Journal of Applied Electrochemistry

, Volume 1, Issue 1, pp 9–17 | Cite as

Reaction in the silver zinc cell

  • M. I. Gillibrand
  • L. Langrish
  • G. R. Lomax
Papers
Received:

Abstract

An adiabatic calorimeter was used to measure the thermodynamics of the silver zinc cell. The charge and discharge reactions were shown to take place in two stages involving the production of argentous oxide and argentic oxide respectively. No thermal evidence was found to suggest the existence of a higher oxide of silver. The cell reactions were
$$2{\text{Ag + ZnO}} \leftrightharpoons {\text{Ag}}_{\text{2}} {\text{O + Zn, }}\Delta {\text{H = 158}} \cdot {\text{7 kJF}}^{ - {\text{1}}}$$
(1)
$${\text{Ag}}_{\text{2}} {\text{O + ZnO}} \leftrightharpoons {\text{Ag}}_{\text{2}} {\text{O}}_{\text{2}} {\text{ + Zn, }}\Delta {\text{H = 176}} \cdot 1{\text{ kJF}}^{ - {\text{1}}}$$
(2)

If the cell was left on open circuit for a long period, or the positive electrodes heated, reaction (2) was suppressed and the discharge took place via reaction (1), without any reduction in capacity.

Keywords

Oxide Zinc Physical Chemistry Calorimeter Open Circuit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Chapman and Hall Ltd. 1971

Authors and Affiliations

  • M. I. Gillibrand
    • 1
  • L. Langrish
    • 1
  • G. R. Lomax
    • 1
  1. 1.Electric Power Storage Ltd.SwintonUK

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