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A study of pyrite-based cathodes for ambient temperature lithium batteries by in situ57Fe Mossbauer spectroscopy

✍ Scribed by Rosamaria Fong; C.H.W. Jones; J.R. Dahn

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 394 KB
Volume: 26
Category: Article
ISSN: 0378-7753
DOI: 10.1016/0378-7753(89)80143-0

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✦ Synopsis

The electrochemical behaviour of Li/FeSs and Li/LizFeS, cells near room temperature has been studied by in situ 57Fe MSssbauer spectroscopy. We describe the design of the in situ Mijssbauer electrochemical cell which was used to monitor the electronic properties of the cathode host while the cell was charged and discharged. When Li/FeS* and Li/Li,FeS, cells are charged to 2.8 V, the cathode is a mixture of non-stoichiometric FeS and S. At ambient temperature, these cells show poor reversibility.

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