Calcium-SOCl2 Cell: Effect of Can Material and Polarity on Storage Properties

E. Peled; R. Cohen; A. Melman; Y. Lavi

doi:10.1149/1.2069507

Calcium-SOCl₂ Cell: Effect of Can Material and Polarity on Storage Properties

E. Peled, R. Cohen, A. Melman, Y. Lavi

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

High power C-size Ca-SOCl₂ cells with Sr(AlCl₄) + 20% SO₂ electrolyte and SS can (positive can configuration) proved to have very good storage properties at room temperature, 55°C, and 70°C. When these cells were made with nickel plated cold rolled steel can (negative can configuration) they exhibited very high self discharge and failed 70 and 55°C storage tests. Postmortem analysis of this cell proved a severe corrosion of the steel can especially near the anode to can contact. Cathodic protection tests revealed an enhanced pitting corrosion of stainless steel due to its connection to a calcium foil. The mechanism of this corrosion process is discussed.

Original language	English
Pages (from-to)	1836-1839
Number of pages	4
Journal	Journal of the Electrochemical Society
Volume	139
Issue number	7
DOIs	https://doi.org/10.1149/1.2069507
State	Published - Jul 1992

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abstract = "High power C-size Ca-SOCl2 cells with Sr(AlCl4) + 20% SO2 electrolyte and SS can (positive can configuration) proved to have very good storage properties at room temperature, 55°C, and 70°C. When these cells were made with nickel plated cold rolled steel can (negative can configuration) they exhibited very high self discharge and failed 70 and 55°C storage tests. Postmortem analysis of this cell proved a severe corrosion of the steel can especially near the anode to can contact. Cathodic protection tests revealed an enhanced pitting corrosion of stainless steel due to its connection to a calcium foil. The mechanism of this corrosion process is discussed.",

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AB - High power C-size Ca-SOCl2 cells with Sr(AlCl4) + 20% SO2 electrolyte and SS can (positive can configuration) proved to have very good storage properties at room temperature, 55°C, and 70°C. When these cells were made with nickel plated cold rolled steel can (negative can configuration) they exhibited very high self discharge and failed 70 and 55°C storage tests. Postmortem analysis of this cell proved a severe corrosion of the steel can especially near the anode to can contact. Cathodic protection tests revealed an enhanced pitting corrosion of stainless steel due to its connection to a calcium foil. The mechanism of this corrosion process is discussed.

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Calcium-SOCl₂ Cell: Effect of Can Material and Polarity on Storage Properties

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