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Electrochemistry of Pyrite‐Based Cathodes for Ambient Temperature Lithium Batteries

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Fong, Rosamaría, Dahn, J. R., Jones, C. H. W.·1989·Journal of The Electrochemical Society

Abstract

The charge and discharge mechanisms of and cells near room temperature are studied by in situ x‐ray diffraction and in situ 57 Fe Mössbauer spectroscopy. The electrochemical behavior of these cells are compared, and their cell reactions are described. For , the cycling behavior of is reversible. However, for , structural decomposition of occurs, and disproportionation to nonstoichiometric and S is observed. Similarly, when cells are recharged to 2.8V, the cathode is a mixture of and S. Examination of the mixture by differential scanning calorimetry shows that and S react to form above 200°C. This explains why high temperature cells cycle reversibly while ambient temperature cells show poor reversibility.

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Metadata

Authors
Fong, R., Dahn, J. R., & Jones, C. H. W.
Venue
Journal of The Electrochemical Society
Published
1989-11-01
Volume
136
Issue
11
Pages
3206-3210
ISSN
  • 0013-4651 (ISSN-L)
  • 1945-7111
OpenAlex
W2105745725
Cited by
167
References
0
FWCI
0.94
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Electrochemistry of Pyrite‐Based Cathodes for Ambient Temperature Lithium Batteries. https://app.cochat.ai/papers/10.1149/1.2096426
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Fong, R., Dahn, J. R., & Jones, C. H. W. (1989). Electrochemistry of Pyrite‐Based Cathodes for Ambient Temperature Lithium Batteries. Journal of The Electrochemical Society. https://doi.org/10.1149/1.2096426

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.