Enhanced electrochemical performance of high-density Al-substituted α-nickel hydroxide by a novel anion exchange method using NaCl solution

Download
  1. Get@NRC: Enhanced electrochemical performance of high-density Al-substituted α-nickel hydroxide by a novel anion exchange method using NaCl solution (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.ijhydene.2014.11.150
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Hydrogen Energy
ISSN0360-3199
Volume40
Issue4
Pages18521858; # of pages: 7
SubjectAluminum; Cathodes; Cyclic voltammetry; Electric discharges; Infrared spectroscopy; Ions; Nickel; Scanning electron microscopy; Secondary batteries; X ray diffraction; Anion exchange; Anion-exchange methods; Cath-ode materials; Charge-discharge tests; Electrochemical activities; Electrochemical impedance; Electrochemical performance; Nickel hydroxides; Electrochemical impedance spectroscopy
AbstractHigh-density Al-substituted α-nickel hydroxide with interlayer NO3 - for alkaline nickel-based rechargeable batteries has been synthesized using a polyacrylamide (PAM) assisted two-step drying method. In order to improve its electrochemical performance, Al-substituted α-Ni(OH)2 with interlayer NO3 - is modified by a simple anion exchange method using NaCl solution. The physical and electrochemical properties of the synthesized material are characterized by means of X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and a charge-discharge test. Compared with NO3 - intercalated α-Ni(OH)2 precursor, the resulting Cl- intercalated α-Ni(OH)2 samples possess more excellent electrochemical activities, including higher proton diffuse coefficient, lower electrochemical impedance, higher specific capacity, and better cyclic stability. Especially, it is also found that the introduction of Cl- can greatly accelerate the activation process of α-Ni(OH)2 electrodes.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationNational Research Council Canada; Energy, Mining and Environment
Peer reviewedYes
NPARC number21275737
Export citationExport as RIS
Report a correctionReport a correction
Record identifier05162147-859a-4b6d-ab55-e8755f8f21f1
Record created2015-07-14
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)