Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
196418 | Electrochimica Acta | 2007 | 7 Pages |
Abstract
Spherical Al-substituted γ-NiOOH as an individual positive electrode material for a new type of alkaline primary/rechargeable Zn-NiOOH battery was prepared by the chemical oxidation of spherical Al-substituted α-Ni(OH)2. The spherical Al-substituted γ-NiOOH was characterized by XRD, SEM, FT-IR, TGA-DTG, TPD-MS and HT-XRD. The tap density and average nickel oxidation state were measured. Its electrochemical performance and storage stability were also investigated. The results show that the as-prepared spherical Al-substituted γ-NiOOH has remarkably higher specific discharge capacity and superior storage stability in alkaline electrolyte compared to spherical β-NiOOH.
Related Topics
Physical Sciences and Engineering
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Authors
Xian-Zhu Fu, Xing Wang, Qing-Chi Xu, Jun Li, Jeff-Qiang Xu, Jing-Dong Lin, Dai-Wei Liao,