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Modified chromium oxides for high-rate lithium intercalation cathodes

✍ Scribed by J.O. Besenhard; M. Schwake; N. Misailidis

Book ID
103898467
Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
408 KB
Volume
26
Category
Article
ISSN
0378-7753

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✦ Synopsis

Normal pressure thermal decomposition of CrOs containing cu. 2.5 wt.% SO3 yields a new chromium oxide phase CrO,(SO)s, x being close to 2.5. This material is different from Cr,Os and is practically free from sulfur. Sulphur trioxide obviously acts as a catalyst for oxygen removal. Compared with CrsOs, CrO,(SOs) is characterized by better high rate discharge behaviour. Moreover, CrOs contamination in Cr0,(S03) is much lower than in CrsOs prepared at normal pressure; this is of importance for the long-term storage behaviour of Li/CrO, batteries. The low-rate energy density of CrO,(SOs) is inferior to that of CrsOs.

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Chromium oxides as cathodes for lithium
Chromium oxides as cathodes for lithium cells
✍ Y. Takeda; R. Kanno; Y. Tsuji; O. Yamamoto; H. Taguch πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 277 KB

The performances of organic electrolyte lithium cells with the chromium oxides, CrZ03, CrOz, Cr,Ola, CrZ05, Cr6015, and CrsOs, as cathodes, have been examined. The discharge behaviors of the couples Li/CrzOs, Li/Cr601s, and Li/Cr,O,, gave satisfactory results, especially in terms of energy density.