The influence of processing parameters on the electrochemical performance of sulphate based cathode materials.
Published: 2006
Language: eng
Number of pages: 77
ISBN-13: 9780494161753
Description: This project focuses on synthesis, characterisation and evaluation of the electrochemical performance of Li2Fe2(SO4) 3 as a potential novel cathode material. A sol-gel technique has been used as a basis for the synthesis method in order to control the morphology of the synthesised material. Physical characterisation included SEM and XRD. Battery cells were constructed within a controlled atmosphere glove box and the electrochemical behaviour evaluated using a computer controlled cyclic facility for up to 50 cycles at different discharge rates. Several approaches, including carbon ball-milling and the use of a nickel foam charge collector, were taken to improve the electrochemical performance of the material since its primary weakness was found to be low electrical conductivity. Through the carbon ball-milling approach the specific capacity of the material was raised to 40mAh/g from initial results of 15mAh/g. The operating voltage was also stabilized at 3.6V.
Notes: Source: Masters Abstracts International, Volume: 44-06, page: 2958.

Thesis (M.A.Sc.)--University of Toronto, 2006.

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