DECOMPOSITION OF ACETONITRILE IN DISCHARGED Li/SO2 CELLS

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Authors
  1. Donaldson, G.J.
Corporate Authors
Farrington Lockwood Co Ltd, Kanata ONT (CAN);Chief of Research and Development, Ottawa ONT (CAN) Director Research and Development Air;Ottawa Univ, Ottawa ONT (CAN) Electrochemical Science and Technology Centre
Abstract
In the balanced design of the lithium sulphur dioxide cell it has usually been assumed that the acetonitrile solvent did not undergo reaction because all the lithium and sulphur dioxide were considered to be consumed in fully discharged cells. However, earlier cell studies indicated that acetonitrile was also reacted to form products that could be responsible for interfering with techniques employed to analyze for free cyanide. Therefore, sensitive and selective analytical methods were developed to obtain reliable data for the presence of free cyanide and other products from the reaction of acetonitrile. Ion chromatography and liquid chromatography techniques were developed to improve the capability to determine free cyanide, thiocyanite and metal-cyanide complexes. Gas chromatography was used to quantify di-acetonitrile, tri-acetonitrile and volatile hydrocarbons. Some characterization of other reaction products was also achieved. The results of the study helped to better define the environmental concerns and the treatment olf lithium sulphur dioxide cells in disposal practices.
Date of publication
01 May 1994
Number of Pages
3
DSTKIM No
94-05760
CANDIS No
144208
Format(s):
Hardcopy;Document Image stored on Optical Disk

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