✦ LIBER ✦

Electrochemical behaviour of lead oxides in aprotic organic electrolyte solutions

✍ Scribed by G. Ludwig; W. Schneider; K. Wiesener

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 504 KB
Volume: 21
Category: Article
ISSN: 0378-7753
DOI: 10.1016/0378-7753(87)80041-1

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✦ Synopsis

Of the various lead oxides tested, red lead (Pb304) proved to be the most suitable for use as cathode material in lithium cells having a voltage of 1.5 V. Based on electrochemical, chemical, and physical measurements, the reaction mechanisms of red lead cathodes are discussed. The reduction of red lead to lead is assumed to proceed in two partial steps which run simultaneously during the discharge process. While at the beginning of the discharge the reduction of Pb4+ to Pb2+ dominates, it is the reduction of Pb2+ to Pb in the phase interface which determines the potential in the discharge plateau. Simultaneously, Pb4+ is reduced in the bulk of the red lead particles.

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