The Role of Lithium Passivation in LiSO2

Abstract

The role of the lithium passivation layer on lithium sulfur dioxide (Li/SO2) cell performance has been studied. Polarization attributed to the Li layer was characterized; an initial polarization (voltage delay) was in some cases followed by a secondary polarization. It was found that long-term, low rate discharge modified the Li passivation layer, which resulted in increased Li corrosion and decreased cell capacity. The degradation was greater at high temperature. Short-term partial discharge was also found to result in increased Li corrosion. Analysis of formation of the Li layer was studied by surface analytical techniques. Results were interpreted in terms of a primary layer, which was responsible for the passivation, and a thicker, porous secondary layer. Formation of the secondary layer is exacerbated by partial discharge. Keywords: Batteries, Passivation, Self-discharge, Storage, Performance.

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Document Details

Document Type
Technical Report
Publication Date
Dec 29, 1986
Accession Number
ADA193243

Entities

People

  • Harlan F. Bittner

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Charge Carriers
  • Chemistry
  • Corrosion
  • Degradation
  • Dielectric Gases
  • Dielectrics
  • High Temperature
  • Kinetics
  • Low Temperature
  • Materials
  • Materials Science
  • Physics
  • Polarization
  • Security
  • Spectra
  • Spectroscopy

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies