Browsing Journal Articles by Author "De Kock, A"

Now showing items 1-7 of 7

Effect of mulitivalent cation dopants on lithium manganese spinel cathodes

Author: De Kock, A ; Freg, E ; Gummow, RJ Date: Feb 1998 The aim of this investigation is to determine optimised spinel cathode compositions that can be used in lithium cells. The cycling stability of 4 V LixMn2O4 electrodes in lithium, flooded electrolyte glass cells has been improved by the ... Read more
Improved capacity retention in rechargeable 4 V lithium/lithium manganese oxide (spinel) cells.

Author: Gummow, RJ ; De Kock, A ; Thackeray, MM Date: Apr 1994 The rechargeable capacity of 4 V LixMn2O4 spinel cathodes (0 < x <= 1) has been improved by modifying the composition of the spinel electrode. Stable rechargeable capacities in excess of 100 mAh/g in flooded-electrolyte lithium cells can be ... Read more
Ramsdellite-MnO2 for lithium batteries: The ramsdellite to spinel transformation

Author: Thackeray, MM ; Rossouw, MH ; Gummow, RJ ; Liles, DC ; Pearce, K ; De Kock, A ; David, WIF ; Hull, s Date: Jun 1993 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 hexagonally-close-packed ... Read more
Spinal Anodes for Lithium-Ion Batteries

Author: Ferg, E ; Gummow, RJ ; De Kock, A ; Thackeray, MM Date: Nov 1994 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 and LiZn0.025Mn1.95O4, ... Read more
Synthesis and structural characterization of defect spinels in the lithium-manganese-oxide system

Author: Thackeray, MM ; De Kock, A ; David, WIF Date: Oct 1993 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 MnCO3 and Li2CO3 at ... Read more
Synthesis and structural characterization of defect spinels in the Lithium-Manganese-Oxide system

Author: Thackeray, MM ; De Kock, A ; David, WIF Date: Oct 1993 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 MnCO3 and Li2CO3 at ... Read more
Versatility of MnO2 for lithium battery applications

Author: Thackeray, MM ; Rossouw, MH ; De Kock, A ; De la Harpe, AP ; Gummow, RJ ; Pearce, K ; Liles, DC Date: 15 Mar 1993 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 polymorphic structures ... Read more

Now showing items 1-7 of 7

Browse

All of ResearchSpace
This Collection
- By Issue Date
- Authors
- Titles
- Subjects
- Publication Type
- Cluster
- Impact Area

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing Journal Articles by Author "De Kock, A"

Browsing Journal Articles by Author "De Kock, A"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect