrystalline material NiOOH are described. This material was prepared by precipitation from NaClO-NaOH solutions and characterized by X-ray powder diffraction, electron microscopy, TG-DSC, chemical analysis and electrochemical studies. The electrode composed of NiOOH provides 70% higher energy capacity (267 mAh g(-1) at 1.60 V) than conventional alkaline manganese electrodes (219 mAh g(-1) at 1.15 V) at galvanic current of 60 mA g(-1) down to a cell voltage of 1.0 V (vs. Zn/ZnO). The material exhibits a high discharge capacity with good reversibility under galvanostatic current charge/discharge test. (c) 2005 Elsevier B.V. All rights reserved.
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