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Browsing by Author "De Kock, A"

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  • Thackeray, MM; Rossouw, MH; Gummow, RJ; Liles, DC; Pearce, K; De Kock, A; David, WIF; Hull, s (Pergamon Press Ltd, 1993-06)
    A pure and highly crystalline form of ramsdellite-MnO2 has been synthesized by acid treatment of the spinels LiMn2O4 and Li2Mn4O9 at 95°C. Although the ramsdellite-MnO2 framework remains intact on lithiation at 70°C, the ...
  • Khanyile, NP; De Kock, A; Mathekga, ME (IEEE, 2014-09)
    This paper identifies and analyses the factors that contribute to the similarity between two sets of minutiae points as well as the probability that two sets of minutiae points were extracted from fingerprints of the same ...
  • Ferg, E; Gummow, RJ; De Kock, A; Thackeray, MM (Electrochemical Society Inc, 1994-11)
    Anodes of Li4Mn5O12, Li4Ti5O12, and Li2Mn4O9 with a spinel-type structure have been evaluated in room-temperature lithium cells. The cathodes that were selected for this study were the stabilized spinels, Li1.03Mn1.97O4 ...
  • Thackeray, MM; De Kock, A; David, WIF (Pergamon-Elsevier Science Ltd, 1993-10)
    Lithium-manganese-oxides prepared at moderate temperatures are under investigation as insertion electrodes for rechargeable lithium batteries. The structures of two defect-spinel compounds synthesised by the reaction of ...
  • Thackeray, MM; De Kock, A; David, WIF (Pergamon Press Ltd, 1993-10)
    Lithium-manganese-oxides prepared at moderate temperatures are under investigation as insertion electrodes for rechargeable lithium batteries. The structures of two defect-spinel compounds synthesized by the reaction of ...
  • Thackeray, MM; Rossouw, MH; De Kock, A; De la Harpe, AP; Gummow, RJ; Pearce, K; Liles, DC (Elsevier Science SA, 1993-03-15)
    Manganese dioxide has for many years found widespread use as a cathode material in aqueous Leclanche, zinc chloride and alkaline cells and, more recently, in nonaqueous lithium cells. However, despite the large number of ...