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The polymer battery as an environment for in situ X-ray diffraction studies of solid-state electrochemical processes

✍ Scribed by T. Gustafsson; J.O. Thomas; R. Koksbang; G.C. Farrington


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
385 KB
Volume
37
Category
Article
ISSN
0013-4686

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✦ Synopsis


An indirect result of the development of a thin-film battery using a polymer-salt electrolyte is the new possibilities this provides for following, by fast in situ X-ray diffraction techniques, the structural changes associated with solid-state reactions under realistic electrochemical conditions. This will be illustrated for the (Li 1 polymer-salt electrolytelV,O,,) thin-film battery, where the stepwise intercalation of Li+ into V,O,, to produce successively Li,V,O,,, x = 1,4 and 8, during cell discharge., is of special interest. We can show that V,O,, is indeed an intrinsically favourable cathode material in thin-film polymer battery concepts, and that development effort should be focused on battery design features rather than on a search for alternative cathode materials. The wide range of solid-state electrochemical phenomena that this technique can probe is immediately clear.


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